notification & new gmail client

382 files changed, 63715 insertions, 36 deletions

diff --git a/Postman/Postman-Configuration/PostmanConfigurationController.php b/Postman/Postman-Configuration/PostmanConfigurationController.php
index 97972c2..6abb5e2 100644
--- a/Postman/Postman-Configuration/PostmanConfigurationController.php
+++ b/Postman/Postman-Configuration/PostmanConfigurationController.php
@@ -200,6 +200,7 @@ class PostmanConfigurationController {
 		print sprintf( '<li><a href="#message_config">%s</a></li>', __( 'Message', Postman::TEXT_DOMAIN ) );
 		print sprintf( '<li><a href="#logging_config">%s</a></li>', __( 'Logging', Postman::TEXT_DOMAIN ) );
 		print sprintf( '<li><a href="#advanced_options_config">%s</a></li>', __( 'Advanced', Postman::TEXT_DOMAIN ) );
+		print sprintf( '<li><a href="#notifications">%s</a></li>', __( 'Notifications', Postman::TEXT_DOMAIN ) );
 		print '</ul>';
 		print '<form method="post" action="options.php">';
 		// This prints out all hidden setting fields
@@ -248,6 +249,24 @@ class PostmanConfigurationController {
 		do_settings_sections( PostmanAdminController::NETWORK_OPTIONS );
 		do_settings_sections( PostmanAdminController::ADVANCED_OPTIONS );
 		print '</section>';
+
+		print '<section id="notifications">';
+		do_settings_sections( PostmanAdminController::NOTIFICATIONS_OPTIONS );
+
+			$currentKey = $this->options->getNotificationService();
+			$pushover = $currentKey == 'pushover' ? 'block' : 'none';
+			$slack = $currentKey == 'slack' ? 'block' : 'none';
+
+			echo '<div id="pushover_cred" style="display: ' . $pushover . ';">';
+			do_settings_sections( PostmanAdminController::NOTIFICATIONS_PUSHOVER_CRED );
+			echo '</div>';
+
+			echo '<div id="slack_cred" style="display: ' . $slack . ';">';
+			do_settings_sections( PostmanAdminController::NOTIFICATIONS_SLACK_CRED );
+			echo '</div>';
+
+		print '</section>';
+
 		submit_button();
 		print '</form>';
 		print '</div>';
@@ -362,7 +381,57 @@ class PostmanConfigurationController {
 		}
 		print '</fieldset>';
 
-		// Wizard Step 5
+		// Wizard Step 5 - Notificiations
+		printf( '<h5>%s</h5>', __( 'Notifications', Postman::TEXT_DOMAIN ) );
+		print '<fieldset>';
+		printf( '<legend>%s</legend>', __( 'Select a notify service to notify you when an email is failed to delivered.', Postman::TEXT_DOMAIN ) );
+
+		?>
+		<select id="input_notification_service" class="input_notification_service" name="postman_options[notification_service]">
+			<option value="default">Email</option>
+			<option value="pushover">Pushover</option>
+			<option value="slack">Slack</option>
+		</select>
+		<div id="pushover_cred" style="display: none;">
+			<h2><?php _e( 'Pushover Credentials', Postman::TEXT_DOMAIN ); ?></h2>
+			<table class="form-table">
+				<tbody>
+					<tr>
+						<th scope="row"><?php _e( 'Pushover User Key', Postman::TEXT_DOMAIN ); ?></th>
+						<td>
+							<input type="password" id="pushover_user" name="postman_options[pushover_user]" value="">
+						</td>
+					</tr>
+					<tr>
+						<th scope="row"><?php _e( 'Pushover App Token', Postman::TEXT_DOMAIN ); ?></th>
+						<td>
+							<input type="password" id="pushover_token" name="postman_options[pushover_token]" value="">
+						</td>
+					</tr>
+				</tbody>
+			</table>
+		</div>
+		<div id="slack_cred" style="display: none;">
+			<h2><?php _e( 'Slack Credentials', Postman::TEXT_DOMAIN ); ?></h2>
+			<table class="form-table">
+				<tbody>
+				<tr>
+					<th scope="row"><?php _e( 'Slack webhook', Postman::TEXT_DOMAIN ); ?></th>
+					<td>
+						<input type="password" id="slack_token" name="postman_options[slack_token]" value="">
+						<a target="_blank" class="" href="https://slack.postmansmtp.com/">
+							<?php _e( 'Get your webhook URL here.', Postman::TEXT_DOMAIN ); ?>
+						</a>
+					</td>
+				</tr>
+				</tbody>
+			</table>
+		</div>
+
+		<?php
+		print '</fieldset>';
+
+		// Wizard Step 6
 		printf( '<h5>%s</h5>', _x( 'Finish', 'The final step of the Wizard', Postman::TEXT_DOMAIN ) );
 		print '<fieldset>';
 		printf( '<legend>%s</legend>', _x( 'You\'re Done!', 'Wizard Step Title', Postman::TEXT_DOMAIN ) );
diff --git a/Postman/Postman-Configuration/PostmanRegisterConfigurationSettings.php b/Postman/Postman-Configuration/PostmanRegisterConfigurationSettings.php
index e3a68b3..1daedf2 100644
--- a/Postman/Postman-Configuration/PostmanRegisterConfigurationSettings.php
+++ b/Postman/Postman-Configuration/PostmanRegisterConfigurationSettings.php
@@ -174,6 +174,45 @@ class PostmanSettingsRegistry {
 					$this,
 					'temporaryDirectoryCallback',
 			), PostmanAdminController::ADVANCED_OPTIONS, PostmanAdminController::ADVANCED_SECTION );
+
+			// Notifications
+			add_settings_section( PostmanAdminController::NOTIFICATIONS_SECTION, _x( 'Notifications Settings', 'Configuration Section Title', Postman::TEXT_DOMAIN ), array(
+				$this,
+				'printNotificationsSectionInfo',
+			), PostmanAdminController::NOTIFICATIONS_OPTIONS );
+
+			add_settings_field( PostmanOptions::NOTIFICATION_SERVICE, _x( 'Notification Service', 'Configuration Input Field', Postman::TEXT_DOMAIN ), array(
+				$this,
+				'notification_service_callback',
+			), PostmanAdminController::NOTIFICATIONS_OPTIONS, PostmanAdminController::NOTIFICATIONS_SECTION );
+
+			// Pushover
+			add_settings_section( 'pushover_credentials', _x( 'Pushover Credentials', 'Configuration Section Title', Postman::TEXT_DOMAIN ), array(
+				$this,
+				'printNotificationsSectionInfo',
+			), PostmanAdminController::NOTIFICATIONS_PUSHOVER_CRED );
+
+			add_settings_field( PostmanOptions::PUSHOVER_USER, _x( 'Pushover User Key', 'Configuration Input Field', Postman::TEXT_DOMAIN ), array(
+				$this,
+				'pushover_user_callback',
+			), PostmanAdminController::NOTIFICATIONS_PUSHOVER_CRED, 'pushover_credentials' );
+
+			add_settings_field( PostmanOptions::PUSHOVER_TOKEN, _x( 'Pushover App Token', 'Configuration Input Field', Postman::TEXT_DOMAIN ), array(
+				$this,
+				'pushover_token_callback',
+			), PostmanAdminController::NOTIFICATIONS_PUSHOVER_CRED, 'pushover_credentials' );
+
+			// Slack
+			add_settings_section( 'slack_credentials', _x( 'Slack Credentials', 'Configuration Section Title', Postman::TEXT_DOMAIN ), array(
+				$this,
+				'printNotificationsSectionInfo',
+			), PostmanAdminController::NOTIFICATIONS_SLACK_CRED );
+
+			add_settings_field( PostmanOptions::SLACK_TOKEN, _x( 'Slack Webhook', 'Configuration Input Field', Postman::TEXT_DOMAIN ), array(
+				$this,
+				'slack_token_callback',
+			), PostmanAdminController::NOTIFICATIONS_SLACK_CRED, 'slack_credentials' );
+
 		}
 	}
 
@@ -207,11 +246,19 @@ class PostmanSettingsRegistry {
 	public function printNetworkSectionInfo() {
 		print __( 'Increase the timeouts if your host is intermittenly failing to send mail. Be careful, this also correlates to how long your user must wait if the mail server is unreachable.', Postman::TEXT_DOMAIN );
 	}
+
 	/**
 	 * Print the Section text
 	 */
 	public function printAdvancedSectionInfo() {
 	}
+
+	/**
+	 * Print the Section text
+	 */
+	public function printNotificationsSectionInfo() {
+	}
+
 	/**
 	 * Print the Section text
 	 */
@@ -345,7 +392,7 @@ class PostmanSettingsRegistry {
 	 * Get the settings option array and print one of its values
 	 */
 	public function log_level_callback() {
-		$inputDescription = sprintf( __( 'Log Level specifies the level of detail written to the <a target="_blank" href="%s">WordPress Debug log</a> - view the log with <a target-"_blank" href="%s">Debug</a>.', Postman::TEXT_DOMAIN ), 'https://codex.wordpress.org/Debugging_in_WordPress', 'https://wordpress.org/plugins/debug/' );
+		$inputDescription = sprintf( __( 'Log Level specifies the level of detail written to the <a target="_blank" href="%s">WordPress Debug log</a> - view the log with <a target-"_new" href="%s">Debug</a>.', Postman::TEXT_DOMAIN ), 'https://codex.wordpress.org/Debugging_in_WordPress', 'https://wordpress.org/plugins/debug/' );
 		printf( '<select id="input_%2$s" class="input_%2$s" name="%1$s[%2$s]">', PostmanOptions::POSTMAN_OPTIONS, PostmanOptions::LOG_LEVEL );
 		$currentKey = $this->options->getLogLevel();
 		$this->printSelectOption( __( 'Off', Postman::TEXT_DOMAIN ), PostmanLogger::OFF_INT, $currentKey );
@@ -356,6 +403,32 @@ class PostmanSettingsRegistry {
 		$this->printSelectOption( __( 'Error', Postman::TEXT_DOMAIN ), PostmanLogger::ERROR_INT, $currentKey );
 		printf( '</select><br/><span class="postman_input_description">%s</span>', $inputDescription );
 	}
+
+	public function notification_service_callback() {
+		$inputDescription =  __( 'Select the notification service you want to recieve alerts about failed emails.' );
+		printf( '<select id="input_%2$s" class="input_%2$s" name="%1$s[%2$s]">', PostmanOptions::POSTMAN_OPTIONS, PostmanOptions::NOTIFICATION_SERVICE );
+		$currentKey = $this->options->getNotificationService();
+
+		$this->printSelectOption( __( 'Email', Postman::TEXT_DOMAIN ), 'default', $currentKey );
+		$this->printSelectOption( __( 'Pushover', Postman::TEXT_DOMAIN ), 'pushover', $currentKey );
+		$this->printSelectOption( __( 'Slack', Postman::TEXT_DOMAIN ), 'slack', $currentKey );
+		printf( '</select><br/><span class="postman_input_description">%s</span>', $inputDescription );
+	}
+
+	public function pushover_user_callback() {
+		printf( '<input type="password" id="pushover_user" name="%s[%s]" value="%s" />', PostmanOptions::POSTMAN_OPTIONS, PostmanOptions::PUSHOVER_USER, $this->options->getPushoverUser() );
+	}
+
+	public function pushover_token_callback() {
+		printf( '<input type="password" id="pushover_token" name="%s[%s]" value="%s" />', PostmanOptions::POSTMAN_OPTIONS, PostmanOptions::PUSHOVER_TOKEN, $this->options->getPushoverToken() );
+	}
+
+	public function slack_token_callback() {
+		printf( '<input type="password" id="slack_token" name="%s[%s]" value="%s" />', PostmanOptions::POSTMAN_OPTIONS, PostmanOptions::SLACK_TOKEN, $this->options->getPushoverToken() );
+		echo '<a target="_blank" href="https://slack.postmansmtp.com/">' . __( 'Get your webhook URL here', Postman::TEXT_DOMAIN ) . '</a>';
+
+	}
+
 	private function printSelectOption( $label, $optionKey, $currentKey ) {
 		$optionPattern = '<option value="%1$s" %2$s>%3$s</option>';
 		printf( $optionPattern, $optionKey, $optionKey == $currentKey ? 'selected="selected"' : '', $label );
@@ -369,9 +442,11 @@ class PostmanSettingsRegistry {
 		$this->printSelectOption( __( 'Delete All Emails', Postman::TEXT_DOMAIN ), PostmanOptions::RUN_MODE_IGNORE, $currentKey );
 		printf( '</select><br/><span class="postman_input_description">%s</span>', $inputDescription );
 	}
+
 	public function stealthModeCallback() {
 		printf( '<input type="checkbox" id="input_%2$s" class="input_%2$s" name="%1$s[%2$s]" %3$s /> %4$s', PostmanOptions::POSTMAN_OPTIONS, PostmanOptions::STEALTH_MODE, $this->options->isStealthModeEnabled() ? 'checked="checked"' : '', __( 'Remove the Postman X-Header signature from messages', Postman::TEXT_DOMAIN ) );
 	}
+
 	public function temporaryDirectoryCallback() {
 		$inputDescription = __( 'Lockfiles are written here to prevent users from triggering an OAuth 2.0 token refresh at the same time.' );
 		printf( '<input type="text" id="input_%2$s" name="%1$s[%2$s]" value="%3$s" />', PostmanOptions::POSTMAN_OPTIONS, PostmanOptions::TEMPORARY_DIRECTORY, $this->options->getTempDirectory() );
diff --git a/Postman/Postman-Configuration/postman_manual_config.js b/Postman/Postman-Configuration/postman_manual_config.js
index 14d4d9f..e7668b7 100644
--- a/Postman/Postman-Configuration/postman_manual_config.js
+++ b/Postman/Postman-Configuration/postman_manual_config.js
@@ -23,6 +23,26 @@ jQuery(document).ready(
 				switchBetweenPasswordAndOAuth();
 			});
 
+			jQuery('select#input_notification_service').change(function() {
+				var selected = $( this ).val();
+
+				if ( selected == 'default' ) {
+					$('#slack_cred').fadeOut('fast');
+					$('#pushover_cred').fadeOut('fast');
+				}
+
+				if ( selected == 'pushover' ) {
+					$('#slack_cred').fadeOut('fast');
+					$('#pushover_cred').fadeIn();
+				}
+
+				if ( selected == 'slack' ) {
+					$('#pushover_cred').fadeOut('fast');
+					$('#slack_cred').fadeIn();
+				}
+			});
+			
+
 			// add an event on the authentication input field
 			// on user changing the auth type, determine whether to show
 			// password or oauth section
@@ -52,6 +72,7 @@ jQuery(document).ready(
 				}
 			}
 		});
+
 function reloadOauthSection() {
 	var hostname = jQuery(postman_hostname_element_name).val();
 	var transport = jQuery('#input_transport_type').val();
@@ -74,5 +95,5 @@ function switchBetweenPasswordAndOAuth() {
 	var transportName = jQuery('select#input_transport_type').val();
 	transports.forEach(function(item) {
 		item.handleTransportChange(transportName);
-	})
+	});
 }
diff --git a/Postman/Postman-Configuration/postman_wizard.js b/Postman/Postman-Configuration/postman_wizard.js
index 097fd65..8e1a68c 100644
--- a/Postman/Postman-Configuration/postman_wizard.js
+++ b/Postman/Postman-Configuration/postman_wizard.js
@@ -492,6 +492,26 @@ function handleConfigurationResponse(response) {
 		}
 
 	}
+
+	jQuery('select#input_notification_service').change(function() {
+		var selected = $( this ).val();
+		
+		if ( selected == 'default' ) {
+			$('#slack_cred').fadeOut('fast');
+			$('#pushover_cred').fadeOut('fast');
+		}
+
+		if ( selected == 'pushover' ) {
+			$('#slack_cred').fadeOut('fast');
+			$('#pushover_cred').fadeIn();
+		}
+
+		if ( selected == 'slack' ) {
+			$('#pushover_cred').fadeOut('fast');
+			$('#slack_cred').fadeIn();
+		}
+	});
+
 	// add an event on the user port override field
 	jQuery('input.user_socket_override').change(function() {
 		userOverrideMenu();
diff --git a/Postman/Postman-Email-Log/PostmanEmailLogService.php b/Postman/Postman-Email-Log/PostmanEmailLogService.php
index a087916..ebb2e54 100644
--- a/Postman/Postman-Email-Log/PostmanEmailLogService.php
+++ b/Postman/Postman-Email-Log/PostmanEmailLogService.php
@@ -157,19 +157,41 @@ if ( ! class_exists( 'PostmanEmailLogService' ) ) {
 
 		private function checkForLogErrors( PostmanEmailLog $log ) {
 			$message = __( 'You getting this message because an error detected while delivered your email.', Postman::TEXT_DOMAIN );
-			$message .= "\r\n" . __( 'You are welcome to post a support issue.', Postman::TEXT_DOMAIN );
-			$message .= "\r\n" . __( 'The log to paste with your support issue:', Postman::TEXT_DOMAIN ) . "\r\n";
+			$message .= "\r\n" . sprintf( __( 'For the domain: %1$s',Postman::TEXT_DOMAIN ), get_bloginfo('url') );
+			$message .= "\r\n" . __( 'The log to paste when you open a support issue:', Postman::TEXT_DOMAIN ) . "\r\n";
 
-			$to_email = get_bloginfo( 'admin_email' );
-			$domain = get_bloginfo( 'url' );
 			if ( $log->statusMessage && ! empty( $log->statusMessage ) ) {
-				mail( $to_email, "{$domain}: " .  __( 'Post SMTP email error', Postman::TEXT_DOMAIN ), $message . $log->statusMessage, null, "-f{$to_email}" );
+				require_once POST_PATH . '/Postman/notifications/PostmanNotify.php';
+
+				$message = $message . $log->statusMessage;
+
+				$notification_service = PostmanOptions::getInstance()->getNotificationService();
+				switch ($notification_service) {
+					case 'default':
+						$notifyer = new PostmanMailNotify;
+						break;
+					case 'pushover':
+						$notifyer = new PostmanPushoverNotify;
+						break;
+					case 'slack':
+						$notifyer = new PostmanSlackNotify;
+						break;
+					default:
+						$notifyer = new PostmanMailNotify;
+				}
+
+				$notify = new PostmanNotify( $notifyer, $message );
+				$notify->send($message, $log);
 			}
 
+			/**
+			 * @todo
+			 * After commented by me, check if it was needed.
+			 */
 			preg_match_all( '/(.*)From/s', $log->sessionTranscript, $matches );
 
 			if ( isset( $matches[1][0] ) && ! empty( $matches[1][0] ) && strpos( strtolower( $matches[1][0] ), 'error' ) !== false ) {
-				mail( $to_email, "{$domain}: " . __( 'Post SMTP session transcript error', Postman::TEXT_DOMAIN ), $message . $log->sessionTranscript, null, "-f{$to_email}" );
+				$message = $message . $log->sessionTranscript;
 			}
 		}
 
diff --git a/Postman/Postman-Mail/PostmanGmailApiModuleTransport.php b/Postman/Postman-Mail/PostmanGmailApiModuleTransport.php
index acb760d..ab568ea 100644
--- a/Postman/Postman-Mail/PostmanGmailApiModuleTransport.php
+++ b/Postman/Postman-Mail/PostmanGmailApiModuleTransport.php
@@ -61,12 +61,11 @@ class PostmanGmailApiModuleTransport extends PostmanAbstractZendModuleTransport
 		require_once 'PostmanGmailApiModuleZendMailTransport.php';
 		
 		// Gmail Client includes
-		require_once 'google-api-php-client-1.1.2/src/Google/Client.php';
-		require_once 'google-api-php-client-1.1.2/src/Google/Service/Gmail.php';
+		require_once 'google-api-client/vendor/autoload.php';
 		
 		// build the Gmail Client
 		$authToken = PostmanOAuthToken::getInstance ();
-		$client = new Postman_Google_Client ();
+		$client = new Google_Client ();
 		$client->setClientId ( $this->options->getClientId () );
 		$client->setClientSecret ( $this->options->getClientSecret () );
 		$client->setRedirectUri ( '' );
@@ -81,7 +80,7 @@ class PostmanGmailApiModuleTransport extends PostmanAbstractZendModuleTransport
 		$client->setAccessToken ( json_encode ( $token ) );
 		// We only need permissions to compose and send emails
 		$client->addScope ( "https://www.googleapis.com/auth/gmail.compose" );
-		$service = new Postman_Google_Service_Gmail ( $client );
+		$service = new Google_Service_Gmail ( $client );
 		$config [PostmanGmailApiModuleZendMailTransport::SERVICE_OPTION] = $service;
 		
 		return new PostmanGmailApiModuleZendMailTransport ( self::HOST, $config );
diff --git a/Postman/Postman-Mail/PostmanGmailApiModuleZendMailTransport.php b/Postman/Postman-Mail/PostmanGmailApiModuleZendMailTransport.php
index 58b5e5a..4cf9b31 100644
--- a/Postman/Postman-Mail/PostmanGmailApiModuleZendMailTransport.php
+++ b/Postman/Postman-Mail/PostmanGmailApiModuleZendMailTransport.php
@@ -181,19 +181,48 @@ if (! class_exists ( 'PostmanGmailApiModuleZendMailTransport' )) {
 		 * @todo Rename this to sendMail, it's a public method...
 		 */
 		public function _sendMail() {
-			
+
 			// Prepare the message in message/rfc822
 			$message = $this->header . Postman_Zend_Mime::LINEEND . $this->body;
 			$this->message = $message;
-			
+
 			// The message needs to be encoded in Base64URL
 			$encodedMessage = rtrim ( strtr ( base64_encode ( $message ), '+/', '-_' ), '=' );
-			$googleApiMessage = new Postman_Google_Service_Gmail_Message ();
+			$googleApiMessage = new Google_Service_Gmail_Message ();
 			$googleApiMessage->setRaw ( $encodedMessage );
 			$googleService = $this->_config [self::SERVICE_OPTION];
+			$googleClient = $googleService->getClient();
+			//$googleService = new Google_Service_Gmail($googleClient);
+
 			$result = array ();
 			try {
-				$result = $googleService->users_messages->send ( 'me', $googleApiMessage );
+				$googleClient->setDefer(true);
+				$result = $googleService->users_messages->send ( 'me', $googleApiMessage, array('uploadType' => 'resumable') );
+
+				$chunkSizeBytes = 1 * 1024 * 1024;
+
+				// create mediafile upload
+				$media = new Google_Http_MediaFileUpload(
+					$googleClient,
+					$result,
+					'message/rfc822',
+					$message,
+					true,
+					$chunkSizeBytes
+				);
+				$media->setFileSize(strlen($message));
+
+				$status = false;
+				while (! $status) {
+					$status = $media->nextChunk();
+				}
+				$result = false;
+
+				// Reset to the client to execute requests immediately in the future.
+				$googleClient->setDefer(false);
+
+				$googleMessageId = $status->getId();
+
 				if ($this->logger->isInfo ()) {
 					$this->logger->info ( sprintf ( 'Message %d accepted for delivery', PostmanState::getInstance ()->getSuccessfulDeliveries () + 1 ) );
 				}
@@ -207,6 +236,7 @@ if (! class_exists ( 'PostmanGmailApiModuleZendMailTransport' )) {
 				throw $e;
 			}
 		}
+
 		public function getMessage() {
 			return $this->message;
 		}
diff --git a/Postman/Postman-Mail/PostmanSendGridMailEngine.php b/Postman/Postman-Mail/PostmanSendGridMailEngine.php
index b6ddb83..28e3c83 100644
--- a/Postman/Postman-Mail/PostmanSendGridMailEngine.php
+++ b/Postman/Postman-Mail/PostmanSendGridMailEngine.php
@@ -65,13 +65,13 @@ if ( ! class_exists( 'PostmanSendGridMailEngine' ) ) {
 				$email = $recipient->getEmail();
 				if ( $counter == 0 ) {
 					$this->logger->debug( 'Adding to=' . $recipient->getEmail() );
-					$to = new SendGrid\Email( $recipient->getName(), $recipient->getEmail() );
+					$to = new SendGrid\Email($recipient->getName(), $recipient->getEmail() );
 					$duplicates[] = $email;
 				} else {
 					if ( ! in_array( $email, $duplicates ) ) {
 						$duplicates[] = $email;
 						$this->logger->debug( 'Adding personalization to=' . $recipient->getEmail() );
-						$emails[] = new SendGrid\Email( $recipient->getName(), $recipient->getEmail() );
+						$emails[] = new SendGrid\Email($recipient->getName(), $recipient->getEmail() );
 					}
 				}
 
@@ -84,22 +84,23 @@ if ( ! class_exists( 'PostmanSendGridMailEngine' ) ) {
 			}
 
 			// add the message content
+
 			$textPart = $message->getBodyTextPart();
 			if ( ! empty( $textPart ) ) {
 				$this->logger->debug( 'Adding body as text' );
-				$content = new SendGrid\Content( 'text/plain', $textPart );
+				$content = new SendGrid\Content("text/plain", $textPart);
 			}
 
 			$htmlPart = $message->getBodyHtmlPart();
 			if ( ! empty( $htmlPart ) ) {
 				$this->logger->debug( 'Adding body as html' );
-				$content = new SendGrid\Content( 'text/html', $htmlPart );
+				$content = new SendGrid\Content("text/html", $htmlPart);
 			}
 
-			$mail = new SendGrid\Mail( $from, $subject, $to, $content );
+			$mail = new SendGrid\Mail($from, $subject, $to, $content);
 
-			foreach ( $emails as $email ) {
-				$mail->personalization[0]->addTo( $email );
+			foreach ( $emails as $email) {
+				$mail->personalization[0]->addTo($email);
 			}
 
 			// add the reply-to
@@ -107,7 +108,7 @@ if ( ! class_exists( 'PostmanSendGridMailEngine' ) ) {
 			// $replyTo is null or a PostmanEmailAddress object
 			if ( isset( $replyTo ) ) {
 				$reply_to = new SendGrid\ReplyTo( $replyTo->getEmail(), $replyTo->getName() );
-				$mail->setReplyTo( $reply_to );
+				$mail->setReplyTo($reply_to);
 			}
 
 			// add the Postman signature - append it to whatever the user may have set
@@ -135,14 +136,15 @@ if ( ! class_exists( 'PostmanSendGridMailEngine' ) ) {
 					$email = new SendGrid\Email( $recipient->getName(), $recipient->getEmail() );
 					$mail->personalization[0]->addCc( $email );
 				}
+
 			}
 
 			// add the bcc recipients
 			foreach ( ( array ) $message->getBccRecipients() as $recipient ) {
 				if ( ! in_array( $recipient->getEmail(), $duplicates ) ) {
-					$recipient->log( $this->logger, 'Bcc' );
-					$email = new SendGrid\Email( $recipient->getName(), $recipient->getEmail() );
-					$mail->personalization[0]->addBcc( $email );
+					$recipient->log($this->logger, 'Bcc');
+					$email = new SendGrid\Email($recipient->getName(), $recipient->getEmail());
+					$mail->personalization[0]->addBcc($email);
 				}
 			}
 
@@ -159,12 +161,12 @@ if ( ! class_exists( 'PostmanSendGridMailEngine' ) ) {
 
 			foreach ( $attachments as $index => $attachment ) {
 				$attach = new SendGrid\Attachment();
-				$attach->setContent( $attachment['content'] );
-				$attach->setType( $attachment['type'] );
-				$attach->setFilename( $attachment['file_name'] );
-				$attach->setDisposition( 'attachment' );
-				$attach->setContentId( $attachment['id'] );
-				$mail->addAttachment( $attach );
+				$attach->setContent($attachment['content']);
+				$attach->setType($attachment['type']);
+				$attach->setFilename($attachment['file_name']);
+				$attach->setDisposition("attachment");
+				$attach->setContentId($attachment['id']);
+				$mail->addAttachment($attach);
 			}
 
 			try {
@@ -179,7 +181,7 @@ if ( ! class_exists( 'PostmanSendGridMailEngine' ) ) {
 					$this->logger->debug( 'Sending mail' );
 				}
 
-				$response = $sendgrid->client->mail()->send()->post( $mail );
+				$response = $sendgrid->client->mail()->send()->post($mail);
 				if ( $this->logger->isInfo() ) {
 					$this->logger->info( sprintf( 'Message %d accepted for delivery', PostmanState::getInstance()->getSuccessfulDeliveries() + 1 ) );
 				}
diff --git a/Postman/Postman-Mail/PostmanWooCommerce.php b/Postman/Postman-Mail/PostmanWooCommerce.php
new file mode 100644
index 0000000..a6a2e82
--- /dev/null
+++ b/Postman/Postman-Mail/PostmanWooCommerce.php
@@ -0,0 +1,149 @@
+<?php
+
+if ( ! class_exists( 'PostmanWoocommerce' ) ) {
+	class PostmanWoocommerce {
+
+		private $options;
+
+		public function __construct() {
+			$this->set_vars();
+			$this->hooks();
+		}
+
+		public function set_vars() {
+			$this->options = PostmanOptions::getInstance ();
+		}
+
+		public function hooks() {
+			add_filter( 'option_woocommerce_email_from_address', array( $this, 'set_postman_from_address' ), 10, 2 );
+			add_filter( 'woocommerce_email_from_address', array( $this, 'set_postman_from_address' ), 10, 2 );
+			add_filter( 'woocommerce_get_settings_email', array( $this, 'overide_email_settings' ) );
+		}
+
+		public function set_postman_from_address( $from_address, $WC_Email ) {
+			return $this->options->getMessageSenderEmail();
+		}
+
+		public function overide_email_settings( $settings ) {
+
+			return array(
+
+				array( 'title' => __( 'Email notifications', Postman::TEXT_DOMAIN ),  'desc' => __( 'Email notifications sent from WooCommerce are listed below. Click on an email to configure it.', Postman::TEXT_DOMAIN ), 'type' => 'title', 'id' => 'email_notification_settings' ),
+
+				array( 'type' => 'email_notification' ),
+
+				array( 'type' => 'sectionend', 'id' => 'email_notification_settings' ),
+
+				array( 'type' => 'sectionend', 'id' => 'email_recipient_options' ),
+
+				array( 'title' => __( 'Email sender options', Postman::TEXT_DOMAIN ), 'type' => 'title', 'desc' => '', 'id' => 'email_options' ),
+
+				array(
+					'title'    => __( '"From" name', Postman::TEXT_DOMAIN ),
+					'desc'     => __( 'How the sender name appears in outgoing WooCommerce emails.', Postman::TEXT_DOMAIN ),
+					'id'       => 'woocommerce_email_from_name',
+					'type'     => 'text',
+					'css'      => 'min-width:300px;',
+					'default'  => esc_attr( get_bloginfo( 'name', 'display' ) ),
+					'autoload' => false,
+					'desc_tip' => true,
+				),
+
+				array(
+					'title'             => __( '"From" address', Postman::TEXT_DOMAIN ),
+					'desc'              => __( 'This is overided by the account configured on Post SMTP plugin configuration.', Postman::TEXT_DOMAIN ),
+					'id'                => 'woocommerce_email_from_address',
+					'type'              => 'email',
+					'custom_attributes' => array(
+						'multiple' => 'multiple',
+						'disabled' => 'true',
+					),
+					'css'               => 'min-width:300px;',
+					'default'           => $this->options->getMessageSenderEmail(),
+					'autoload'          => false,
+					'desc_tip'          => true,
+				),
+
+				array( 'type' => 'sectionend', 'id' => 'email_options' ),
+
+				array( 'title' => __( 'Email template', Postman::TEXT_DOMAIN ), 'type' => 'title', 'desc' => sprintf( __( 'This section lets you customize the WooCommerce emails. <a href="%s" target="_blank">Click here to preview your email template</a>.', Postman::TEXT_DOMAIN ), wp_nonce_url( admin_url( '?preview_woocommerce_mail=true' ), 'preview-mail' ) ), 'id' => 'email_template_options' ),
+
+				array(
+					'title'       => __( 'Header image', Postman::TEXT_DOMAIN ),
+					'desc'        => __( 'URL to an image you want to show in the email header. Upload images using the media uploader (Admin > Media).', Postman::TEXT_DOMAIN ),
+					'id'          => 'woocommerce_email_header_image',
+					'type'        => 'text',
+					'css'         => 'min-width:300px;',
+					'placeholder' => __( 'N/A', Postman::TEXT_DOMAIN ),
+					'default'     => '',
+					'autoload'    => false,
+					'desc_tip'    => true,
+				),
+
+				array(
+					'title'       => __( 'Footer text', Postman::TEXT_DOMAIN ),
+					'desc'        => __( 'The text to appear in the footer of WooCommerce emails.', Postman::TEXT_DOMAIN ),
+					'id'          => 'woocommerce_email_footer_text',
+					'css'         => 'width:300px; height: 75px;',
+					'placeholder' => __( 'N/A', Postman::TEXT_DOMAIN ),
+					'type'        => 'textarea',
+					/* translators: %s: site name */
+					'default'     => get_bloginfo( 'name', 'display' ),
+					'autoload'    => false,
+					'desc_tip'    => true,
+				),
+
+				array(
+					'title'    => __( 'Base color', Postman::TEXT_DOMAIN ),
+					/* translators: %s: default color */
+					'desc'     => sprintf( __( 'The base color for WooCommerce email templates. Default %s.', Postman::TEXT_DOMAIN ), '<code>#96588a</code>' ),
+					'id'       => 'woocommerce_email_base_color',
+					'type'     => 'color',
+					'css'      => 'width:6em;',
+					'default'  => '#96588a',
+					'autoload' => false,
+					'desc_tip' => true,
+				),
+
+				array(
+					'title'    => __( 'Background color', Postman::TEXT_DOMAIN ),
+					/* translators: %s: default color */
+					'desc'     => sprintf( __( 'The background color for WooCommerce email templates. Default %s.', Postman::TEXT_DOMAIN ), '<code>#f7f7f7</code>' ),
+					'id'       => 'woocommerce_email_background_color',
+					'type'     => 'color',
+					'css'      => 'width:6em;',
+					'default'  => '#f7f7f7',
+					'autoload' => false,
+					'desc_tip' => true,
+				),
+
+				array(
+					'title'    => __( 'Body background color', Postman::TEXT_DOMAIN ),
+					/* translators: %s: default color */
+					'desc'     => sprintf( __( 'The main body background color. Default %s.', Postman::TEXT_DOMAIN ), '<code>#ffffff</code>' ),
+					'id'       => 'woocommerce_email_body_background_color',
+					'type'     => 'color',
+					'css'      => 'width:6em;',
+					'default'  => '#ffffff',
+					'autoload' => false,
+					'desc_tip' => true,
+				),
+
+				array(
+					'title'    => __( 'Body text color', Postman::TEXT_DOMAIN ),
+					/* translators: %s: default color */
+					'desc'     => sprintf( __( 'The main body text color. Default %s.', Postman::TEXT_DOMAIN ), '<code>#3c3c3c</code>' ),
+					'id'       => 'woocommerce_email_text_color',
+					'type'     => 'color',
+					'css'      => 'width:6em;',
+					'default'  => '#3c3c3c',
+					'autoload' => false,
+					'desc_tip' => true,
+				),
+
+				array( 'type' => 'sectionend', 'id' => 'email_template_options' ),
+
+			);
+		}
+	}
+}
\ No newline at end of file
diff --git a/Postman/Postman-Mail/Zend-1.12.10/Mail/Transport/Abstract.php b/Postman/Postman-Mail/Zend-1.12.10/Mail/Transport/Abstract.php
index 5ff71bc..791d422 100644
--- a/Postman/Postman-Mail/Zend-1.12.10/Mail/Transport/Abstract.php
+++ b/Postman/Postman-Mail/Zend-1.12.10/Mail/Transport/Abstract.php
@@ -132,7 +132,7 @@ abstract class Postman_Zend_Mail_Transport_Abstract
             if (!$type) {
                 if ($this->_mail->hasAttachments) {
                     $type = Postman_Zend_Mime::MULTIPART_MIXED;
-                } elseif ($this->_mail->getBodyText() && $this->_mail->getBodyHtml()) {
+                } elseif ($this->_mail->getBodyText() && $this->_mail->getBodyHtml() ) {
                     $type = Postman_Zend_Mime::MULTIPART_ALTERNATIVE;
                 } else {
                     $type = Postman_Zend_Mime::MULTIPART_MIXED;
diff --git a/Postman/Postman-Mail/google-api-client/composer.json b/Postman/Postman-Mail/google-api-client/composer.json
new file mode 100644
index 0000000..ea9cbdd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/composer.json
@@ -0,0 +1,5 @@
+{
+    "require": {
+        "google/apiclient": "^2.0"
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/composer.lock b/Postman/Postman-Mail/google-api-client/composer.lock
new file mode 100644
index 0000000..d148fd2
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/composer.lock
@@ -0,0 +1,702 @@
+{
+    "_readme": [
+        "This file locks the dependencies of your project to a known state",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "This file is @generated automatically"
+    ],
+    "hash": "a7c903877c49c9f3aa3784f99c4a9097",
+    "content-hash": "3e6e79e410cd98a8d86f36f772fe3690",
+    "packages": [
+        {
+            "name": "firebase/php-jwt",
+            "version": "v5.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/firebase/php-jwt.git",
+                "reference": "9984a4d3a32ae7673d6971ea00bae9d0a1abba0e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/firebase/php-jwt/zipball/9984a4d3a32ae7673d6971ea00bae9d0a1abba0e",
+                "reference": "9984a4d3a32ae7673d6971ea00bae9d0a1abba0e",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": " 4.8.35"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Firebase\\JWT\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Neuman Vong",
+                    "email": "neuman+pear@twilio.com",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Anant Narayanan",
+                    "email": "anant@php.net",
+                    "role": "Developer"
+                }
+            ],
+            "description": "A simple library to encode and decode JSON Web Tokens (JWT) in PHP. Should conform to the current spec.",
+            "homepage": "https://github.com/firebase/php-jwt",
+            "time": "2017-06-27 22:17:23"
+        },
+        {
+            "name": "google/apiclient",
+            "version": "v2.2.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/google/google-api-php-client.git",
+                "reference": "b69b8ac4bf6501793c389d4e013a79d09c85c5f2"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/google/google-api-php-client/zipball/b69b8ac4bf6501793c389d4e013a79d09c85c5f2",
+                "reference": "b69b8ac4bf6501793c389d4e013a79d09c85c5f2",
+                "shasum": ""
+            },
+            "require": {
+                "firebase/php-jwt": "~2.0|~3.0|~4.0|~5.0",
+                "google/apiclient-services": "~0.13",
+                "google/auth": "^1.0",
+                "guzzlehttp/guzzle": "~5.3.1|~6.0",
+                "guzzlehttp/psr7": "^1.2",
+                "monolog/monolog": "^1.17",
+                "php": ">=5.4",
+                "phpseclib/phpseclib": "~0.3.10|~2.0"
+            },
+            "require-dev": {
+                "cache/filesystem-adapter": "^0.3.2",
+                "phpunit/phpunit": "~4",
+                "squizlabs/php_codesniffer": "~2.3",
+                "symfony/css-selector": "~2.1",
+                "symfony/dom-crawler": "~2.1"
+            },
+            "suggest": {
+                "cache/filesystem-adapter": "For caching certs and tokens (using Google_Client::setCache)"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-0": {
+                    "Google_": "src/"
+                },
+                "classmap": [
+                    "src/Google/Service/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache-2.0"
+            ],
+            "description": "Client library for Google APIs",
+            "homepage": "http://developers.google.com/api-client-library/php",
+            "keywords": [
+                "google"
+            ],
+            "time": "2017-11-03 01:19:53"
+        },
+        {
+            "name": "google/apiclient-services",
+            "version": "v0.49",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/google/google-api-php-client-services.git",
+                "reference": "7552d7d1bb92e933fc93088014c8c2555c0feab6"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/google/google-api-php-client-services/zipball/7552d7d1bb92e933fc93088014c8c2555c0feab6",
+                "reference": "7552d7d1bb92e933fc93088014c8c2555c0feab6",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.4"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~4.8"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-0": {
+                    "Google_Service_": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache-2.0"
+            ],
+            "description": "Client library for Google APIs",
+            "homepage": "http://developers.google.com/api-client-library/php",
+            "keywords": [
+                "google"
+            ],
+            "time": "2018-03-04 00:24:05"
+        },
+        {
+            "name": "google/auth",
+            "version": "v1.2.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/google/google-auth-library-php.git",
+                "reference": "da0062d279c9459350808a4fb63dbc08b90d6b90"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/google/google-auth-library-php/zipball/da0062d279c9459350808a4fb63dbc08b90d6b90",
+                "reference": "da0062d279c9459350808a4fb63dbc08b90d6b90",
+                "shasum": ""
+            },
+            "require": {
+                "firebase/php-jwt": "~2.0|~3.0|~4.0|~5.0",
+                "guzzlehttp/guzzle": "~5.3.1|~6.0",
+                "guzzlehttp/psr7": "~1.2",
+                "php": ">=5.4",
+                "psr/cache": "^1.0",
+                "psr/http-message": "^1.0"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "^1.11",
+                "guzzlehttp/promises": "0.1.1|^1.3",
+                "phpunit/phpunit": "^4.8.36|^5.7",
+                "sebastian/comparator": ">=1.2.3"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Google\\Auth\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache-2.0"
+            ],
+            "description": "Google Auth Library for PHP",
+            "homepage": "http://github.com/google/google-auth-library-php",
+            "keywords": [
+                "Authentication",
+                "google",
+                "oauth2"
+            ],
+            "time": "2018-01-24 18:28:42"
+        },
+        {
+            "name": "guzzlehttp/guzzle",
+            "version": "6.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/guzzle/guzzle.git",
+                "reference": "f4db5a78a5ea468d4831de7f0bf9d9415e348699"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/f4db5a78a5ea468d4831de7f0bf9d9415e348699",
+                "reference": "f4db5a78a5ea468d4831de7f0bf9d9415e348699",
+                "shasum": ""
+            },
+            "require": {
+                "guzzlehttp/promises": "^1.0",
+                "guzzlehttp/psr7": "^1.4",
+                "php": ">=5.5"
+            },
+            "require-dev": {
+                "ext-curl": "*",
+                "phpunit/phpunit": "^4.0 || ^5.0",
+                "psr/log": "^1.0"
+            },
+            "suggest": {
+                "psr/log": "Required for using the Log middleware"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "6.2-dev"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "src/functions_include.php"
+                ],
+                "psr-4": {
+                    "GuzzleHttp\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Michael Dowling",
+                    "email": "mtdowling@gmail.com",
+                    "homepage": "https://github.com/mtdowling"
+                }
+            ],
+            "description": "Guzzle is a PHP HTTP client library",
+            "homepage": "http://guzzlephp.org/",
+            "keywords": [
+                "client",
+                "curl",
+                "framework",
+                "http",
+                "http client",
+                "rest",
+                "web service"
+            ],
+            "time": "2017-06-22 18:50:49"
+        },
+        {
+            "name": "guzzlehttp/promises",
+            "version": "v1.3.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/guzzle/promises.git",
+                "reference": "a59da6cf61d80060647ff4d3eb2c03a2bc694646"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/guzzle/promises/zipball/a59da6cf61d80060647ff4d3eb2c03a2bc694646",
+                "reference": "a59da6cf61d80060647ff4d3eb2c03a2bc694646",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.5.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.4-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "GuzzleHttp\\Promise\\": "src/"
+                },
+                "files": [
+                    "src/functions_include.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Michael Dowling",
+                    "email": "mtdowling@gmail.com",
+                    "homepage": "https://github.com/mtdowling"
+                }
+            ],
+            "description": "Guzzle promises library",
+            "keywords": [
+                "promise"
+            ],
+            "time": "2016-12-20 10:07:11"
+        },
+        {
+            "name": "guzzlehttp/psr7",
+            "version": "1.4.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/guzzle/psr7.git",
+                "reference": "f5b8a8512e2b58b0071a7280e39f14f72e05d87c"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/f5b8a8512e2b58b0071a7280e39f14f72e05d87c",
+                "reference": "f5b8a8512e2b58b0071a7280e39f14f72e05d87c",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.4.0",
+                "psr/http-message": "~1.0"
+            },
+            "provide": {
+                "psr/http-message-implementation": "1.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~4.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.4-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "GuzzleHttp\\Psr7\\": "src/"
+                },
+                "files": [
+                    "src/functions_include.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Michael Dowling",
+                    "email": "mtdowling@gmail.com",
+                    "homepage": "https://github.com/mtdowling"
+                },
+                {
+                    "name": "Tobias Schultze",
+                    "homepage": "https://github.com/Tobion"
+                }
+            ],
+            "description": "PSR-7 message implementation that also provides common utility methods",
+            "keywords": [
+                "http",
+                "message",
+                "request",
+                "response",
+                "stream",
+                "uri",
+                "url"
+            ],
+            "time": "2017-03-20 17:10:46"
+        },
+        {
+            "name": "monolog/monolog",
+            "version": "1.23.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/Seldaek/monolog.git",
+                "reference": "fd8c787753b3a2ad11bc60c063cff1358a32a3b4"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/Seldaek/monolog/zipball/fd8c787753b3a2ad11bc60c063cff1358a32a3b4",
+                "reference": "fd8c787753b3a2ad11bc60c063cff1358a32a3b4",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0",
+                "psr/log": "~1.0"
+            },
+            "provide": {
+                "psr/log-implementation": "1.0.0"
+            },
+            "require-dev": {
+                "aws/aws-sdk-php": "^2.4.9 || ^3.0",
+                "doctrine/couchdb": "~1.0@dev",
+                "graylog2/gelf-php": "~1.0",
+                "jakub-onderka/php-parallel-lint": "0.9",
+                "php-amqplib/php-amqplib": "~2.4",
+                "php-console/php-console": "^3.1.3",
+                "phpunit/phpunit": "~4.5",
+                "phpunit/phpunit-mock-objects": "2.3.0",
+                "ruflin/elastica": ">=0.90 <3.0",
+                "sentry/sentry": "^0.13",
+                "swiftmailer/swiftmailer": "^5.3|^6.0"
+            },
+            "suggest": {
+                "aws/aws-sdk-php": "Allow sending log messages to AWS services like DynamoDB",
+                "doctrine/couchdb": "Allow sending log messages to a CouchDB server",
+                "ext-amqp": "Allow sending log messages to an AMQP server (1.0+ required)",
+                "ext-mongo": "Allow sending log messages to a MongoDB server",
+                "graylog2/gelf-php": "Allow sending log messages to a GrayLog2 server",
+                "mongodb/mongodb": "Allow sending log messages to a MongoDB server via PHP Driver",
+                "php-amqplib/php-amqplib": "Allow sending log messages to an AMQP server using php-amqplib",
+                "php-console/php-console": "Allow sending log messages to Google Chrome",
+                "rollbar/rollbar": "Allow sending log messages to Rollbar",
+                "ruflin/elastica": "Allow sending log messages to an Elastic Search server",
+                "sentry/sentry": "Allow sending log messages to a Sentry server"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Monolog\\": "src/Monolog"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
+                }
+            ],
+            "description": "Sends your logs to files, sockets, inboxes, databases and various web services",
+            "homepage": "http://github.com/Seldaek/monolog",
+            "keywords": [
+                "log",
+                "logging",
+                "psr-3"
+            ],
+            "time": "2017-06-19 01:22:40"
+        },
+        {
+            "name": "phpseclib/phpseclib",
+            "version": "2.0.10",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/phpseclib/phpseclib.git",
+                "reference": "d305b780829ea4252ed9400b3f5937c2c99b51d4"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/phpseclib/phpseclib/zipball/d305b780829ea4252ed9400b3f5937c2c99b51d4",
+                "reference": "d305b780829ea4252ed9400b3f5937c2c99b51d4",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "require-dev": {
+                "phing/phing": "~2.7",
+                "phpunit/phpunit": "^4.8.35|^5.7|^6.0",
+                "sami/sami": "~2.0",
+                "squizlabs/php_codesniffer": "~2.0"
+            },
+            "suggest": {
+                "ext-gmp": "Install the GMP (GNU Multiple Precision) extension in order to speed up arbitrary precision integer arithmetic operations.",
+                "ext-libsodium": "SSH2/SFTP can make use of some algorithms provided by the libsodium-php extension.",
+                "ext-mcrypt": "Install the Mcrypt extension in order to speed up a few other cryptographic operations.",
+                "ext-openssl": "Install the OpenSSL extension in order to speed up a wide variety of cryptographic operations."
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "phpseclib/bootstrap.php"
+                ],
+                "psr-4": {
+                    "phpseclib\\": "phpseclib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jim Wigginton",
+                    "email": "terrafrost@php.net",
+                    "role": "Lead Developer"
+                },
+                {
+                    "name": "Patrick Monnerat",
+                    "email": "pm@datasphere.ch",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Andreas Fischer",
+                    "email": "bantu@phpbb.com",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Hans-Jürgen Petrich",
+                    "email": "petrich@tronic-media.com",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Graham Campbell",
+                    "email": "graham@alt-three.com",
+                    "role": "Developer"
+                }
+            ],
+            "description": "PHP Secure Communications Library - Pure-PHP implementations of RSA, AES, SSH2, SFTP, X.509 etc.",
+            "homepage": "http://phpseclib.sourceforge.net",
+            "keywords": [
+                "BigInteger",
+                "aes",
+                "asn.1",
+                "asn1",
+                "blowfish",
+                "crypto",
+                "cryptography",
+                "encryption",
+                "rsa",
+                "security",
+                "sftp",
+                "signature",
+                "signing",
+                "ssh",
+                "twofish",
+                "x.509",
+                "x509"
+            ],
+            "time": "2018-02-19 04:29:13"
+        },
+        {
+            "name": "psr/cache",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/cache.git",
+                "reference": "d11b50ad223250cf17b86e38383413f5a6764bf8"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/cache/zipball/d11b50ad223250cf17b86e38383413f5a6764bf8",
+                "reference": "d11b50ad223250cf17b86e38383413f5a6764bf8",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Cache\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for caching libraries",
+            "keywords": [
+                "cache",
+                "psr",
+                "psr-6"
+            ],
+            "time": "2016-08-06 20:24:11"
+        },
+        {
+            "name": "psr/http-message",
+            "version": "1.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/http-message.git",
+                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/http-message/zipball/f6561bf28d520154e4b0ec72be95418abe6d9363",
+                "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Http\\Message\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for HTTP messages",
+            "homepage": "https://github.com/php-fig/http-message",
+            "keywords": [
+                "http",
+                "http-message",
+                "psr",
+                "psr-7",
+                "request",
+                "response"
+            ],
+            "time": "2016-08-06 14:39:51"
+        },
+        {
+            "name": "psr/log",
+            "version": "1.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/log.git",
+                "reference": "4ebe3a8bf773a19edfe0a84b6585ba3d401b724d"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/log/zipball/4ebe3a8bf773a19edfe0a84b6585ba3d401b724d",
+                "reference": "4ebe3a8bf773a19edfe0a84b6585ba3d401b724d",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Log\\": "Psr/Log/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for logging libraries",
+            "homepage": "https://github.com/php-fig/log",
+            "keywords": [
+                "log",
+                "psr",
+                "psr-3"
+            ],
+            "time": "2016-10-10 12:19:37"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": []
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/autoload.php b/Postman/Postman-Mail/google-api-client/vendor/autoload.php
new file mode 100644
index 0000000..192ed6a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/autoload.php
@@ -0,0 +1,7 @@
+<?php
+
+// autoload.php @generated by Composer
+
+require_once __DIR__ . '/composer' . '/autoload_real.php';
+
+return ComposerAutoloaderInit328b7bd4030afc05dcba77453babcc0c::getLoader();
diff --git a/Postman/Postman-Mail/google-api-client/vendor/composer/ClassLoader.php b/Postman/Postman-Mail/google-api-client/vendor/composer/ClassLoader.php
new file mode 100644
index 0000000..ff6ecfb
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/composer/ClassLoader.php
@@ -0,0 +1,413 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Autoload;
+
+/**
+ * ClassLoader implements a PSR-0, PSR-4 and classmap class loader.
+ *
+ *     $loader = new \Composer\Autoload\ClassLoader();
+ *
+ *     // register classes with namespaces
+ *     $loader->add('Symfony\Component', __DIR__.'/component');
+ *     $loader->add('Symfony',           __DIR__.'/framework');
+ *
+ *     // activate the autoloader
+ *     $loader->register();
+ *
+ *     // to enable searching the include path (eg. for PEAR packages)
+ *     $loader->setUseIncludePath(true);
+ *
+ * In this example, if you try to use a class in the Symfony\Component
+ * namespace or one of its children (Symfony\Component\Console for instance),
+ * the autoloader will first look for the class under the component/
+ * directory, and it will then fallback to the framework/ directory if not
+ * found before giving up.
+ *
+ * This class is loosely based on the Symfony UniversalClassLoader.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ * @see    http://www.php-fig.org/psr/psr-0/
+ * @see    http://www.php-fig.org/psr/psr-4/
+ */
+class ClassLoader
+{
+    // PSR-4
+    private $prefixLengthsPsr4 = array();
+    private $prefixDirsPsr4 = array();
+    private $fallbackDirsPsr4 = array();
+
+    // PSR-0
+    private $prefixesPsr0 = array();
+    private $fallbackDirsPsr0 = array();
+
+    private $useIncludePath = false;
+    private $classMap = array();
+
+    private $classMapAuthoritative = false;
+
+    public function getPrefixes()
+    {
+        if (!empty($this->prefixesPsr0)) {
+            return call_user_func_array('array_merge', $this->prefixesPsr0);
+        }
+
+        return array();
+    }
+
+    public function getPrefixesPsr4()
+    {
+        return $this->prefixDirsPsr4;
+    }
+
+    public function getFallbackDirs()
+    {
+        return $this->fallbackDirsPsr0;
+    }
+
+    public function getFallbackDirsPsr4()
+    {
+        return $this->fallbackDirsPsr4;
+    }
+
+    public function getClassMap()
+    {
+        return $this->classMap;
+    }
+
+    /**
+     * @param array $classMap Class to filename map
+     */
+    public function addClassMap(array $classMap)
+    {
+        if ($this->classMap) {
+            $this->classMap = array_merge($this->classMap, $classMap);
+        } else {
+            $this->classMap = $classMap;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix, either
+     * appending or prepending to the ones previously set for this prefix.
+     *
+     * @param string       $prefix  The prefix
+     * @param array|string $paths   The PSR-0 root directories
+     * @param bool         $prepend Whether to prepend the directories
+     */
+    public function add($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            if ($prepend) {
+                $this->fallbackDirsPsr0 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr0
+                );
+            } else {
+                $this->fallbackDirsPsr0 = array_merge(
+                    $this->fallbackDirsPsr0,
+                    (array) $paths
+                );
+            }
+
+            return;
+        }
+
+        $first = $prefix[0];
+        if (!isset($this->prefixesPsr0[$first][$prefix])) {
+            $this->prefixesPsr0[$first][$prefix] = (array) $paths;
+
+            return;
+        }
+        if ($prepend) {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixesPsr0[$first][$prefix]
+            );
+        } else {
+            $this->prefixesPsr0[$first][$prefix] = array_merge(
+                $this->prefixesPsr0[$first][$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace, either
+     * appending or prepending to the ones previously set for this namespace.
+     *
+     * @param string       $prefix  The prefix/namespace, with trailing '\\'
+     * @param array|string $paths   The PSR-4 base directories
+     * @param bool         $prepend Whether to prepend the directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function addPsr4($prefix, $paths, $prepend = false)
+    {
+        if (!$prefix) {
+            // Register directories for the root namespace.
+            if ($prepend) {
+                $this->fallbackDirsPsr4 = array_merge(
+                    (array) $paths,
+                    $this->fallbackDirsPsr4
+                );
+            } else {
+                $this->fallbackDirsPsr4 = array_merge(
+                    $this->fallbackDirsPsr4,
+                    (array) $paths
+                );
+            }
+        } elseif (!isset($this->prefixDirsPsr4[$prefix])) {
+            // Register directories for a new namespace.
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        } elseif ($prepend) {
+            // Prepend directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                (array) $paths,
+                $this->prefixDirsPsr4[$prefix]
+            );
+        } else {
+            // Append directories for an already registered namespace.
+            $this->prefixDirsPsr4[$prefix] = array_merge(
+                $this->prefixDirsPsr4[$prefix],
+                (array) $paths
+            );
+        }
+    }
+
+    /**
+     * Registers a set of PSR-0 directories for a given prefix,
+     * replacing any others previously set for this prefix.
+     *
+     * @param string       $prefix The prefix
+     * @param array|string $paths  The PSR-0 base directories
+     */
+    public function set($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr0 = (array) $paths;
+        } else {
+            $this->prefixesPsr0[$prefix[0]][$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Registers a set of PSR-4 directories for a given namespace,
+     * replacing any others previously set for this namespace.
+     *
+     * @param string       $prefix The prefix/namespace, with trailing '\\'
+     * @param array|string $paths  The PSR-4 base directories
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function setPsr4($prefix, $paths)
+    {
+        if (!$prefix) {
+            $this->fallbackDirsPsr4 = (array) $paths;
+        } else {
+            $length = strlen($prefix);
+            if ('\\' !== $prefix[$length - 1]) {
+                throw new \InvalidArgumentException("A non-empty PSR-4 prefix must end with a namespace separator.");
+            }
+            $this->prefixLengthsPsr4[$prefix[0]][$prefix] = $length;
+            $this->prefixDirsPsr4[$prefix] = (array) $paths;
+        }
+    }
+
+    /**
+     * Turns on searching the include path for class files.
+     *
+     * @param bool $useIncludePath
+     */
+    public function setUseIncludePath($useIncludePath)
+    {
+        $this->useIncludePath = $useIncludePath;
+    }
+
+    /**
+     * Can be used to check if the autoloader uses the include path to check
+     * for classes.
+     *
+     * @return bool
+     */
+    public function getUseIncludePath()
+    {
+        return $this->useIncludePath;
+    }
+
+    /**
+     * Turns off searching the prefix and fallback directories for classes
+     * that have not been registered with the class map.
+     *
+     * @param bool $classMapAuthoritative
+     */
+    public function setClassMapAuthoritative($classMapAuthoritative)
+    {
+        $this->classMapAuthoritative = $classMapAuthoritative;
+    }
+
+    /**
+     * Should class lookup fail if not found in the current class map?
+     *
+     * @return bool
+     */
+    public function isClassMapAuthoritative()
+    {
+        return $this->classMapAuthoritative;
+    }
+
+    /**
+     * Registers this instance as an autoloader.
+     *
+     * @param bool $prepend Whether to prepend the autoloader or not
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+    }
+
+    /**
+     * Unregisters this instance as an autoloader.
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+    }
+
+    /**
+     * Loads the given class or interface.
+     *
+     * @param  string    $class The name of the class
+     * @return bool|null True if loaded, null otherwise
+     */
+    public function loadClass($class)
+    {
+        if ($file = $this->findFile($class)) {
+            includeFile($file);
+
+            return true;
+        }
+    }
+
+    /**
+     * Finds the path to the file where the class is defined.
+     *
+     * @param string $class The name of the class
+     *
+     * @return string|false The path if found, false otherwise
+     */
+    public function findFile($class)
+    {
+        // work around for PHP 5.3.0 - 5.3.2 https://bugs.php.net/50731
+        if ('\\' == $class[0]) {
+            $class = substr($class, 1);
+        }
+
+        // class map lookup
+        if (isset($this->classMap[$class])) {
+            return $this->classMap[$class];
+        }
+        if ($this->classMapAuthoritative) {
+            return false;
+        }
+
+        $file = $this->findFileWithExtension($class, '.php');
+
+        // Search for Hack files if we are running on HHVM
+        if ($file === null && defined('HHVM_VERSION')) {
+            $file = $this->findFileWithExtension($class, '.hh');
+        }
+
+        if ($file === null) {
+            // Remember that this class does not exist.
+            return $this->classMap[$class] = false;
+        }
+
+        return $file;
+    }
+
+    private function findFileWithExtension($class, $ext)
+    {
+        // PSR-4 lookup
+        $logicalPathPsr4 = strtr($class, '\\', DIRECTORY_SEPARATOR) . $ext;
+
+        $first = $class[0];
+        if (isset($this->prefixLengthsPsr4[$first])) {
+            foreach ($this->prefixLengthsPsr4[$first] as $prefix => $length) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($this->prefixDirsPsr4[$prefix] as $dir) {
+                        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-4 fallback dirs
+        foreach ($this->fallbackDirsPsr4 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr4)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 lookup
+        if (false !== $pos = strrpos($class, '\\')) {
+            // namespaced class name
+            $logicalPathPsr0 = substr($logicalPathPsr4, 0, $pos + 1)
+                . strtr(substr($logicalPathPsr4, $pos + 1), '_', DIRECTORY_SEPARATOR);
+        } else {
+            // PEAR-like class name
+            $logicalPathPsr0 = strtr($class, '_', DIRECTORY_SEPARATOR) . $ext;
+        }
+
+        if (isset($this->prefixesPsr0[$first])) {
+            foreach ($this->prefixesPsr0[$first] as $prefix => $dirs) {
+                if (0 === strpos($class, $prefix)) {
+                    foreach ($dirs as $dir) {
+                        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                            return $file;
+                        }
+                    }
+                }
+            }
+        }
+
+        // PSR-0 fallback dirs
+        foreach ($this->fallbackDirsPsr0 as $dir) {
+            if (file_exists($file = $dir . DIRECTORY_SEPARATOR . $logicalPathPsr0)) {
+                return $file;
+            }
+        }
+
+        // PSR-0 include paths.
+        if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
+            return $file;
+        }
+    }
+}
+
+/**
+ * Scope isolated include.
+ *
+ * Prevents access to $this/self from included files.
+ */
+function includeFile($file)
+{
+    include $file;
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/composer/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/composer/LICENSE
new file mode 100644
index 0000000..ee274f1
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/composer/LICENSE
@@ -0,0 +1,433 @@
+Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: Composer
+Upstream-Contact: Jordi Boggiano <j.boggiano@seld.be>
+Source: https://github.com/composer/composer
+
+Files: *
+Copyright: 2016, Nils Adermann <naderman@naderman.de>
+           2016, Jordi Boggiano <j.boggiano@seld.be>
+License: Expat
+
+Files: res/cacert.pem
+Copyright: 2015, Mozilla Foundation
+License: MPL-2.0
+
+Files: src/Composer/Util/RemoteFilesystem.php
+       src/Composer/Util/TlsHelper.php
+Copyright: 2016, Nils Adermann <naderman@naderman.de>
+           2016, Jordi Boggiano <j.boggiano@seld.be>
+           2013, Evan Coury <me@evancoury.com>
+License: Expat and BSD-2-Clause
+
+License: BSD-2-Clause
+ Redistribution and use in source and binary forms, with or without modification,
+ are permitted provided that the following conditions are met:
+ .
+     * Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+ .
+     * Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation
+       and/or other materials provided with the distribution.
+ .
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+License: Expat
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is furnished
+ to do so, subject to the following conditions:
+ .
+ The above copyright notice and this permission notice shall be included in all
+ copies or substantial portions of the Software.
+ .
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+
+License: MPL-2.0
+ 1. Definitions
+ --------------
+ .
+ 1.1. "Contributor"
+     means each individual or legal entity that creates, contributes to
+     the creation of, or owns Covered Software.
+ .
+ 1.2. "Contributor Version"
+     means the combination of the Contributions of others (if any) used
+     by a Contributor and that particular Contributor's Contribution.
+ .
+ 1.3. "Contribution"
+     means Covered Software of a particular Contributor.
+ .
+ 1.4. "Covered Software"
+     means Source Code Form to which the initial Contributor has attached
+     the notice in Exhibit A, the Executable Form of such Source Code
+     Form, and Modifications of such Source Code Form, in each case
+     including portions thereof.
+ .
+ 1.5. "Incompatible With Secondary Licenses"
+     means
+ .
+     (a) that the initial Contributor has attached the notice described
+         in Exhibit B to the Covered Software; or
+ .
+     (b) that the Covered Software was made available under the terms of
+         version 1.1 or earlier of the License, but not also under the
+         terms of a Secondary License.
+ .
+ 1.6. "Executable Form"
+     means any form of the work other than Source Code Form.
+ .
+ 1.7. "Larger Work"
+     means a work that combines Covered Software with other material, in
+     a separate file or files, that is not Covered Software.
+ .
+ 1.8. "License"
+     means this document.
+ .
+ 1.9. "Licensable"
+     means having the right to grant, to the maximum extent possible,
+     whether at the time of the initial grant or subsequently, any and
+     all of the rights conveyed by this License.
+ .
+ 1.10. "Modifications"
+     means any of the following:
+ .
+     (a) any file in Source Code Form that results from an addition to,
+         deletion from, or modification of the contents of Covered
+         Software; or
+ .
+     (b) any new file in Source Code Form that contains any Covered
+         Software.
+ .
+ 1.11. "Patent Claims" of a Contributor
+     means any patent claim(s), including without limitation, method,
+     process, and apparatus claims, in any patent Licensable by such
+     Contributor that would be infringed, but for the grant of the
+     License, by the making, using, selling, offering for sale, having
+     made, import, or transfer of either its Contributions or its
+     Contributor Version.
+ .
+ 1.12. "Secondary License"
+     means either the GNU General Public License, Version 2.0, the GNU
+     Lesser General Public License, Version 2.1, the GNU Affero General
+     Public License, Version 3.0, or any later versions of those
+     licenses.
+ .
+ 1.13. "Source Code Form"
+     means the form of the work preferred for making modifications.
+ .
+ 1.14. "You" (or "Your")
+     means an individual or a legal entity exercising rights under this
+     License. For legal entities, "You" includes any entity that
+     controls, is controlled by, or is under common control with You. For
+     purposes of this definition, "control" means (a) the power, direct
+     or indirect, to cause the direction or management of such entity,
+     whether by contract or otherwise, or (b) ownership of more than
+     fifty percent (50%) of the outstanding shares or beneficial
+     ownership of such entity.
+ .
+ 2. License Grants and Conditions
+ --------------------------------
+ .
+ 2.1. Grants
+ .
+ Each Contributor hereby grants You a world-wide, royalty-free,
+ non-exclusive license:
+ .
+ (a) under intellectual property rights (other than patent or trademark)
+     Licensable by such Contributor to use, reproduce, make available,
+     modify, display, perform, distribute, and otherwise exploit its
+     Contributions, either on an unmodified basis, with Modifications, or
+     as part of a Larger Work; and
+ .
+ (b) under Patent Claims of such Contributor to make, use, sell, offer
+     for sale, have made, import, and otherwise transfer either its
+     Contributions or its Contributor Version.
+ .
+ 2.2. Effective Date
+ .
+ The licenses granted in Section 2.1 with respect to any Contribution
+ become effective for each Contribution on the date the Contributor first
+ distributes such Contribution.
+ .
+ 2.3. Limitations on Grant Scope
+ .
+ The licenses granted in this Section 2 are the only rights granted under
+ this License. No additional rights or licenses will be implied from the
+ distribution or licensing of Covered Software under this License.
+ Notwithstanding Section 2.1(b) above, no patent license is granted by a
+ Contributor:
+ .
+ (a) for any code that a Contributor has removed from Covered Software;
+     or
+ .
+ (b) for infringements caused by: (i) Your and any other third party's
+     modifications of Covered Software, or (ii) the combination of its
+     Contributions with other software (except as part of its Contributor
+     Version); or
+ .
+ (c) under Patent Claims infringed by Covered Software in the absence of
+     its Contributions.
+ .
+ This License does not grant any rights in the trademarks, service marks,
+ or logos of any Contributor (except as may be necessary to comply with
+ the notice requirements in Section 3.4).
+ .
+ 2.4. Subsequent Licenses
+ .
+ No Contributor makes additional grants as a result of Your choice to
+ distribute the Covered Software under a subsequent version of this
+ License (see Section 10.2) or under the terms of a Secondary License (if
+ permitted under the terms of Section 3.3).
+ .
+ 2.5. Representation
+ .
+ Each Contributor represents that the Contributor believes its
+ Contributions are its original creation(s) or it has sufficient rights
+ to grant the rights to its Contributions conveyed by this License.
+ .
+ 2.6. Fair Use
+ .
+ This License is not intended to limit any rights You have under
+ applicable copyright doctrines of fair use, fair dealing, or other
+ equivalents.
+ .
+ 2.7. Conditions
+ .
+ Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+ in Section 2.1.
+ .
+ 3. Responsibilities
+ -------------------
+ .
+ 3.1. Distribution of Source Form
+ .
+ All distribution of Covered Software in Source Code Form, including any
+ Modifications that You create or to which You contribute, must be under
+ the terms of this License. You must inform recipients that the Source
+ Code Form of the Covered Software is governed by the terms of this
+ License, and how they can obtain a copy of this License. You may not
+ attempt to alter or restrict the recipients' rights in the Source Code
+ Form.
+ .
+ 3.2. Distribution of Executable Form
+ .
+ If You distribute Covered Software in Executable Form then:
+ .
+ (a) such Covered Software must also be made available in Source Code
+     Form, as described in Section 3.1, and You must inform recipients of
+     the Executable Form how they can obtain a copy of such Source Code
+     Form by reasonable means in a timely manner, at a charge no more
+     than the cost of distribution to the recipient; and
+ .
+ (b) You may distribute such Executable Form under the terms of this
+     License, or sublicense it under different terms, provided that the
+     license for the Executable Form does not attempt to limit or alter
+     the recipients' rights in the Source Code Form under this License.
+ .
+ 3.3. Distribution of a Larger Work
+ .
+ You may create and distribute a Larger Work under terms of Your choice,
+ provided that You also comply with the requirements of this License for
+ the Covered Software. If the Larger Work is a combination of Covered
+ Software with a work governed by one or more Secondary Licenses, and the
+ Covered Software is not Incompatible With Secondary Licenses, this
+ License permits You to additionally distribute such Covered Software
+ under the terms of such Secondary License(s), so that the recipient of
+ the Larger Work may, at their option, further distribute the Covered
+ Software under the terms of either this License or such Secondary
+ License(s).
+ .
+ 3.4. Notices
+ .
+ You may not remove or alter the substance of any license notices
+ (including copyright notices, patent notices, disclaimers of warranty,
+ or limitations of liability) contained within the Source Code Form of
+ the Covered Software, except that You may alter any license notices to
+ the extent required to remedy known factual inaccuracies.
+ .
+ 3.5. Application of Additional Terms
+ .
+ You may choose to offer, and to charge a fee for, warranty, support,
+ indemnity or liability obligations to one or more recipients of Covered
+ Software. However, You may do so only on Your own behalf, and not on
+ behalf of any Contributor. You must make it absolutely clear that any
+ such warranty, support, indemnity, or liability obligation is offered by
+ You alone, and You hereby agree to indemnify every Contributor for any
+ liability incurred by such Contributor as a result of warranty, support,
+ indemnity or liability terms You offer. You may include additional
+ disclaimers of warranty and limitations of liability specific to any
+ jurisdiction.
+ .
+ 4. Inability to Comply Due to Statute or Regulation
+ ---------------------------------------------------
+ .
+ If it is impossible for You to comply with any of the terms of this
+ License with respect to some or all of the Covered Software due to
+ statute, judicial order, or regulation then You must: (a) comply with
+ the terms of this License to the maximum extent possible; and (b)
+ describe the limitations and the code they affect. Such description must
+ be placed in a text file included with all distributions of the Covered
+ Software under this License. Except to the extent prohibited by statute
+ or regulation, such description must be sufficiently detailed for a
+ recipient of ordinary skill to be able to understand it.
+ .
+ 5. Termination
+ --------------
+ .
+ 5.1. The rights granted under this License will terminate automatically
+ if You fail to comply with any of its terms. However, if You become
+ compliant, then the rights granted under this License from a particular
+ Contributor are reinstated (a) provisionally, unless and until such
+ Contributor explicitly and finally terminates Your grants, and (b) on an
+ ongoing basis, if such Contributor fails to notify You of the
+ non-compliance by some reasonable means prior to 60 days after You have
+ come back into compliance. Moreover, Your grants from a particular
+ Contributor are reinstated on an ongoing basis if such Contributor
+ notifies You of the non-compliance by some reasonable means, this is the
+ first time You have received notice of non-compliance with this License
+ from such Contributor, and You become compliant prior to 30 days after
+ Your receipt of the notice.
+ .
+ 5.2. If You initiate litigation against any entity by asserting a patent
+ infringement claim (excluding declaratory judgment actions,
+ counter-claims, and cross-claims) alleging that a Contributor Version
+ directly or indirectly infringes any patent, then the rights granted to
+ You by any and all Contributors for the Covered Software under Section
+ 2.1 of this License shall terminate.
+ .
+ 5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+ end user license agreements (excluding distributors and resellers) which
+ have been validly granted by You or Your distributors under this License
+ prior to termination shall survive termination.
+ .
+  ************************************************************************
+  *                                                                      *
+  *  6. Disclaimer of Warranty                                           *
+  *  -------------------------                                           *
+  *                                                                      *
+  *  Covered Software is provided under this License on an "as is"       *
+  *  basis, without warranty of any kind, either expressed, implied, or  *
+  *  statutory, including, without limitation, warranties that the       *
+  *  Covered Software is free of defects, merchantable, fit for a        *
+  *  particular purpose or non-infringing. The entire risk as to the     *
+  *  quality and performance of the Covered Software is with You.        *
+  *  Should any Covered Software prove defective in any respect, You     *
+  *  (not any Contributor) assume the cost of any necessary servicing,   *
+  *  repair, or correction. This disclaimer of warranty constitutes an   *
+  *  essential part of this License. No use of any Covered Software is   *
+  *  authorized under this License except under this disclaimer.         *
+  *                                                                      *
+  ************************************************************************
+ .
+  ************************************************************************
+  *                                                                      *
+  *  7. Limitation of Liability                                          *
+  *  --------------------------                                          *
+  *                                                                      *
+  *  Under no circumstances and under no legal theory, whether tort      *
+  *  (including negligence), contract, or otherwise, shall any           *
+  *  Contributor, or anyone who distributes Covered Software as          *
+  *  permitted above, be liable to You for any direct, indirect,         *
+  *  special, incidental, or consequential damages of any character      *
+  *  including, without limitation, damages for lost profits, loss of    *
+  *  goodwill, work stoppage, computer failure or malfunction, or any    *
+  *  and all other commercial damages or losses, even if such party      *
+  *  shall have been informed of the possibility of such damages. This   *
+  *  limitation of liability shall not apply to liability for death or   *
+  *  personal injury resulting from such party's negligence to the       *
+  *  extent applicable law prohibits such limitation. Some               *
+  *  jurisdictions do not allow the exclusion or limitation of           *
+  *  incidental or consequential damages, so this exclusion and          *
+  *  limitation may not apply to You.                                    *
+  *                                                                      *
+  ************************************************************************
+ .
+ 8. Litigation
+ -------------
+ .
+ Any litigation relating to this License may be brought only in the
+ courts of a jurisdiction where the defendant maintains its principal
+ place of business and such litigation shall be governed by laws of that
+ jurisdiction, without reference to its conflict-of-law provisions.
+ Nothing in this Section shall prevent a party's ability to bring
+ cross-claims or counter-claims.
+ .
+ 9. Miscellaneous
+ ----------------
+ .
+ This License represents the complete agreement concerning the subject
+ matter hereof. If any provision of this License is held to be
+ unenforceable, such provision shall be reformed only to the extent
+ necessary to make it enforceable. Any law or regulation which provides
+ that the language of a contract shall be construed against the drafter
+ shall not be used to construe this License against a Contributor.
+ .
+ 10. Versions of the License
+ ---------------------------
+ .
+ 10.1. New Versions
+ .
+ Mozilla Foundation is the license steward. Except as provided in Section
+ 10.3, no one other than the license steward has the right to modify or
+ publish new versions of this License. Each version will be given a
+ distinguishing version number.
+ .
+ 10.2. Effect of New Versions
+ .
+ You may distribute the Covered Software under the terms of the version
+ of the License under which You originally received the Covered Software,
+ or under the terms of any subsequent version published by the license
+ steward.
+ .
+ 10.3. Modified Versions
+ .
+ If you create software not governed by this License, and you want to
+ create a new license for such software, you may create and use a
+ modified version of this License if you rename the license and remove
+ any references to the name of the license steward (except to note that
+ such modified license differs from this License).
+ .
+ 10.4. Distributing Source Code Form that is Incompatible With Secondary
+ Licenses
+ .
+ If You choose to distribute Source Code Form that is Incompatible With
+ Secondary Licenses under the terms of this version of the License, the
+ notice described in Exhibit B of this License must be attached.
+ .
+ Exhibit A - Source Code Form License Notice
+ -------------------------------------------
+ .
+   This Source Code Form is subject to the terms of the Mozilla Public
+   License, v. 2.0. If a copy of the MPL was not distributed with this
+   file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ .
+ If it is not possible or desirable to put the notice in a particular
+ file, then You may include the notice in a location (such as a LICENSE
+ file in a relevant directory) where a recipient would be likely to look
+ for such a notice.
+ .
+ You may add additional accurate notices of copyright ownership.
+ .
+ Exhibit B - "Incompatible With Secondary Licenses" Notice
+ ---------------------------------------------------------
+ .
+   This Source Code Form is "Incompatible With Secondary Licenses", as
+   defined by the Mozilla Public License, v. 2.0.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_classmap.php b/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_classmap.php
new file mode 100644
index 0000000..b6d8155
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_classmap.php
@@ -0,0 +1,11 @@
+<?php
+
+// autoload_classmap.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Google_Service_Exception' => $vendorDir . '/google/apiclient/src/Google/Service/Exception.php',
+    'Google_Service_Resource' => $vendorDir . '/google/apiclient/src/Google/Service/Resource.php',
+);
diff --git a/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_files.php b/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_files.php
new file mode 100644
index 0000000..56bb586
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_files.php
@@ -0,0 +1,13 @@
+<?php
+
+// autoload_files.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'a0edc8309cc5e1d60e3047b5df6b7052' => $vendorDir . '/guzzlehttp/psr7/src/functions_include.php',
+    'c964ee0ededf28c96ebd9db5099ef910' => $vendorDir . '/guzzlehttp/promises/src/functions_include.php',
+    '37a3dc5111fe8f707ab4c132ef1dbc62' => $vendorDir . '/guzzlehttp/guzzle/src/functions_include.php',
+    'decc78cc4436b1292c6c0d151b19445c' => $vendorDir . '/phpseclib/phpseclib/phpseclib/bootstrap.php',
+);
diff --git a/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_namespaces.php b/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_namespaces.php
new file mode 100644
index 0000000..aed9f84
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_namespaces.php
@@ -0,0 +1,11 @@
+<?php
+
+// autoload_namespaces.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'Google_Service_' => array($vendorDir . '/google/apiclient-services/src'),
+    'Google_' => array($vendorDir . '/google/apiclient/src'),
+);
diff --git a/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_psr4.php b/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_psr4.php
new file mode 100644
index 0000000..36bd6b5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_psr4.php
@@ -0,0 +1,19 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'phpseclib\\' => array($vendorDir . '/phpseclib/phpseclib/phpseclib'),
+    'Psr\\Log\\' => array($vendorDir . '/psr/log/Psr/Log'),
+    'Psr\\Http\\Message\\' => array($vendorDir . '/psr/http-message/src'),
+    'Psr\\Cache\\' => array($vendorDir . '/psr/cache/src'),
+    'Monolog\\' => array($vendorDir . '/monolog/monolog/src/Monolog'),
+    'GuzzleHttp\\Psr7\\' => array($vendorDir . '/guzzlehttp/psr7/src'),
+    'GuzzleHttp\\Promise\\' => array($vendorDir . '/guzzlehttp/promises/src'),
+    'GuzzleHttp\\' => array($vendorDir . '/guzzlehttp/guzzle/src'),
+    'Google\\Auth\\' => array($vendorDir . '/google/auth/src'),
+    'Firebase\\JWT\\' => array($vendorDir . '/firebase/php-jwt/src'),
+);
diff --git a/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_real.php b/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_real.php
new file mode 100644
index 0000000..911a302
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/composer/autoload_real.php
@@ -0,0 +1,59 @@
+<?php
+
+// autoload_real.php @generated by Composer
+
+class ComposerAutoloaderInit328b7bd4030afc05dcba77453babcc0c
+{
+    private static $loader;
+
+    public static function loadClassLoader($class)
+    {
+        if ('Composer\Autoload\ClassLoader' === $class) {
+            require __DIR__ . '/ClassLoader.php';
+        }
+    }
+
+    public static function getLoader()
+    {
+        if (null !== self::$loader) {
+            return self::$loader;
+        }
+
+        spl_autoload_register(array('ComposerAutoloaderInit328b7bd4030afc05dcba77453babcc0c', 'loadClassLoader'), true, true);
+        self::$loader = $loader = new \Composer\Autoload\ClassLoader();
+        spl_autoload_unregister(array('ComposerAutoloaderInit328b7bd4030afc05dcba77453babcc0c', 'loadClassLoader'));
+
+        $map = require __DIR__ . '/autoload_namespaces.php';
+        foreach ($map as $namespace => $path) {
+            $loader->set($namespace, $path);
+        }
+
+        $map = require __DIR__ . '/autoload_psr4.php';
+        foreach ($map as $namespace => $path) {
+            $loader->setPsr4($namespace, $path);
+        }
+
+        $classMap = require __DIR__ . '/autoload_classmap.php';
+        if ($classMap) {
+            $loader->addClassMap($classMap);
+        }
+
+        $loader->register(true);
+
+        $includeFiles = require __DIR__ . '/autoload_files.php';
+        foreach ($includeFiles as $fileIdentifier => $file) {
+            composerRequire328b7bd4030afc05dcba77453babcc0c($fileIdentifier, $file);
+        }
+
+        return $loader;
+    }
+}
+
+function composerRequire328b7bd4030afc05dcba77453babcc0c($fileIdentifier, $file)
+{
+    if (empty($GLOBALS['__composer_autoload_files'][$fileIdentifier])) {
+        require $file;
+
+        $GLOBALS['__composer_autoload_files'][$fileIdentifier] = true;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/composer/installed.json b/Postman/Postman-Mail/google-api-client/vendor/composer/installed.json
new file mode 100644
index 0000000..a91ba35
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/composer/installed.json
@@ -0,0 +1,709 @@
+[
+    {
+        "name": "psr/http-message",
+        "version": "1.0.1",
+        "version_normalized": "1.0.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/php-fig/http-message.git",
+            "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/php-fig/http-message/zipball/f6561bf28d520154e4b0ec72be95418abe6d9363",
+            "reference": "f6561bf28d520154e4b0ec72be95418abe6d9363",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.0"
+        },
+        "time": "2016-08-06 14:39:51",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.0.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Psr\\Http\\Message\\": "src/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "PHP-FIG",
+                "homepage": "http://www.php-fig.org/"
+            }
+        ],
+        "description": "Common interface for HTTP messages",
+        "homepage": "https://github.com/php-fig/http-message",
+        "keywords": [
+            "http",
+            "http-message",
+            "psr",
+            "psr-7",
+            "request",
+            "response"
+        ]
+    },
+    {
+        "name": "guzzlehttp/psr7",
+        "version": "1.4.2",
+        "version_normalized": "1.4.2.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/guzzle/psr7.git",
+            "reference": "f5b8a8512e2b58b0071a7280e39f14f72e05d87c"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/guzzle/psr7/zipball/f5b8a8512e2b58b0071a7280e39f14f72e05d87c",
+            "reference": "f5b8a8512e2b58b0071a7280e39f14f72e05d87c",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.4.0",
+            "psr/http-message": "~1.0"
+        },
+        "provide": {
+            "psr/http-message-implementation": "1.0"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "~4.0"
+        },
+        "time": "2017-03-20 17:10:46",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.4-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "GuzzleHttp\\Psr7\\": "src/"
+            },
+            "files": [
+                "src/functions_include.php"
+            ]
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Michael Dowling",
+                "email": "mtdowling@gmail.com",
+                "homepage": "https://github.com/mtdowling"
+            },
+            {
+                "name": "Tobias Schultze",
+                "homepage": "https://github.com/Tobion"
+            }
+        ],
+        "description": "PSR-7 message implementation that also provides common utility methods",
+        "keywords": [
+            "http",
+            "message",
+            "request",
+            "response",
+            "stream",
+            "uri",
+            "url"
+        ]
+    },
+    {
+        "name": "guzzlehttp/promises",
+        "version": "v1.3.1",
+        "version_normalized": "1.3.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/guzzle/promises.git",
+            "reference": "a59da6cf61d80060647ff4d3eb2c03a2bc694646"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/guzzle/promises/zipball/a59da6cf61d80060647ff4d3eb2c03a2bc694646",
+            "reference": "a59da6cf61d80060647ff4d3eb2c03a2bc694646",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.5.0"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "^4.0"
+        },
+        "time": "2016-12-20 10:07:11",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.4-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "GuzzleHttp\\Promise\\": "src/"
+            },
+            "files": [
+                "src/functions_include.php"
+            ]
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Michael Dowling",
+                "email": "mtdowling@gmail.com",
+                "homepage": "https://github.com/mtdowling"
+            }
+        ],
+        "description": "Guzzle promises library",
+        "keywords": [
+            "promise"
+        ]
+    },
+    {
+        "name": "guzzlehttp/guzzle",
+        "version": "6.3.0",
+        "version_normalized": "6.3.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/guzzle/guzzle.git",
+            "reference": "f4db5a78a5ea468d4831de7f0bf9d9415e348699"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/guzzle/guzzle/zipball/f4db5a78a5ea468d4831de7f0bf9d9415e348699",
+            "reference": "f4db5a78a5ea468d4831de7f0bf9d9415e348699",
+            "shasum": ""
+        },
+        "require": {
+            "guzzlehttp/promises": "^1.0",
+            "guzzlehttp/psr7": "^1.4",
+            "php": ">=5.5"
+        },
+        "require-dev": {
+            "ext-curl": "*",
+            "phpunit/phpunit": "^4.0 || ^5.0",
+            "psr/log": "^1.0"
+        },
+        "suggest": {
+            "psr/log": "Required for using the Log middleware"
+        },
+        "time": "2017-06-22 18:50:49",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "6.2-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "files": [
+                "src/functions_include.php"
+            ],
+            "psr-4": {
+                "GuzzleHttp\\": "src/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Michael Dowling",
+                "email": "mtdowling@gmail.com",
+                "homepage": "https://github.com/mtdowling"
+            }
+        ],
+        "description": "Guzzle is a PHP HTTP client library",
+        "homepage": "http://guzzlephp.org/",
+        "keywords": [
+            "client",
+            "curl",
+            "framework",
+            "http",
+            "http client",
+            "rest",
+            "web service"
+        ]
+    },
+    {
+        "name": "phpseclib/phpseclib",
+        "version": "2.0.10",
+        "version_normalized": "2.0.10.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/phpseclib/phpseclib.git",
+            "reference": "d305b780829ea4252ed9400b3f5937c2c99b51d4"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/phpseclib/phpseclib/zipball/d305b780829ea4252ed9400b3f5937c2c99b51d4",
+            "reference": "d305b780829ea4252ed9400b3f5937c2c99b51d4",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.3"
+        },
+        "require-dev": {
+            "phing/phing": "~2.7",
+            "phpunit/phpunit": "^4.8.35|^5.7|^6.0",
+            "sami/sami": "~2.0",
+            "squizlabs/php_codesniffer": "~2.0"
+        },
+        "suggest": {
+            "ext-gmp": "Install the GMP (GNU Multiple Precision) extension in order to speed up arbitrary precision integer arithmetic operations.",
+            "ext-libsodium": "SSH2/SFTP can make use of some algorithms provided by the libsodium-php extension.",
+            "ext-mcrypt": "Install the Mcrypt extension in order to speed up a few other cryptographic operations.",
+            "ext-openssl": "Install the OpenSSL extension in order to speed up a wide variety of cryptographic operations."
+        },
+        "time": "2018-02-19 04:29:13",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "files": [
+                "phpseclib/bootstrap.php"
+            ],
+            "psr-4": {
+                "phpseclib\\": "phpseclib/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Jim Wigginton",
+                "email": "terrafrost@php.net",
+                "role": "Lead Developer"
+            },
+            {
+                "name": "Patrick Monnerat",
+                "email": "pm@datasphere.ch",
+                "role": "Developer"
+            },
+            {
+                "name": "Andreas Fischer",
+                "email": "bantu@phpbb.com",
+                "role": "Developer"
+            },
+            {
+                "name": "Hans-Jürgen Petrich",
+                "email": "petrich@tronic-media.com",
+                "role": "Developer"
+            },
+            {
+                "name": "Graham Campbell",
+                "email": "graham@alt-three.com",
+                "role": "Developer"
+            }
+        ],
+        "description": "PHP Secure Communications Library - Pure-PHP implementations of RSA, AES, SSH2, SFTP, X.509 etc.",
+        "homepage": "http://phpseclib.sourceforge.net",
+        "keywords": [
+            "BigInteger",
+            "aes",
+            "asn.1",
+            "asn1",
+            "blowfish",
+            "crypto",
+            "cryptography",
+            "encryption",
+            "rsa",
+            "security",
+            "sftp",
+            "signature",
+            "signing",
+            "ssh",
+            "twofish",
+            "x.509",
+            "x509"
+        ]
+    },
+    {
+        "name": "psr/log",
+        "version": "1.0.2",
+        "version_normalized": "1.0.2.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/php-fig/log.git",
+            "reference": "4ebe3a8bf773a19edfe0a84b6585ba3d401b724d"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/php-fig/log/zipball/4ebe3a8bf773a19edfe0a84b6585ba3d401b724d",
+            "reference": "4ebe3a8bf773a19edfe0a84b6585ba3d401b724d",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.0"
+        },
+        "time": "2016-10-10 12:19:37",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.0.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Psr\\Log\\": "Psr/Log/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "PHP-FIG",
+                "homepage": "http://www.php-fig.org/"
+            }
+        ],
+        "description": "Common interface for logging libraries",
+        "homepage": "https://github.com/php-fig/log",
+        "keywords": [
+            "log",
+            "psr",
+            "psr-3"
+        ]
+    },
+    {
+        "name": "monolog/monolog",
+        "version": "1.23.0",
+        "version_normalized": "1.23.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/Seldaek/monolog.git",
+            "reference": "fd8c787753b3a2ad11bc60c063cff1358a32a3b4"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/Seldaek/monolog/zipball/fd8c787753b3a2ad11bc60c063cff1358a32a3b4",
+            "reference": "fd8c787753b3a2ad11bc60c063cff1358a32a3b4",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.0",
+            "psr/log": "~1.0"
+        },
+        "provide": {
+            "psr/log-implementation": "1.0.0"
+        },
+        "require-dev": {
+            "aws/aws-sdk-php": "^2.4.9 || ^3.0",
+            "doctrine/couchdb": "~1.0@dev",
+            "graylog2/gelf-php": "~1.0",
+            "jakub-onderka/php-parallel-lint": "0.9",
+            "php-amqplib/php-amqplib": "~2.4",
+            "php-console/php-console": "^3.1.3",
+            "phpunit/phpunit": "~4.5",
+            "phpunit/phpunit-mock-objects": "2.3.0",
+            "ruflin/elastica": ">=0.90 <3.0",
+            "sentry/sentry": "^0.13",
+            "swiftmailer/swiftmailer": "^5.3|^6.0"
+        },
+        "suggest": {
+            "aws/aws-sdk-php": "Allow sending log messages to AWS services like DynamoDB",
+            "doctrine/couchdb": "Allow sending log messages to a CouchDB server",
+            "ext-amqp": "Allow sending log messages to an AMQP server (1.0+ required)",
+            "ext-mongo": "Allow sending log messages to a MongoDB server",
+            "graylog2/gelf-php": "Allow sending log messages to a GrayLog2 server",
+            "mongodb/mongodb": "Allow sending log messages to a MongoDB server via PHP Driver",
+            "php-amqplib/php-amqplib": "Allow sending log messages to an AMQP server using php-amqplib",
+            "php-console/php-console": "Allow sending log messages to Google Chrome",
+            "rollbar/rollbar": "Allow sending log messages to Rollbar",
+            "ruflin/elastica": "Allow sending log messages to an Elastic Search server",
+            "sentry/sentry": "Allow sending log messages to a Sentry server"
+        },
+        "time": "2017-06-19 01:22:40",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "2.0.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Monolog\\": "src/Monolog"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "Jordi Boggiano",
+                "email": "j.boggiano@seld.be",
+                "homepage": "http://seld.be"
+            }
+        ],
+        "description": "Sends your logs to files, sockets, inboxes, databases and various web services",
+        "homepage": "http://github.com/Seldaek/monolog",
+        "keywords": [
+            "log",
+            "logging",
+            "psr-3"
+        ]
+    },
+    {
+        "name": "firebase/php-jwt",
+        "version": "v5.0.0",
+        "version_normalized": "5.0.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/firebase/php-jwt.git",
+            "reference": "9984a4d3a32ae7673d6971ea00bae9d0a1abba0e"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/firebase/php-jwt/zipball/9984a4d3a32ae7673d6971ea00bae9d0a1abba0e",
+            "reference": "9984a4d3a32ae7673d6971ea00bae9d0a1abba0e",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.0"
+        },
+        "require-dev": {
+            "phpunit/phpunit": " 4.8.35"
+        },
+        "time": "2017-06-27 22:17:23",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Firebase\\JWT\\": "src"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "BSD-3-Clause"
+        ],
+        "authors": [
+            {
+                "name": "Neuman Vong",
+                "email": "neuman+pear@twilio.com",
+                "role": "Developer"
+            },
+            {
+                "name": "Anant Narayanan",
+                "email": "anant@php.net",
+                "role": "Developer"
+            }
+        ],
+        "description": "A simple library to encode and decode JSON Web Tokens (JWT) in PHP. Should conform to the current spec.",
+        "homepage": "https://github.com/firebase/php-jwt"
+    },
+    {
+        "name": "google/apiclient-services",
+        "version": "v0.49",
+        "version_normalized": "0.49.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/google/google-api-php-client-services.git",
+            "reference": "7552d7d1bb92e933fc93088014c8c2555c0feab6"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/google/google-api-php-client-services/zipball/7552d7d1bb92e933fc93088014c8c2555c0feab6",
+            "reference": "7552d7d1bb92e933fc93088014c8c2555c0feab6",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.4"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "~4.8"
+        },
+        "time": "2018-03-04 00:24:05",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-0": {
+                "Google_Service_": "src"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "Apache-2.0"
+        ],
+        "description": "Client library for Google APIs",
+        "homepage": "http://developers.google.com/api-client-library/php",
+        "keywords": [
+            "google"
+        ]
+    },
+    {
+        "name": "psr/cache",
+        "version": "1.0.1",
+        "version_normalized": "1.0.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/php-fig/cache.git",
+            "reference": "d11b50ad223250cf17b86e38383413f5a6764bf8"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/php-fig/cache/zipball/d11b50ad223250cf17b86e38383413f5a6764bf8",
+            "reference": "d11b50ad223250cf17b86e38383413f5a6764bf8",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.3.0"
+        },
+        "time": "2016-08-06 20:24:11",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "1.0.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Psr\\Cache\\": "src/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "MIT"
+        ],
+        "authors": [
+            {
+                "name": "PHP-FIG",
+                "homepage": "http://www.php-fig.org/"
+            }
+        ],
+        "description": "Common interface for caching libraries",
+        "keywords": [
+            "cache",
+            "psr",
+            "psr-6"
+        ]
+    },
+    {
+        "name": "google/auth",
+        "version": "v1.2.1",
+        "version_normalized": "1.2.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/google/google-auth-library-php.git",
+            "reference": "da0062d279c9459350808a4fb63dbc08b90d6b90"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/google/google-auth-library-php/zipball/da0062d279c9459350808a4fb63dbc08b90d6b90",
+            "reference": "da0062d279c9459350808a4fb63dbc08b90d6b90",
+            "shasum": ""
+        },
+        "require": {
+            "firebase/php-jwt": "~2.0|~3.0|~4.0|~5.0",
+            "guzzlehttp/guzzle": "~5.3.1|~6.0",
+            "guzzlehttp/psr7": "~1.2",
+            "php": ">=5.4",
+            "psr/cache": "^1.0",
+            "psr/http-message": "^1.0"
+        },
+        "require-dev": {
+            "friendsofphp/php-cs-fixer": "^1.11",
+            "guzzlehttp/promises": "0.1.1|^1.3",
+            "phpunit/phpunit": "^4.8.36|^5.7",
+            "sebastian/comparator": ">=1.2.3"
+        },
+        "time": "2018-01-24 18:28:42",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Google\\Auth\\": "src"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "Apache-2.0"
+        ],
+        "description": "Google Auth Library for PHP",
+        "homepage": "http://github.com/google/google-auth-library-php",
+        "keywords": [
+            "Authentication",
+            "google",
+            "oauth2"
+        ]
+    },
+    {
+        "name": "google/apiclient",
+        "version": "v2.2.1",
+        "version_normalized": "2.2.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/google/google-api-php-client.git",
+            "reference": "b69b8ac4bf6501793c389d4e013a79d09c85c5f2"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/google/google-api-php-client/zipball/b69b8ac4bf6501793c389d4e013a79d09c85c5f2",
+            "reference": "b69b8ac4bf6501793c389d4e013a79d09c85c5f2",
+            "shasum": ""
+        },
+        "require": {
+            "firebase/php-jwt": "~2.0|~3.0|~4.0|~5.0",
+            "google/apiclient-services": "~0.13",
+            "google/auth": "^1.0",
+            "guzzlehttp/guzzle": "~5.3.1|~6.0",
+            "guzzlehttp/psr7": "^1.2",
+            "monolog/monolog": "^1.17",
+            "php": ">=5.4",
+            "phpseclib/phpseclib": "~0.3.10|~2.0"
+        },
+        "require-dev": {
+            "cache/filesystem-adapter": "^0.3.2",
+            "phpunit/phpunit": "~4",
+            "squizlabs/php_codesniffer": "~2.3",
+            "symfony/css-selector": "~2.1",
+            "symfony/dom-crawler": "~2.1"
+        },
+        "suggest": {
+            "cache/filesystem-adapter": "For caching certs and tokens (using Google_Client::setCache)"
+        },
+        "time": "2017-11-03 01:19:53",
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "2.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-0": {
+                "Google_": "src/"
+            },
+            "classmap": [
+                "src/Google/Service/"
+            ]
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "Apache-2.0"
+        ],
+        "description": "Client library for Google APIs",
+        "homepage": "http://developers.google.com/api-client-library/php",
+        "keywords": [
+            "google"
+        ]
+    }
+]
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/.gitignore b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/.gitignore
new file mode 100644
index 0000000..01150f6
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/.gitignore
@@ -0,0 +1,4 @@
+vendor
+composer.lock
+src/Google/Service/Compute/HTTPHealthCheck.php
+src/Google/Service/Compute/HTTPSHealthCheck.php
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/.travis.yml b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/.travis.yml
new file mode 100644
index 0000000..07ae303
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/.travis.yml
@@ -0,0 +1,15 @@
+language: php
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7.0
+  - 7.1
+  - 7.2
+
+install:
+  - composer install
+
+script:
+  - phpunit
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/CONTRIBUTING.md b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/CONTRIBUTING.md
new file mode 100644
index 0000000..e852a93
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/CONTRIBUTING.md
@@ -0,0 +1,22 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your code patches! However, before we can take them, we have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you own the intellectual property, then you'll need to sign an [individual CLA](http://code.google.com/legal/individual-cla-v1.0.html).
+  * If you work for a company that wants to allow you to contribute your work to this client library, then you'll need to sign a[corporate CLA](http://code.google.com/legal/corporate-cla-v1.0.html).
+
+Follow either of the two links above to access the appropriate CLA and instructions for how to sign and return it. Once we receive it, we'll add you to the official list of contributors and be able to accept your patches.
+
+## Submitting Patches
+
+1. Fork the PHP client library on GitHub
+1. Decide which code you want to submit. A submission should be a set of changes that addresses one issue in the issue tracker. Please file one change per issue, and address one issue per change. If you want to make a change that doesn't have a corresponding issue in the issue tracker, please file a new ticket!
+1. Ensure that your code adheres to standard PHP conventions, as used in the rest of the library.
+1. Ensure that there are unit tests for your code.
+1. Sign a Contributor License Agreement (see above).
+1. Submit a pull request with your patch on Github.
+
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/LICENSE
new file mode 100644
index 0000000..a148ba5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/LICENSE
@@ -0,0 +1,203 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction,
+and distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by
+the copyright owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all
+other entities that control, are controlled by, or are under common
+control with that entity. For the purposes of this definition,
+"control" means (i) the power, direct or indirect, to cause the
+direction or management of such entity, whether by contract or
+otherwise, or (ii) ownership of fifty percent (50%) or more of the
+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity
+exercising permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications,
+including but not limited to software source code, documentation
+source, and configuration files.
+
+"Object" form shall mean any form resulting from mechanical
+transformation or translation of a Source form, including but
+not limited to compiled object code, generated documentation,
+and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or
+Object form, made available under the License, as indicated by a
+copyright notice that is included in or attached to the work
+(an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object
+form, that is based on (or derived from) the Work and for which the
+editorial revisions, annotations, elaborations, or other modifications
+represent, as a whole, an original work of authorship. For the purposes
+of this License, Derivative Works shall not include works that remain
+separable from, or merely link (or bind by name) to the interfaces of,
+the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including
+the original version of the Work and any modifications or additions
+to that Work or Derivative Works thereof, that is intentionally
+submitted to Licensor for inclusion in the Work by the copyright owner
+or by an individual or Legal Entity authorized to submit on behalf of
+the copyright owner. For the purposes of this definition, "submitted"
+means any form of electronic, verbal, or written communication sent
+to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems,
+and issue tracking systems that are managed by, or on behalf of, the
+Licensor for the purpose of discussing and improving the Work, but
+excluding communication that is conspicuously marked or otherwise
+designated in writing by the copyright owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity
+on behalf of whom a Contribution has been received by Licensor and
+subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+this License, each Contributor hereby grants to You a perpetual,
+worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+copyright license to reproduce, prepare Derivative Works of,
+publicly display, publicly perform, sublicense, and distribute the
+Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
+this License, each Contributor hereby grants to You a perpetual,
+worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+(except as stated in this section) patent license to make, have made,
+use, offer to sell, sell, import, and otherwise transfer the Work,
+where such license applies only to those patent claims licensable
+by such Contributor that are necessarily infringed by their
+Contribution(s) alone or by combination of their Contribution(s)
+with the Work to which such Contribution(s) was submitted. If You
+institute patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that the Work
+or a Contribution incorporated within the Work constitutes direct
+or contributory patent infringement, then any patent licenses
+granted to You under this License for that Work shall terminate
+as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+Work or Derivative Works thereof in any medium, with or without
+modifications, and in Source or Object form, provided that You
+meet the following conditions:
+
+(a) You must give any other recipients of the Work or
+Derivative Works a copy of this License; and
+
+(b) You must cause any modified files to carry prominent notices
+stating that You changed the files; and
+
+(c) You must retain, in the Source form of any Derivative Works
+that You distribute, all copyright, patent, trademark, and
+attribution notices from the Source form of the Work,
+excluding those notices that do not pertain to any part of
+the Derivative Works; and
+
+(d) If the Work includes a "NOTICE" text file as part of its
+distribution, then any Derivative Works that You distribute must
+include a readable copy of the attribution notices contained
+within such NOTICE file, excluding those notices that do not
+pertain to any part of the Derivative Works, in at least one
+of the following places: within a NOTICE text file distributed
+as part of the Derivative Works; within the Source form or
+documentation, if provided along with the Derivative Works; or,
+within a display generated by the Derivative Works, if and
+wherever such third-party notices normally appear. The contents
+of the NOTICE file are for informational purposes only and
+do not modify the License. You may add Your own attribution
+notices within Derivative Works that You distribute, alongside
+or as an addendum to the NOTICE text from the Work, provided
+that such additional attribution notices cannot be construed
+as modifying the License.
+
+You may add Your own copyright statement to Your modifications and
+may provide additional or different license terms and conditions
+for use, reproduction, or distribution of Your modifications, or
+for any such Derivative Works as a whole, provided Your use,
+reproduction, and distribution of the Work otherwise complies with
+the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+any Contribution intentionally submitted for inclusion in the Work
+by You to the Licensor shall be under the terms and conditions of
+this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify
+the terms of any separate license agreement you may have executed
+with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+names, trademarks, service marks, or product names of the Licensor,
+except as required for reasonable and customary use in describing the
+origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+agreed to in writing, Licensor provides the Work (and each
+Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+implied, including, without limitation, any warranties or conditions
+of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+PARTICULAR PURPOSE. You are solely responsible for determining the
+appropriateness of using or redistributing the Work and assume any
+risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+whether in tort (including negligence), contract, or otherwise,
+unless required by applicable law (such as deliberate and grossly
+negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special,
+incidental, or consequential damages of any character arising as a
+result of this License or out of the use or inability to use the
+Work (including but not limited to damages for loss of goodwill,
+work stoppage, computer failure or malfunction, or any and all
+other commercial damages or losses), even if such Contributor
+has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+the Work or Derivative Works thereof, You may choose to offer,
+and charge a fee for, acceptance of support, warranty, indemnity,
+or other liability obligations and/or rights consistent with this
+License. However, in accepting such obligations, You may act only
+on Your own behalf and on Your sole responsibility, not on behalf
+of any other Contributor, and only if You agree to indemnify,
+defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason
+of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+To apply the Apache License to your work, attach the following
+boilerplate notice, with the fields enclosed by brackets "[]"
+replaced with your own identifying information. (Don't include
+the brackets!) The text should be enclosed in the appropriate
+comment syntax for the file format. We also recommend that a
+file or class name and description of purpose be included on the
+same "printed page" as the copyright notice for easier
+identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/README.md b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/README.md
new file mode 100644
index 0000000..0eb62fa
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/README.md
@@ -0,0 +1,30 @@
+Google PHP API Client Services
+==============================
+
+## Requirements
+
+[Google API PHP Client](https://github.com/google/google-api-php-client/releases)
+
+## Usage in v2 of Google API PHP Client
+
+This library will be automatically installed with the
+[Google API PHP Client](https://github.com/google/google-api-php-client/releases)
+via composer. Composer will automatically pull down a monthly tag
+from this repository.
+
+If you'd like to always be up-to-date with the latest release, rather than
+wait for monthly tagged releases, request the `dev-master` version in composer:
+
+```sh
+composer require google/apiclient-services:dev-master
+```
+
+## Usage in v1
+
+If you are currently using the [`v1-master`](https://github.com/google/google-api-php-client/tree/v1-master)
+branch of the client library, but want to use the latest API services, you can
+do so by requiring this library directly into your project via the same composer command:
+
+```sh
+composer require google/apiclient-services:dev-master
+```
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/composer.json b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/composer.json
new file mode 100644
index 0000000..7c319d0
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/composer.json
@@ -0,0 +1,19 @@
+{
+    "name": "google/apiclient-services",
+    "type": "library",
+    "description": "Client library for Google APIs",
+    "keywords": ["google"],
+    "homepage": "http://developers.google.com/api-client-library/php",
+    "license": "Apache-2.0",
+    "require": {
+        "php": ">=5.4"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "~4.8"
+    },
+    "autoload": {
+        "psr-0": {
+            "Google_Service_": "src"
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/phpunit.xml b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/phpunit.xml
new file mode 100644
index 0000000..d112e5a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/phpunit.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/3.7/phpunit.xsd"
+         colors="true"
+         bootstrap="vendor/autoload.php">
+    <testsuites>
+        <testsuite name="Google PHP Client Unit Services Test Suite">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail.php
new file mode 100644
index 0000000..b13b852
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail.php
@@ -0,0 +1,1136 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * Service definition for Gmail (v1).
+ *
+ * <p>
+ * Access Gmail mailboxes including sending user email.</p>
+ *
+ * <p>
+ * For more information about this service, see the API
+ * <a href="https://developers.google.com/gmail/api/" target="_blank">Documentation</a>
+ * </p>
+ *
+ * @author Google, Inc.
+ */
+class Google_Service_Gmail extends Google_Service
+{
+  /** Read, send, delete, and manage your email. */
+  const MAIL_GOOGLE_COM =
+      "https://mail.google.com/";
+  /** Manage drafts and send emails. */
+  const GMAIL_COMPOSE =
+      "https://www.googleapis.com/auth/gmail.compose";
+  /** Insert mail into your mailbox. */
+  const GMAIL_INSERT =
+      "https://www.googleapis.com/auth/gmail.insert";
+  /** Manage mailbox labels. */
+  const GMAIL_LABELS =
+      "https://www.googleapis.com/auth/gmail.labels";
+  /** View your email message metadata such as labels and headers, but not the email body. */
+  const GMAIL_METADATA =
+      "https://www.googleapis.com/auth/gmail.metadata";
+  /** View and modify but not delete your email. */
+  const GMAIL_MODIFY =
+      "https://www.googleapis.com/auth/gmail.modify";
+  /** View your email messages and settings. */
+  const GMAIL_READONLY =
+      "https://www.googleapis.com/auth/gmail.readonly";
+  /** Send email on your behalf. */
+  const GMAIL_SEND =
+      "https://www.googleapis.com/auth/gmail.send";
+  /** Manage your basic mail settings. */
+  const GMAIL_SETTINGS_BASIC =
+      "https://www.googleapis.com/auth/gmail.settings.basic";
+  /** Manage your sensitive mail settings, including who can manage your mail. */
+  const GMAIL_SETTINGS_SHARING =
+      "https://www.googleapis.com/auth/gmail.settings.sharing";
+
+  public $users;
+  public $users_drafts;
+  public $users_history;
+  public $users_labels;
+  public $users_messages;
+  public $users_messages_attachments;
+  public $users_settings;
+  public $users_settings_filters;
+  public $users_settings_forwardingAddresses;
+  public $users_settings_sendAs;
+  public $users_settings_sendAs_smimeInfo;
+  public $users_threads;
+  
+  /**
+   * Constructs the internal representation of the Gmail service.
+   *
+   * @param Google_Client $client
+   */
+  public function __construct(Google_Client $client)
+  {
+    parent::__construct($client);
+    $this->rootUrl = 'https://www.googleapis.com/';
+    $this->servicePath = 'gmail/v1/users/';
+    $this->version = 'v1';
+    $this->serviceName = 'gmail';
+
+    $this->users = new Google_Service_Gmail_Resource_Users(
+        $this,
+        $this->serviceName,
+        'users',
+        array(
+          'methods' => array(
+            'getProfile' => array(
+              'path' => '{userId}/profile',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'stop' => array(
+              'path' => '{userId}/stop',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'watch' => array(
+              'path' => '{userId}/watch',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_drafts = new Google_Service_Gmail_Resource_UsersDrafts(
+        $this,
+        $this->serviceName,
+        'drafts',
+        array(
+          'methods' => array(
+            'create' => array(
+              'path' => '{userId}/drafts',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'delete' => array(
+              'path' => '{userId}/drafts/{id}',
+              'httpMethod' => 'DELETE',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'get' => array(
+              'path' => '{userId}/drafts/{id}',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'format' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+              ),
+            ),'list' => array(
+              'path' => '{userId}/drafts',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'includeSpamTrash' => array(
+                  'location' => 'query',
+                  'type' => 'boolean',
+                ),
+                'maxResults' => array(
+                  'location' => 'query',
+                  'type' => 'integer',
+                ),
+                'pageToken' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+                'q' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+              ),
+            ),'send' => array(
+              'path' => '{userId}/drafts/send',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'update' => array(
+              'path' => '{userId}/drafts/{id}',
+              'httpMethod' => 'PUT',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_history = new Google_Service_Gmail_Resource_UsersHistory(
+        $this,
+        $this->serviceName,
+        'history',
+        array(
+          'methods' => array(
+            'list' => array(
+              'path' => '{userId}/history',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'historyTypes' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                  'repeated' => true,
+                ),
+                'labelId' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+                'maxResults' => array(
+                  'location' => 'query',
+                  'type' => 'integer',
+                ),
+                'pageToken' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+                'startHistoryId' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_labels = new Google_Service_Gmail_Resource_UsersLabels(
+        $this,
+        $this->serviceName,
+        'labels',
+        array(
+          'methods' => array(
+            'create' => array(
+              'path' => '{userId}/labels',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'delete' => array(
+              'path' => '{userId}/labels/{id}',
+              'httpMethod' => 'DELETE',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'get' => array(
+              'path' => '{userId}/labels/{id}',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'list' => array(
+              'path' => '{userId}/labels',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'patch' => array(
+              'path' => '{userId}/labels/{id}',
+              'httpMethod' => 'PATCH',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'update' => array(
+              'path' => '{userId}/labels/{id}',
+              'httpMethod' => 'PUT',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_messages = new Google_Service_Gmail_Resource_UsersMessages(
+        $this,
+        $this->serviceName,
+        'messages',
+        array(
+          'methods' => array(
+            'batchDelete' => array(
+              'path' => '{userId}/messages/batchDelete',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'batchModify' => array(
+              'path' => '{userId}/messages/batchModify',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'delete' => array(
+              'path' => '{userId}/messages/{id}',
+              'httpMethod' => 'DELETE',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'get' => array(
+              'path' => '{userId}/messages/{id}',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'format' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+                'metadataHeaders' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                  'repeated' => true,
+                ),
+              ),
+            ),'import' => array(
+              'path' => '{userId}/messages/import',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'deleted' => array(
+                  'location' => 'query',
+                  'type' => 'boolean',
+                ),
+                'internalDateSource' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+                'neverMarkSpam' => array(
+                  'location' => 'query',
+                  'type' => 'boolean',
+                ),
+                'processForCalendar' => array(
+                  'location' => 'query',
+                  'type' => 'boolean',
+                ),
+              ),
+            ),'insert' => array(
+              'path' => '{userId}/messages',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'deleted' => array(
+                  'location' => 'query',
+                  'type' => 'boolean',
+                ),
+                'internalDateSource' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+              ),
+            ),'list' => array(
+              'path' => '{userId}/messages',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'includeSpamTrash' => array(
+                  'location' => 'query',
+                  'type' => 'boolean',
+                ),
+                'labelIds' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                  'repeated' => true,
+                ),
+                'maxResults' => array(
+                  'location' => 'query',
+                  'type' => 'integer',
+                ),
+                'pageToken' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+                'q' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+              ),
+            ),'modify' => array(
+              'path' => '{userId}/messages/{id}/modify',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'send' => array(
+              'path' => '{userId}/messages/send',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'trash' => array(
+              'path' => '{userId}/messages/{id}/trash',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'untrash' => array(
+              'path' => '{userId}/messages/{id}/untrash',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_messages_attachments = new Google_Service_Gmail_Resource_UsersMessagesAttachments(
+        $this,
+        $this->serviceName,
+        'attachments',
+        array(
+          'methods' => array(
+            'get' => array(
+              'path' => '{userId}/messages/{messageId}/attachments/{id}',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'messageId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_settings = new Google_Service_Gmail_Resource_UsersSettings(
+        $this,
+        $this->serviceName,
+        'settings',
+        array(
+          'methods' => array(
+            'getAutoForwarding' => array(
+              'path' => '{userId}/settings/autoForwarding',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'getImap' => array(
+              'path' => '{userId}/settings/imap',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'getPop' => array(
+              'path' => '{userId}/settings/pop',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'getVacation' => array(
+              'path' => '{userId}/settings/vacation',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'updateAutoForwarding' => array(
+              'path' => '{userId}/settings/autoForwarding',
+              'httpMethod' => 'PUT',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'updateImap' => array(
+              'path' => '{userId}/settings/imap',
+              'httpMethod' => 'PUT',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'updatePop' => array(
+              'path' => '{userId}/settings/pop',
+              'httpMethod' => 'PUT',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'updateVacation' => array(
+              'path' => '{userId}/settings/vacation',
+              'httpMethod' => 'PUT',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_settings_filters = new Google_Service_Gmail_Resource_UsersSettingsFilters(
+        $this,
+        $this->serviceName,
+        'filters',
+        array(
+          'methods' => array(
+            'create' => array(
+              'path' => '{userId}/settings/filters',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'delete' => array(
+              'path' => '{userId}/settings/filters/{id}',
+              'httpMethod' => 'DELETE',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'get' => array(
+              'path' => '{userId}/settings/filters/{id}',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'list' => array(
+              'path' => '{userId}/settings/filters',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_settings_forwardingAddresses = new Google_Service_Gmail_Resource_UsersSettingsForwardingAddresses(
+        $this,
+        $this->serviceName,
+        'forwardingAddresses',
+        array(
+          'methods' => array(
+            'create' => array(
+              'path' => '{userId}/settings/forwardingAddresses',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'delete' => array(
+              'path' => '{userId}/settings/forwardingAddresses/{forwardingEmail}',
+              'httpMethod' => 'DELETE',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'forwardingEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'get' => array(
+              'path' => '{userId}/settings/forwardingAddresses/{forwardingEmail}',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'forwardingEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'list' => array(
+              'path' => '{userId}/settings/forwardingAddresses',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_settings_sendAs = new Google_Service_Gmail_Resource_UsersSettingsSendAs(
+        $this,
+        $this->serviceName,
+        'sendAs',
+        array(
+          'methods' => array(
+            'create' => array(
+              'path' => '{userId}/settings/sendAs',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'delete' => array(
+              'path' => '{userId}/settings/sendAs/{sendAsEmail}',
+              'httpMethod' => 'DELETE',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'sendAsEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'get' => array(
+              'path' => '{userId}/settings/sendAs/{sendAsEmail}',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'sendAsEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'list' => array(
+              'path' => '{userId}/settings/sendAs',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'patch' => array(
+              'path' => '{userId}/settings/sendAs/{sendAsEmail}',
+              'httpMethod' => 'PATCH',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'sendAsEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'update' => array(
+              'path' => '{userId}/settings/sendAs/{sendAsEmail}',
+              'httpMethod' => 'PUT',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'sendAsEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'verify' => array(
+              'path' => '{userId}/settings/sendAs/{sendAsEmail}/verify',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'sendAsEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_settings_sendAs_smimeInfo = new Google_Service_Gmail_Resource_UsersSettingsSendAsSmimeInfo(
+        $this,
+        $this->serviceName,
+        'smimeInfo',
+        array(
+          'methods' => array(
+            'delete' => array(
+              'path' => '{userId}/settings/sendAs/{sendAsEmail}/smimeInfo/{id}',
+              'httpMethod' => 'DELETE',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'sendAsEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'get' => array(
+              'path' => '{userId}/settings/sendAs/{sendAsEmail}/smimeInfo/{id}',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'sendAsEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'insert' => array(
+              'path' => '{userId}/settings/sendAs/{sendAsEmail}/smimeInfo',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'sendAsEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'list' => array(
+              'path' => '{userId}/settings/sendAs/{sendAsEmail}/smimeInfo',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'sendAsEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'setDefault' => array(
+              'path' => '{userId}/settings/sendAs/{sendAsEmail}/smimeInfo/{id}/setDefault',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'sendAsEmail' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+    $this->users_threads = new Google_Service_Gmail_Resource_UsersThreads(
+        $this,
+        $this->serviceName,
+        'threads',
+        array(
+          'methods' => array(
+            'delete' => array(
+              'path' => '{userId}/threads/{id}',
+              'httpMethod' => 'DELETE',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'get' => array(
+              'path' => '{userId}/threads/{id}',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'format' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+                'metadataHeaders' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                  'repeated' => true,
+                ),
+              ),
+            ),'list' => array(
+              'path' => '{userId}/threads',
+              'httpMethod' => 'GET',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'includeSpamTrash' => array(
+                  'location' => 'query',
+                  'type' => 'boolean',
+                ),
+                'labelIds' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                  'repeated' => true,
+                ),
+                'maxResults' => array(
+                  'location' => 'query',
+                  'type' => 'integer',
+                ),
+                'pageToken' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+                'q' => array(
+                  'location' => 'query',
+                  'type' => 'string',
+                ),
+              ),
+            ),'modify' => array(
+              'path' => '{userId}/threads/{id}/modify',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'trash' => array(
+              'path' => '{userId}/threads/{id}/trash',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),'untrash' => array(
+              'path' => '{userId}/threads/{id}/untrash',
+              'httpMethod' => 'POST',
+              'parameters' => array(
+                'userId' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+                'id' => array(
+                  'location' => 'path',
+                  'type' => 'string',
+                  'required' => true,
+                ),
+              ),
+            ),
+          )
+        )
+    );
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/AutoForwarding.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/AutoForwarding.php
new file mode 100644
index 0000000..86afef2
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/AutoForwarding.php
@@ -0,0 +1,48 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_AutoForwarding extends Google_Model
+{
+  public $disposition;
+  public $emailAddress;
+  public $enabled;
+
+  public function setDisposition($disposition)
+  {
+    $this->disposition = $disposition;
+  }
+  public function getDisposition()
+  {
+    return $this->disposition;
+  }
+  public function setEmailAddress($emailAddress)
+  {
+    $this->emailAddress = $emailAddress;
+  }
+  public function getEmailAddress()
+  {
+    return $this->emailAddress;
+  }
+  public function setEnabled($enabled)
+  {
+    $this->enabled = $enabled;
+  }
+  public function getEnabled()
+  {
+    return $this->enabled;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/BatchDeleteMessagesRequest.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/BatchDeleteMessagesRequest.php
new file mode 100644
index 0000000..136acf6
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/BatchDeleteMessagesRequest.php
@@ -0,0 +1,31 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_BatchDeleteMessagesRequest extends Google_Collection
+{
+  protected $collection_key = 'ids';
+  public $ids;
+
+  public function setIds($ids)
+  {
+    $this->ids = $ids;
+  }
+  public function getIds()
+  {
+    return $this->ids;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/BatchModifyMessagesRequest.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/BatchModifyMessagesRequest.php
new file mode 100644
index 0000000..911c221
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/BatchModifyMessagesRequest.php
@@ -0,0 +1,49 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_BatchModifyMessagesRequest extends Google_Collection
+{
+  protected $collection_key = 'removeLabelIds';
+  public $addLabelIds;
+  public $ids;
+  public $removeLabelIds;
+
+  public function setAddLabelIds($addLabelIds)
+  {
+    $this->addLabelIds = $addLabelIds;
+  }
+  public function getAddLabelIds()
+  {
+    return $this->addLabelIds;
+  }
+  public function setIds($ids)
+  {
+    $this->ids = $ids;
+  }
+  public function getIds()
+  {
+    return $this->ids;
+  }
+  public function setRemoveLabelIds($removeLabelIds)
+  {
+    $this->removeLabelIds = $removeLabelIds;
+  }
+  public function getRemoveLabelIds()
+  {
+    return $this->removeLabelIds;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Draft.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Draft.php
new file mode 100644
index 0000000..b2f9cc6
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Draft.php
@@ -0,0 +1,46 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_Draft extends Google_Model
+{
+  public $id;
+  protected $messageType = 'Google_Service_Gmail_Message';
+  protected $messageDataType = '';
+
+  public function setId($id)
+  {
+    $this->id = $id;
+  }
+  public function getId()
+  {
+    return $this->id;
+  }
+  /**
+   * @param Google_Service_Gmail_Message
+   */
+  public function setMessage(Google_Service_Gmail_Message $message)
+  {
+    $this->message = $message;
+  }
+  /**
+   * @return Google_Service_Gmail_Message
+   */
+  public function getMessage()
+  {
+    return $this->message;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Filter.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Filter.php
new file mode 100644
index 0000000..ee40b18
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Filter.php
@@ -0,0 +1,62 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_Filter extends Google_Model
+{
+  protected $actionType = 'Google_Service_Gmail_FilterAction';
+  protected $actionDataType = '';
+  protected $criteriaType = 'Google_Service_Gmail_FilterCriteria';
+  protected $criteriaDataType = '';
+  public $id;
+
+  /**
+   * @param Google_Service_Gmail_FilterAction
+   */
+  public function setAction(Google_Service_Gmail_FilterAction $action)
+  {
+    $this->action = $action;
+  }
+  /**
+   * @return Google_Service_Gmail_FilterAction
+   */
+  public function getAction()
+  {
+    return $this->action;
+  }
+  /**
+   * @param Google_Service_Gmail_FilterCriteria
+   */
+  public function setCriteria(Google_Service_Gmail_FilterCriteria $criteria)
+  {
+    $this->criteria = $criteria;
+  }
+  /**
+   * @return Google_Service_Gmail_FilterCriteria
+   */
+  public function getCriteria()
+  {
+    return $this->criteria;
+  }
+  public function setId($id)
+  {
+    $this->id = $id;
+  }
+  public function getId()
+  {
+    return $this->id;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/FilterAction.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/FilterAction.php
new file mode 100644
index 0000000..e11c467
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/FilterAction.php
@@ -0,0 +1,49 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_FilterAction extends Google_Collection
+{
+  protected $collection_key = 'removeLabelIds';
+  public $addLabelIds;
+  public $forward;
+  public $removeLabelIds;
+
+  public function setAddLabelIds($addLabelIds)
+  {
+    $this->addLabelIds = $addLabelIds;
+  }
+  public function getAddLabelIds()
+  {
+    return $this->addLabelIds;
+  }
+  public function setForward($forward)
+  {
+    $this->forward = $forward;
+  }
+  public function getForward()
+  {
+    return $this->forward;
+  }
+  public function setRemoveLabelIds($removeLabelIds)
+  {
+    $this->removeLabelIds = $removeLabelIds;
+  }
+  public function getRemoveLabelIds()
+  {
+    return $this->removeLabelIds;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/FilterCriteria.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/FilterCriteria.php
new file mode 100644
index 0000000..1b26c4d
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/FilterCriteria.php
@@ -0,0 +1,102 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_FilterCriteria extends Google_Model
+{
+  public $excludeChats;
+  public $from;
+  public $hasAttachment;
+  public $negatedQuery;
+  public $query;
+  public $size;
+  public $sizeComparison;
+  public $subject;
+  public $to;
+
+  public function setExcludeChats($excludeChats)
+  {
+    $this->excludeChats = $excludeChats;
+  }
+  public function getExcludeChats()
+  {
+    return $this->excludeChats;
+  }
+  public function setFrom($from)
+  {
+    $this->from = $from;
+  }
+  public function getFrom()
+  {
+    return $this->from;
+  }
+  public function setHasAttachment($hasAttachment)
+  {
+    $this->hasAttachment = $hasAttachment;
+  }
+  public function getHasAttachment()
+  {
+    return $this->hasAttachment;
+  }
+  public function setNegatedQuery($negatedQuery)
+  {
+    $this->negatedQuery = $negatedQuery;
+  }
+  public function getNegatedQuery()
+  {
+    return $this->negatedQuery;
+  }
+  public function setQuery($query)
+  {
+    $this->query = $query;
+  }
+  public function getQuery()
+  {
+    return $this->query;
+  }
+  public function setSize($size)
+  {
+    $this->size = $size;
+  }
+  public function getSize()
+  {
+    return $this->size;
+  }
+  public function setSizeComparison($sizeComparison)
+  {
+    $this->sizeComparison = $sizeComparison;
+  }
+  public function getSizeComparison()
+  {
+    return $this->sizeComparison;
+  }
+  public function setSubject($subject)
+  {
+    $this->subject = $subject;
+  }
+  public function getSubject()
+  {
+    return $this->subject;
+  }
+  public function setTo($to)
+  {
+    $this->to = $to;
+  }
+  public function getTo()
+  {
+    return $this->to;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ForwardingAddress.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ForwardingAddress.php
new file mode 100644
index 0000000..f2ea60e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ForwardingAddress.php
@@ -0,0 +1,39 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ForwardingAddress extends Google_Model
+{
+  public $forwardingEmail;
+  public $verificationStatus;
+
+  public function setForwardingEmail($forwardingEmail)
+  {
+    $this->forwardingEmail = $forwardingEmail;
+  }
+  public function getForwardingEmail()
+  {
+    return $this->forwardingEmail;
+  }
+  public function setVerificationStatus($verificationStatus)
+  {
+    $this->verificationStatus = $verificationStatus;
+  }
+  public function getVerificationStatus()
+  {
+    return $this->verificationStatus;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/History.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/History.php
new file mode 100644
index 0000000..35b65fa
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/History.php
@@ -0,0 +1,111 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_History extends Google_Collection
+{
+  protected $collection_key = 'messagesDeleted';
+  public $id;
+  protected $labelsAddedType = 'Google_Service_Gmail_HistoryLabelAdded';
+  protected $labelsAddedDataType = 'array';
+  protected $labelsRemovedType = 'Google_Service_Gmail_HistoryLabelRemoved';
+  protected $labelsRemovedDataType = 'array';
+  protected $messagesType = 'Google_Service_Gmail_Message';
+  protected $messagesDataType = 'array';
+  protected $messagesAddedType = 'Google_Service_Gmail_HistoryMessageAdded';
+  protected $messagesAddedDataType = 'array';
+  protected $messagesDeletedType = 'Google_Service_Gmail_HistoryMessageDeleted';
+  protected $messagesDeletedDataType = 'array';
+
+  public function setId($id)
+  {
+    $this->id = $id;
+  }
+  public function getId()
+  {
+    return $this->id;
+  }
+  /**
+   * @param Google_Service_Gmail_HistoryLabelAdded
+   */
+  public function setLabelsAdded($labelsAdded)
+  {
+    $this->labelsAdded = $labelsAdded;
+  }
+  /**
+   * @return Google_Service_Gmail_HistoryLabelAdded
+   */
+  public function getLabelsAdded()
+  {
+    return $this->labelsAdded;
+  }
+  /**
+   * @param Google_Service_Gmail_HistoryLabelRemoved
+   */
+  public function setLabelsRemoved($labelsRemoved)
+  {
+    $this->labelsRemoved = $labelsRemoved;
+  }
+  /**
+   * @return Google_Service_Gmail_HistoryLabelRemoved
+   */
+  public function getLabelsRemoved()
+  {
+    return $this->labelsRemoved;
+  }
+  /**
+   * @param Google_Service_Gmail_Message
+   */
+  public function setMessages($messages)
+  {
+    $this->messages = $messages;
+  }
+  /**
+   * @return Google_Service_Gmail_Message
+   */
+  public function getMessages()
+  {
+    return $this->messages;
+  }
+  /**
+   * @param Google_Service_Gmail_HistoryMessageAdded
+   */
+  public function setMessagesAdded($messagesAdded)
+  {
+    $this->messagesAdded = $messagesAdded;
+  }
+  /**
+   * @return Google_Service_Gmail_HistoryMessageAdded
+   */
+  public function getMessagesAdded()
+  {
+    return $this->messagesAdded;
+  }
+  /**
+   * @param Google_Service_Gmail_HistoryMessageDeleted
+   */
+  public function setMessagesDeleted($messagesDeleted)
+  {
+    $this->messagesDeleted = $messagesDeleted;
+  }
+  /**
+   * @return Google_Service_Gmail_HistoryMessageDeleted
+   */
+  public function getMessagesDeleted()
+  {
+    return $this->messagesDeleted;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryLabelAdded.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryLabelAdded.php
new file mode 100644
index 0000000..8292377
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryLabelAdded.php
@@ -0,0 +1,47 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_HistoryLabelAdded extends Google_Collection
+{
+  protected $collection_key = 'labelIds';
+  public $labelIds;
+  protected $messageType = 'Google_Service_Gmail_Message';
+  protected $messageDataType = '';
+
+  public function setLabelIds($labelIds)
+  {
+    $this->labelIds = $labelIds;
+  }
+  public function getLabelIds()
+  {
+    return $this->labelIds;
+  }
+  /**
+   * @param Google_Service_Gmail_Message
+   */
+  public function setMessage(Google_Service_Gmail_Message $message)
+  {
+    $this->message = $message;
+  }
+  /**
+   * @return Google_Service_Gmail_Message
+   */
+  public function getMessage()
+  {
+    return $this->message;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryLabelRemoved.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryLabelRemoved.php
new file mode 100644
index 0000000..873f6da
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryLabelRemoved.php
@@ -0,0 +1,47 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_HistoryLabelRemoved extends Google_Collection
+{
+  protected $collection_key = 'labelIds';
+  public $labelIds;
+  protected $messageType = 'Google_Service_Gmail_Message';
+  protected $messageDataType = '';
+
+  public function setLabelIds($labelIds)
+  {
+    $this->labelIds = $labelIds;
+  }
+  public function getLabelIds()
+  {
+    return $this->labelIds;
+  }
+  /**
+   * @param Google_Service_Gmail_Message
+   */
+  public function setMessage(Google_Service_Gmail_Message $message)
+  {
+    $this->message = $message;
+  }
+  /**
+   * @return Google_Service_Gmail_Message
+   */
+  public function getMessage()
+  {
+    return $this->message;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryMessageAdded.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryMessageAdded.php
new file mode 100644
index 0000000..5f86357
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryMessageAdded.php
@@ -0,0 +1,37 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_HistoryMessageAdded extends Google_Model
+{
+  protected $messageType = 'Google_Service_Gmail_Message';
+  protected $messageDataType = '';
+
+  /**
+   * @param Google_Service_Gmail_Message
+   */
+  public function setMessage(Google_Service_Gmail_Message $message)
+  {
+    $this->message = $message;
+  }
+  /**
+   * @return Google_Service_Gmail_Message
+   */
+  public function getMessage()
+  {
+    return $this->message;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryMessageDeleted.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryMessageDeleted.php
new file mode 100644
index 0000000..0afa797
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/HistoryMessageDeleted.php
@@ -0,0 +1,37 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_HistoryMessageDeleted extends Google_Model
+{
+  protected $messageType = 'Google_Service_Gmail_Message';
+  protected $messageDataType = '';
+
+  /**
+   * @param Google_Service_Gmail_Message
+   */
+  public function setMessage(Google_Service_Gmail_Message $message)
+  {
+    $this->message = $message;
+  }
+  /**
+   * @return Google_Service_Gmail_Message
+   */
+  public function getMessage()
+  {
+    return $this->message;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ImapSettings.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ImapSettings.php
new file mode 100644
index 0000000..df939b7
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ImapSettings.php
@@ -0,0 +1,57 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ImapSettings extends Google_Model
+{
+  public $autoExpunge;
+  public $enabled;
+  public $expungeBehavior;
+  public $maxFolderSize;
+
+  public function setAutoExpunge($autoExpunge)
+  {
+    $this->autoExpunge = $autoExpunge;
+  }
+  public function getAutoExpunge()
+  {
+    return $this->autoExpunge;
+  }
+  public function setEnabled($enabled)
+  {
+    $this->enabled = $enabled;
+  }
+  public function getEnabled()
+  {
+    return $this->enabled;
+  }
+  public function setExpungeBehavior($expungeBehavior)
+  {
+    $this->expungeBehavior = $expungeBehavior;
+  }
+  public function getExpungeBehavior()
+  {
+    return $this->expungeBehavior;
+  }
+  public function setMaxFolderSize($maxFolderSize)
+  {
+    $this->maxFolderSize = $maxFolderSize;
+  }
+  public function getMaxFolderSize()
+  {
+    return $this->maxFolderSize;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Label.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Label.php
new file mode 100644
index 0000000..f428a93
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Label.php
@@ -0,0 +1,118 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_Label extends Google_Model
+{
+  protected $colorType = 'Google_Service_Gmail_LabelColor';
+  protected $colorDataType = '';
+  public $id;
+  public $labelListVisibility;
+  public $messageListVisibility;
+  public $messagesTotal;
+  public $messagesUnread;
+  public $name;
+  public $threadsTotal;
+  public $threadsUnread;
+  public $type;
+
+  /**
+   * @param Google_Service_Gmail_LabelColor
+   */
+  public function setColor(Google_Service_Gmail_LabelColor $color)
+  {
+    $this->color = $color;
+  }
+  /**
+   * @return Google_Service_Gmail_LabelColor
+   */
+  public function getColor()
+  {
+    return $this->color;
+  }
+  public function setId($id)
+  {
+    $this->id = $id;
+  }
+  public function getId()
+  {
+    return $this->id;
+  }
+  public function setLabelListVisibility($labelListVisibility)
+  {
+    $this->labelListVisibility = $labelListVisibility;
+  }
+  public function getLabelListVisibility()
+  {
+    return $this->labelListVisibility;
+  }
+  public function setMessageListVisibility($messageListVisibility)
+  {
+    $this->messageListVisibility = $messageListVisibility;
+  }
+  public function getMessageListVisibility()
+  {
+    return $this->messageListVisibility;
+  }
+  public function setMessagesTotal($messagesTotal)
+  {
+    $this->messagesTotal = $messagesTotal;
+  }
+  public function getMessagesTotal()
+  {
+    return $this->messagesTotal;
+  }
+  public function setMessagesUnread($messagesUnread)
+  {
+    $this->messagesUnread = $messagesUnread;
+  }
+  public function getMessagesUnread()
+  {
+    return $this->messagesUnread;
+  }
+  public function setName($name)
+  {
+    $this->name = $name;
+  }
+  public function getName()
+  {
+    return $this->name;
+  }
+  public function setThreadsTotal($threadsTotal)
+  {
+    $this->threadsTotal = $threadsTotal;
+  }
+  public function getThreadsTotal()
+  {
+    return $this->threadsTotal;
+  }
+  public function setThreadsUnread($threadsUnread)
+  {
+    $this->threadsUnread = $threadsUnread;
+  }
+  public function getThreadsUnread()
+  {
+    return $this->threadsUnread;
+  }
+  public function setType($type)
+  {
+    $this->type = $type;
+  }
+  public function getType()
+  {
+    return $this->type;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/LabelColor.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/LabelColor.php
new file mode 100644
index 0000000..10c3187
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/LabelColor.php
@@ -0,0 +1,39 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_LabelColor extends Google_Model
+{
+  public $backgroundColor;
+  public $textColor;
+
+  public function setBackgroundColor($backgroundColor)
+  {
+    $this->backgroundColor = $backgroundColor;
+  }
+  public function getBackgroundColor()
+  {
+    return $this->backgroundColor;
+  }
+  public function setTextColor($textColor)
+  {
+    $this->textColor = $textColor;
+  }
+  public function getTextColor()
+  {
+    return $this->textColor;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListDraftsResponse.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListDraftsResponse.php
new file mode 100644
index 0000000..dbfce46
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListDraftsResponse.php
@@ -0,0 +1,56 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ListDraftsResponse extends Google_Collection
+{
+  protected $collection_key = 'drafts';
+  protected $draftsType = 'Google_Service_Gmail_Draft';
+  protected $draftsDataType = 'array';
+  public $nextPageToken;
+  public $resultSizeEstimate;
+
+  /**
+   * @param Google_Service_Gmail_Draft
+   */
+  public function setDrafts($drafts)
+  {
+    $this->drafts = $drafts;
+  }
+  /**
+   * @return Google_Service_Gmail_Draft
+   */
+  public function getDrafts()
+  {
+    return $this->drafts;
+  }
+  public function setNextPageToken($nextPageToken)
+  {
+    $this->nextPageToken = $nextPageToken;
+  }
+  public function getNextPageToken()
+  {
+    return $this->nextPageToken;
+  }
+  public function setResultSizeEstimate($resultSizeEstimate)
+  {
+    $this->resultSizeEstimate = $resultSizeEstimate;
+  }
+  public function getResultSizeEstimate()
+  {
+    return $this->resultSizeEstimate;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListFiltersResponse.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListFiltersResponse.php
new file mode 100644
index 0000000..589d782
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListFiltersResponse.php
@@ -0,0 +1,38 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ListFiltersResponse extends Google_Collection
+{
+  protected $collection_key = 'filter';
+  protected $filterType = 'Google_Service_Gmail_Filter';
+  protected $filterDataType = 'array';
+
+  /**
+   * @param Google_Service_Gmail_Filter
+   */
+  public function setFilter($filter)
+  {
+    $this->filter = $filter;
+  }
+  /**
+   * @return Google_Service_Gmail_Filter
+   */
+  public function getFilter()
+  {
+    return $this->filter;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListForwardingAddressesResponse.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListForwardingAddressesResponse.php
new file mode 100644
index 0000000..477f861
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListForwardingAddressesResponse.php
@@ -0,0 +1,38 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ListForwardingAddressesResponse extends Google_Collection
+{
+  protected $collection_key = 'forwardingAddresses';
+  protected $forwardingAddressesType = 'Google_Service_Gmail_ForwardingAddress';
+  protected $forwardingAddressesDataType = 'array';
+
+  /**
+   * @param Google_Service_Gmail_ForwardingAddress
+   */
+  public function setForwardingAddresses($forwardingAddresses)
+  {
+    $this->forwardingAddresses = $forwardingAddresses;
+  }
+  /**
+   * @return Google_Service_Gmail_ForwardingAddress
+   */
+  public function getForwardingAddresses()
+  {
+    return $this->forwardingAddresses;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListHistoryResponse.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListHistoryResponse.php
new file mode 100644
index 0000000..a0d7d67
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListHistoryResponse.php
@@ -0,0 +1,56 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ListHistoryResponse extends Google_Collection
+{
+  protected $collection_key = 'history';
+  protected $historyType = 'Google_Service_Gmail_History';
+  protected $historyDataType = 'array';
+  public $historyId;
+  public $nextPageToken;
+
+  /**
+   * @param Google_Service_Gmail_History
+   */
+  public function setHistory($history)
+  {
+    $this->history = $history;
+  }
+  /**
+   * @return Google_Service_Gmail_History
+   */
+  public function getHistory()
+  {
+    return $this->history;
+  }
+  public function setHistoryId($historyId)
+  {
+    $this->historyId = $historyId;
+  }
+  public function getHistoryId()
+  {
+    return $this->historyId;
+  }
+  public function setNextPageToken($nextPageToken)
+  {
+    $this->nextPageToken = $nextPageToken;
+  }
+  public function getNextPageToken()
+  {
+    return $this->nextPageToken;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListLabelsResponse.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListLabelsResponse.php
new file mode 100644
index 0000000..9075e9c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListLabelsResponse.php
@@ -0,0 +1,38 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ListLabelsResponse extends Google_Collection
+{
+  protected $collection_key = 'labels';
+  protected $labelsType = 'Google_Service_Gmail_Label';
+  protected $labelsDataType = 'array';
+
+  /**
+   * @param Google_Service_Gmail_Label
+   */
+  public function setLabels($labels)
+  {
+    $this->labels = $labels;
+  }
+  /**
+   * @return Google_Service_Gmail_Label
+   */
+  public function getLabels()
+  {
+    return $this->labels;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListMessagesResponse.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListMessagesResponse.php
new file mode 100644
index 0000000..e246fe1
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListMessagesResponse.php
@@ -0,0 +1,56 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ListMessagesResponse extends Google_Collection
+{
+  protected $collection_key = 'messages';
+  protected $messagesType = 'Google_Service_Gmail_Message';
+  protected $messagesDataType = 'array';
+  public $nextPageToken;
+  public $resultSizeEstimate;
+
+  /**
+   * @param Google_Service_Gmail_Message
+   */
+  public function setMessages($messages)
+  {
+    $this->messages = $messages;
+  }
+  /**
+   * @return Google_Service_Gmail_Message
+   */
+  public function getMessages()
+  {
+    return $this->messages;
+  }
+  public function setNextPageToken($nextPageToken)
+  {
+    $this->nextPageToken = $nextPageToken;
+  }
+  public function getNextPageToken()
+  {
+    return $this->nextPageToken;
+  }
+  public function setResultSizeEstimate($resultSizeEstimate)
+  {
+    $this->resultSizeEstimate = $resultSizeEstimate;
+  }
+  public function getResultSizeEstimate()
+  {
+    return $this->resultSizeEstimate;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListSendAsResponse.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListSendAsResponse.php
new file mode 100644
index 0000000..6048c42
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListSendAsResponse.php
@@ -0,0 +1,38 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ListSendAsResponse extends Google_Collection
+{
+  protected $collection_key = 'sendAs';
+  protected $sendAsType = 'Google_Service_Gmail_SendAs';
+  protected $sendAsDataType = 'array';
+
+  /**
+   * @param Google_Service_Gmail_SendAs
+   */
+  public function setSendAs($sendAs)
+  {
+    $this->sendAs = $sendAs;
+  }
+  /**
+   * @return Google_Service_Gmail_SendAs
+   */
+  public function getSendAs()
+  {
+    return $this->sendAs;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListSmimeInfoResponse.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListSmimeInfoResponse.php
new file mode 100644
index 0000000..277907a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListSmimeInfoResponse.php
@@ -0,0 +1,38 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ListSmimeInfoResponse extends Google_Collection
+{
+  protected $collection_key = 'smimeInfo';
+  protected $smimeInfoType = 'Google_Service_Gmail_SmimeInfo';
+  protected $smimeInfoDataType = 'array';
+
+  /**
+   * @param Google_Service_Gmail_SmimeInfo
+   */
+  public function setSmimeInfo($smimeInfo)
+  {
+    $this->smimeInfo = $smimeInfo;
+  }
+  /**
+   * @return Google_Service_Gmail_SmimeInfo
+   */
+  public function getSmimeInfo()
+  {
+    return $this->smimeInfo;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListThreadsResponse.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListThreadsResponse.php
new file mode 100644
index 0000000..347a39c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ListThreadsResponse.php
@@ -0,0 +1,56 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ListThreadsResponse extends Google_Collection
+{
+  protected $collection_key = 'threads';
+  public $nextPageToken;
+  public $resultSizeEstimate;
+  protected $threadsType = 'Google_Service_Gmail_Thread';
+  protected $threadsDataType = 'array';
+
+  public function setNextPageToken($nextPageToken)
+  {
+    $this->nextPageToken = $nextPageToken;
+  }
+  public function getNextPageToken()
+  {
+    return $this->nextPageToken;
+  }
+  public function setResultSizeEstimate($resultSizeEstimate)
+  {
+    $this->resultSizeEstimate = $resultSizeEstimate;
+  }
+  public function getResultSizeEstimate()
+  {
+    return $this->resultSizeEstimate;
+  }
+  /**
+   * @param Google_Service_Gmail_Thread
+   */
+  public function setThreads($threads)
+  {
+    $this->threads = $threads;
+  }
+  /**
+   * @return Google_Service_Gmail_Thread
+   */
+  public function getThreads()
+  {
+    return $this->threads;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Message.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Message.php
new file mode 100644
index 0000000..b5d0bc8
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Message.php
@@ -0,0 +1,110 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_Message extends Google_Collection
+{
+  protected $collection_key = 'labelIds';
+  public $historyId;
+  public $id;
+  public $internalDate;
+  public $labelIds;
+  protected $payloadType = 'Google_Service_Gmail_MessagePart';
+  protected $payloadDataType = '';
+  public $raw;
+  public $sizeEstimate;
+  public $snippet;
+  public $threadId;
+
+  public function setHistoryId($historyId)
+  {
+    $this->historyId = $historyId;
+  }
+  public function getHistoryId()
+  {
+    return $this->historyId;
+  }
+  public function setId($id)
+  {
+    $this->id = $id;
+  }
+  public function getId()
+  {
+    return $this->id;
+  }
+  public function setInternalDate($internalDate)
+  {
+    $this->internalDate = $internalDate;
+  }
+  public function getInternalDate()
+  {
+    return $this->internalDate;
+  }
+  public function setLabelIds($labelIds)
+  {
+    $this->labelIds = $labelIds;
+  }
+  public function getLabelIds()
+  {
+    return $this->labelIds;
+  }
+  /**
+   * @param Google_Service_Gmail_MessagePart
+   */
+  public function setPayload(Google_Service_Gmail_MessagePart $payload)
+  {
+    $this->payload = $payload;
+  }
+  /**
+   * @return Google_Service_Gmail_MessagePart
+   */
+  public function getPayload()
+  {
+    return $this->payload;
+  }
+  public function setRaw($raw)
+  {
+    $this->raw = $raw;
+  }
+  public function getRaw()
+  {
+    return $this->raw;
+  }
+  public function setSizeEstimate($sizeEstimate)
+  {
+    $this->sizeEstimate = $sizeEstimate;
+  }
+  public function getSizeEstimate()
+  {
+    return $this->sizeEstimate;
+  }
+  public function setSnippet($snippet)
+  {
+    $this->snippet = $snippet;
+  }
+  public function getSnippet()
+  {
+    return $this->snippet;
+  }
+  public function setThreadId($threadId)
+  {
+    $this->threadId = $threadId;
+  }
+  public function getThreadId()
+  {
+    return $this->threadId;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/MessagePart.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/MessagePart.php
new file mode 100644
index 0000000..e8270e1
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/MessagePart.php
@@ -0,0 +1,97 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_MessagePart extends Google_Collection
+{
+  protected $collection_key = 'parts';
+  protected $bodyType = 'Google_Service_Gmail_MessagePartBody';
+  protected $bodyDataType = '';
+  public $filename;
+  protected $headersType = 'Google_Service_Gmail_MessagePartHeader';
+  protected $headersDataType = 'array';
+  public $mimeType;
+  public $partId;
+  protected $partsType = 'Google_Service_Gmail_MessagePart';
+  protected $partsDataType = 'array';
+
+  /**
+   * @param Google_Service_Gmail_MessagePartBody
+   */
+  public function setBody(Google_Service_Gmail_MessagePartBody $body)
+  {
+    $this->body = $body;
+  }
+  /**
+   * @return Google_Service_Gmail_MessagePartBody
+   */
+  public function getBody()
+  {
+    return $this->body;
+  }
+  public function setFilename($filename)
+  {
+    $this->filename = $filename;
+  }
+  public function getFilename()
+  {
+    return $this->filename;
+  }
+  /**
+   * @param Google_Service_Gmail_MessagePartHeader
+   */
+  public function setHeaders($headers)
+  {
+    $this->headers = $headers;
+  }
+  /**
+   * @return Google_Service_Gmail_MessagePartHeader
+   */
+  public function getHeaders()
+  {
+    return $this->headers;
+  }
+  public function setMimeType($mimeType)
+  {
+    $this->mimeType = $mimeType;
+  }
+  public function getMimeType()
+  {
+    return $this->mimeType;
+  }
+  public function setPartId($partId)
+  {
+    $this->partId = $partId;
+  }
+  public function getPartId()
+  {
+    return $this->partId;
+  }
+  /**
+   * @param Google_Service_Gmail_MessagePart
+   */
+  public function setParts($parts)
+  {
+    $this->parts = $parts;
+  }
+  /**
+   * @return Google_Service_Gmail_MessagePart
+   */
+  public function getParts()
+  {
+    return $this->parts;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/MessagePartBody.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/MessagePartBody.php
new file mode 100644
index 0000000..89323ef
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/MessagePartBody.php
@@ -0,0 +1,48 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_MessagePartBody extends Google_Model
+{
+  public $attachmentId;
+  public $data;
+  public $size;
+
+  public function setAttachmentId($attachmentId)
+  {
+    $this->attachmentId = $attachmentId;
+  }
+  public function getAttachmentId()
+  {
+    return $this->attachmentId;
+  }
+  public function setData($data)
+  {
+    $this->data = $data;
+  }
+  public function getData()
+  {
+    return $this->data;
+  }
+  public function setSize($size)
+  {
+    $this->size = $size;
+  }
+  public function getSize()
+  {
+    return $this->size;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/MessagePartHeader.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/MessagePartHeader.php
new file mode 100644
index 0000000..8789faf
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/MessagePartHeader.php
@@ -0,0 +1,39 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_MessagePartHeader extends Google_Model
+{
+  public $name;
+  public $value;
+
+  public function setName($name)
+  {
+    $this->name = $name;
+  }
+  public function getName()
+  {
+    return $this->name;
+  }
+  public function setValue($value)
+  {
+    $this->value = $value;
+  }
+  public function getValue()
+  {
+    return $this->value;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ModifyMessageRequest.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ModifyMessageRequest.php
new file mode 100644
index 0000000..7f37a47
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ModifyMessageRequest.php
@@ -0,0 +1,40 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ModifyMessageRequest extends Google_Collection
+{
+  protected $collection_key = 'removeLabelIds';
+  public $addLabelIds;
+  public $removeLabelIds;
+
+  public function setAddLabelIds($addLabelIds)
+  {
+    $this->addLabelIds = $addLabelIds;
+  }
+  public function getAddLabelIds()
+  {
+    return $this->addLabelIds;
+  }
+  public function setRemoveLabelIds($removeLabelIds)
+  {
+    $this->removeLabelIds = $removeLabelIds;
+  }
+  public function getRemoveLabelIds()
+  {
+    return $this->removeLabelIds;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ModifyThreadRequest.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ModifyThreadRequest.php
new file mode 100644
index 0000000..a8fec01
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/ModifyThreadRequest.php
@@ -0,0 +1,40 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_ModifyThreadRequest extends Google_Collection
+{
+  protected $collection_key = 'removeLabelIds';
+  public $addLabelIds;
+  public $removeLabelIds;
+
+  public function setAddLabelIds($addLabelIds)
+  {
+    $this->addLabelIds = $addLabelIds;
+  }
+  public function getAddLabelIds()
+  {
+    return $this->addLabelIds;
+  }
+  public function setRemoveLabelIds($removeLabelIds)
+  {
+    $this->removeLabelIds = $removeLabelIds;
+  }
+  public function getRemoveLabelIds()
+  {
+    return $this->removeLabelIds;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/PopSettings.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/PopSettings.php
new file mode 100644
index 0000000..6069dc8
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/PopSettings.php
@@ -0,0 +1,39 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_PopSettings extends Google_Model
+{
+  public $accessWindow;
+  public $disposition;
+
+  public function setAccessWindow($accessWindow)
+  {
+    $this->accessWindow = $accessWindow;
+  }
+  public function getAccessWindow()
+  {
+    return $this->accessWindow;
+  }
+  public function setDisposition($disposition)
+  {
+    $this->disposition = $disposition;
+  }
+  public function getDisposition()
+  {
+    return $this->disposition;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Profile.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Profile.php
new file mode 100644
index 0000000..7dda18c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Profile.php
@@ -0,0 +1,57 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_Profile extends Google_Model
+{
+  public $emailAddress;
+  public $historyId;
+  public $messagesTotal;
+  public $threadsTotal;
+
+  public function setEmailAddress($emailAddress)
+  {
+    $this->emailAddress = $emailAddress;
+  }
+  public function getEmailAddress()
+  {
+    return $this->emailAddress;
+  }
+  public function setHistoryId($historyId)
+  {
+    $this->historyId = $historyId;
+  }
+  public function getHistoryId()
+  {
+    return $this->historyId;
+  }
+  public function setMessagesTotal($messagesTotal)
+  {
+    $this->messagesTotal = $messagesTotal;
+  }
+  public function getMessagesTotal()
+  {
+    return $this->messagesTotal;
+  }
+  public function setThreadsTotal($threadsTotal)
+  {
+    $this->threadsTotal = $threadsTotal;
+  }
+  public function getThreadsTotal()
+  {
+    return $this->threadsTotal;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/Users.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/Users.php
new file mode 100644
index 0000000..947fc56
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/Users.php
@@ -0,0 +1,71 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "users" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $users = $gmailService->users;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_Users extends Google_Service_Resource
+{
+  /**
+   * Gets the current user's Gmail profile. (users.getProfile)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Profile
+   */
+  public function getProfile($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('getProfile', array($params), "Google_Service_Gmail_Profile");
+  }
+  /**
+   * Stop receiving push notifications for the given user mailbox. (users.stop)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   */
+  public function stop($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('stop', array($params));
+  }
+  /**
+   * Set up or update a push notification watch on the given user mailbox.
+   * (users.watch)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_WatchRequest $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_WatchResponse
+   */
+  public function watch($userId, Google_Service_Gmail_WatchRequest $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('watch', array($params), "Google_Service_Gmail_WatchResponse");
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersDrafts.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersDrafts.php
new file mode 100644
index 0000000..d0ec543
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersDrafts.php
@@ -0,0 +1,130 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "drafts" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $drafts = $gmailService->drafts;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersDrafts extends Google_Service_Resource
+{
+  /**
+   * Creates a new draft with the DRAFT label. (drafts.create)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_Draft $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Draft
+   */
+  public function create($userId, Google_Service_Gmail_Draft $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('create', array($params), "Google_Service_Gmail_Draft");
+  }
+  /**
+   * Immediately and permanently deletes the specified draft. Does not simply
+   * trash it. (drafts.delete)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the draft to delete.
+   * @param array $optParams Optional parameters.
+   */
+  public function delete($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('delete', array($params));
+  }
+  /**
+   * Gets the specified draft. (drafts.get)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the draft to retrieve.
+   * @param array $optParams Optional parameters.
+   *
+   * @opt_param string format The format to return the draft in.
+   * @return Google_Service_Gmail_Draft
+   */
+  public function get($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('get', array($params), "Google_Service_Gmail_Draft");
+  }
+  /**
+   * Lists the drafts in the user's mailbox. (drafts.listUsersDrafts)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   *
+   * @opt_param bool includeSpamTrash Include drafts from SPAM and TRASH in the
+   * results.
+   * @opt_param string maxResults Maximum number of drafts to return.
+   * @opt_param string pageToken Page token to retrieve a specific page of results
+   * in the list.
+   * @opt_param string q Only return draft messages matching the specified query.
+   * Supports the same query format as the Gmail search box. For example,
+   * "from:someuser@example.com rfc822msgid: is:unread".
+   * @return Google_Service_Gmail_ListDraftsResponse
+   */
+  public function listUsersDrafts($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('list', array($params), "Google_Service_Gmail_ListDraftsResponse");
+  }
+  /**
+   * Sends the specified, existing draft to the recipients in the To, Cc, and Bcc
+   * headers. (drafts.send)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_Draft $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Message
+   */
+  public function send($userId, Google_Service_Gmail_Draft $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('send', array($params), "Google_Service_Gmail_Message");
+  }
+  /**
+   * Replaces a draft's content. (drafts.update)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the draft to update.
+   * @param Google_Service_Gmail_Draft $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Draft
+   */
+  public function update($userId, $id, Google_Service_Gmail_Draft $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('update', array($params), "Google_Service_Gmail_Draft");
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersHistory.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersHistory.php
new file mode 100644
index 0000000..128bd17
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersHistory.php
@@ -0,0 +1,61 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "history" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $history = $gmailService->history;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersHistory extends Google_Service_Resource
+{
+  /**
+   * Lists the history of all changes to the given mailbox. History results are
+   * returned in chronological order (increasing historyId).
+   * (history.listUsersHistory)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   *
+   * @opt_param string historyTypes History types to be returned by the function
+   * @opt_param string labelId Only return messages with a label matching the ID.
+   * @opt_param string maxResults The maximum number of history records to return.
+   * @opt_param string pageToken Page token to retrieve a specific page of results
+   * in the list.
+   * @opt_param string startHistoryId Required. Returns history records after the
+   * specified startHistoryId. The supplied startHistoryId should be obtained from
+   * the historyId of a message, thread, or previous list response. History IDs
+   * increase chronologically but are not contiguous with random gaps in between
+   * valid IDs. Supplying an invalid or out of date startHistoryId typically
+   * returns an HTTP 404 error code. A historyId is typically valid for at least a
+   * week, but in some rare circumstances may be valid for only a few hours. If
+   * you receive an HTTP 404 error response, your application should perform a
+   * full sync. If you receive no nextPageToken in the response, there are no
+   * updates to retrieve and you can store the returned historyId for a future
+   * request.
+   * @return Google_Service_Gmail_ListHistoryResponse
+   */
+  public function listUsersHistory($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('list', array($params), "Google_Service_Gmail_ListHistoryResponse");
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersLabels.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersLabels.php
new file mode 100644
index 0000000..88b33ce
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersLabels.php
@@ -0,0 +1,120 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "labels" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $labels = $gmailService->labels;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersLabels extends Google_Service_Resource
+{
+  /**
+   * Creates a new label. (labels.create)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_Label $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Label
+   */
+  public function create($userId, Google_Service_Gmail_Label $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('create', array($params), "Google_Service_Gmail_Label");
+  }
+  /**
+   * Immediately and permanently deletes the specified label and removes it from
+   * any messages and threads that it is applied to. (labels.delete)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the label to delete.
+   * @param array $optParams Optional parameters.
+   */
+  public function delete($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('delete', array($params));
+  }
+  /**
+   * Gets the specified label. (labels.get)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the label to retrieve.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Label
+   */
+  public function get($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('get', array($params), "Google_Service_Gmail_Label");
+  }
+  /**
+   * Lists all labels in the user's mailbox. (labels.listUsersLabels)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_ListLabelsResponse
+   */
+  public function listUsersLabels($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('list', array($params), "Google_Service_Gmail_ListLabelsResponse");
+  }
+  /**
+   * Updates the specified label. This method supports patch semantics.
+   * (labels.patch)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the label to update.
+   * @param Google_Service_Gmail_Label $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Label
+   */
+  public function patch($userId, $id, Google_Service_Gmail_Label $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('patch', array($params), "Google_Service_Gmail_Label");
+  }
+  /**
+   * Updates the specified label. (labels.update)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the label to update.
+   * @param Google_Service_Gmail_Label $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Label
+   */
+  public function update($userId, $id, Google_Service_Gmail_Label $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('update', array($params), "Google_Service_Gmail_Label");
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersMessages.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersMessages.php
new file mode 100644
index 0000000..67c737b
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersMessages.php
@@ -0,0 +1,229 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "messages" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $messages = $gmailService->messages;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersMessages extends Google_Service_Resource
+{
+  /**
+   * Deletes many messages by message ID. Provides no guarantees that messages
+   * were not already deleted or even existed at all. (messages.batchDelete)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_BatchDeleteMessagesRequest $postBody
+   * @param array $optParams Optional parameters.
+   */
+  public function batchDelete($userId, Google_Service_Gmail_BatchDeleteMessagesRequest $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('batchDelete', array($params));
+  }
+  /**
+   * Modifies the labels on the specified messages. (messages.batchModify)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_BatchModifyMessagesRequest $postBody
+   * @param array $optParams Optional parameters.
+   */
+  public function batchModify($userId, Google_Service_Gmail_BatchModifyMessagesRequest $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('batchModify', array($params));
+  }
+  /**
+   * Immediately and permanently deletes the specified message. This operation
+   * cannot be undone. Prefer messages.trash instead. (messages.delete)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the message to delete.
+   * @param array $optParams Optional parameters.
+   */
+  public function delete($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('delete', array($params));
+  }
+  /**
+   * Gets the specified message. (messages.get)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the message to retrieve.
+   * @param array $optParams Optional parameters.
+   *
+   * @opt_param string format The format to return the message in.
+   * @opt_param string metadataHeaders When given and format is METADATA, only
+   * include headers specified.
+   * @return Google_Service_Gmail_Message
+   */
+  public function get($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('get', array($params), "Google_Service_Gmail_Message");
+  }
+  /**
+   * Imports a message into only this user's mailbox, with standard email delivery
+   * scanning and classification similar to receiving via SMTP. Does not send a
+   * message. (messages.import)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_Message $postBody
+   * @param array $optParams Optional parameters.
+   *
+   * @opt_param bool deleted Mark the email as permanently deleted (not TRASH) and
+   * only visible in Google Vault to a Vault administrator. Only used for G Suite
+   * accounts.
+   * @opt_param string internalDateSource Source for Gmail's internal date of the
+   * message.
+   * @opt_param bool neverMarkSpam Ignore the Gmail spam classifier decision and
+   * never mark this email as SPAM in the mailbox.
+   * @opt_param bool processForCalendar Process calendar invites in the email and
+   * add any extracted meetings to the Google Calendar for this user.
+   * @return Google_Service_Gmail_Message
+   */
+  public function import($userId, Google_Service_Gmail_Message $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('import', array($params), "Google_Service_Gmail_Message");
+  }
+  /**
+   * Directly inserts a message into only this user's mailbox similar to IMAP
+   * APPEND, bypassing most scanning and classification. Does not send a message.
+   * (messages.insert)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_Message $postBody
+   * @param array $optParams Optional parameters.
+   *
+   * @opt_param bool deleted Mark the email as permanently deleted (not TRASH) and
+   * only visible in Google Vault to a Vault administrator. Only used for G Suite
+   * accounts.
+   * @opt_param string internalDateSource Source for Gmail's internal date of the
+   * message.
+   * @return Google_Service_Gmail_Message
+   */
+  public function insert($userId, Google_Service_Gmail_Message $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('insert', array($params), "Google_Service_Gmail_Message");
+  }
+  /**
+   * Lists the messages in the user's mailbox. (messages.listUsersMessages)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   *
+   * @opt_param bool includeSpamTrash Include messages from SPAM and TRASH in the
+   * results.
+   * @opt_param string labelIds Only return messages with labels that match all of
+   * the specified label IDs.
+   * @opt_param string maxResults Maximum number of messages to return.
+   * @opt_param string pageToken Page token to retrieve a specific page of results
+   * in the list.
+   * @opt_param string q Only return messages matching the specified query.
+   * Supports the same query format as the Gmail search box. For example,
+   * "from:someuser@example.com rfc822msgid: is:unread". Parameter cannot be used
+   * when accessing the api using the gmail.metadata scope.
+   * @return Google_Service_Gmail_ListMessagesResponse
+   */
+  public function listUsersMessages($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('list', array($params), "Google_Service_Gmail_ListMessagesResponse");
+  }
+  /**
+   * Modifies the labels on the specified message. (messages.modify)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the message to modify.
+   * @param Google_Service_Gmail_ModifyMessageRequest $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Message
+   */
+  public function modify($userId, $id, Google_Service_Gmail_ModifyMessageRequest $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('modify', array($params), "Google_Service_Gmail_Message");
+  }
+  /**
+   * Sends the specified message to the recipients in the To, Cc, and Bcc headers.
+   * (messages.send)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_Message $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Message
+   */
+  public function send($userId, Google_Service_Gmail_Message $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('send', array($params), "Google_Service_Gmail_Message");
+  }
+  /**
+   * Moves the specified message to the trash. (messages.trash)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the message to Trash.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Message
+   */
+  public function trash($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('trash', array($params), "Google_Service_Gmail_Message");
+  }
+  /**
+   * Removes the specified message from the trash. (messages.untrash)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the message to remove from Trash.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Message
+   */
+  public function untrash($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('untrash', array($params), "Google_Service_Gmail_Message");
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersMessagesAttachments.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersMessagesAttachments.php
new file mode 100644
index 0000000..6c3a5e4
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersMessagesAttachments.php
@@ -0,0 +1,44 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "attachments" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $attachments = $gmailService->attachments;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersMessagesAttachments extends Google_Service_Resource
+{
+  /**
+   * Gets the specified message attachment. (attachments.get)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $messageId The ID of the message containing the attachment.
+   * @param string $id The ID of the attachment.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_MessagePartBody
+   */
+  public function get($userId, $messageId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'messageId' => $messageId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('get', array($params), "Google_Service_Gmail_MessagePartBody");
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettings.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettings.php
new file mode 100644
index 0000000..455d954
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettings.php
@@ -0,0 +1,149 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "settings" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $settings = $gmailService->settings;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersSettings extends Google_Service_Resource
+{
+  /**
+   * Gets the auto-forwarding setting for the specified account.
+   * (settings.getAutoForwarding)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_AutoForwarding
+   */
+  public function getAutoForwarding($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('getAutoForwarding', array($params), "Google_Service_Gmail_AutoForwarding");
+  }
+  /**
+   * Gets IMAP settings. (settings.getImap)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_ImapSettings
+   */
+  public function getImap($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('getImap', array($params), "Google_Service_Gmail_ImapSettings");
+  }
+  /**
+   * Gets POP settings. (settings.getPop)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_PopSettings
+   */
+  public function getPop($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('getPop', array($params), "Google_Service_Gmail_PopSettings");
+  }
+  /**
+   * Gets vacation responder settings. (settings.getVacation)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_VacationSettings
+   */
+  public function getVacation($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('getVacation', array($params), "Google_Service_Gmail_VacationSettings");
+  }
+  /**
+   * Updates the auto-forwarding setting for the specified account. A verified
+   * forwarding address must be specified when auto-forwarding is enabled.
+   *
+   * This method is only available to service account clients that have been
+   * delegated domain-wide authority. (settings.updateAutoForwarding)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_AutoForwarding $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_AutoForwarding
+   */
+  public function updateAutoForwarding($userId, Google_Service_Gmail_AutoForwarding $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('updateAutoForwarding', array($params), "Google_Service_Gmail_AutoForwarding");
+  }
+  /**
+   * Updates IMAP settings. (settings.updateImap)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_ImapSettings $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_ImapSettings
+   */
+  public function updateImap($userId, Google_Service_Gmail_ImapSettings $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('updateImap', array($params), "Google_Service_Gmail_ImapSettings");
+  }
+  /**
+   * Updates POP settings. (settings.updatePop)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_PopSettings $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_PopSettings
+   */
+  public function updatePop($userId, Google_Service_Gmail_PopSettings $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('updatePop', array($params), "Google_Service_Gmail_PopSettings");
+  }
+  /**
+   * Updates vacation responder settings. (settings.updateVacation)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_VacationSettings $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_VacationSettings
+   */
+  public function updateVacation($userId, Google_Service_Gmail_VacationSettings $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('updateVacation', array($params), "Google_Service_Gmail_VacationSettings");
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsFilters.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsFilters.php
new file mode 100644
index 0000000..d142bc2
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsFilters.php
@@ -0,0 +1,86 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "filters" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $filters = $gmailService->filters;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersSettingsFilters extends Google_Service_Resource
+{
+  /**
+   * Creates a filter. (filters.create)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_Filter $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Filter
+   */
+  public function create($userId, Google_Service_Gmail_Filter $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('create', array($params), "Google_Service_Gmail_Filter");
+  }
+  /**
+   * Deletes a filter. (filters.delete)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the filter to be deleted.
+   * @param array $optParams Optional parameters.
+   */
+  public function delete($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('delete', array($params));
+  }
+  /**
+   * Gets a filter. (filters.get)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the filter to be fetched.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Filter
+   */
+  public function get($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('get', array($params), "Google_Service_Gmail_Filter");
+  }
+  /**
+   * Lists the message filters of a Gmail user. (filters.listUsersSettingsFilters)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_ListFiltersResponse
+   */
+  public function listUsersSettingsFilters($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('list', array($params), "Google_Service_Gmail_ListFiltersResponse");
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsForwardingAddresses.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsForwardingAddresses.php
new file mode 100644
index 0000000..b0e2508
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsForwardingAddresses.php
@@ -0,0 +1,97 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "forwardingAddresses" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $forwardingAddresses = $gmailService->forwardingAddresses;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersSettingsForwardingAddresses extends Google_Service_Resource
+{
+  /**
+   * Creates a forwarding address. If ownership verification is required, a
+   * message will be sent to the recipient and the resource's verification status
+   * will be set to pending; otherwise, the resource will be created with
+   * verification status set to accepted.
+   *
+   * This method is only available to service account clients that have been
+   * delegated domain-wide authority. (forwardingAddresses.create)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_ForwardingAddress $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_ForwardingAddress
+   */
+  public function create($userId, Google_Service_Gmail_ForwardingAddress $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('create', array($params), "Google_Service_Gmail_ForwardingAddress");
+  }
+  /**
+   * Deletes the specified forwarding address and revokes any verification that
+   * may have been required.
+   *
+   * This method is only available to service account clients that have been
+   * delegated domain-wide authority. (forwardingAddresses.delete)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param string $forwardingEmail The forwarding address to be deleted.
+   * @param array $optParams Optional parameters.
+   */
+  public function delete($userId, $forwardingEmail, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'forwardingEmail' => $forwardingEmail);
+    $params = array_merge($params, $optParams);
+    return $this->call('delete', array($params));
+  }
+  /**
+   * Gets the specified forwarding address. (forwardingAddresses.get)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param string $forwardingEmail The forwarding address to be retrieved.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_ForwardingAddress
+   */
+  public function get($userId, $forwardingEmail, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'forwardingEmail' => $forwardingEmail);
+    $params = array_merge($params, $optParams);
+    return $this->call('get', array($params), "Google_Service_Gmail_ForwardingAddress");
+  }
+  /**
+   * Lists the forwarding addresses for the specified account.
+   * (forwardingAddresses.listUsersSettingsForwardingAddresses)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_ListForwardingAddressesResponse
+   */
+  public function listUsersSettingsForwardingAddresses($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('list', array($params), "Google_Service_Gmail_ListForwardingAddressesResponse");
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsSendAs.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsSendAs.php
new file mode 100644
index 0000000..f3c45cf
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsSendAs.php
@@ -0,0 +1,162 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "sendAs" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $sendAs = $gmailService->sendAs;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersSettingsSendAs extends Google_Service_Resource
+{
+  /**
+   * Creates a custom "from" send-as alias. If an SMTP MSA is specified, Gmail
+   * will attempt to connect to the SMTP service to validate the configuration
+   * before creating the alias. If ownership verification is required for the
+   * alias, a message will be sent to the email address and the resource's
+   * verification status will be set to pending; otherwise, the resource will be
+   * created with verification status set to accepted. If a signature is provided,
+   * Gmail will sanitize the HTML before saving it with the alias.
+   *
+   * This method is only available to service account clients that have been
+   * delegated domain-wide authority. (sendAs.create)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param Google_Service_Gmail_SendAs $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_SendAs
+   */
+  public function create($userId, Google_Service_Gmail_SendAs $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('create', array($params), "Google_Service_Gmail_SendAs");
+  }
+  /**
+   * Deletes the specified send-as alias. Revokes any verification that may have
+   * been required for using it.
+   *
+   * This method is only available to service account clients that have been
+   * delegated domain-wide authority. (sendAs.delete)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param string $sendAsEmail The send-as alias to be deleted.
+   * @param array $optParams Optional parameters.
+   */
+  public function delete($userId, $sendAsEmail, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'sendAsEmail' => $sendAsEmail);
+    $params = array_merge($params, $optParams);
+    return $this->call('delete', array($params));
+  }
+  /**
+   * Gets the specified send-as alias. Fails with an HTTP 404 error if the
+   * specified address is not a member of the collection. (sendAs.get)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param string $sendAsEmail The send-as alias to be retrieved.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_SendAs
+   */
+  public function get($userId, $sendAsEmail, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'sendAsEmail' => $sendAsEmail);
+    $params = array_merge($params, $optParams);
+    return $this->call('get', array($params), "Google_Service_Gmail_SendAs");
+  }
+  /**
+   * Lists the send-as aliases for the specified account. The result includes the
+   * primary send-as address associated with the account as well as any custom
+   * "from" aliases. (sendAs.listUsersSettingsSendAs)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_ListSendAsResponse
+   */
+  public function listUsersSettingsSendAs($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('list', array($params), "Google_Service_Gmail_ListSendAsResponse");
+  }
+  /**
+   * Updates a send-as alias. If a signature is provided, Gmail will sanitize the
+   * HTML before saving it with the alias.
+   *
+   * Addresses other than the primary address for the account can only be updated
+   * by service account clients that have been delegated domain-wide authority.
+   * This method supports patch semantics. (sendAs.patch)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param string $sendAsEmail The send-as alias to be updated.
+   * @param Google_Service_Gmail_SendAs $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_SendAs
+   */
+  public function patch($userId, $sendAsEmail, Google_Service_Gmail_SendAs $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'sendAsEmail' => $sendAsEmail, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('patch', array($params), "Google_Service_Gmail_SendAs");
+  }
+  /**
+   * Updates a send-as alias. If a signature is provided, Gmail will sanitize the
+   * HTML before saving it with the alias.
+   *
+   * Addresses other than the primary address for the account can only be updated
+   * by service account clients that have been delegated domain-wide authority.
+   * (sendAs.update)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param string $sendAsEmail The send-as alias to be updated.
+   * @param Google_Service_Gmail_SendAs $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_SendAs
+   */
+  public function update($userId, $sendAsEmail, Google_Service_Gmail_SendAs $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'sendAsEmail' => $sendAsEmail, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('update', array($params), "Google_Service_Gmail_SendAs");
+  }
+  /**
+   * Sends a verification email to the specified send-as alias address. The
+   * verification status must be pending.
+   *
+   * This method is only available to service account clients that have been
+   * delegated domain-wide authority. (sendAs.verify)
+   *
+   * @param string $userId User's email address. The special value "me" can be
+   * used to indicate the authenticated user.
+   * @param string $sendAsEmail The send-as alias to be verified.
+   * @param array $optParams Optional parameters.
+   */
+  public function verify($userId, $sendAsEmail, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'sendAsEmail' => $sendAsEmail);
+    $params = array_merge($params, $optParams);
+    return $this->call('verify', array($params));
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsSendAsSmimeInfo.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsSendAsSmimeInfo.php
new file mode 100644
index 0000000..ffb17fa
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersSettingsSendAsSmimeInfo.php
@@ -0,0 +1,115 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "smimeInfo" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $smimeInfo = $gmailService->smimeInfo;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersSettingsSendAsSmimeInfo extends Google_Service_Resource
+{
+  /**
+   * Deletes the specified S/MIME config for the specified send-as alias.
+   * (smimeInfo.delete)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $sendAsEmail The email address that appears in the "From:"
+   * header for mail sent using this alias.
+   * @param string $id The immutable ID for the SmimeInfo.
+   * @param array $optParams Optional parameters.
+   */
+  public function delete($userId, $sendAsEmail, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'sendAsEmail' => $sendAsEmail, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('delete', array($params));
+  }
+  /**
+   * Gets the specified S/MIME config for the specified send-as alias.
+   * (smimeInfo.get)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $sendAsEmail The email address that appears in the "From:"
+   * header for mail sent using this alias.
+   * @param string $id The immutable ID for the SmimeInfo.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_SmimeInfo
+   */
+  public function get($userId, $sendAsEmail, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'sendAsEmail' => $sendAsEmail, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('get', array($params), "Google_Service_Gmail_SmimeInfo");
+  }
+  /**
+   * Insert (upload) the given S/MIME config for the specified send-as alias. Note
+   * that pkcs12 format is required for the key. (smimeInfo.insert)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $sendAsEmail The email address that appears in the "From:"
+   * header for mail sent using this alias.
+   * @param Google_Service_Gmail_SmimeInfo $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_SmimeInfo
+   */
+  public function insert($userId, $sendAsEmail, Google_Service_Gmail_SmimeInfo $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'sendAsEmail' => $sendAsEmail, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('insert', array($params), "Google_Service_Gmail_SmimeInfo");
+  }
+  /**
+   * Lists S/MIME configs for the specified send-as alias.
+   * (smimeInfo.listUsersSettingsSendAsSmimeInfo)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $sendAsEmail The email address that appears in the "From:"
+   * header for mail sent using this alias.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_ListSmimeInfoResponse
+   */
+  public function listUsersSettingsSendAsSmimeInfo($userId, $sendAsEmail, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'sendAsEmail' => $sendAsEmail);
+    $params = array_merge($params, $optParams);
+    return $this->call('list', array($params), "Google_Service_Gmail_ListSmimeInfoResponse");
+  }
+  /**
+   * Sets the default S/MIME config for the specified send-as alias.
+   * (smimeInfo.setDefault)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $sendAsEmail The email address that appears in the "From:"
+   * header for mail sent using this alias.
+   * @param string $id The immutable ID for the SmimeInfo.
+   * @param array $optParams Optional parameters.
+   */
+  public function setDefault($userId, $sendAsEmail, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'sendAsEmail' => $sendAsEmail, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('setDefault', array($params));
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersThreads.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersThreads.php
new file mode 100644
index 0000000..b8909c4
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Resource/UsersThreads.php
@@ -0,0 +1,135 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+/**
+ * The "threads" collection of methods.
+ * Typical usage is:
+ *  <code>
+ *   $gmailService = new Google_Service_Gmail(...);
+ *   $threads = $gmailService->threads;
+ *  </code>
+ */
+class Google_Service_Gmail_Resource_UsersThreads extends Google_Service_Resource
+{
+  /**
+   * Immediately and permanently deletes the specified thread. This operation
+   * cannot be undone. Prefer threads.trash instead. (threads.delete)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id ID of the Thread to delete.
+   * @param array $optParams Optional parameters.
+   */
+  public function delete($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('delete', array($params));
+  }
+  /**
+   * Gets the specified thread. (threads.get)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the thread to retrieve.
+   * @param array $optParams Optional parameters.
+   *
+   * @opt_param string format The format to return the messages in.
+   * @opt_param string metadataHeaders When given and format is METADATA, only
+   * include headers specified.
+   * @return Google_Service_Gmail_Thread
+   */
+  public function get($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('get', array($params), "Google_Service_Gmail_Thread");
+  }
+  /**
+   * Lists the threads in the user's mailbox. (threads.listUsersThreads)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param array $optParams Optional parameters.
+   *
+   * @opt_param bool includeSpamTrash Include threads from SPAM and TRASH in the
+   * results.
+   * @opt_param string labelIds Only return threads with labels that match all of
+   * the specified label IDs.
+   * @opt_param string maxResults Maximum number of threads to return.
+   * @opt_param string pageToken Page token to retrieve a specific page of results
+   * in the list.
+   * @opt_param string q Only return threads matching the specified query.
+   * Supports the same query format as the Gmail search box. For example,
+   * "from:someuser@example.com rfc822msgid: is:unread". Parameter cannot be used
+   * when accessing the api using the gmail.metadata scope.
+   * @return Google_Service_Gmail_ListThreadsResponse
+   */
+  public function listUsersThreads($userId, $optParams = array())
+  {
+    $params = array('userId' => $userId);
+    $params = array_merge($params, $optParams);
+    return $this->call('list', array($params), "Google_Service_Gmail_ListThreadsResponse");
+  }
+  /**
+   * Modifies the labels applied to the thread. This applies to all messages in
+   * the thread. (threads.modify)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the thread to modify.
+   * @param Google_Service_Gmail_ModifyThreadRequest $postBody
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Thread
+   */
+  public function modify($userId, $id, Google_Service_Gmail_ModifyThreadRequest $postBody, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id, 'postBody' => $postBody);
+    $params = array_merge($params, $optParams);
+    return $this->call('modify', array($params), "Google_Service_Gmail_Thread");
+  }
+  /**
+   * Moves the specified thread to the trash. (threads.trash)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the thread to Trash.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Thread
+   */
+  public function trash($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('trash', array($params), "Google_Service_Gmail_Thread");
+  }
+  /**
+   * Removes the specified thread from the trash. (threads.untrash)
+   *
+   * @param string $userId The user's email address. The special value me can be
+   * used to indicate the authenticated user.
+   * @param string $id The ID of the thread to remove from Trash.
+   * @param array $optParams Optional parameters.
+   * @return Google_Service_Gmail_Thread
+   */
+  public function untrash($userId, $id, $optParams = array())
+  {
+    $params = array('userId' => $userId, 'id' => $id);
+    $params = array_merge($params, $optParams);
+    return $this->call('untrash', array($params), "Google_Service_Gmail_Thread");
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/SendAs.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/SendAs.php
new file mode 100644
index 0000000..82f96cd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/SendAs.php
@@ -0,0 +1,109 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_SendAs extends Google_Model
+{
+  public $displayName;
+  public $isDefault;
+  public $isPrimary;
+  public $replyToAddress;
+  public $sendAsEmail;
+  public $signature;
+  protected $smtpMsaType = 'Google_Service_Gmail_SmtpMsa';
+  protected $smtpMsaDataType = '';
+  public $treatAsAlias;
+  public $verificationStatus;
+
+  public function setDisplayName($displayName)
+  {
+    $this->displayName = $displayName;
+  }
+  public function getDisplayName()
+  {
+    return $this->displayName;
+  }
+  public function setIsDefault($isDefault)
+  {
+    $this->isDefault = $isDefault;
+  }
+  public function getIsDefault()
+  {
+    return $this->isDefault;
+  }
+  public function setIsPrimary($isPrimary)
+  {
+    $this->isPrimary = $isPrimary;
+  }
+  public function getIsPrimary()
+  {
+    return $this->isPrimary;
+  }
+  public function setReplyToAddress($replyToAddress)
+  {
+    $this->replyToAddress = $replyToAddress;
+  }
+  public function getReplyToAddress()
+  {
+    return $this->replyToAddress;
+  }
+  public function setSendAsEmail($sendAsEmail)
+  {
+    $this->sendAsEmail = $sendAsEmail;
+  }
+  public function getSendAsEmail()
+  {
+    return $this->sendAsEmail;
+  }
+  public function setSignature($signature)
+  {
+    $this->signature = $signature;
+  }
+  public function getSignature()
+  {
+    return $this->signature;
+  }
+  /**
+   * @param Google_Service_Gmail_SmtpMsa
+   */
+  public function setSmtpMsa(Google_Service_Gmail_SmtpMsa $smtpMsa)
+  {
+    $this->smtpMsa = $smtpMsa;
+  }
+  /**
+   * @return Google_Service_Gmail_SmtpMsa
+   */
+  public function getSmtpMsa()
+  {
+    return $this->smtpMsa;
+  }
+  public function setTreatAsAlias($treatAsAlias)
+  {
+    $this->treatAsAlias = $treatAsAlias;
+  }
+  public function getTreatAsAlias()
+  {
+    return $this->treatAsAlias;
+  }
+  public function setVerificationStatus($verificationStatus)
+  {
+    $this->verificationStatus = $verificationStatus;
+  }
+  public function getVerificationStatus()
+  {
+    return $this->verificationStatus;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/SmimeInfo.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/SmimeInfo.php
new file mode 100644
index 0000000..0e21802
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/SmimeInfo.php
@@ -0,0 +1,84 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_SmimeInfo extends Google_Model
+{
+  public $encryptedKeyPassword;
+  public $expiration;
+  public $id;
+  public $isDefault;
+  public $issuerCn;
+  public $pem;
+  public $pkcs12;
+
+  public function setEncryptedKeyPassword($encryptedKeyPassword)
+  {
+    $this->encryptedKeyPassword = $encryptedKeyPassword;
+  }
+  public function getEncryptedKeyPassword()
+  {
+    return $this->encryptedKeyPassword;
+  }
+  public function setExpiration($expiration)
+  {
+    $this->expiration = $expiration;
+  }
+  public function getExpiration()
+  {
+    return $this->expiration;
+  }
+  public function setId($id)
+  {
+    $this->id = $id;
+  }
+  public function getId()
+  {
+    return $this->id;
+  }
+  public function setIsDefault($isDefault)
+  {
+    $this->isDefault = $isDefault;
+  }
+  public function getIsDefault()
+  {
+    return $this->isDefault;
+  }
+  public function setIssuerCn($issuerCn)
+  {
+    $this->issuerCn = $issuerCn;
+  }
+  public function getIssuerCn()
+  {
+    return $this->issuerCn;
+  }
+  public function setPem($pem)
+  {
+    $this->pem = $pem;
+  }
+  public function getPem()
+  {
+    return $this->pem;
+  }
+  public function setPkcs12($pkcs12)
+  {
+    $this->pkcs12 = $pkcs12;
+  }
+  public function getPkcs12()
+  {
+    return $this->pkcs12;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/SmtpMsa.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/SmtpMsa.php
new file mode 100644
index 0000000..c019138
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/SmtpMsa.php
@@ -0,0 +1,66 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_SmtpMsa extends Google_Model
+{
+  public $host;
+  public $password;
+  public $port;
+  public $securityMode;
+  public $username;
+
+  public function setHost($host)
+  {
+    $this->host = $host;
+  }
+  public function getHost()
+  {
+    return $this->host;
+  }
+  public function setPassword($password)
+  {
+    $this->password = $password;
+  }
+  public function getPassword()
+  {
+    return $this->password;
+  }
+  public function setPort($port)
+  {
+    $this->port = $port;
+  }
+  public function getPort()
+  {
+    return $this->port;
+  }
+  public function setSecurityMode($securityMode)
+  {
+    $this->securityMode = $securityMode;
+  }
+  public function getSecurityMode()
+  {
+    return $this->securityMode;
+  }
+  public function setUsername($username)
+  {
+    $this->username = $username;
+  }
+  public function getUsername()
+  {
+    return $this->username;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Thread.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Thread.php
new file mode 100644
index 0000000..74a0f0a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/Thread.php
@@ -0,0 +1,65 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_Thread extends Google_Collection
+{
+  protected $collection_key = 'messages';
+  public $historyId;
+  public $id;
+  protected $messagesType = 'Google_Service_Gmail_Message';
+  protected $messagesDataType = 'array';
+  public $snippet;
+
+  public function setHistoryId($historyId)
+  {
+    $this->historyId = $historyId;
+  }
+  public function getHistoryId()
+  {
+    return $this->historyId;
+  }
+  public function setId($id)
+  {
+    $this->id = $id;
+  }
+  public function getId()
+  {
+    return $this->id;
+  }
+  /**
+   * @param Google_Service_Gmail_Message
+   */
+  public function setMessages($messages)
+  {
+    $this->messages = $messages;
+  }
+  /**
+   * @return Google_Service_Gmail_Message
+   */
+  public function getMessages()
+  {
+    return $this->messages;
+  }
+  public function setSnippet($snippet)
+  {
+    $this->snippet = $snippet;
+  }
+  public function getSnippet()
+  {
+    return $this->snippet;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/VacationSettings.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/VacationSettings.php
new file mode 100644
index 0000000..1e990db
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/VacationSettings.php
@@ -0,0 +1,93 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_VacationSettings extends Google_Model
+{
+  public $enableAutoReply;
+  public $endTime;
+  public $responseBodyHtml;
+  public $responseBodyPlainText;
+  public $responseSubject;
+  public $restrictToContacts;
+  public $restrictToDomain;
+  public $startTime;
+
+  public function setEnableAutoReply($enableAutoReply)
+  {
+    $this->enableAutoReply = $enableAutoReply;
+  }
+  public function getEnableAutoReply()
+  {
+    return $this->enableAutoReply;
+  }
+  public function setEndTime($endTime)
+  {
+    $this->endTime = $endTime;
+  }
+  public function getEndTime()
+  {
+    return $this->endTime;
+  }
+  public function setResponseBodyHtml($responseBodyHtml)
+  {
+    $this->responseBodyHtml = $responseBodyHtml;
+  }
+  public function getResponseBodyHtml()
+  {
+    return $this->responseBodyHtml;
+  }
+  public function setResponseBodyPlainText($responseBodyPlainText)
+  {
+    $this->responseBodyPlainText = $responseBodyPlainText;
+  }
+  public function getResponseBodyPlainText()
+  {
+    return $this->responseBodyPlainText;
+  }
+  public function setResponseSubject($responseSubject)
+  {
+    $this->responseSubject = $responseSubject;
+  }
+  public function getResponseSubject()
+  {
+    return $this->responseSubject;
+  }
+  public function setRestrictToContacts($restrictToContacts)
+  {
+    $this->restrictToContacts = $restrictToContacts;
+  }
+  public function getRestrictToContacts()
+  {
+    return $this->restrictToContacts;
+  }
+  public function setRestrictToDomain($restrictToDomain)
+  {
+    $this->restrictToDomain = $restrictToDomain;
+  }
+  public function getRestrictToDomain()
+  {
+    return $this->restrictToDomain;
+  }
+  public function setStartTime($startTime)
+  {
+    $this->startTime = $startTime;
+  }
+  public function getStartTime()
+  {
+    return $this->startTime;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/WatchRequest.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/WatchRequest.php
new file mode 100644
index 0000000..5fa9144
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/WatchRequest.php
@@ -0,0 +1,49 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_WatchRequest extends Google_Collection
+{
+  protected $collection_key = 'labelIds';
+  public $labelFilterAction;
+  public $labelIds;
+  public $topicName;
+
+  public function setLabelFilterAction($labelFilterAction)
+  {
+    $this->labelFilterAction = $labelFilterAction;
+  }
+  public function getLabelFilterAction()
+  {
+    return $this->labelFilterAction;
+  }
+  public function setLabelIds($labelIds)
+  {
+    $this->labelIds = $labelIds;
+  }
+  public function getLabelIds()
+  {
+    return $this->labelIds;
+  }
+  public function setTopicName($topicName)
+  {
+    $this->topicName = $topicName;
+  }
+  public function getTopicName()
+  {
+    return $this->topicName;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/WatchResponse.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/WatchResponse.php
new file mode 100644
index 0000000..d7dc3bf
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient-services/src/Google/Service/Gmail/WatchResponse.php
@@ -0,0 +1,39 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+class Google_Service_Gmail_WatchResponse extends Google_Model
+{
+  public $expiration;
+  public $historyId;
+
+  public function setExpiration($expiration)
+  {
+    $this->expiration = $expiration;
+  }
+  public function getExpiration()
+  {
+    return $this->expiration;
+  }
+  public function setHistoryId($historyId)
+  {
+    $this->historyId = $historyId;
+  }
+  public function getHistoryId()
+  {
+    return $this->historyId;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/.gitattributes b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/.gitattributes
new file mode 100644
index 0000000..d4e9c25
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/.gitattributes
@@ -0,0 +1,9 @@
+/.github export-ignore
+/.gitignore export-ignore
+/.travis.yml export-ignore
+/CONTRIBUTING.md export-ignore
+/examples export-ignore
+/phpunit.xml.dist export-ignore
+/style export-ignore
+/tests export-ignore
+/UPGRADING.md export-ignore
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/LICENSE
new file mode 100644
index 0000000..a148ba5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/LICENSE
@@ -0,0 +1,203 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction,
+and distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by
+the copyright owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all
+other entities that control, are controlled by, or are under common
+control with that entity. For the purposes of this definition,
+"control" means (i) the power, direct or indirect, to cause the
+direction or management of such entity, whether by contract or
+otherwise, or (ii) ownership of fifty percent (50%) or more of the
+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity
+exercising permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications,
+including but not limited to software source code, documentation
+source, and configuration files.
+
+"Object" form shall mean any form resulting from mechanical
+transformation or translation of a Source form, including but
+not limited to compiled object code, generated documentation,
+and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or
+Object form, made available under the License, as indicated by a
+copyright notice that is included in or attached to the work
+(an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object
+form, that is based on (or derived from) the Work and for which the
+editorial revisions, annotations, elaborations, or other modifications
+represent, as a whole, an original work of authorship. For the purposes
+of this License, Derivative Works shall not include works that remain
+separable from, or merely link (or bind by name) to the interfaces of,
+the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including
+the original version of the Work and any modifications or additions
+to that Work or Derivative Works thereof, that is intentionally
+submitted to Licensor for inclusion in the Work by the copyright owner
+or by an individual or Legal Entity authorized to submit on behalf of
+the copyright owner. For the purposes of this definition, "submitted"
+means any form of electronic, verbal, or written communication sent
+to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems,
+and issue tracking systems that are managed by, or on behalf of, the
+Licensor for the purpose of discussing and improving the Work, but
+excluding communication that is conspicuously marked or otherwise
+designated in writing by the copyright owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity
+on behalf of whom a Contribution has been received by Licensor and
+subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+this License, each Contributor hereby grants to You a perpetual,
+worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+copyright license to reproduce, prepare Derivative Works of,
+publicly display, publicly perform, sublicense, and distribute the
+Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
+this License, each Contributor hereby grants to You a perpetual,
+worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+(except as stated in this section) patent license to make, have made,
+use, offer to sell, sell, import, and otherwise transfer the Work,
+where such license applies only to those patent claims licensable
+by such Contributor that are necessarily infringed by their
+Contribution(s) alone or by combination of their Contribution(s)
+with the Work to which such Contribution(s) was submitted. If You
+institute patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that the Work
+or a Contribution incorporated within the Work constitutes direct
+or contributory patent infringement, then any patent licenses
+granted to You under this License for that Work shall terminate
+as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+Work or Derivative Works thereof in any medium, with or without
+modifications, and in Source or Object form, provided that You
+meet the following conditions:
+
+(a) You must give any other recipients of the Work or
+Derivative Works a copy of this License; and
+
+(b) You must cause any modified files to carry prominent notices
+stating that You changed the files; and
+
+(c) You must retain, in the Source form of any Derivative Works
+that You distribute, all copyright, patent, trademark, and
+attribution notices from the Source form of the Work,
+excluding those notices that do not pertain to any part of
+the Derivative Works; and
+
+(d) If the Work includes a "NOTICE" text file as part of its
+distribution, then any Derivative Works that You distribute must
+include a readable copy of the attribution notices contained
+within such NOTICE file, excluding those notices that do not
+pertain to any part of the Derivative Works, in at least one
+of the following places: within a NOTICE text file distributed
+as part of the Derivative Works; within the Source form or
+documentation, if provided along with the Derivative Works; or,
+within a display generated by the Derivative Works, if and
+wherever such third-party notices normally appear. The contents
+of the NOTICE file are for informational purposes only and
+do not modify the License. You may add Your own attribution
+notices within Derivative Works that You distribute, alongside
+or as an addendum to the NOTICE text from the Work, provided
+that such additional attribution notices cannot be construed
+as modifying the License.
+
+You may add Your own copyright statement to Your modifications and
+may provide additional or different license terms and conditions
+for use, reproduction, or distribution of Your modifications, or
+for any such Derivative Works as a whole, provided Your use,
+reproduction, and distribution of the Work otherwise complies with
+the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+any Contribution intentionally submitted for inclusion in the Work
+by You to the Licensor shall be under the terms and conditions of
+this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify
+the terms of any separate license agreement you may have executed
+with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+names, trademarks, service marks, or product names of the Licensor,
+except as required for reasonable and customary use in describing the
+origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+agreed to in writing, Licensor provides the Work (and each
+Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+implied, including, without limitation, any warranties or conditions
+of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+PARTICULAR PURPOSE. You are solely responsible for determining the
+appropriateness of using or redistributing the Work and assume any
+risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+whether in tort (including negligence), contract, or otherwise,
+unless required by applicable law (such as deliberate and grossly
+negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special,
+incidental, or consequential damages of any character arising as a
+result of this License or out of the use or inability to use the
+Work (including but not limited to damages for loss of goodwill,
+work stoppage, computer failure or malfunction, or any and all
+other commercial damages or losses), even if such Contributor
+has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+the Work or Derivative Works thereof, You may choose to offer,
+and charge a fee for, acceptance of support, warranty, indemnity,
+or other liability obligations and/or rights consistent with this
+License. However, in accepting such obligations, You may act only
+on Your own behalf and on Your sole responsibility, not on behalf
+of any other Contributor, and only if You agree to indemnify,
+defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason
+of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+To apply the Apache License to your work, attach the following
+boilerplate notice, with the fields enclosed by brackets "[]"
+replaced with your own identifying information. (Don't include
+the brackets!) The text should be enclosed in the appropriate
+comment syntax for the file format. We also recommend that a
+file or class name and description of purpose be included on the
+same "printed page" as the copyright notice for easier
+identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/README.md b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/README.md
new file mode 100644
index 0000000..03cea13
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/README.md
@@ -0,0 +1,368 @@
+[![Build Status](https://travis-ci.org/google/google-api-php-client.svg?branch=master)](https://travis-ci.org/google/google-api-php-client)
+
+# Google APIs Client Library for PHP #
+
+## Library maintenance
+This client library is supported but in maintenance mode only.  We are fixing necessary bugs and adding essential features to ensure this library continues to meet your needs for accessing Google APIs.  Non-critical issues will be closed.  Any issue may be reopened if it is causing ongoing problems.
+
+## Description ##
+The Google API Client Library enables you to work with Google APIs such as Google+, Drive, or YouTube on your server.
+
+## Beta ##
+This library is in Beta. We're comfortable enough with the stability and features of the library that we want you to build real production applications on it. We will make an effort to support the public and protected surface of the library and maintain backwards compatibility in the future. While we are still in Beta, we reserve the right to make incompatible changes.
+
+## Requirements ##
+* [PHP 5.4.0 or higher](http://www.php.net/)
+
+## Google Cloud Platform APIs
+If you're looking to call the **Google Cloud Platform** APIs, you will want to use the [Google Cloud PHP](https://github.com/googlecloudplatform/google-cloud-php) library instead of this one.
+
+## Developer Documentation ##
+http://developers.google.com/api-client-library/php
+
+## Installation ##
+
+You can use **Composer** or simply **Download the Release**
+
+### Composer
+
+The preferred method is via [composer](https://getcomposer.org). Follow the
+[installation instructions](https://getcomposer.org/doc/00-intro.md) if you do not already have
+composer installed.
+
+Once composer is installed, execute the following command in your project root to install this library:
+
+```sh
+composer require google/apiclient:^2.0
+```
+
+Finally, be sure to include the autoloader:
+
+```php
+require_once '/path/to/your-project/vendor/autoload.php';
+```
+
+### Download the Release
+
+If you abhor using composer, you can download the package in its entirety. The [Releases](https://github.com/google/google-api-php-client/releases) page lists all stable versions. Download any file
+with the name `google-api-php-client-[RELEASE_NAME].zip` for a package including this library and its dependencies.
+
+Uncompress the zip file you download, and include the autoloader in your project:
+
+```php
+require_once '/path/to/google-api-php-client/vendor/autoload.php';
+```
+
+For additional installation and setup instructions, see [the documentation](https://developers.google.com/api-client-library/php/start/installation).
+
+## Examples ##
+See the [`examples/`](examples) directory for examples of the key client features. You can
+view them in your browser by running the php built-in web server.
+
+```
+$ php -S localhost:8000 -t examples/
+```
+
+And then browsing to the host and port you specified
+(in the above example, `http://localhost:8000`).
+
+### Basic Example ###
+
+```php
+// include your composer dependencies
+require_once 'vendor/autoload.php';
+
+$client = new Google_Client();
+$client->setApplicationName("Client_Library_Examples");
+$client->setDeveloperKey("YOUR_APP_KEY");
+
+$service = new Google_Service_Books($client);
+$optParams = array('filter' => 'free-ebooks');
+$results = $service->volumes->listVolumes('Henry David Thoreau', $optParams);
+
+foreach ($results as $item) {
+  echo $item['volumeInfo']['title'], "<br /> \n";
+}
+```
+
+### Authentication with OAuth ###
+
+> An example of this can be seen in [`examples/simple-file-upload.php`](examples/simple-file-upload.php).
+
+1. Follow the instructions to [Create Web Application Credentials](https://developers.google.com/api-client-library/php/auth/web-app#creatingcred)
+1. Download the JSON credentials
+1. Set the path to these credentials using `Google_Client::setAuthConfig`:
+
+    ```php
+    $client = new Google_Client();
+    $client->setAuthConfig('/path/to/client_credentials.json');
+    ```
+
+1. Set the scopes required for the API you are going to call
+
+    ```php
+    $client->addScope(Google_Service_Drive::DRIVE);
+    ```
+
+1. Set your application's redirect URI
+
+    ```php
+    // Your redirect URI can be any registered URI, but in this example
+    // we redirect back to this same page
+    $redirect_uri = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
+    $client->setRedirectUri($redirect_uri);
+    ```
+
+1. In the script handling the redirect URI, exchange the authorization code for an access token:
+
+    ```php
+    if (isset($_GET['code'])) {
+        $token = $client->fetchAccessTokenWithAuthCode($_GET['code']);
+    }
+    ```
+
+### Authentication with Service Accounts ###
+
+> An example of this can be seen in [`examples/service-account.php`](examples/service-account.php).
+
+1. Follow the instructions to [Create a Service Account](https://developers.google.com/api-client-library/php/auth/service-accounts#creatinganaccount)
+1. Download the JSON credentials
+1. Set the path to these credentials using the `GOOGLE_APPLICATION_CREDENTIALS` environment variable:
+
+    ```php
+    putenv('GOOGLE_APPLICATION_CREDENTIALS=/path/to/service-account.json');
+    ```
+
+1. Tell the Google client to use your service account credentials to authenticate:
+
+    ```php
+    $client = new Google_Client();
+    $client->useApplicationDefaultCredentials();
+    ```
+
+1. Set the scopes required for the API you are going to call
+
+    ```php
+    $client->addScope(Google_Service_Drive::DRIVE);
+    ```
+
+1. If you have delegated domain-wide access to the service account and you want to impersonate a user account, specify the email address of the user account using the method setSubject:
+
+    ```php
+    $client->setSubject($user_to_impersonate);
+    ```
+
+### Making Requests ###
+
+The classes used to call the API in [google-api-php-client-services](https://github.com/Google/google-api-php-client-services) are autogenerated. They map directly to the JSON requests and responses found in the [APIs Explorer](https://developers.google.com/apis-explorer/#p/).
+
+A JSON request to the [Datastore API](https://developers.google.com/apis-explorer/#p/datastore/v1beta3/datastore.projects.runQuery) would look like this:
+
+```json
+POST https://datastore.googleapis.com/v1beta3/projects/YOUR_PROJECT_ID:runQuery?key=YOUR_API_KEY
+
+{
+    "query": {
+        "kind": [{
+            "name": "Book"
+        }],
+        "order": [{
+            "property": {
+                "name": "title"
+            },
+            "direction": "descending"
+        }],
+        "limit": 10
+    }
+}
+```
+
+Using this library, the same call would look something like this:
+
+```php
+// create the datastore service class
+$datastore = new Google_Service_Datastore($client);
+
+// build the query - this maps directly to the JSON
+$query = new Google_Service_Datastore_Query([
+    'kind' => [
+        [
+            'name' => 'Book',
+        ],
+    ],
+    'order' => [
+        'property' => [
+            'name' => 'title',
+        ],
+        'direction' => 'descending',
+    ],
+    'limit' => 10,
+]);
+
+// build the request and response
+$request = new Google_Service_Datastore_RunQueryRequest(['query' => $query]);
+$response = $datastore->projects->runQuery('YOUR_DATASET_ID', $request);
+```
+
+However, as each property of the JSON API has a corresponding generated class, the above code could also be written like this:
+
+```php
+// create the datastore service class
+$datastore = new Google_Service_Datastore($client);
+
+// build the query
+$request = new Google_Service_Datastore_RunQueryRequest();
+$query = new Google_Service_Datastore_Query();
+//   - set the order
+$order = new Google_Service_Datastore_PropertyOrder();
+$order->setDirection('descending');
+$property = new Google_Service_Datastore_PropertyReference();
+$property->setName('title');
+$order->setProperty($property);
+$query->setOrder([$order]);
+//   - set the kinds
+$kind = new Google_Service_Datastore_KindExpression();
+$kind->setName('Book');
+$query->setKinds([$kind]);
+//   - set the limit
+$query->setLimit(10);
+
+// add the query to the request and make the request
+$request->setQuery($query);
+$response = $datastore->projects->runQuery('YOUR_DATASET_ID', $request);
+```
+
+The method used is a matter of preference, but *it will be very difficult to use this library without first understanding the JSON syntax for the API*, so it is recommended to look at the [APIs Explorer](https://developers.google.com/apis-explorer/#p/) before using any of the services here.
+
+### Making HTTP Requests Directly ###
+
+If Google Authentication is desired for external applications, or a Google API is not available yet in this library, HTTP requests can be made directly.
+
+The `authorize` method returns an authorized [Guzzle Client](http://docs.guzzlephp.org/), so any request made using the client will contain the corresponding authorization.
+
+```php
+// create the Google client
+$client = new Google_Client();
+
+/**
+ * Set your method for authentication. Depending on the API, This could be
+ * directly with an access token, API key, or (recommended) using
+ * Application Default Credentials.
+ */
+$client->useApplicationDefaultCredentials();
+$client->addScope(Google_Service_Plus::PLUS_ME);
+
+// returns a Guzzle HTTP Client
+$httpClient = $client->authorize();
+
+// make an HTTP request
+$response = $httpClient->get('https://www.googleapis.com/plus/v1/people/me');
+```
+
+### Caching ###
+
+It is recommended to use another caching library to improve performance. This can be done by passing a [PSR-6](http://www.php-fig.org/psr/psr-6/) compatible library to the client:
+
+```php
+$cache = new Stash\Pool(new Stash\Driver\FileSystem);
+$client->setCache($cache);
+```
+
+In this example we use [StashPHP](http://www.stashphp.com/). Add this to your project with composer:
+
+```
+composer require tedivm/stash
+```
+
+### Updating Tokens ###
+
+When using [Refresh Tokens](https://developers.google.com/identity/protocols/OAuth2InstalledApp#refresh) or [Service Account Credentials](https://developers.google.com/identity/protocols/OAuth2ServiceAccount#overview), it may be useful to perform some action when a new access token is granted. To do this, pass a callable to the `setTokenCallback` method on the client:
+
+```php
+$logger = new Monolog\Logger;
+$tokenCallback = function ($cacheKey, $accessToken) use ($logger) {
+  $logger->debug(sprintf('new access token received at cache key %s', $cacheKey));
+};
+$client->setTokenCallback($tokenCallback);
+```
+
+### Debugging Your HTTP Request using Charles ###
+
+It is often very useful to debug your API calls by viewing the raw HTTP request. This library supports the use of [Charles Web Proxy](https://www.charlesproxy.com/documentation/getting-started/). Download and run Charles, and then capture all HTTP traffic through Charles with the following code:
+
+```php
+// FOR DEBUGGING ONLY
+$httpClient = new GuzzleHttp\Client([
+    'proxy' => 'localhost:8888', // by default, Charles runs on localhost port 8888
+    'verify' => false, // otherwise HTTPS requests will fail.
+]);
+
+$client = new Google_Client();
+$client->setHttpClient($httpClient);
+```
+
+Now all calls made by this library will appear in the Charles UI.
+
+One additional step is required in Charles to view SSL requests. Go to **Charles > Proxy > SSL Proxying Settings** and add the domain you'd like captured. In the case of the Google APIs, this is usually `*.googleapis.com`.
+
+### Service Specific Examples ###
+
+YouTube: https://github.com/youtube/api-samples/tree/master/php
+
+## How Do I Contribute? ##
+
+Please see the [contributing](CONTRIBUTING.md) page for more information. In particular, we love pull requests - but please make sure to sign the [contributor license agreement](https://developers.google.com/api-client-library/php/contribute).
+
+## Frequently Asked Questions ##
+
+### What do I do if something isn't working? ###
+
+For support with the library the best place to ask is via the google-api-php-client tag on StackOverflow: http://stackoverflow.com/questions/tagged/google-api-php-client
+
+If there is a specific bug with the library, please [file a issue](https://github.com/google/google-api-php-client/issues) in the Github issues tracker, including an example of the failing code and any specific errors retrieved. Feature requests can also be filed, as long as they are core library requests, and not-API specific: for those, refer to the documentation for the individual APIs for the best place to file requests. Please try to provide a clear statement of the problem that the feature would address.
+
+### I want an example of X! ###
+
+If X is a feature of the library, file away! If X is an example of using a specific service, the best place to go is to the teams for those specific APIs - our preference is to link to their examples rather than add them to the library, as they can then pin to specific versions of the library. If you have any examples for other APIs, let us know and we will happily add a link to the README above!
+
+### Why do you still support 5.2? ###
+
+When we started working on the 1.0.0 branch we knew there were several fundamental issues to fix with the 0.6 releases of the library. At that time we looked at the usage of the library, and other related projects, and determined that there was still a large and active base of PHP 5.2 installs. You can see this in statistics such as the PHP versions chart in the WordPress stats: http://wordpress.org/about/stats/. We will keep looking at the types of usage we see, and try to take advantage of newer PHP features where possible.
+
+### Why does Google_..._Service have weird names? ###
+
+The _Service classes are generally automatically generated from the API discovery documents: https://developers.google.com/discovery/. Sometimes new features are added to APIs with unusual names, which can cause some unexpected or non-standard style naming in the PHP classes.
+
+### How do I deal with non-JSON response types? ###
+
+Some services return XML or similar by default, rather than JSON, which is what the library supports. You can request a JSON response by adding an 'alt' argument to optional params that is normally the last argument to a method call:
+
+```
+$opt_params = array(
+  'alt' => "json"
+);
+```
+
+### How do I set a field to null? ###
+
+The library strips out nulls from the objects sent to the Google APIs as its the default value of all of the uninitialized properties. To work around this, set the field you want to null to `Google_Model::NULL_VALUE`. This is a placeholder that will be replaced with a true null when sent over the wire.
+
+## Code Quality ##
+
+Run the PHPUnit tests with PHPUnit. You can configure an API key and token in BaseTest.php to run all calls, but this will require some setup on the Google Developer Console.
+
+    phpunit tests/
+
+### Coding Style
+
+To check for coding style violations, run
+
+```
+vendor/bin/phpcs src --standard=style/ruleset.xml -np
+```
+
+To automatically fix (fixable) coding style violations, run
+
+```
+vendor/bin/phpcbf src --standard=style/ruleset.xml
+```
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/composer.json b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/composer.json
new file mode 100644
index 0000000..55129fd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/composer.json
@@ -0,0 +1,41 @@
+{
+    "name": "google/apiclient",
+    "type": "library",
+    "description": "Client library for Google APIs",
+    "keywords": ["google"],
+    "homepage": "http://developers.google.com/api-client-library/php",
+    "license": "Apache-2.0",
+    "require": {
+        "php": ">=5.4",
+        "google/auth": "^1.0",
+        "google/apiclient-services": "~0.13",
+        "firebase/php-jwt": "~2.0|~3.0|~4.0|~5.0",
+        "monolog/monolog": "^1.17",
+        "phpseclib/phpseclib": "~0.3.10|~2.0",
+        "guzzlehttp/guzzle": "~5.3.1|~6.0",
+        "guzzlehttp/psr7": "^1.2"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "~4",
+        "squizlabs/php_codesniffer": "~2.3",
+        "symfony/dom-crawler": "~2.1",
+        "symfony/css-selector": "~2.1",
+        "cache/filesystem-adapter": "^0.3.2"
+    },
+    "suggest": {
+        "cache/filesystem-adapter": "For caching certs and tokens (using Google_Client::setCache)"
+    },
+    "autoload": {
+        "psr-0": {
+            "Google_": "src/"
+        },
+        "classmap": [
+            "src/Google/Service/"
+        ]
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.x-dev"
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AccessToken/Revoke.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AccessToken/Revoke.php
new file mode 100644
index 0000000..29eb3fb
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AccessToken/Revoke.php
@@ -0,0 +1,78 @@
+<?php
+
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use Google\Auth\HttpHandler\HttpHandlerFactory;
+use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Psr7;
+use GuzzleHttp\Psr7\Request;
+
+/**
+ * Wrapper around Google Access Tokens which provides convenience functions
+ *
+ */
+class Google_AccessToken_Revoke
+{
+  /**
+   * @var GuzzleHttp\ClientInterface The http client
+   */
+  private $http;
+
+  /**
+   * Instantiates the class, but does not initiate the login flow, leaving it
+   * to the discretion of the caller.
+   */
+  public function __construct(ClientInterface $http = null)
+  {
+    $this->http = $http;
+  }
+
+  /**
+   * Revoke an OAuth2 access token or refresh token. This method will revoke the current access
+   * token, if a token isn't provided.
+   *
+   * @param string|array $token The token (access token or a refresh token) that should be revoked.
+   * @return boolean Returns True if the revocation was successful, otherwise False.
+   */
+  public function revokeToken($token)
+  {
+    if (is_array($token)) {
+      if (isset($token['refresh_token'])) {
+        $token = $token['refresh_token'];
+      } else {
+        $token = $token['access_token'];
+      }
+    }
+
+    $body = Psr7\stream_for(http_build_query(array('token' => $token)));
+    $request = new Request(
+        'POST',
+        Google_Client::OAUTH2_REVOKE_URI,
+        [
+          'Cache-Control' => 'no-store',
+          'Content-Type'  => 'application/x-www-form-urlencoded',
+        ],
+        $body
+    );
+
+    $httpHandler = HttpHandlerFactory::build($this->http);
+
+    $response = $httpHandler($request);
+
+    return $response->getStatusCode() == 200;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AccessToken/Verify.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AccessToken/Verify.php
new file mode 100644
index 0000000..33f1179
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AccessToken/Verify.php
@@ -0,0 +1,272 @@
+<?php
+
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use Firebase\JWT\ExpiredException as ExpiredExceptionV3;
+use Firebase\JWT\SignatureInvalidException;
+use GuzzleHttp\Client;
+use GuzzleHttp\ClientInterface;
+use Psr\Cache\CacheItemPoolInterface;
+use Google\Auth\Cache\MemoryCacheItemPool;
+use Stash\Driver\FileSystem;
+use Stash\Pool;
+
+/**
+ * Wrapper around Google Access Tokens which provides convenience functions
+ *
+ */
+class Google_AccessToken_Verify
+{
+  const FEDERATED_SIGNON_CERT_URL = 'https://www.googleapis.com/oauth2/v3/certs';
+  const OAUTH2_ISSUER = 'accounts.google.com';
+  const OAUTH2_ISSUER_HTTPS = 'https://accounts.google.com';
+
+  /**
+   * @var GuzzleHttp\ClientInterface The http client
+   */
+  private $http;
+
+  /**
+   * @var Psr\Cache\CacheItemPoolInterface cache class
+   */
+  private $cache;
+
+  /**
+   * Instantiates the class, but does not initiate the login flow, leaving it
+   * to the discretion of the caller.
+   */
+  public function __construct(
+      ClientInterface $http = null,
+      CacheItemPoolInterface $cache = null,
+      $jwt = null
+  ) {
+    if (null === $http) {
+      $http = new Client();
+    }
+
+    if (null === $cache) {
+      $cache = new MemoryCacheItemPool;
+    }
+
+    $this->http = $http;
+    $this->cache = $cache;
+    $this->jwt = $jwt ?: $this->getJwtService();
+  }
+
+  /**
+   * Verifies an id token and returns the authenticated apiLoginTicket.
+   * Throws an exception if the id token is not valid.
+   * The audience parameter can be used to control which id tokens are
+   * accepted.  By default, the id token must have been issued to this OAuth2 client.
+   *
+   * @param $audience
+   * @return array the token payload, if successful
+   */
+  public function verifyIdToken($idToken, $audience = null)
+  {
+    if (empty($idToken)) {
+      throw new LogicException('id_token cannot be null');
+    }
+
+    // set phpseclib constants if applicable
+    $this->setPhpsecConstants();
+
+    // Check signature
+    $certs = $this->getFederatedSignOnCerts();
+    foreach ($certs as $cert) {
+      $bigIntClass = $this->getBigIntClass();
+      $rsaClass = $this->getRsaClass();
+      $modulus = new $bigIntClass($this->jwt->urlsafeB64Decode($cert['n']), 256);
+      $exponent = new $bigIntClass($this->jwt->urlsafeB64Decode($cert['e']), 256);
+
+      $rsa = new $rsaClass();
+      $rsa->loadKey(array('n' => $modulus, 'e' => $exponent));
+
+      try {
+        $payload = $this->jwt->decode(
+            $idToken,
+            $rsa->getPublicKey(),
+            array('RS256')
+        );
+
+        if (property_exists($payload, 'aud')) {
+          if ($audience && $payload->aud != $audience) {
+            return false;
+          }
+        }
+
+        // support HTTP and HTTPS issuers
+        // @see https://developers.google.com/identity/sign-in/web/backend-auth
+        $issuers = array(self::OAUTH2_ISSUER, self::OAUTH2_ISSUER_HTTPS);
+        if (!isset($payload->iss) || !in_array($payload->iss, $issuers)) {
+          return false;
+        }
+
+        return (array) $payload;
+      } catch (ExpiredException $e) {
+        return false;
+      } catch (ExpiredExceptionV3 $e) {
+        return false;
+      } catch (SignatureInvalidException $e) {
+        // continue
+      } catch (DomainException $e) {
+        // continue
+      }
+    }
+
+    return false;
+  }
+
+  private function getCache()
+  {
+    return $this->cache;
+  }
+
+  /**
+   * Retrieve and cache a certificates file.
+   *
+   * @param $url string location
+   * @throws Google_Exception
+   * @return array certificates
+   */
+  private function retrieveCertsFromLocation($url)
+  {
+    // If we're retrieving a local file, just grab it.
+    if (0 !== strpos($url, 'http')) {
+      if (!$file = file_get_contents($url)) {
+        throw new Google_Exception(
+            "Failed to retrieve verification certificates: '" .
+            $url . "'."
+        );
+      }
+
+      return json_decode($file, true);
+    }
+
+    $response = $this->http->get($url);
+
+    if ($response->getStatusCode() == 200) {
+      return json_decode((string) $response->getBody(), true);
+    }
+    throw new Google_Exception(
+        sprintf(
+            'Failed to retrieve verification certificates: "%s".',
+            $response->getBody()->getContents()
+        ),
+        $response->getStatusCode()
+    );
+  }
+
+  // Gets federated sign-on certificates to use for verifying identity tokens.
+  // Returns certs as array structure, where keys are key ids, and values
+  // are PEM encoded certificates.
+  private function getFederatedSignOnCerts()
+  {
+    $certs = null;
+    if ($cache = $this->getCache()) {
+      $cacheItem = $cache->getItem('federated_signon_certs_v3', 3600);
+      $certs = $cacheItem->get();
+    }
+
+
+    if (!$certs) {
+      $certs = $this->retrieveCertsFromLocation(
+          self::FEDERATED_SIGNON_CERT_URL
+      );
+
+      if ($cache) {
+        $cacheItem->set($certs);
+        $cache->save($cacheItem);
+      }
+    }
+
+    if (!isset($certs['keys'])) {
+      throw new InvalidArgumentException(
+          'federated sign-on certs expects "keys" to be set'
+      );
+    }
+
+    return $certs['keys'];
+  }
+
+  private function getJwtService()
+  {
+    $jwtClass = 'JWT';
+    if (class_exists('\Firebase\JWT\JWT')) {
+      $jwtClass = 'Firebase\JWT\JWT';
+    }
+
+    if (property_exists($jwtClass, 'leeway')) {
+      // adds 1 second to JWT leeway
+      // @see https://github.com/google/google-api-php-client/issues/827
+      $jwtClass::$leeway = 1;
+    }
+
+    return new $jwtClass;
+  }
+
+  private function getRsaClass()
+  {
+    if (class_exists('phpseclib\Crypt\RSA')) {
+      return 'phpseclib\Crypt\RSA';
+    }
+
+    return 'Crypt_RSA';
+  }
+
+  private function getBigIntClass()
+  {
+    if (class_exists('phpseclib\Math\BigInteger')) {
+      return 'phpseclib\Math\BigInteger';
+    }
+
+    return 'Math_BigInteger';
+  }
+
+  private function getOpenSslConstant()
+  {
+    if (class_exists('phpseclib\Crypt\RSA')) {
+      return 'phpseclib\Crypt\RSA::MODE_OPENSSL';
+    }
+
+    if (class_exists('Crypt_RSA')) {
+      return 'CRYPT_RSA_MODE_OPENSSL';
+    }
+
+    throw new \Exception('Cannot find RSA class');
+  }
+
+  /**
+   * phpseclib calls "phpinfo" by default, which requires special
+   * whitelisting in the AppEngine VM environment. This function
+   * sets constants to bypass the need for phpseclib to check phpinfo
+   *
+   * @see phpseclib/Math/BigInteger
+   * @see https://github.com/GoogleCloudPlatform/getting-started-php/issues/85
+   */
+  private function setPhpsecConstants()
+  {
+    if (filter_var(getenv('GAE_VM'), FILTER_VALIDATE_BOOLEAN)) {
+      if (!defined('MATH_BIGINTEGER_OPENSSL_ENABLED')) {
+        define('MATH_BIGINTEGER_OPENSSL_ENABLED', true);
+      }
+      if (!defined('CRYPT_RSA_MODE')) {
+        define('CRYPT_RSA_MODE', constant($this->getOpenSslConstant()));
+      }
+    }
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AuthHandler/AuthHandlerFactory.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AuthHandler/AuthHandlerFactory.php
new file mode 100644
index 0000000..f1a3229
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AuthHandler/AuthHandlerFactory.php
@@ -0,0 +1,42 @@
+<?php
+/**
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use GuzzleHttp\Client;
+use GuzzleHttp\ClientInterface;
+
+class Google_AuthHandler_AuthHandlerFactory
+{
+  /**
+   * Builds out a default http handler for the installed version of guzzle.
+   *
+   * @return Google_AuthHandler_Guzzle5AuthHandler|Google_AuthHandler_Guzzle6AuthHandler
+   * @throws Exception
+   */
+  public static function build($cache = null, array $cacheConfig = [])
+  {
+    $version = ClientInterface::VERSION;
+
+    switch ($version[0]) {
+      case '5':
+        return new Google_AuthHandler_Guzzle5AuthHandler($cache, $cacheConfig);
+      case '6':
+        return new Google_AuthHandler_Guzzle6AuthHandler($cache, $cacheConfig);
+      default:
+        throw new Exception('Version not supported');
+    }
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AuthHandler/Guzzle5AuthHandler.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AuthHandler/Guzzle5AuthHandler.php
new file mode 100644
index 0000000..4e4a8d6
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AuthHandler/Guzzle5AuthHandler.php
@@ -0,0 +1,99 @@
+<?php
+
+use Google\Auth\CredentialsLoader;
+use Google\Auth\HttpHandler\HttpHandlerFactory;
+use Google\Auth\FetchAuthTokenCache;
+use Google\Auth\Subscriber\AuthTokenSubscriber;
+use Google\Auth\Subscriber\ScopedAccessTokenSubscriber;
+use Google\Auth\Subscriber\SimpleSubscriber;
+use GuzzleHttp\Client;
+use GuzzleHttp\ClientInterface;
+use Psr\Cache\CacheItemPoolInterface;
+
+/**
+*
+*/
+class Google_AuthHandler_Guzzle5AuthHandler
+{
+  protected $cache;
+  protected $cacheConfig;
+
+  public function __construct(CacheItemPoolInterface $cache = null, array $cacheConfig = [])
+  {
+    $this->cache = $cache;
+    $this->cacheConfig = $cacheConfig;
+  }
+
+  public function attachCredentials(
+      ClientInterface $http,
+      CredentialsLoader $credentials,
+      callable $tokenCallback = null
+  ) {
+    // use the provided cache
+    if ($this->cache) {
+      $credentials = new FetchAuthTokenCache(
+          $credentials,
+          $this->cacheConfig,
+          $this->cache
+      );
+    }
+    // if we end up needing to make an HTTP request to retrieve credentials, we
+    // can use our existing one, but we need to throw exceptions so the error
+    // bubbles up.
+    $authHttp = $this->createAuthHttp($http);
+    $authHttpHandler = HttpHandlerFactory::build($authHttp);
+    $subscriber = new AuthTokenSubscriber(
+        $credentials,
+        $authHttpHandler,
+        $tokenCallback
+    );
+
+    $http->setDefaultOption('auth', 'google_auth');
+    $http->getEmitter()->attach($subscriber);
+
+    return $http;
+  }
+
+  public function attachToken(ClientInterface $http, array $token, array $scopes)
+  {
+    $tokenFunc = function ($scopes) use ($token) {
+      return $token['access_token'];
+    };
+
+    $subscriber = new ScopedAccessTokenSubscriber(
+        $tokenFunc,
+        $scopes,
+        $this->cacheConfig,
+        $this->cache
+    );
+
+    $http->setDefaultOption('auth', 'scoped');
+    $http->getEmitter()->attach($subscriber);
+
+    return $http;
+  }
+
+  public function attachKey(ClientInterface $http, $key)
+  {
+    $subscriber = new SimpleSubscriber(['key' => $key]);
+
+    $http->setDefaultOption('auth', 'simple');
+    $http->getEmitter()->attach($subscriber);
+
+    return $http;
+  }
+
+  private function createAuthHttp(ClientInterface $http)
+  {
+    return new Client(
+        [
+          'base_url' => $http->getBaseUrl(),
+          'defaults' => [
+            'exceptions' => true,
+            'verify' => $http->getDefaultOption('verify'),
+            'proxy' => $http->getDefaultOption('proxy'),
+          ]
+        ]
+    );
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AuthHandler/Guzzle6AuthHandler.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AuthHandler/Guzzle6AuthHandler.php
new file mode 100644
index 0000000..fcdfb3b
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/AuthHandler/Guzzle6AuthHandler.php
@@ -0,0 +1,106 @@
+<?php
+
+use Google\Auth\CredentialsLoader;
+use Google\Auth\HttpHandler\HttpHandlerFactory;
+use Google\Auth\FetchAuthTokenCache;
+use Google\Auth\Middleware\AuthTokenMiddleware;
+use Google\Auth\Middleware\ScopedAccessTokenMiddleware;
+use Google\Auth\Middleware\SimpleMiddleware;
+use GuzzleHttp\Client;
+use GuzzleHttp\ClientInterface;
+use Psr\Cache\CacheItemPoolInterface;
+
+/**
+*
+*/
+class Google_AuthHandler_Guzzle6AuthHandler
+{
+  protected $cache;
+  protected $cacheConfig;
+
+  public function __construct(CacheItemPoolInterface $cache = null, array $cacheConfig = [])
+  {
+    $this->cache = $cache;
+    $this->cacheConfig = $cacheConfig;
+  }
+
+  public function attachCredentials(
+      ClientInterface $http,
+      CredentialsLoader $credentials,
+      callable $tokenCallback = null
+  ) {
+    // use the provided cache
+    if ($this->cache) {
+      $credentials = new FetchAuthTokenCache(
+          $credentials,
+          $this->cacheConfig,
+          $this->cache
+      );
+    }
+    // if we end up needing to make an HTTP request to retrieve credentials, we
+    // can use our existing one, but we need to throw exceptions so the error
+    // bubbles up.
+    $authHttp = $this->createAuthHttp($http);
+    $authHttpHandler = HttpHandlerFactory::build($authHttp);
+    $middleware = new AuthTokenMiddleware(
+        $credentials,
+        $authHttpHandler,
+        $tokenCallback
+    );
+
+    $config = $http->getConfig();
+    $config['handler']->remove('google_auth');
+    $config['handler']->push($middleware, 'google_auth');
+    $config['auth'] = 'google_auth';
+    $http = new Client($config);
+
+    return $http;
+  }
+
+  public function attachToken(ClientInterface $http, array $token, array $scopes)
+  {
+    $tokenFunc = function ($scopes) use ($token) {
+      return $token['access_token'];
+    };
+
+    $middleware = new ScopedAccessTokenMiddleware(
+        $tokenFunc,
+        $scopes,
+        $this->cacheConfig,
+        $this->cache
+    );
+
+    $config = $http->getConfig();
+    $config['handler']->remove('google_auth');
+    $config['handler']->push($middleware, 'google_auth');
+    $config['auth'] = 'scoped';
+    $http = new Client($config);
+
+    return $http;
+  }
+
+  public function attachKey(ClientInterface $http, $key)
+  {
+    $middleware = new SimpleMiddleware(['key' => $key]);
+
+    $config = $http->getConfig();
+    $config['handler']->remove('google_auth');
+    $config['handler']->push($middleware, 'google_auth');
+    $config['auth'] = 'simple';
+    $http = new Client($config);
+
+    return $http;
+  }
+
+  private function createAuthHttp(ClientInterface $http)
+  {
+    return new Client(
+        [
+          'base_uri' => $http->getConfig('base_uri'),
+          'exceptions' => true,
+          'verify' => $http->getConfig('verify'),
+          'proxy' => $http->getConfig('proxy'),
+        ]
+    );
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Client.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Client.php
new file mode 100644
index 0000000..8f83293
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Client.php
@@ -0,0 +1,1118 @@
+<?php
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use Google\Auth\ApplicationDefaultCredentials;
+use Google\Auth\Cache\MemoryCacheItemPool;
+use Google\Auth\CredentialsLoader;
+use Google\Auth\HttpHandler\HttpHandlerFactory;
+use Google\Auth\OAuth2;
+use Google\Auth\Credentials\ServiceAccountCredentials;
+use Google\Auth\Credentials\UserRefreshCredentials;
+use GuzzleHttp\Client;
+use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Ring\Client\StreamHandler;
+use GuzzleHttp\Psr7;
+use Psr\Cache\CacheItemPoolInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Log\LoggerInterface;
+use Monolog\Logger;
+use Monolog\Handler\StreamHandler as MonologStreamHandler;
+use Monolog\Handler\SyslogHandler as MonologSyslogHandler;
+
+/**
+ * The Google API Client
+ * https://github.com/google/google-api-php-client
+ */
+class Google_Client
+{
+  const LIBVER = "2.2.1";
+  const USER_AGENT_SUFFIX = "google-api-php-client/";
+  const OAUTH2_REVOKE_URI = 'https://accounts.google.com/o/oauth2/revoke';
+  const OAUTH2_TOKEN_URI = 'https://www.googleapis.com/oauth2/v4/token';
+  const OAUTH2_AUTH_URL = 'https://accounts.google.com/o/oauth2/auth';
+  const API_BASE_PATH = 'https://www.googleapis.com';
+
+  /**
+   * @var Google\Auth\OAuth2 $auth
+   */
+  private $auth;
+
+  /**
+   * @var GuzzleHttp\ClientInterface $http
+   */
+  private $http;
+
+  /**
+   * @var Psr\Cache\CacheItemPoolInterface $cache
+   */
+  private $cache;
+
+  /**
+   * @var array access token
+   */
+  private $token;
+
+  /**
+   * @var array $config
+   */
+  private $config;
+
+  /**
+   * @var Psr\Log\LoggerInterface $logger
+   */
+  private $logger;
+
+  /**
+   * @var boolean $deferExecution
+   */
+  private $deferExecution = false;
+
+  /** @var array $scopes */
+  // Scopes requested by the client
+  protected $requestedScopes = [];
+
+  /**
+   * Construct the Google Client.
+   *
+   * @param array $config
+   */
+  public function __construct(array $config = array())
+  {
+    $this->config = array_merge(
+        [
+          'application_name' => '',
+
+          // Don't change these unless you're working against a special development
+          // or testing environment.
+          'base_path' => self::API_BASE_PATH,
+
+          // https://developers.google.com/console
+          'client_id' => '',
+          'client_secret' => '',
+          'redirect_uri' => null,
+          'state' => null,
+
+          // Simple API access key, also from the API console. Ensure you get
+          // a Server key, and not a Browser key.
+          'developer_key' => '',
+
+          // For use with Google Cloud Platform
+          // fetch the ApplicationDefaultCredentials, if applicable
+          // @see https://developers.google.com/identity/protocols/application-default-credentials
+          'use_application_default_credentials' => false,
+          'signing_key' => null,
+          'signing_algorithm' => null,
+          'subject' => null,
+
+          // Other OAuth2 parameters.
+          'hd' => '',
+          'prompt' => '',
+          'openid.realm' => '',
+          'include_granted_scopes' => null,
+          'login_hint' => '',
+          'request_visible_actions' => '',
+          'access_type' => 'online',
+          'approval_prompt' => 'auto',
+
+          // Task Runner retry configuration
+          // @see Google_Task_Runner
+          'retry' => array(),
+
+          // cache config for downstream auth caching
+          'cache_config' => [],
+
+          // function to be called when an access token is fetched
+          // follows the signature function ($cacheKey, $accessToken)
+          'token_callback' => null,
+
+          // Service class used in Google_Client::verifyIdToken.
+          // Explicitly pass this in to avoid setting JWT::$leeway
+          'jwt' => null,
+        ],
+        $config
+    );
+  }
+
+  /**
+   * Get a string containing the version of the library.
+   *
+   * @return string
+   */
+  public function getLibraryVersion()
+  {
+    return self::LIBVER;
+  }
+
+  /**
+   * For backwards compatibility
+   * alias for fetchAccessTokenWithAuthCode
+   *
+   * @param $code string code from accounts.google.com
+   * @return array access token
+   * @deprecated
+   */
+  public function authenticate($code)
+  {
+    return $this->fetchAccessTokenWithAuthCode($code);
+  }
+
+  /**
+   * Attempt to exchange a code for an valid authentication token.
+   * Helper wrapped around the OAuth 2.0 implementation.
+   *
+   * @param $code string code from accounts.google.com
+   * @return array access token
+   */
+  public function fetchAccessTokenWithAuthCode($code)
+  {
+    if (strlen($code) == 0) {
+      throw new InvalidArgumentException("Invalid code");
+    }
+
+    $auth = $this->getOAuth2Service();
+    $auth->setCode($code);
+    $auth->setRedirectUri($this->getRedirectUri());
+
+    $httpHandler = HttpHandlerFactory::build($this->getHttpClient());
+    $creds = $auth->fetchAuthToken($httpHandler);
+    if ($creds && isset($creds['access_token'])) {
+      $creds['created'] = time();
+      $this->setAccessToken($creds);
+    }
+
+    return $creds;
+  }
+
+  /**
+   * For backwards compatibility
+   * alias for fetchAccessTokenWithAssertion
+   *
+   * @return array access token
+   * @deprecated
+   */
+  public function refreshTokenWithAssertion()
+  {
+    return $this->fetchAccessTokenWithAssertion();
+  }
+
+  /**
+   * Fetches a fresh access token with a given assertion token.
+   * @param $assertionCredentials optional.
+   * @return array access token
+   */
+  public function fetchAccessTokenWithAssertion(ClientInterface $authHttp = null)
+  {
+    if (!$this->isUsingApplicationDefaultCredentials()) {
+      throw new DomainException(
+          'set the JSON service account credentials using'
+          . ' Google_Client::setAuthConfig or set the path to your JSON file'
+          . ' with the "GOOGLE_APPLICATION_CREDENTIALS" environment variable'
+          . ' and call Google_Client::useApplicationDefaultCredentials to'
+          . ' refresh a token with assertion.'
+      );
+    }
+
+    $this->getLogger()->log(
+        'info',
+        'OAuth2 access token refresh with Signed JWT assertion grants.'
+    );
+
+    $credentials = $this->createApplicationDefaultCredentials();
+
+    $httpHandler = HttpHandlerFactory::build($authHttp);
+    $creds = $credentials->fetchAuthToken($httpHandler);
+    if ($creds && isset($creds['access_token'])) {
+      $creds['created'] = time();
+      $this->setAccessToken($creds);
+    }
+
+    return $creds;
+  }
+
+  /**
+   * For backwards compatibility
+   * alias for fetchAccessTokenWithRefreshToken
+   *
+   * @param string $refreshToken
+   * @return array access token
+   */
+  public function refreshToken($refreshToken)
+  {
+    return $this->fetchAccessTokenWithRefreshToken($refreshToken);
+  }
+
+  /**
+   * Fetches a fresh OAuth 2.0 access token with the given refresh token.
+   * @param string $refreshToken
+   * @return array access token
+   */
+  public function fetchAccessTokenWithRefreshToken($refreshToken = null)
+  {
+    if (null === $refreshToken) {
+      if (!isset($this->token['refresh_token'])) {
+        throw new LogicException(
+            'refresh token must be passed in or set as part of setAccessToken'
+        );
+      }
+      $refreshToken = $this->token['refresh_token'];
+    }
+    $this->getLogger()->info('OAuth2 access token refresh');
+    $auth = $this->getOAuth2Service();
+    $auth->setRefreshToken($refreshToken);
+
+    $httpHandler = HttpHandlerFactory::build($this->getHttpClient());
+    $creds = $auth->fetchAuthToken($httpHandler);
+    if ($creds && isset($creds['access_token'])) {
+      $creds['created'] = time();
+      if (!isset($creds['refresh_token'])) {
+        $creds['refresh_token'] = $refreshToken;
+      }
+      $this->setAccessToken($creds);
+    }
+
+    return $creds;
+  }
+
+  /**
+   * Create a URL to obtain user authorization.
+   * The authorization endpoint allows the user to first
+   * authenticate, and then grant/deny the access request.
+   * @param string|array $scope The scope is expressed as an array or list of space-delimited strings.
+   * @return string
+   */
+  public function createAuthUrl($scope = null)
+  {
+    if (empty($scope)) {
+      $scope = $this->prepareScopes();
+    }
+    if (is_array($scope)) {
+      $scope = implode(' ', $scope);
+    }
+
+    // only accept one of prompt or approval_prompt
+    $approvalPrompt = $this->config['prompt']
+      ? null
+      : $this->config['approval_prompt'];
+
+    // include_granted_scopes should be string "true", string "false", or null
+    $includeGrantedScopes = $this->config['include_granted_scopes'] === null
+      ? null
+      : var_export($this->config['include_granted_scopes'], true);
+
+    $params = array_filter(
+        [
+          'access_type' => $this->config['access_type'],
+          'approval_prompt' => $approvalPrompt,
+          'hd' => $this->config['hd'],
+          'include_granted_scopes' => $includeGrantedScopes,
+          'login_hint' => $this->config['login_hint'],
+          'openid.realm' => $this->config['openid.realm'],
+          'prompt' => $this->config['prompt'],
+          'response_type' => 'code',
+          'scope' => $scope,
+          'state' => $this->config['state'],
+        ]
+    );
+
+    // If the list of scopes contains plus.login, add request_visible_actions
+    // to auth URL.
+    $rva = $this->config['request_visible_actions'];
+    if (strlen($rva) > 0 && false !== strpos($scope, 'plus.login')) {
+        $params['request_visible_actions'] = $rva;
+    }
+
+    $auth = $this->getOAuth2Service();
+
+    return (string) $auth->buildFullAuthorizationUri($params);
+  }
+
+  /**
+   * Adds auth listeners to the HTTP client based on the credentials
+   * set in the Google API Client object
+   *
+   * @param GuzzleHttp\ClientInterface $http the http client object.
+   * @return GuzzleHttp\ClientInterface the http client object
+   */
+  public function authorize(ClientInterface $http = null)
+  {
+    $credentials = null;
+    $token = null;
+    $scopes = null;
+    if (null === $http) {
+      $http = $this->getHttpClient();
+    }
+
+    // These conditionals represent the decision tree for authentication
+    //   1.  Check for Application Default Credentials
+    //   2.  Check for API Key
+    //   3a. Check for an Access Token
+    //   3b. If access token exists but is expired, try to refresh it
+    if ($this->isUsingApplicationDefaultCredentials()) {
+      $credentials = $this->createApplicationDefaultCredentials();
+    } elseif ($token = $this->getAccessToken()) {
+      $scopes = $this->prepareScopes();
+      // add refresh subscriber to request a new token
+      if (isset($token['refresh_token']) && $this->isAccessTokenExpired()) {
+        $credentials = $this->createUserRefreshCredentials(
+            $scopes,
+            $token['refresh_token']
+        );
+      }
+    }
+
+    $authHandler = $this->getAuthHandler();
+
+    if ($credentials) {
+      $callback = $this->config['token_callback'];
+      $http = $authHandler->attachCredentials($http, $credentials, $callback);
+    } elseif ($token) {
+      $http = $authHandler->attachToken($http, $token, (array) $scopes);
+    } elseif ($key = $this->config['developer_key']) {
+      $http = $authHandler->attachKey($http, $key);
+    }
+
+    return $http;
+  }
+
+  /**
+   * Set the configuration to use application default credentials for
+   * authentication
+   *
+   * @see https://developers.google.com/identity/protocols/application-default-credentials
+   * @param boolean $useAppCreds
+   */
+  public function useApplicationDefaultCredentials($useAppCreds = true)
+  {
+    $this->config['use_application_default_credentials'] = $useAppCreds;
+  }
+
+  /**
+   * To prevent useApplicationDefaultCredentials from inappropriately being
+   * called in a conditional
+   *
+   * @see https://developers.google.com/identity/protocols/application-default-credentials
+   */
+  public function isUsingApplicationDefaultCredentials()
+  {
+    return $this->config['use_application_default_credentials'];
+  }
+
+  /**
+   * @param string|array $token
+   * @throws InvalidArgumentException
+   */
+  public function setAccessToken($token)
+  {
+    if (is_string($token)) {
+      if ($json = json_decode($token, true)) {
+        $token = $json;
+      } else {
+        // assume $token is just the token string
+        $token = array(
+          'access_token' => $token,
+        );
+      }
+    }
+    if ($token == null) {
+      throw new InvalidArgumentException('invalid json token');
+    }
+    if (!isset($token['access_token'])) {
+      throw new InvalidArgumentException("Invalid token format");
+    }
+    $this->token = $token;
+  }
+
+  public function getAccessToken()
+  {
+    return $this->token;
+  }
+
+  public function getRefreshToken()
+  {
+    if (isset($this->token['refresh_token'])) {
+      return $this->token['refresh_token'];
+    }
+  }
+
+  /**
+   * Returns if the access_token is expired.
+   * @return bool Returns True if the access_token is expired.
+   */
+  public function isAccessTokenExpired()
+  {
+    if (!$this->token) {
+      return true;
+    }
+
+    $created = 0;
+    if (isset($this->token['created'])) {
+      $created = $this->token['created'];
+    } elseif (isset($this->token['id_token'])) {
+      // check the ID token for "iat"
+      // signature verification is not required here, as we are just
+      // using this for convenience to save a round trip request
+      // to the Google API server
+      $idToken = $this->token['id_token'];
+      if (substr_count($idToken, '.') == 2) {
+        $parts = explode('.', $idToken);
+        $payload = json_decode(base64_decode($parts[1]), true);
+        if ($payload && isset($payload['iat'])) {
+          $created = $payload['iat'];
+        }
+      }
+    }
+
+    // If the token is set to expire in the next 30 seconds.
+    return ($created + ($this->token['expires_in'] - 30)) < time();
+  }
+
+  public function getAuth()
+  {
+    throw new BadMethodCallException(
+        'This function no longer exists. See UPGRADING.md for more information'
+    );
+  }
+
+  public function setAuth($auth)
+  {
+    throw new BadMethodCallException(
+        'This function no longer exists. See UPGRADING.md for more information'
+    );
+  }
+
+  /**
+   * Set the OAuth 2.0 Client ID.
+   * @param string $clientId
+   */
+  public function setClientId($clientId)
+  {
+    $this->config['client_id'] = $clientId;
+  }
+
+  public function getClientId()
+  {
+    return $this->config['client_id'];
+  }
+
+  /**
+   * Set the OAuth 2.0 Client Secret.
+   * @param string $clientSecret
+   */
+  public function setClientSecret($clientSecret)
+  {
+    $this->config['client_secret'] = $clientSecret;
+  }
+
+  public function getClientSecret()
+  {
+    return $this->config['client_secret'];
+  }
+
+  /**
+   * Set the OAuth 2.0 Redirect URI.
+   * @param string $redirectUri
+   */
+  public function setRedirectUri($redirectUri)
+  {
+    $this->config['redirect_uri'] = $redirectUri;
+  }
+
+  public function getRedirectUri()
+  {
+    return $this->config['redirect_uri'];
+  }
+
+  /**
+   * Set OAuth 2.0 "state" parameter to achieve per-request customization.
+   * @see http://tools.ietf.org/html/draft-ietf-oauth-v2-22#section-3.1.2.2
+   * @param string $state
+   */
+  public function setState($state)
+  {
+    $this->config['state'] = $state;
+  }
+
+  /**
+   * @param string $accessType Possible values for access_type include:
+   *  {@code "offline"} to request offline access from the user.
+   *  {@code "online"} to request online access from the user.
+   */
+  public function setAccessType($accessType)
+  {
+    $this->config['access_type'] = $accessType;
+  }
+
+  /**
+   * @param string $approvalPrompt Possible values for approval_prompt include:
+   *  {@code "force"} to force the approval UI to appear.
+   *  {@code "auto"} to request auto-approval when possible. (This is the default value)
+   */
+  public function setApprovalPrompt($approvalPrompt)
+  {
+    $this->config['approval_prompt'] = $approvalPrompt;
+  }
+
+  /**
+   * Set the login hint, email address or sub id.
+   * @param string $loginHint
+   */
+  public function setLoginHint($loginHint)
+  {
+    $this->config['login_hint'] = $loginHint;
+  }
+
+  /**
+   * Set the application name, this is included in the User-Agent HTTP header.
+   * @param string $applicationName
+   */
+  public function setApplicationName($applicationName)
+  {
+    $this->config['application_name'] = $applicationName;
+  }
+
+  /**
+   * If 'plus.login' is included in the list of requested scopes, you can use
+   * this method to define types of app activities that your app will write.
+   * You can find a list of available types here:
+   * @link https://developers.google.com/+/api/moment-types
+   *
+   * @param array $requestVisibleActions Array of app activity types
+   */
+  public function setRequestVisibleActions($requestVisibleActions)
+  {
+    if (is_array($requestVisibleActions)) {
+      $requestVisibleActions = implode(" ", $requestVisibleActions);
+    }
+    $this->config['request_visible_actions'] = $requestVisibleActions;
+  }
+
+  /**
+   * Set the developer key to use, these are obtained through the API Console.
+   * @see http://code.google.com/apis/console-help/#generatingdevkeys
+   * @param string $developerKey
+   */
+  public function setDeveloperKey($developerKey)
+  {
+    $this->config['developer_key'] = $developerKey;
+  }
+
+  /**
+   * Set the hd (hosted domain) parameter streamlines the login process for
+   * Google Apps hosted accounts. By including the domain of the user, you
+   * restrict sign-in to accounts at that domain.
+   * @param $hd string - the domain to use.
+   */
+  public function setHostedDomain($hd)
+  {
+    $this->config['hd'] = $hd;
+  }
+
+  /**
+   * Set the prompt hint. Valid values are none, consent and select_account.
+   * If no value is specified and the user has not previously authorized
+   * access, then the user is shown a consent screen.
+   * @param $prompt string
+   */
+  public function setPrompt($prompt)
+  {
+    $this->config['prompt'] = $prompt;
+  }
+
+  /**
+   * openid.realm is a parameter from the OpenID 2.0 protocol, not from OAuth
+   * 2.0. It is used in OpenID 2.0 requests to signify the URL-space for which
+   * an authentication request is valid.
+   * @param $realm string - the URL-space to use.
+   */
+  public function setOpenidRealm($realm)
+  {
+    $this->config['openid.realm'] = $realm;
+  }
+
+  /**
+   * If this is provided with the value true, and the authorization request is
+   * granted, the authorization will include any previous authorizations
+   * granted to this user/application combination for other scopes.
+   * @param $include boolean - the URL-space to use.
+   */
+  public function setIncludeGrantedScopes($include)
+  {
+    $this->config['include_granted_scopes'] = $include;
+  }
+
+  /**
+   * sets function to be called when an access token is fetched
+   * @param callable $tokenCallback - function ($cacheKey, $accessToken)
+   */
+  public function setTokenCallback(callable $tokenCallback)
+  {
+    $this->config['token_callback'] = $tokenCallback;
+  }
+
+  /**
+   * Revoke an OAuth2 access token or refresh token. This method will revoke the current access
+   * token, if a token isn't provided.
+   *
+   * @param string|null $token The token (access token or a refresh token) that should be revoked.
+   * @return boolean Returns True if the revocation was successful, otherwise False.
+   */
+  public function revokeToken($token = null)
+  {
+    $tokenRevoker = new Google_AccessToken_Revoke(
+        $this->getHttpClient()
+    );
+
+    return $tokenRevoker->revokeToken($token ?: $this->getAccessToken());
+  }
+
+  /**
+   * Verify an id_token. This method will verify the current id_token, if one
+   * isn't provided.
+   *
+   * @throws LogicException
+   * @param string|null $idToken The token (id_token) that should be verified.
+   * @return array|false Returns the token payload as an array if the verification was
+   * successful, false otherwise.
+   */
+  public function verifyIdToken($idToken = null)
+  {
+    $tokenVerifier = new Google_AccessToken_Verify(
+        $this->getHttpClient(),
+        $this->getCache(),
+        $this->config['jwt']
+    );
+
+    if (null === $idToken) {
+      $token = $this->getAccessToken();
+      if (!isset($token['id_token'])) {
+        throw new LogicException(
+            'id_token must be passed in or set as part of setAccessToken'
+        );
+      }
+      $idToken = $token['id_token'];
+    }
+
+    return $tokenVerifier->verifyIdToken(
+        $idToken,
+        $this->getClientId()
+    );
+  }
+
+  /**
+   * Set the scopes to be requested. Must be called before createAuthUrl().
+   * Will remove any previously configured scopes.
+   * @param array $scopes, ie: array('https://www.googleapis.com/auth/plus.login',
+   * 'https://www.googleapis.com/auth/moderator')
+   */
+  public function setScopes($scopes)
+  {
+    $this->requestedScopes = array();
+    $this->addScope($scopes);
+  }
+
+  /**
+   * This functions adds a scope to be requested as part of the OAuth2.0 flow.
+   * Will append any scopes not previously requested to the scope parameter.
+   * A single string will be treated as a scope to request. An array of strings
+   * will each be appended.
+   * @param $scope_or_scopes string|array e.g. "profile"
+   */
+  public function addScope($scope_or_scopes)
+  {
+    if (is_string($scope_or_scopes) && !in_array($scope_or_scopes, $this->requestedScopes)) {
+      $this->requestedScopes[] = $scope_or_scopes;
+    } else if (is_array($scope_or_scopes)) {
+      foreach ($scope_or_scopes as $scope) {
+        $this->addScope($scope);
+      }
+    }
+  }
+
+  /**
+   * Returns the list of scopes requested by the client
+   * @return array the list of scopes
+   *
+   */
+  public function getScopes()
+  {
+     return $this->requestedScopes;
+  }
+
+  /**
+   * @return array
+   * @visible For Testing
+   */
+  public function prepareScopes()
+  {
+    if (empty($this->requestedScopes)) {
+      return null;
+    }
+
+    return implode(' ', $this->requestedScopes);
+  }
+
+  /**
+   * Helper method to execute deferred HTTP requests.
+   *
+   * @param $request Psr\Http\Message\RequestInterface|Google_Http_Batch
+   * @throws Google_Exception
+   * @return object of the type of the expected class or Psr\Http\Message\ResponseInterface.
+   */
+  public function execute(RequestInterface $request, $expectedClass = null)
+  {
+    $request = $request->withHeader(
+        'User-Agent',
+        $this->config['application_name']
+        . " " . self::USER_AGENT_SUFFIX
+        . $this->getLibraryVersion()
+    );
+
+    // call the authorize method
+    // this is where most of the grunt work is done
+    $http = $this->authorize();
+
+    return Google_Http_REST::execute($http, $request, $expectedClass, $this->config['retry']);
+  }
+
+  /**
+   * Declare whether batch calls should be used. This may increase throughput
+   * by making multiple requests in one connection.
+   *
+   * @param boolean $useBatch True if the batch support should
+   * be enabled. Defaults to False.
+   */
+  public function setUseBatch($useBatch)
+  {
+    // This is actually an alias for setDefer.
+    $this->setDefer($useBatch);
+  }
+
+  /**
+   * Are we running in Google AppEngine?
+   * return bool
+   */
+  public function isAppEngine()
+  {
+    return (isset($_SERVER['SERVER_SOFTWARE']) &&
+        strpos($_SERVER['SERVER_SOFTWARE'], 'Google App Engine') !== false);
+  }
+
+  public function setConfig($name, $value)
+  {
+    $this->config[$name] = $value;
+  }
+
+  public function getConfig($name, $default = null)
+  {
+    return isset($this->config[$name]) ? $this->config[$name] : $default;
+  }
+
+  /**
+   * For backwards compatibility
+   * alias for setAuthConfig
+   *
+   * @param string $file the configuration file
+   * @throws Google_Exception
+   * @deprecated
+   */
+  public function setAuthConfigFile($file)
+  {
+    $this->setAuthConfig($file);
+  }
+
+  /**
+   * Set the auth config from new or deprecated JSON config.
+   * This structure should match the file downloaded from
+   * the "Download JSON" button on in the Google Developer
+   * Console.
+   * @param string|array $config the configuration json
+   * @throws Google_Exception
+   */
+  public function setAuthConfig($config)
+  {
+    if (is_string($config)) {
+      if (!file_exists($config)) {
+        throw new InvalidArgumentException('file does not exist');
+      }
+
+      $json = file_get_contents($config);
+
+      if (!$config = json_decode($json, true)) {
+        throw new LogicException('invalid json for auth config');
+      }
+    }
+
+    $key = isset($config['installed']) ? 'installed' : 'web';
+    if (isset($config['type']) && $config['type'] == 'service_account') {
+      // application default credentials
+      $this->useApplicationDefaultCredentials();
+
+      // set the information from the config
+      $this->setClientId($config['client_id']);
+      $this->config['client_email'] = $config['client_email'];
+      $this->config['signing_key'] = $config['private_key'];
+      $this->config['signing_algorithm'] = 'HS256';
+    } elseif (isset($config[$key])) {
+      // old-style
+      $this->setClientId($config[$key]['client_id']);
+      $this->setClientSecret($config[$key]['client_secret']);
+      if (isset($config[$key]['redirect_uris'])) {
+        $this->setRedirectUri($config[$key]['redirect_uris'][0]);
+      }
+    } else {
+      // new-style
+      $this->setClientId($config['client_id']);
+      $this->setClientSecret($config['client_secret']);
+      if (isset($config['redirect_uris'])) {
+        $this->setRedirectUri($config['redirect_uris'][0]);
+      }
+    }
+  }
+
+  /**
+   * Use when the service account has been delegated domain wide access.
+   *
+   * @param string subject an email address account to impersonate
+   */
+  public function setSubject($subject)
+  {
+    $this->config['subject'] = $subject;
+  }
+
+  /**
+   * Declare whether making API calls should make the call immediately, or
+   * return a request which can be called with ->execute();
+   *
+   * @param boolean $defer True if calls should not be executed right away.
+   */
+  public function setDefer($defer)
+  {
+    $this->deferExecution = $defer;
+  }
+
+  /**
+   * Whether or not to return raw requests
+   * @return boolean
+   */
+  public function shouldDefer()
+  {
+    return $this->deferExecution;
+  }
+
+  /**
+   * @return Google\Auth\OAuth2 implementation
+   */
+  public function getOAuth2Service()
+  {
+    if (!isset($this->auth)) {
+      $this->auth = $this->createOAuth2Service();
+    }
+
+    return $this->auth;
+  }
+
+  /**
+   * create a default google auth object
+   */
+  protected function createOAuth2Service()
+  {
+    $auth = new OAuth2(
+        [
+          'clientId'          => $this->getClientId(),
+          'clientSecret'      => $this->getClientSecret(),
+          'authorizationUri'   => self::OAUTH2_AUTH_URL,
+          'tokenCredentialUri' => self::OAUTH2_TOKEN_URI,
+          'redirectUri'       => $this->getRedirectUri(),
+          'issuer'            => $this->config['client_id'],
+          'signingKey'        => $this->config['signing_key'],
+          'signingAlgorithm'  => $this->config['signing_algorithm'],
+        ]
+    );
+
+    return $auth;
+  }
+
+  /**
+   * Set the Cache object
+   * @param Psr\Cache\CacheItemPoolInterface $cache
+   */
+  public function setCache(CacheItemPoolInterface $cache)
+  {
+    $this->cache = $cache;
+  }
+
+  /**
+   * @return Psr\Cache\CacheItemPoolInterface Cache implementation
+   */
+  public function getCache()
+  {
+    if (!$this->cache) {
+      $this->cache = $this->createDefaultCache();
+    }
+
+    return $this->cache;
+  }
+
+  /**
+   * @return Google\Auth\CacheInterface Cache implementation
+   */
+  public function setCacheConfig(array $cacheConfig)
+  {
+    $this->config['cache_config'] = $cacheConfig;
+  }
+
+  /**
+   * Set the Logger object
+   * @param Psr\Log\LoggerInterface $logger
+   */
+  public function setLogger(LoggerInterface $logger)
+  {
+    $this->logger = $logger;
+  }
+
+  /**
+   * @return Psr\Log\LoggerInterface implementation
+   */
+  public function getLogger()
+  {
+    if (!isset($this->logger)) {
+      $this->logger = $this->createDefaultLogger();
+    }
+
+    return $this->logger;
+  }
+
+  protected function createDefaultLogger()
+  {
+    $logger = new Logger('google-api-php-client');
+    if ($this->isAppEngine()) {
+      $handler = new MonologSyslogHandler('app', LOG_USER, Logger::NOTICE);
+    } else {
+      $handler = new MonologStreamHandler('php://stderr', Logger::NOTICE);
+    }
+    $logger->pushHandler($handler);
+
+    return $logger;
+  }
+
+  protected function createDefaultCache()
+  {
+    return new MemoryCacheItemPool;
+  }
+
+  /**
+   * Set the Http Client object
+   * @param GuzzleHttp\ClientInterface $http
+   */
+  public function setHttpClient(ClientInterface $http)
+  {
+    $this->http = $http;
+  }
+
+  /**
+   * @return GuzzleHttp\ClientInterface implementation
+   */
+  public function getHttpClient()
+  {
+    if (null === $this->http) {
+      $this->http = $this->createDefaultHttpClient();
+    }
+
+    return $this->http;
+  }
+
+  protected function createDefaultHttpClient()
+  {
+    $options = ['exceptions' => false];
+
+    $version = ClientInterface::VERSION;
+    if ('5' === $version[0]) {
+      $options = [
+        'base_url' => $this->config['base_path'],
+        'defaults' => $options,
+      ];
+      if ($this->isAppEngine()) {
+        // set StreamHandler on AppEngine by default
+        $options['handler']  = new StreamHandler();
+        $options['defaults']['verify'] = '/etc/ca-certificates.crt';
+      }
+    } else {
+      // guzzle 6
+      $options['base_uri'] = $this->config['base_path'];
+    }
+
+    return new Client($options);
+  }
+
+  private function createApplicationDefaultCredentials()
+  {
+    $scopes = $this->prepareScopes();
+    $sub = $this->config['subject'];
+    $signingKey = $this->config['signing_key'];
+
+    // create credentials using values supplied in setAuthConfig
+    if ($signingKey) {
+      $serviceAccountCredentials = array(
+        'client_id' => $this->config['client_id'],
+        'client_email' => $this->config['client_email'],
+        'private_key' => $signingKey,
+        'type' => 'service_account',
+      );
+      $credentials = CredentialsLoader::makeCredentials($scopes, $serviceAccountCredentials);
+    } else {
+      $credentials = ApplicationDefaultCredentials::getCredentials($scopes);
+    }
+
+    // for service account domain-wide authority (impersonating a user)
+    // @see https://developers.google.com/identity/protocols/OAuth2ServiceAccount
+    if ($sub) {
+      if (!$credentials instanceof ServiceAccountCredentials) {
+        throw new DomainException('domain-wide authority requires service account credentials');
+      }
+
+      $credentials->setSub($sub);
+    }
+
+    return $credentials;
+  }
+
+  protected function getAuthHandler()
+  {
+    // Be very careful using the cache, as the underlying auth library's cache
+    // implementation is naive, and the cache keys do not account for user
+    // sessions.
+    //
+    // @see https://github.com/google/google-api-php-client/issues/821
+    return Google_AuthHandler_AuthHandlerFactory::build(
+        $this->getCache(),
+        $this->config['cache_config']
+    );
+  }
+
+  private function createUserRefreshCredentials($scope, $refreshToken)
+  {
+    $creds = array_filter(
+        array(
+          'client_id' => $this->getClientId(),
+          'client_secret' => $this->getClientSecret(),
+          'refresh_token' => $refreshToken,
+        )
+    );
+
+    return new UserRefreshCredentials($scope, $creds);
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Collection.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Collection.php
new file mode 100644
index 0000000..df8d444
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Collection.php
@@ -0,0 +1,100 @@
+<?php
+
+if (!class_exists('Google_Client')) {
+  require_once __DIR__ . '/autoload.php';
+}
+
+/**
+ * Extension to the regular Google_Model that automatically
+ * exposes the items array for iteration, so you can just
+ * iterate over the object rather than a reference inside.
+ */
+class Google_Collection extends Google_Model implements Iterator, Countable
+{
+  protected $collection_key = 'items';
+
+  public function rewind()
+  {
+    if (isset($this->{$this->collection_key})
+        && is_array($this->{$this->collection_key})) {
+      reset($this->{$this->collection_key});
+    }
+  }
+
+  public function current()
+  {
+    $this->coerceType($this->key());
+    if (is_array($this->{$this->collection_key})) {
+      return current($this->{$this->collection_key});
+    }
+  }
+
+  public function key()
+  {
+    if (isset($this->{$this->collection_key})
+        && is_array($this->{$this->collection_key})) {
+      return key($this->{$this->collection_key});
+    }
+  }
+
+  public function next()
+  {
+    return next($this->{$this->collection_key});
+  }
+
+  public function valid()
+  {
+    $key = $this->key();
+    return $key !== null && $key !== false;
+  }
+
+  public function count()
+  {
+    if (!isset($this->{$this->collection_key})) {
+      return 0;
+    }
+    return count($this->{$this->collection_key});
+  }
+
+  public function offsetExists($offset)
+  {
+    if (!is_numeric($offset)) {
+      return parent::offsetExists($offset);
+    }
+    return isset($this->{$this->collection_key}[$offset]);
+  }
+
+  public function offsetGet($offset)
+  {
+    if (!is_numeric($offset)) {
+      return parent::offsetGet($offset);
+    }
+    $this->coerceType($offset);
+    return $this->{$this->collection_key}[$offset];
+  }
+
+  public function offsetSet($offset, $value)
+  {
+    if (!is_numeric($offset)) {
+      return parent::offsetSet($offset, $value);
+    }
+    $this->{$this->collection_key}[$offset] = $value;
+  }
+
+  public function offsetUnset($offset)
+  {
+    if (!is_numeric($offset)) {
+      return parent::offsetUnset($offset);
+    }
+    unset($this->{$this->collection_key}[$offset]);
+  }
+
+  private function coerceType($offset)
+  {
+    $keyType = $this->keyType($this->collection_key);
+    if ($keyType && !is_object($this->{$this->collection_key}[$offset])) {
+      $this->{$this->collection_key}[$offset] =
+          new $keyType($this->{$this->collection_key}[$offset]);
+    }
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Exception.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Exception.php
new file mode 100644
index 0000000..af80269
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Exception.php
@@ -0,0 +1,20 @@
+<?php
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class Google_Exception extends Exception
+{
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Http/Batch.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Http/Batch.php
new file mode 100644
index 0000000..4c48684
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Http/Batch.php
@@ -0,0 +1,249 @@
+<?php
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use GuzzleHttp\Psr7;
+use GuzzleHttp\Psr7\Request;
+use GuzzleHttp\Psr7\Response;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Class to handle batched requests to the Google API service.
+ */
+class Google_Http_Batch
+{
+  const BATCH_PATH = 'batch';
+
+  private static $CONNECTION_ESTABLISHED_HEADERS = array(
+    "HTTP/1.0 200 Connection established\r\n\r\n",
+    "HTTP/1.1 200 Connection established\r\n\r\n",
+  );
+
+  /** @var string Multipart Boundary. */
+  private $boundary;
+
+  /** @var array service requests to be executed. */
+  private $requests = array();
+
+  /** @var Google_Client */
+  private $client;
+
+  private $rootUrl;
+
+  private $batchPath;
+
+  public function __construct(
+      Google_Client $client,
+      $boundary = false,
+      $rootUrl = null,
+      $batchPath = null
+  ) {
+    $this->client = $client;
+    $this->boundary = $boundary ?: mt_rand();
+    $this->rootUrl = rtrim($rootUrl ?: $this->client->getConfig('base_path'), '/');
+    $this->batchPath = $batchPath ?: self::BATCH_PATH;
+  }
+
+  public function add(RequestInterface $request, $key = false)
+  {
+    if (false == $key) {
+      $key = mt_rand();
+    }
+
+    $this->requests[$key] = $request;
+  }
+
+  public function execute()
+  {
+    $body = '';
+    $classes = array();
+    $batchHttpTemplate = <<<EOF
+--%s
+Content-Type: application/http
+Content-Transfer-Encoding: binary
+MIME-Version: 1.0
+Content-ID: %s
+
+%s
+%s%s
+
+
+EOF;
+
+    /** @var Google_Http_Request $req */
+    foreach ($this->requests as $key => $request) {
+      $firstLine = sprintf(
+          '%s %s HTTP/%s',
+          $request->getMethod(),
+          $request->getRequestTarget(),
+          $request->getProtocolVersion()
+      );
+
+      $content = (string) $request->getBody();
+
+      $headers = '';
+      foreach ($request->getHeaders() as $name => $values) {
+          $headers .= sprintf("%s:%s\r\n", $name, implode(', ', $values));
+      }
+
+      $body .= sprintf(
+          $batchHttpTemplate,
+          $this->boundary,
+          $key,
+          $firstLine,
+          $headers,
+          $content ? "\n".$content : ''
+      );
+
+      $classes['response-' . $key] = $request->getHeaderLine('X-Php-Expected-Class');
+    }
+
+    $body .= "--{$this->boundary}--";
+    $body = trim($body);
+    $url = $this->rootUrl . '/' . $this->batchPath;
+    $headers = array(
+      'Content-Type' => sprintf('multipart/mixed; boundary=%s', $this->boundary),
+      'Content-Length' => strlen($body),
+    );
+
+    $request = new Request(
+        'POST',
+        $url,
+        $headers,
+        $body
+    );
+
+    $response = $this->client->execute($request);
+
+    return $this->parseResponse($response, $classes);
+  }
+
+  public function parseResponse(ResponseInterface $response, $classes = array())
+  {
+    $contentType = $response->getHeaderLine('content-type');
+    $contentType = explode(';', $contentType);
+    $boundary = false;
+    foreach ($contentType as $part) {
+      $part = explode('=', $part, 2);
+      if (isset($part[0]) && 'boundary' == trim($part[0])) {
+        $boundary = $part[1];
+      }
+    }
+
+    $body = (string) $response->getBody();
+    if (!empty($body)) {
+      $body = str_replace("--$boundary--", "--$boundary", $body);
+      $parts = explode("--$boundary", $body);
+      $responses = array();
+      $requests = array_values($this->requests);
+
+      foreach ($parts as $i => $part) {
+        $part = trim($part);
+        if (!empty($part)) {
+          list($rawHeaders, $part) = explode("\r\n\r\n", $part, 2);
+          $headers = $this->parseRawHeaders($rawHeaders);
+
+          $status = substr($part, 0, strpos($part, "\n"));
+          $status = explode(" ", $status);
+          $status = $status[1];
+
+          list($partHeaders, $partBody) = $this->parseHttpResponse($part, false);
+          $response = new Response(
+              $status,
+              $partHeaders,
+              Psr7\stream_for($partBody)
+          );
+
+          // Need content id.
+          $key = $headers['content-id'];
+
+          try {
+            $response = Google_Http_REST::decodeHttpResponse($response, $requests[$i-1]);
+          } catch (Google_Service_Exception $e) {
+            // Store the exception as the response, so successful responses
+            // can be processed.
+            $response = $e;
+          }
+
+          $responses[$key] = $response;
+        }
+      }
+
+      return $responses;
+    }
+
+    return null;
+  }
+
+  private function parseRawHeaders($rawHeaders)
+  {
+    $headers = array();
+    $responseHeaderLines = explode("\r\n", $rawHeaders);
+    foreach ($responseHeaderLines as $headerLine) {
+      if ($headerLine && strpos($headerLine, ':') !== false) {
+        list($header, $value) = explode(': ', $headerLine, 2);
+        $header = strtolower($header);
+        if (isset($headers[$header])) {
+          $headers[$header] .= "\n" . $value;
+        } else {
+          $headers[$header] = $value;
+        }
+      }
+    }
+    return $headers;
+  }
+
+  /**
+   * Used by the IO lib and also the batch processing.
+   *
+   * @param $respData
+   * @param $headerSize
+   * @return array
+   */
+  private function parseHttpResponse($respData, $headerSize)
+  {
+    // check proxy header
+    foreach (self::$CONNECTION_ESTABLISHED_HEADERS as $established_header) {
+      if (stripos($respData, $established_header) !== false) {
+        // existed, remove it
+        $respData = str_ireplace($established_header, '', $respData);
+        // Subtract the proxy header size unless the cURL bug prior to 7.30.0
+        // is present which prevented the proxy header size from being taken into
+        // account.
+        // @TODO look into this
+        // if (!$this->needsQuirk()) {
+        //   $headerSize -= strlen($established_header);
+        // }
+        break;
+      }
+    }
+
+    if ($headerSize) {
+      $responseBody = substr($respData, $headerSize);
+      $responseHeaders = substr($respData, 0, $headerSize);
+    } else {
+      $responseSegments = explode("\r\n\r\n", $respData, 2);
+      $responseHeaders = $responseSegments[0];
+      $responseBody = isset($responseSegments[1]) ? $responseSegments[1] :
+                                                    null;
+    }
+
+    $responseHeaders = $this->parseRawHeaders($responseHeaders);
+
+    return array($responseHeaders, $responseBody);
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Http/MediaFileUpload.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Http/MediaFileUpload.php
new file mode 100644
index 0000000..1ce9bb1
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Http/MediaFileUpload.php
@@ -0,0 +1,351 @@
+<?php
+/**
+ * Copyright 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use GuzzleHttp\Psr7;
+use GuzzleHttp\Psr7\Request;
+use GuzzleHttp\Psr7\Uri;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Manage large file uploads, which may be media but can be any type
+ * of sizable data.
+ */
+class Google_Http_MediaFileUpload
+{
+  const UPLOAD_MEDIA_TYPE = 'media';
+  const UPLOAD_MULTIPART_TYPE = 'multipart';
+  const UPLOAD_RESUMABLE_TYPE = 'resumable';
+
+  /** @var string $mimeType */
+  private $mimeType;
+
+  /** @var string $data */
+  private $data;
+
+  /** @var bool $resumable */
+  private $resumable;
+
+  /** @var int $chunkSize */
+  private $chunkSize;
+
+  /** @var int $size */
+  private $size;
+
+  /** @var string $resumeUri */
+  private $resumeUri;
+
+  /** @var int $progress */
+  private $progress;
+
+  /** @var Google_Client */
+  private $client;
+
+  /** @var Psr\Http\Message\RequestInterface */
+  private $request;
+
+  /** @var string */
+  private $boundary;
+
+  /**
+   * Result code from last HTTP call
+   * @var int
+   */
+  private $httpResultCode;
+
+  /**
+   * @param $mimeType string
+   * @param $data string The bytes you want to upload.
+   * @param $resumable bool
+   * @param bool $chunkSize File will be uploaded in chunks of this many bytes.
+   * only used if resumable=True
+   */
+  public function __construct(
+      Google_Client $client,
+      RequestInterface $request,
+      $mimeType,
+      $data,
+      $resumable = false,
+      $chunkSize = false
+  ) {
+    $this->client = $client;
+    $this->request = $request;
+    $this->mimeType = $mimeType;
+    $this->data = $data;
+    $this->resumable = $resumable;
+    $this->chunkSize = $chunkSize;
+    $this->progress = 0;
+
+    $this->process();
+  }
+
+  /**
+   * Set the size of the file that is being uploaded.
+   * @param $size - int file size in bytes
+   */
+  public function setFileSize($size)
+  {
+    $this->size = $size;
+  }
+
+  /**
+   * Return the progress on the upload
+   * @return int progress in bytes uploaded.
+   */
+  public function getProgress()
+  {
+    return $this->progress;
+  }
+
+  /**
+   * Send the next part of the file to upload.
+   * @param [$chunk] the next set of bytes to send. If false will used $data passed
+   * at construct time.
+   */
+  public function nextChunk($chunk = false)
+  {
+    $resumeUri = $this->getResumeUri();
+
+    if (false == $chunk) {
+      $chunk = substr($this->data, $this->progress, $this->chunkSize);
+    }
+
+    $lastBytePos = $this->progress + strlen($chunk) - 1;
+    $headers = array(
+      'content-range' => "bytes $this->progress-$lastBytePos/$this->size",
+      'content-length' => strlen($chunk),
+      'expect' => '',
+    );
+
+    $request = new Request(
+        'PUT',
+        $resumeUri,
+        $headers,
+        Psr7\stream_for($chunk)
+    );
+
+    return $this->makePutRequest($request);
+  }
+
+  /**
+   * Return the HTTP result code from the last call made.
+   * @return int code
+   */
+  public function getHttpResultCode()
+  {
+    return $this->httpResultCode;
+  }
+
+  /**
+  * Sends a PUT-Request to google drive and parses the response,
+  * setting the appropiate variables from the response()
+  *
+  * @param Google_Http_Request $httpRequest the Reuqest which will be send
+  *
+  * @return false|mixed false when the upload is unfinished or the decoded http response
+  *
+  */
+  private function makePutRequest(RequestInterface $request)
+  {
+    $response = $this->client->execute($request);
+    $this->httpResultCode = $response->getStatusCode();
+
+    if (308 == $this->httpResultCode) {
+      // Track the amount uploaded.
+      $range = $response->getHeaderLine('range');
+      if ($range) {
+        $range_array = explode('-', $range);
+        $this->progress = $range_array[1] + 1;
+      }
+
+      // Allow for changing upload URLs.
+      $location = $response->getHeaderLine('location');
+      if ($location) {
+        $this->resumeUri = $location;
+      }
+
+      // No problems, but upload not complete.
+      return false;
+    }
+
+    return Google_Http_REST::decodeHttpResponse($response, $this->request);
+  }
+
+  /**
+   * Resume a previously unfinished upload
+   * @param $resumeUri the resume-URI of the unfinished, resumable upload.
+   */
+  public function resume($resumeUri)
+  {
+     $this->resumeUri = $resumeUri;
+     $headers = array(
+       'content-range' => "bytes */$this->size",
+       'content-length' => 0,
+     );
+     $httpRequest = new Request(
+         'PUT',
+         $this->resumeUri,
+         $headers
+     );
+
+     return $this->makePutRequest($httpRequest);
+  }
+
+  /**
+   * @return Psr\Http\Message\RequestInterface $request
+   * @visible for testing
+   */
+  private function process()
+  {
+    $this->transformToUploadUrl();
+    $request = $this->request;
+
+    $postBody = '';
+    $contentType = false;
+
+    $meta = (string) $request->getBody();
+    $meta = is_string($meta) ? json_decode($meta, true) : $meta;
+
+    $uploadType = $this->getUploadType($meta);
+    $request = $request->withUri(
+        Uri::withQueryValue($request->getUri(), 'uploadType', $uploadType)
+    );
+
+    $mimeType = $this->mimeType ?: $request->getHeaderLine('content-type');
+
+    if (self::UPLOAD_RESUMABLE_TYPE == $uploadType) {
+      $contentType = $mimeType;
+      $postBody = is_string($meta) ? $meta : json_encode($meta);
+    } else if (self::UPLOAD_MEDIA_TYPE == $uploadType) {
+      $contentType = $mimeType;
+      $postBody = $this->data;
+    } else if (self::UPLOAD_MULTIPART_TYPE == $uploadType) {
+      // This is a multipart/related upload.
+      $boundary = $this->boundary ?: mt_rand();
+      $boundary = str_replace('"', '', $boundary);
+      $contentType = 'multipart/related; boundary=' . $boundary;
+      $related = "--$boundary\r\n";
+      $related .= "Content-Type: application/json; charset=UTF-8\r\n";
+      $related .= "\r\n" . json_encode($meta) . "\r\n";
+      $related .= "--$boundary\r\n";
+      $related .= "Content-Type: $mimeType\r\n";
+      $related .= "Content-Transfer-Encoding: base64\r\n";
+      $related .= "\r\n" . base64_encode($this->data) . "\r\n";
+      $related .= "--$boundary--";
+      $postBody = $related;
+    }
+
+    $request = $request->withBody(Psr7\stream_for($postBody));
+
+    if (isset($contentType) && $contentType) {
+      $request = $request->withHeader('content-type', $contentType);
+    }
+
+    return $this->request = $request;
+  }
+
+  /**
+   * Valid upload types:
+   * - resumable (UPLOAD_RESUMABLE_TYPE)
+   * - media (UPLOAD_MEDIA_TYPE)
+   * - multipart (UPLOAD_MULTIPART_TYPE)
+   * @param $meta
+   * @return string
+   * @visible for testing
+   */
+  public function getUploadType($meta)
+  {
+    if ($this->resumable) {
+      return self::UPLOAD_RESUMABLE_TYPE;
+    }
+
+    if (false == $meta && $this->data) {
+      return self::UPLOAD_MEDIA_TYPE;
+    }
+
+    return self::UPLOAD_MULTIPART_TYPE;
+  }
+
+  public function getResumeUri()
+  {
+    if (null === $this->resumeUri) {
+      $this->resumeUri = $this->fetchResumeUri();
+    }
+
+    return $this->resumeUri;
+  }
+
+  private function fetchResumeUri()
+  {
+    $body = $this->request->getBody();
+    if ($body) {
+      $headers = array(
+        'content-type' => 'application/json; charset=UTF-8',
+        'content-length' => $body->getSize(),
+        'x-upload-content-type' => $this->mimeType,
+        'x-upload-content-length' => $this->size,
+        'expect' => '',
+      );
+      foreach ($headers as $key => $value) {
+        $this->request = $this->request->withHeader($key, $value);
+      }
+    }
+
+    $response = $this->client->execute($this->request, false);
+    $location = $response->getHeaderLine('location');
+    $code = $response->getStatusCode();
+
+    if (200 == $code && true == $location) {
+      return $location;
+    }
+
+    $message = $code;
+    $body = json_decode((string) $this->request->getBody(), true);
+    if (isset($body['error']['errors'])) {
+      $message .= ': ';
+      foreach ($body['error']['errors'] as $error) {
+        $message .= "{$error[domain]}, {$error[message]};";
+      }
+      $message = rtrim($message, ';');
+    }
+
+    $error = "Failed to start the resumable upload (HTTP {$message})";
+    $this->client->getLogger()->error($error);
+
+    throw new Google_Exception($error);
+  }
+
+  private function transformToUploadUrl()
+  {
+    $parts = parse_url((string) $this->request->getUri());
+    if (!isset($parts['path'])) {
+      $parts['path'] = '';
+    }
+    $parts['path'] = '/upload' . $parts['path'];
+    $uri = Uri::fromParts($parts);
+    $this->request = $this->request->withUri($uri);
+  }
+
+  public function setChunkSize($chunkSize)
+  {
+    $this->chunkSize = $chunkSize;
+  }
+
+  public function getRequest()
+  {
+    return $this->request;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Http/REST.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Http/REST.php
new file mode 100644
index 0000000..c2156a2
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Http/REST.php
@@ -0,0 +1,182 @@
+<?php
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use Google\Auth\HttpHandler\HttpHandlerFactory;
+use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Psr7\Response;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * This class implements the RESTful transport of apiServiceRequest()'s
+ */
+class Google_Http_REST
+{
+  /**
+   * Executes a Psr\Http\Message\RequestInterface and (if applicable) automatically retries
+   * when errors occur.
+   *
+   * @param Google_Client $client
+   * @param Psr\Http\Message\RequestInterface $req
+   * @return array decoded result
+   * @throws Google_Service_Exception on server side error (ie: not authenticated,
+   *  invalid or malformed post body, invalid url)
+   */
+  public static function execute(
+      ClientInterface $client,
+      RequestInterface $request,
+      $expectedClass = null,
+      $config = array(),
+      $retryMap = null
+  ) {
+    $runner = new Google_Task_Runner(
+        $config,
+        sprintf('%s %s', $request->getMethod(), (string) $request->getUri()),
+        array(get_class(), 'doExecute'),
+        array($client, $request, $expectedClass)
+    );
+
+    if (null !== $retryMap) {
+      $runner->setRetryMap($retryMap);
+    }
+
+    return $runner->run();
+  }
+
+  /**
+   * Executes a Psr\Http\Message\RequestInterface
+   *
+   * @param Google_Client $client
+   * @param Psr\Http\Message\RequestInterface $request
+   * @return array decoded result
+   * @throws Google_Service_Exception on server side error (ie: not authenticated,
+   *  invalid or malformed post body, invalid url)
+   */
+  public static function doExecute(ClientInterface $client, RequestInterface $request, $expectedClass = null)
+  {
+    try {
+      $httpHandler = HttpHandlerFactory::build($client);
+      $response = $httpHandler($request);
+    } catch (RequestException $e) {
+      // if Guzzle throws an exception, catch it and handle the response
+      if (!$e->hasResponse()) {
+        throw $e;
+      }
+
+      $response = $e->getResponse();
+      // specific checking for Guzzle 5: convert to PSR7 response
+      if ($response instanceof \GuzzleHttp\Message\ResponseInterface) {
+        $response = new Response(
+            $response->getStatusCode(),
+            $response->getHeaders() ?: [],
+            $response->getBody(),
+            $response->getProtocolVersion(),
+            $response->getReasonPhrase()
+        );
+      }
+    }
+
+    return self::decodeHttpResponse($response, $request, $expectedClass);
+  }
+
+  /**
+   * Decode an HTTP Response.
+   * @static
+   * @throws Google_Service_Exception
+   * @param Psr\Http\Message\RequestInterface $response The http response to be decoded.
+   * @param Psr\Http\Message\ResponseInterface $response
+   * @return mixed|null
+   */
+  public static function decodeHttpResponse(
+      ResponseInterface $response,
+      RequestInterface $request = null,
+      $expectedClass = null
+  ) {
+    $code = $response->getStatusCode();
+
+    // retry strategy
+    if (intVal($code) >= 400) {
+      // if we errored out, it should be safe to grab the response body
+      $body = (string) $response->getBody();
+
+      // Check if we received errors, and add those to the Exception for convenience
+      throw new Google_Service_Exception($body, $code, null, self::getResponseErrors($body));
+    }
+
+    // Ensure we only pull the entire body into memory if the request is not
+    // of media type
+    $body = self::decodeBody($response, $request);
+
+    if ($expectedClass = self::determineExpectedClass($expectedClass, $request)) {
+      $json = json_decode($body, true);
+
+      return new $expectedClass($json);
+    }
+
+    return $response;
+  }
+
+  private static function decodeBody(ResponseInterface $response, RequestInterface $request = null)
+  {
+    if (self::isAltMedia($request)) {
+      // don't decode the body, it's probably a really long string
+      return '';
+    }
+
+    return (string) $response->getBody();
+  }
+
+  private static function determineExpectedClass($expectedClass, RequestInterface $request = null)
+  {
+    // "false" is used to explicitly prevent an expected class from being returned
+    if (false === $expectedClass) {
+      return null;
+    }
+
+    // if we don't have a request, we just use what's passed in
+    if (null === $request) {
+      return $expectedClass;
+    }
+
+    // return what we have in the request header if one was not supplied
+    return $expectedClass ?: $request->getHeaderLine('X-Php-Expected-Class');
+  }
+
+  private static function getResponseErrors($body)
+  {
+    $json = json_decode($body, true);
+
+    if (isset($json['error']['errors'])) {
+      return $json['error']['errors'];
+    }
+
+    return null;
+  }
+
+  private static function isAltMedia(RequestInterface $request = null)
+  {
+    if ($request && $qs = $request->getUri()->getQuery()) {
+      parse_str($qs, $query);
+      if (isset($query['alt']) && $query['alt'] == 'media') {
+        return true;
+      }
+    }
+
+    return false;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Model.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Model.php
new file mode 100644
index 0000000..1826260
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Model.php
@@ -0,0 +1,317 @@
+<?php
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * This class defines attributes, valid values, and usage which is generated
+ * from a given json schema.
+ * http://tools.ietf.org/html/draft-zyp-json-schema-03#section-5
+ *
+ */
+class Google_Model implements ArrayAccess
+{
+  /**
+   * If you need to specify a NULL JSON value, use Google_Model::NULL_VALUE
+   * instead - it will be replaced when converting to JSON with a real null.
+   */
+  const NULL_VALUE = "{}gapi-php-null";
+  protected $internal_gapi_mappings = array();
+  protected $modelData = array();
+  protected $processed = array();
+
+  /**
+   * Polymorphic - accepts a variable number of arguments dependent
+   * on the type of the model subclass.
+   */
+  final public function __construct()
+  {
+    if (func_num_args() == 1 && is_array(func_get_arg(0))) {
+      // Initialize the model with the array's contents.
+      $array = func_get_arg(0);
+      $this->mapTypes($array);
+    }
+    $this->gapiInit();
+  }
+
+  /**
+   * Getter that handles passthrough access to the data array, and lazy object creation.
+   * @param string $key Property name.
+   * @return mixed The value if any, or null.
+   */
+  public function __get($key)
+  {
+    $keyType = $this->keyType($key);
+    $keyDataType = $this->dataType($key);
+    if ($keyType && !isset($this->processed[$key])) {
+      if (isset($this->modelData[$key])) {
+        $val = $this->modelData[$key];
+      } elseif ($keyDataType == 'array' || $keyDataType == 'map') {
+        $val = array();
+      } else {
+        $val = null;
+      }
+
+      if ($this->isAssociativeArray($val)) {
+        if ($keyDataType && 'map' == $keyDataType) {
+          foreach ($val as $arrayKey => $arrayItem) {
+              $this->modelData[$key][$arrayKey] =
+                new $keyType($arrayItem);
+          }
+        } else {
+          $this->modelData[$key] = new $keyType($val);
+        }
+      } else if (is_array($val)) {
+        $arrayObject = array();
+        foreach ($val as $arrayIndex => $arrayItem) {
+          $arrayObject[$arrayIndex] = new $keyType($arrayItem);
+        }
+        $this->modelData[$key] = $arrayObject;
+      }
+      $this->processed[$key] = true;
+    }
+
+    return isset($this->modelData[$key]) ? $this->modelData[$key] : null;
+  }
+
+  /**
+   * Initialize this object's properties from an array.
+   *
+   * @param array $array Used to seed this object's properties.
+   * @return void
+   */
+  protected function mapTypes($array)
+  {
+    // Hard initialise simple types, lazy load more complex ones.
+    foreach ($array as $key => $val) {
+      if ($keyType = $this->keyType($key)) {
+        $dataType = $this->dataType($key);
+        if ($dataType == 'array' || $dataType == 'map') {
+          $this->$key = array();
+          foreach ($val as $itemKey => $itemVal) {
+            if ($itemVal instanceof $keyType) {
+              $this->{$key}[$itemKey] = $itemVal;
+            } else {
+              $this->{$key}[$itemKey] = new $keyType($itemVal);
+            }
+          }
+        } elseif ($val instanceof $keyType) {
+          $this->$key = $val;
+        } else {
+          $this->$key = new $keyType($val);
+        }
+        unset($array[$key]);
+      } elseif (property_exists($this, $key)) {
+          $this->$key = $val;
+          unset($array[$key]);
+      } elseif (property_exists($this, $camelKey = $this->camelCase($key))) {
+          // This checks if property exists as camelCase, leaving it in array as snake_case
+          // in case of backwards compatibility issues.
+          $this->$camelKey = $val;
+      }
+    }
+    $this->modelData = $array;
+  }
+
+  /**
+   * Blank initialiser to be used in subclasses to do  post-construction initialisation - this
+   * avoids the need for subclasses to have to implement the variadics handling in their
+   * constructors.
+   */
+  protected function gapiInit()
+  {
+    return;
+  }
+
+  /**
+   * Create a simplified object suitable for straightforward
+   * conversion to JSON. This is relatively expensive
+   * due to the usage of reflection, but shouldn't be called
+   * a whole lot, and is the most straightforward way to filter.
+   */
+  public function toSimpleObject()
+  {
+    $object = new stdClass();
+
+    // Process all other data.
+    foreach ($this->modelData as $key => $val) {
+      $result = $this->getSimpleValue($val);
+      if ($result !== null) {
+        $object->$key = $this->nullPlaceholderCheck($result);
+      }
+    }
+
+    // Process all public properties.
+    $reflect = new ReflectionObject($this);
+    $props = $reflect->getProperties(ReflectionProperty::IS_PUBLIC);
+    foreach ($props as $member) {
+      $name = $member->getName();
+      $result = $this->getSimpleValue($this->$name);
+      if ($result !== null) {
+        $name = $this->getMappedName($name);
+        $object->$name = $this->nullPlaceholderCheck($result);
+      }
+    }
+
+    return $object;
+  }
+
+  /**
+   * Handle different types of values, primarily
+   * other objects and map and array data types.
+   */
+  private function getSimpleValue($value)
+  {
+    if ($value instanceof Google_Model) {
+      return $value->toSimpleObject();
+    } else if (is_array($value)) {
+      $return = array();
+      foreach ($value as $key => $a_value) {
+        $a_value = $this->getSimpleValue($a_value);
+        if ($a_value !== null) {
+          $key = $this->getMappedName($key);
+          $return[$key] = $this->nullPlaceholderCheck($a_value);
+        }
+      }
+      return $return;
+    }
+    return $value;
+  }
+
+  /**
+   * Check whether the value is the null placeholder and return true null.
+   */
+  private function nullPlaceholderCheck($value)
+  {
+    if ($value === self::NULL_VALUE) {
+      return null;
+    }
+    return $value;
+  }
+
+  /**
+   * If there is an internal name mapping, use that.
+   */
+  private function getMappedName($key)
+  {
+    if (isset($this->internal_gapi_mappings, $this->internal_gapi_mappings[$key])) {
+      $key = $this->internal_gapi_mappings[$key];
+    }
+    return $key;
+  }
+
+  /**
+   * Returns true only if the array is associative.
+   * @param array $array
+   * @return bool True if the array is associative.
+   */
+  protected function isAssociativeArray($array)
+  {
+    if (!is_array($array)) {
+      return false;
+    }
+    $keys = array_keys($array);
+    foreach ($keys as $key) {
+      if (is_string($key)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Verify if $obj is an array.
+   * @throws Google_Exception Thrown if $obj isn't an array.
+   * @param array $obj Items that should be validated.
+   * @param string $method Method expecting an array as an argument.
+   */
+  public function assertIsArray($obj, $method)
+  {
+    if ($obj && !is_array($obj)) {
+      throw new Google_Exception(
+          "Incorrect parameter type passed to $method(). Expected an array."
+      );
+    }
+  }
+
+  public function offsetExists($offset)
+  {
+    return isset($this->$offset) || isset($this->modelData[$offset]);
+  }
+
+  public function offsetGet($offset)
+  {
+    return isset($this->$offset) ?
+        $this->$offset :
+        $this->__get($offset);
+  }
+
+  public function offsetSet($offset, $value)
+  {
+    if (property_exists($this, $offset)) {
+      $this->$offset = $value;
+    } else {
+      $this->modelData[$offset] = $value;
+      $this->processed[$offset] = true;
+    }
+  }
+
+  public function offsetUnset($offset)
+  {
+    unset($this->modelData[$offset]);
+  }
+
+  protected function keyType($key)
+  {
+    $keyType = $key . "Type";
+
+    // ensure keyType is a valid class
+    if (property_exists($this, $keyType) && class_exists($this->$keyType)) {
+      return $this->$keyType;
+    }
+  }
+
+  protected function dataType($key)
+  {
+    $dataType = $key . "DataType";
+
+    if (property_exists($this, $dataType)) {
+      return $this->$dataType;
+    }
+  }
+
+  public function __isset($key)
+  {
+    return isset($this->modelData[$key]);
+  }
+
+  public function __unset($key)
+  {
+    unset($this->modelData[$key]);
+  }
+
+  /**
+   * Convert a string to camelCase
+   * @param  string $value
+   * @return string
+   */
+  private function camelCase($value)
+  {
+    $value = ucwords(str_replace(array('-', '_'), ' ', $value));
+    $value = str_replace(' ', '', $value);
+    $value[0] = strtolower($value[0]);
+    return $value;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service.php
new file mode 100644
index 0000000..d3fd3b4
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service.php
@@ -0,0 +1,56 @@
+<?php
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class Google_Service
+{
+  public $batchPath;
+  public $rootUrl;
+  public $version;
+  public $servicePath;
+  public $availableScopes;
+  public $resource;
+  private $client;
+
+  public function __construct(Google_Client $client)
+  {
+    $this->client = $client;
+  }
+
+  /**
+   * Return the associated Google_Client class.
+   * @return Google_Client
+   */
+  public function getClient()
+  {
+    return $this->client;
+  }
+
+  /**
+   * Create a new HTTP Batch handler for this service
+   *
+   * @return Google_Http_Batch
+   */
+  public function createBatch()
+  {
+    return new Google_Http_Batch(
+        $this->client,
+        false,
+        $this->rootUrl,
+        $this->batchPath
+    );
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service/Exception.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service/Exception.php
new file mode 100644
index 0000000..abfd3f7
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service/Exception.php
@@ -0,0 +1,68 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class Google_Service_Exception extends Google_Exception
+{
+  /**
+   * Optional list of errors returned in a JSON body of an HTTP error response.
+   */
+  protected $errors = array();
+
+  /**
+   * Override default constructor to add the ability to set $errors and a retry
+   * map.
+   *
+   * @param string $message
+   * @param int $code
+   * @param Exception|null $previous
+   * @param [{string, string}] errors List of errors returned in an HTTP
+   * response.  Defaults to [].
+   * @param array|null $retryMap Map of errors with retry counts.
+   */
+  public function __construct(
+      $message,
+      $code = 0,
+      Exception $previous = null,
+      $errors = array()
+  ) {
+    if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
+      parent::__construct($message, $code, $previous);
+    } else {
+      parent::__construct($message, $code);
+    }
+
+    $this->errors = $errors;
+  }
+
+  /**
+   * An example of the possible errors returned.
+   *
+   * {
+   *   "domain": "global",
+   *   "reason": "authError",
+   *   "message": "Invalid Credentials",
+   *   "locationType": "header",
+   *   "location": "Authorization",
+   * }
+   *
+   * @return [{string, string}] List of errors return in an HTTP response or [].
+   */
+  public function getErrors()
+  {
+    return $this->errors;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service/README.md b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service/README.md
new file mode 100644
index 0000000..0de4862
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service/README.md
@@ -0,0 +1,5 @@
+# Google API Client Services
+
+Google API Client Service classes have been moved to the 
+[google-api-php-client-services](https://github.com/google/google-api-php-client-services) 
+repository. 
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service/Resource.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service/Resource.php
new file mode 100644
index 0000000..fee039b
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Service/Resource.php
@@ -0,0 +1,296 @@
+<?php
+/**
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use GuzzleHttp\Psr7\Request;
+
+/**
+ * Implements the actual methods/resources of the discovered Google API using magic function
+ * calling overloading (__call()), which on call will see if the method name (plus.activities.list)
+ * is available in this service, and if so construct an apiHttpRequest representing it.
+ *
+ */
+class Google_Service_Resource
+{
+  // Valid query parameters that work, but don't appear in discovery.
+  private $stackParameters = array(
+      'alt' => array('type' => 'string', 'location' => 'query'),
+      'fields' => array('type' => 'string', 'location' => 'query'),
+      'trace' => array('type' => 'string', 'location' => 'query'),
+      'userIp' => array('type' => 'string', 'location' => 'query'),
+      'quotaUser' => array('type' => 'string', 'location' => 'query'),
+      'data' => array('type' => 'string', 'location' => 'body'),
+      'mimeType' => array('type' => 'string', 'location' => 'header'),
+      'uploadType' => array('type' => 'string', 'location' => 'query'),
+      'mediaUpload' => array('type' => 'complex', 'location' => 'query'),
+      'prettyPrint' => array('type' => 'string', 'location' => 'query'),
+  );
+
+  /** @var string $rootUrl */
+  private $rootUrl;
+
+  /** @var Google_Client $client */
+  private $client;
+
+  /** @var string $serviceName */
+  private $serviceName;
+
+  /** @var string $servicePath */
+  private $servicePath;
+
+  /** @var string $resourceName */
+  private $resourceName;
+
+  /** @var array $methods */
+  private $methods;
+
+  public function __construct($service, $serviceName, $resourceName, $resource)
+  {
+    $this->rootUrl = $service->rootUrl;
+    $this->client = $service->getClient();
+    $this->servicePath = $service->servicePath;
+    $this->serviceName = $serviceName;
+    $this->resourceName = $resourceName;
+    $this->methods = is_array($resource) && isset($resource['methods']) ?
+        $resource['methods'] :
+        array($resourceName => $resource);
+  }
+
+  /**
+   * TODO: This function needs simplifying.
+   * @param $name
+   * @param $arguments
+   * @param $expectedClass - optional, the expected class name
+   * @return Google_Http_Request|expectedClass
+   * @throws Google_Exception
+   */
+  public function call($name, $arguments, $expectedClass = null)
+  {
+    if (! isset($this->methods[$name])) {
+      $this->client->getLogger()->error(
+          'Service method unknown',
+          array(
+              'service' => $this->serviceName,
+              'resource' => $this->resourceName,
+              'method' => $name
+          )
+      );
+
+      throw new Google_Exception(
+          "Unknown function: " .
+          "{$this->serviceName}->{$this->resourceName}->{$name}()"
+      );
+    }
+    $method = $this->methods[$name];
+    $parameters = $arguments[0];
+
+    // postBody is a special case since it's not defined in the discovery
+    // document as parameter, but we abuse the param entry for storing it.
+    $postBody = null;
+    if (isset($parameters['postBody'])) {
+      if ($parameters['postBody'] instanceof Google_Model) {
+        // In the cases the post body is an existing object, we want
+        // to use the smart method to create a simple object for
+        // for JSONification.
+        $parameters['postBody'] = $parameters['postBody']->toSimpleObject();
+      } else if (is_object($parameters['postBody'])) {
+        // If the post body is another kind of object, we will try and
+        // wrangle it into a sensible format.
+        $parameters['postBody'] =
+            $this->convertToArrayAndStripNulls($parameters['postBody']);
+      }
+      $postBody = (array) $parameters['postBody'];
+      unset($parameters['postBody']);
+    }
+
+    // TODO: optParams here probably should have been
+    // handled already - this may well be redundant code.
+    if (isset($parameters['optParams'])) {
+      $optParams = $parameters['optParams'];
+      unset($parameters['optParams']);
+      $parameters = array_merge($parameters, $optParams);
+    }
+
+    if (!isset($method['parameters'])) {
+      $method['parameters'] = array();
+    }
+
+    $method['parameters'] = array_merge(
+        $this->stackParameters,
+        $method['parameters']
+    );
+
+    foreach ($parameters as $key => $val) {
+      if ($key != 'postBody' && ! isset($method['parameters'][$key])) {
+        $this->client->getLogger()->error(
+            'Service parameter unknown',
+            array(
+                'service' => $this->serviceName,
+                'resource' => $this->resourceName,
+                'method' => $name,
+                'parameter' => $key
+            )
+        );
+        throw new Google_Exception("($name) unknown parameter: '$key'");
+      }
+    }
+
+    foreach ($method['parameters'] as $paramName => $paramSpec) {
+      if (isset($paramSpec['required']) &&
+          $paramSpec['required'] &&
+          ! isset($parameters[$paramName])
+      ) {
+        $this->client->getLogger()->error(
+            'Service parameter missing',
+            array(
+                'service' => $this->serviceName,
+                'resource' => $this->resourceName,
+                'method' => $name,
+                'parameter' => $paramName
+            )
+        );
+        throw new Google_Exception("($name) missing required param: '$paramName'");
+      }
+      if (isset($parameters[$paramName])) {
+        $value = $parameters[$paramName];
+        $parameters[$paramName] = $paramSpec;
+        $parameters[$paramName]['value'] = $value;
+        unset($parameters[$paramName]['required']);
+      } else {
+        // Ensure we don't pass nulls.
+        unset($parameters[$paramName]);
+      }
+    }
+
+    $this->client->getLogger()->info(
+        'Service Call',
+        array(
+            'service' => $this->serviceName,
+            'resource' => $this->resourceName,
+            'method' => $name,
+            'arguments' => $parameters,
+        )
+    );
+
+    // build the service uri
+    $url = $this->createRequestUri(
+        $method['path'],
+        $parameters
+    );
+
+    // NOTE: because we're creating the request by hand,
+    // and because the service has a rootUrl property
+    // the "base_uri" of the Http Client is not accounted for
+    $request = new Request(
+        $method['httpMethod'],
+        $url,
+        ['content-type' => 'application/json'],
+        $postBody ? json_encode($postBody) : ''
+    );
+
+    // support uploads
+    if (isset($parameters['data'])) {
+      $mimeType = isset($parameters['mimeType'])
+        ? $parameters['mimeType']['value']
+        : 'application/octet-stream';
+      $data = $parameters['data']['value'];
+      $upload = new Google_Http_MediaFileUpload($this->client, $request, $mimeType, $data);
+
+      // pull down the modified request
+      $request = $upload->getRequest();
+    }
+
+    // if this is a media type, we will return the raw response
+    // rather than using an expected class
+    if (isset($parameters['alt']) && $parameters['alt']['value'] == 'media') {
+      $expectedClass = null;
+    }
+
+    // if the client is marked for deferring, rather than
+    // execute the request, return the response
+    if ($this->client->shouldDefer()) {
+      // @TODO find a better way to do this
+      $request = $request
+        ->withHeader('X-Php-Expected-Class', $expectedClass);
+
+      return $request;
+    }
+
+    return $this->client->execute($request, $expectedClass);
+  }
+
+  protected function convertToArrayAndStripNulls($o)
+  {
+    $o = (array) $o;
+    foreach ($o as $k => $v) {
+      if ($v === null) {
+        unset($o[$k]);
+      } elseif (is_object($v) || is_array($v)) {
+        $o[$k] = $this->convertToArrayAndStripNulls($o[$k]);
+      }
+    }
+    return $o;
+  }
+
+  /**
+   * Parse/expand request parameters and create a fully qualified
+   * request uri.
+   * @static
+   * @param string $restPath
+   * @param array $params
+   * @return string $requestUrl
+   */
+  public function createRequestUri($restPath, $params)
+  {
+    // code for leading slash
+    $requestUrl = $this->servicePath . $restPath;
+    if ($this->rootUrl) {
+      if ('/' !== substr($this->rootUrl, -1) && '/' !== substr($requestUrl, 0, 1)) {
+        $requestUrl = '/' . $requestUrl;
+      }
+      $requestUrl = $this->rootUrl . $requestUrl;
+    }
+    $uriTemplateVars = array();
+    $queryVars = array();
+    foreach ($params as $paramName => $paramSpec) {
+      if ($paramSpec['type'] == 'boolean') {
+        $paramSpec['value'] = $paramSpec['value'] ? 'true' : 'false';
+      }
+      if ($paramSpec['location'] == 'path') {
+        $uriTemplateVars[$paramName] = $paramSpec['value'];
+      } else if ($paramSpec['location'] == 'query') {
+        if (is_array($paramSpec['value'])) {
+          foreach ($paramSpec['value'] as $value) {
+            $queryVars[] = $paramName . '=' . rawurlencode(rawurldecode($value));
+          }
+        } else {
+          $queryVars[] = $paramName . '=' . rawurlencode(rawurldecode($paramSpec['value']));
+        }
+      }
+    }
+
+    if (count($uriTemplateVars)) {
+      $uriTemplateParser = new Google_Utils_UriTemplate();
+      $requestUrl = $uriTemplateParser->parse($requestUrl, $uriTemplateVars);
+    }
+
+    if (count($queryVars)) {
+      $requestUrl .= '?' . implode($queryVars, '&');
+    }
+
+    return $requestUrl;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Task/Exception.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Task/Exception.php
new file mode 100644
index 0000000..5422e6f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Task/Exception.php
@@ -0,0 +1,20 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+class Google_Task_Exception extends Google_Exception
+{
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Task/Retryable.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Task/Retryable.php
new file mode 100644
index 0000000..19aa4dd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Task/Retryable.php
@@ -0,0 +1,24 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Interface for checking how many times a given task can be retried following
+ * a failure.
+ */
+interface Google_Task_Retryable
+{
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Task/Runner.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Task/Runner.php
new file mode 100644
index 0000000..2f25e99
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Task/Runner.php
@@ -0,0 +1,281 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * A task runner with exponential backoff support.
+ *
+ * @see https://developers.google.com/drive/web/handle-errors#implementing_exponential_backoff
+ */
+class Google_Task_Runner
+{
+  const TASK_RETRY_NEVER = 0;
+  const TASK_RETRY_ONCE = 1;
+  const TASK_RETRY_ALWAYS = -1;
+
+  /**
+   * @var integer $maxDelay The max time (in seconds) to wait before a retry.
+   */
+  private $maxDelay = 60;
+  /**
+   * @var integer $delay The previous delay from which the next is calculated.
+   */
+  private $delay = 1;
+
+  /**
+   * @var integer $factor The base number for the exponential back off.
+   */
+  private $factor = 2;
+  /**
+   * @var float $jitter A random number between -$jitter and $jitter will be
+   * added to $factor on each iteration to allow for a better distribution of
+   * retries.
+   */
+  private $jitter = 0.5;
+
+  /**
+   * @var integer $attempts The number of attempts that have been tried so far.
+   */
+  private $attempts = 0;
+  /**
+   * @var integer $maxAttempts The max number of attempts allowed.
+   */
+  private $maxAttempts = 1;
+
+  /**
+   * @var callable $action The task to run and possibly retry.
+   */
+  private $action;
+  /**
+   * @var array $arguments The task arguments.
+   */
+  private $arguments;
+
+  /**
+   * @var array $retryMap Map of errors with retry counts.
+   */
+  protected $retryMap = [
+    '500' => self::TASK_RETRY_ALWAYS,
+    '503' => self::TASK_RETRY_ALWAYS,
+    'rateLimitExceeded' => self::TASK_RETRY_ALWAYS,
+    'userRateLimitExceeded' => self::TASK_RETRY_ALWAYS,
+    6  => self::TASK_RETRY_ALWAYS,  // CURLE_COULDNT_RESOLVE_HOST
+    7  => self::TASK_RETRY_ALWAYS,  // CURLE_COULDNT_CONNECT
+    28 => self::TASK_RETRY_ALWAYS,  // CURLE_OPERATION_TIMEOUTED
+    35 => self::TASK_RETRY_ALWAYS,  // CURLE_SSL_CONNECT_ERROR
+    52 => self::TASK_RETRY_ALWAYS   // CURLE_GOT_NOTHING
+  ];
+
+  /**
+   * Creates a new task runner with exponential backoff support.
+   *
+   * @param array $config The task runner config
+   * @param string $name The name of the current task (used for logging)
+   * @param callable $action The task to run and possibly retry
+   * @param array $arguments The task arguments
+   * @throws Google_Task_Exception when misconfigured
+   */
+  public function __construct(
+      $config,
+      $name,
+      $action,
+      array $arguments = array()
+  ) {
+    if (isset($config['initial_delay'])) {
+      if ($config['initial_delay'] < 0) {
+        throw new Google_Task_Exception(
+            'Task configuration `initial_delay` must not be negative.'
+        );
+      }
+
+      $this->delay = $config['initial_delay'];
+    }
+
+    if (isset($config['max_delay'])) {
+      if ($config['max_delay'] <= 0) {
+        throw new Google_Task_Exception(
+            'Task configuration `max_delay` must be greater than 0.'
+        );
+      }
+
+      $this->maxDelay = $config['max_delay'];
+    }
+
+    if (isset($config['factor'])) {
+      if ($config['factor'] <= 0) {
+        throw new Google_Task_Exception(
+            'Task configuration `factor` must be greater than 0.'
+        );
+      }
+
+      $this->factor = $config['factor'];
+    }
+
+    if (isset($config['jitter'])) {
+      if ($config['jitter'] <= 0) {
+        throw new Google_Task_Exception(
+            'Task configuration `jitter` must be greater than 0.'
+        );
+      }
+
+      $this->jitter = $config['jitter'];
+    }
+
+    if (isset($config['retries'])) {
+      if ($config['retries'] < 0) {
+        throw new Google_Task_Exception(
+            'Task configuration `retries` must not be negative.'
+        );
+      }
+      $this->maxAttempts += $config['retries'];
+    }
+
+    if (!is_callable($action)) {
+        throw new Google_Task_Exception(
+            'Task argument `$action` must be a valid callable.'
+        );
+    }
+
+    $this->action = $action;
+    $this->arguments = $arguments;
+  }
+
+  /**
+   * Checks if a retry can be attempted.
+   *
+   * @return boolean
+   */
+  public function canAttempt()
+  {
+    return $this->attempts < $this->maxAttempts;
+  }
+
+  /**
+   * Runs the task and (if applicable) automatically retries when errors occur.
+   *
+   * @return mixed
+   * @throws Google_Task_Retryable on failure when no retries are available.
+   */
+  public function run()
+  {
+    while ($this->attempt()) {
+      try {
+        return call_user_func_array($this->action, $this->arguments);
+      } catch (Google_Service_Exception $exception) {
+        $allowedRetries = $this->allowedRetries(
+            $exception->getCode(),
+            $exception->getErrors()
+        );
+
+        if (!$this->canAttempt() || !$allowedRetries) {
+          throw $exception;
+        }
+
+        if ($allowedRetries > 0) {
+          $this->maxAttempts = min(
+              $this->maxAttempts,
+              $this->attempts + $allowedRetries
+          );
+        }
+      }
+    }
+  }
+
+  /**
+   * Runs a task once, if possible. This is useful for bypassing the `run()`
+   * loop.
+   *
+   * NOTE: If this is not the first attempt, this function will sleep in
+   * accordance to the backoff configurations before running the task.
+   *
+   * @return boolean
+   */
+  public function attempt()
+  {
+    if (!$this->canAttempt()) {
+      return false;
+    }
+
+    if ($this->attempts > 0) {
+      $this->backOff();
+    }
+
+    $this->attempts++;
+    return true;
+  }
+
+  /**
+   * Sleeps in accordance to the backoff configurations.
+   */
+  private function backOff()
+  {
+    $delay = $this->getDelay();
+
+    usleep($delay * 1000000);
+  }
+
+  /**
+   * Gets the delay (in seconds) for the current backoff period.
+   *
+   * @return float
+   */
+  private function getDelay()
+  {
+    $jitter = $this->getJitter();
+    $factor = $this->attempts > 1 ? $this->factor + $jitter : 1 + abs($jitter);
+
+    return $this->delay = min($this->maxDelay, $this->delay * $factor);
+  }
+
+  /**
+   * Gets the current jitter (random number between -$this->jitter and
+   * $this->jitter).
+   *
+   * @return float
+   */
+  private function getJitter()
+  {
+    return $this->jitter * 2 * mt_rand() / mt_getrandmax() - $this->jitter;
+  }
+
+  /**
+   * Gets the number of times the associated task can be retried.
+   *
+   * NOTE: -1 is returned if the task can be retried indefinitely
+   *
+   * @return integer
+   */
+  public function allowedRetries($code, $errors = array())
+  {
+    if (isset($this->retryMap[$code])) {
+      return $this->retryMap[$code];
+    }
+
+    if (
+        !empty($errors) &&
+        isset($errors[0]['reason'], $this->retryMap[$errors[0]['reason']])
+    ) {
+      return $this->retryMap[$errors[0]['reason']];
+    }
+
+    return 0;
+  }
+
+  public function setRetryMap($retryMap)
+  {
+    $this->retryMap = $retryMap;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Utils/UriTemplate.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Utils/UriTemplate.php
new file mode 100644
index 0000000..e59fe9f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/Utils/UriTemplate.php
@@ -0,0 +1,333 @@
+<?php
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Implementation of levels 1-3 of the URI Template spec.
+ * @see http://tools.ietf.org/html/rfc6570
+ */
+class Google_Utils_UriTemplate
+{
+  const TYPE_MAP = "1";
+  const TYPE_LIST = "2";
+  const TYPE_SCALAR = "4";
+
+  /**
+   * @var $operators array
+   * These are valid at the start of a template block to
+   * modify the way in which the variables inside are
+   * processed.
+   */
+  private $operators = array(
+      "+" => "reserved",
+      "/" => "segments",
+      "." => "dotprefix",
+      "#" => "fragment",
+      ";" => "semicolon",
+      "?" => "form",
+      "&" => "continuation"
+  );
+
+  /**
+   * @var reserved array
+   * These are the characters which should not be URL encoded in reserved
+   * strings.
+   */
+  private $reserved = array(
+      "=", ",", "!", "@", "|", ":", "/", "?", "#",
+      "[", "]",'$', "&", "'", "(", ")", "*", "+", ";"
+  );
+  private $reservedEncoded = array(
+    "%3D", "%2C", "%21", "%40", "%7C", "%3A", "%2F", "%3F",
+    "%23", "%5B", "%5D", "%24", "%26", "%27", "%28", "%29",
+    "%2A", "%2B", "%3B"
+  );
+
+  public function parse($string, array $parameters)
+  {
+    return $this->resolveNextSection($string, $parameters);
+  }
+
+  /**
+   * This function finds the first matching {...} block and
+   * executes the replacement. It then calls itself to find
+   * subsequent blocks, if any.
+   */
+  private function resolveNextSection($string, $parameters)
+  {
+    $start = strpos($string, "{");
+    if ($start === false) {
+      return $string;
+    }
+    $end = strpos($string, "}");
+    if ($end === false) {
+      return $string;
+    }
+    $string = $this->replace($string, $start, $end, $parameters);
+    return $this->resolveNextSection($string, $parameters);
+  }
+
+  private function replace($string, $start, $end, $parameters)
+  {
+    // We know a data block will have {} round it, so we can strip that.
+    $data = substr($string, $start + 1, $end - $start - 1);
+
+    // If the first character is one of the reserved operators, it effects
+    // the processing of the stream.
+    if (isset($this->operators[$data[0]])) {
+      $op = $this->operators[$data[0]];
+      $data = substr($data, 1);
+      $prefix = "";
+      $prefix_on_missing = false;
+
+      switch ($op) {
+        case "reserved":
+          // Reserved means certain characters should not be URL encoded
+          $data = $this->replaceVars($data, $parameters, ",", null, true);
+          break;
+        case "fragment":
+          // Comma separated with fragment prefix. Bare values only.
+          $prefix = "#";
+          $prefix_on_missing = true;
+          $data = $this->replaceVars($data, $parameters, ",", null, true);
+          break;
+        case "segments":
+          // Slash separated data. Bare values only.
+          $prefix = "/";
+          $data =$this->replaceVars($data, $parameters, "/");
+          break;
+        case "dotprefix":
+          // Dot separated data. Bare values only.
+          $prefix = ".";
+          $prefix_on_missing = true;
+          $data = $this->replaceVars($data, $parameters, ".");
+          break;
+        case "semicolon":
+          // Semicolon prefixed and separated. Uses the key name
+          $prefix = ";";
+          $data = $this->replaceVars($data, $parameters, ";", "=", false, true, false);
+          break;
+        case "form":
+          // Standard URL format. Uses the key name
+          $prefix = "?";
+          $data = $this->replaceVars($data, $parameters, "&", "=");
+          break;
+        case "continuation":
+          // Standard URL, but with leading ampersand. Uses key name.
+          $prefix = "&";
+          $data = $this->replaceVars($data, $parameters, "&", "=");
+          break;
+      }
+
+      // Add the initial prefix character if data is valid.
+      if ($data || ($data !== false && $prefix_on_missing)) {
+        $data = $prefix . $data;
+      }
+
+    } else {
+      // If no operator we replace with the defaults.
+      $data = $this->replaceVars($data, $parameters);
+    }
+    // This is chops out the {...} and replaces with the new section.
+    return substr($string, 0, $start) . $data . substr($string, $end + 1);
+  }
+
+  private function replaceVars(
+      $section,
+      $parameters,
+      $sep = ",",
+      $combine = null,
+      $reserved = false,
+      $tag_empty = false,
+      $combine_on_empty = true
+  ) {
+    if (strpos($section, ",") === false) {
+      // If we only have a single value, we can immediately process.
+      return $this->combine(
+          $section,
+          $parameters,
+          $sep,
+          $combine,
+          $reserved,
+          $tag_empty,
+          $combine_on_empty
+      );
+    } else {
+      // If we have multiple values, we need to split and loop over them.
+      // Each is treated individually, then glued together with the
+      // separator character.
+      $vars = explode(",", $section);
+      return $this->combineList(
+          $vars,
+          $sep,
+          $parameters,
+          $combine,
+          $reserved,
+          false, // Never emit empty strings in multi-param replacements
+          $combine_on_empty
+      );
+    }
+  }
+
+  public function combine(
+      $key,
+      $parameters,
+      $sep,
+      $combine,
+      $reserved,
+      $tag_empty,
+      $combine_on_empty
+  ) {
+    $length = false;
+    $explode = false;
+    $skip_final_combine = false;
+    $value = false;
+
+    // Check for length restriction.
+    if (strpos($key, ":") !== false) {
+      list($key, $length) = explode(":", $key);
+    }
+
+    // Check for explode parameter.
+    if ($key[strlen($key) - 1] == "*") {
+      $explode = true;
+      $key = substr($key, 0, -1);
+      $skip_final_combine = true;
+    }
+
+    // Define the list separator.
+    $list_sep = $explode ? $sep : ",";
+
+    if (isset($parameters[$key])) {
+      $data_type = $this->getDataType($parameters[$key]);
+      switch ($data_type) {
+        case self::TYPE_SCALAR:
+          $value = $this->getValue($parameters[$key], $length);
+          break;
+        case self::TYPE_LIST:
+          $values = array();
+          foreach ($parameters[$key] as $pkey => $pvalue) {
+            $pvalue = $this->getValue($pvalue, $length);
+            if ($combine && $explode) {
+              $values[$pkey] = $key . $combine . $pvalue;
+            } else {
+              $values[$pkey] = $pvalue;
+            }
+          }
+          $value = implode($list_sep, $values);
+          if ($value == '') {
+            return '';
+          }
+          break;
+        case self::TYPE_MAP:
+          $values = array();
+          foreach ($parameters[$key] as $pkey => $pvalue) {
+            $pvalue = $this->getValue($pvalue, $length);
+            if ($explode) {
+              $pkey = $this->getValue($pkey, $length);
+              $values[] = $pkey . "=" . $pvalue; // Explode triggers = combine.
+            } else {
+              $values[] = $pkey;
+              $values[] = $pvalue;
+            }
+          }
+          $value = implode($list_sep, $values);
+          if ($value == '') {
+            return false;
+          }
+          break;
+      }
+    } else if ($tag_empty) {
+      // If we are just indicating empty values with their key name, return that.
+      return $key;
+    } else {
+      // Otherwise we can skip this variable due to not being defined.
+      return false;
+    }
+
+    if ($reserved) {
+      $value = str_replace($this->reservedEncoded, $this->reserved, $value);
+    }
+
+    // If we do not need to include the key name, we just return the raw
+    // value.
+    if (!$combine || $skip_final_combine) {
+      return $value;
+    }
+
+    // Else we combine the key name: foo=bar, if value is not the empty string.
+    return $key . ($value != '' || $combine_on_empty ? $combine . $value : '');
+  }
+
+  /**
+   * Return the type of a passed in value
+   */
+  private function getDataType($data)
+  {
+    if (is_array($data)) {
+      reset($data);
+      if (key($data) !== 0) {
+        return self::TYPE_MAP;
+      }
+      return self::TYPE_LIST;
+    }
+    return self::TYPE_SCALAR;
+  }
+
+  /**
+   * Utility function that merges multiple combine calls
+   * for multi-key templates.
+   */
+  private function combineList(
+      $vars,
+      $sep,
+      $parameters,
+      $combine,
+      $reserved,
+      $tag_empty,
+      $combine_on_empty
+  ) {
+    $ret = array();
+    foreach ($vars as $var) {
+      $response = $this->combine(
+          $var,
+          $parameters,
+          $sep,
+          $combine,
+          $reserved,
+          $tag_empty,
+          $combine_on_empty
+      );
+      if ($response === false) {
+        continue;
+      }
+      $ret[] = $response;
+    }
+    return implode($sep, $ret);
+  }
+
+  /**
+   * Utility function to encode and trim values
+   */
+  private function getValue($value, $length)
+  {
+    if ($length) {
+      $value = substr($value, 0, $length);
+    }
+    $value = rawurlencode($value);
+    return $value;
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/autoload.php b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/autoload.php
new file mode 100644
index 0000000..8b49301
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/apiclient/src/Google/autoload.php
@@ -0,0 +1,21 @@
+<?php
+
+/**
+ * THIS FILE IS FOR BACKWARDS COMPATIBLITY ONLY
+ *
+ * If you were not already including this file in your project, please ignore it
+ */
+
+$file = __DIR__ . '/../../vendor/autoload.php';
+
+if (!file_exists($file)) {
+  $exception = 'This library must be installed via composer or by downloading the full package.';
+  $exception .= ' See the instructions at https://github.com/google/google-api-php-client#installation.';
+  throw new Exception($exception);
+}
+
+$error = 'google-api-php-client\'s autoloader was moved to vendor/autoload.php in 2.0.0. This ';
+$error .= 'redirect will be removed in 2.1. Please adjust your code to use the new location.';
+trigger_error($error, E_USER_DEPRECATED);
+
+require_once $file;
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/.editorconfig b/Postman/Postman-Mail/google-api-client/vendor/google/auth/.editorconfig
new file mode 100644
index 0000000..6bc23e6
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/.editorconfig
@@ -0,0 +1,18 @@
+# EditorConfig is awesome: http://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+charset = utf-8
+
+# Get rid of whitespace to avoid diffs with a bunch of EOL changes
+trim_trailing_whitespace = true
+
+# Unix-style newlines with a newline ending every file
+[*]
+end_of_line = lf
+insert_final_newline = true
+
+# PHP-Files
+[*.php]
+indent_style = space
+indent_size = 4
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/.gitignore b/Postman/Postman-Mail/google-api-client/vendor/google/auth/.gitignore
new file mode 100644
index 0000000..1cb030a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/.gitignore
@@ -0,0 +1,3 @@
+*~
+vendor
+composer.lock
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/.php_cs b/Postman/Postman-Mail/google-api-client/vendor/google/auth/.php_cs
new file mode 100644
index 0000000..d5d4f5a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/.php_cs
@@ -0,0 +1,54 @@
+<?php
+/**
+ * This file represents the configuration for Code Sniffing PSR-2-related
+ * automatic checks of coding guidelines
+ * Install @fabpot's great php-cs-fixer tool via
+ *
+ *  $ composer global require fabpot/php-cs-fixer
+ *
+ * And then simply run
+ *
+ *  $ php-cs-fixer fix --config-file .php_cs
+ *
+ * inside the root directory.
+ *
+ * 	 http://www.php-fig.org/psr/psr-2/
+ * 	 http://cs.sensiolabs.org
+ */
+
+if (PHP_SAPI !== 'cli') {
+    die('This script supports command line usage only. Please check your command.');
+}
+// Define in which folders to search and which folders to exclude
+// Exclude some directories that are excluded by Git anyways to speed up the sniffing
+$finder = Symfony\CS\Finder\DefaultFinder::create()
+    ->exclude('vendor')
+    ->in(__DIR__);
+
+// Return a Code Sniffing configuration using
+// all sniffers needed for PSR-2
+// and additionally:
+//  - Remove leading slashes in use clauses.
+//  - PHP single-line arrays should not have trailing comma.
+//  - Single-line whitespace before closing semicolon are prohibited.
+//  - Remove unused use statements in the PHP source code
+//  - Ensure Concatenation to have at least one whitespace around
+//  - Remove trailing whitespace at the end of blank lines.
+return Symfony\CS\Config\Config::create()
+    ->level(Symfony\CS\FixerInterface::PSR2_LEVEL)
+    ->fixers([
+        'remove_leading_slash_use',
+        'single_array_no_trailing_comma',
+        'spaces_before_semicolon',
+        'unused_use',
+        'concat_with_spaces',
+        'whitespacy_lines',
+        'ordered_use',
+        'single_quote',
+        'duplicate_semicolon',
+        'extra_empty_lines',
+        'phpdoc_no_package',
+        'phpdoc_scalar',
+        'no_empty_lines_after_phpdocs'
+    ])
+    ->finder($finder);
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/.travis.yml b/Postman/Postman-Mail/google-api-client/vendor/google/auth/.travis.yml
new file mode 100644
index 0000000..8c1b058
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/.travis.yml
@@ -0,0 +1,32 @@
+language: php
+
+branches:
+  only: [master]
+
+sudo: false
+
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7.0
+  - 7.1
+  - 7.2
+
+env:
+  -
+  - COMPOSER_ARGS="--prefer-lowest"
+matrix:
+  include:
+    - php: "7.2"
+      env: RUN_CS_FIXER=true
+
+before_script:
+  - composer update $COMPOSER_ARGS
+
+script:
+  - if [ "${RUN_CS_FIXER}" = "true" ]; then
+      vendor/bin/php-cs-fixer fix --dry-run --diff --config-file=.php_cs .;
+    else
+      vendor/bin/phpunit;
+    fi
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/COPYING b/Postman/Postman-Mail/google-api-client/vendor/google/auth/COPYING
new file mode 100644
index 0000000..b5d5055
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/COPYING
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2015 Google Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/google/auth/LICENSE
new file mode 100644
index 0000000..a148ba5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/LICENSE
@@ -0,0 +1,203 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction,
+and distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by
+the copyright owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all
+other entities that control, are controlled by, or are under common
+control with that entity. For the purposes of this definition,
+"control" means (i) the power, direct or indirect, to cause the
+direction or management of such entity, whether by contract or
+otherwise, or (ii) ownership of fifty percent (50%) or more of the
+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity
+exercising permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications,
+including but not limited to software source code, documentation
+source, and configuration files.
+
+"Object" form shall mean any form resulting from mechanical
+transformation or translation of a Source form, including but
+not limited to compiled object code, generated documentation,
+and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or
+Object form, made available under the License, as indicated by a
+copyright notice that is included in or attached to the work
+(an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object
+form, that is based on (or derived from) the Work and for which the
+editorial revisions, annotations, elaborations, or other modifications
+represent, as a whole, an original work of authorship. For the purposes
+of this License, Derivative Works shall not include works that remain
+separable from, or merely link (or bind by name) to the interfaces of,
+the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including
+the original version of the Work and any modifications or additions
+to that Work or Derivative Works thereof, that is intentionally
+submitted to Licensor for inclusion in the Work by the copyright owner
+or by an individual or Legal Entity authorized to submit on behalf of
+the copyright owner. For the purposes of this definition, "submitted"
+means any form of electronic, verbal, or written communication sent
+to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems,
+and issue tracking systems that are managed by, or on behalf of, the
+Licensor for the purpose of discussing and improving the Work, but
+excluding communication that is conspicuously marked or otherwise
+designated in writing by the copyright owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity
+on behalf of whom a Contribution has been received by Licensor and
+subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+this License, each Contributor hereby grants to You a perpetual,
+worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+copyright license to reproduce, prepare Derivative Works of,
+publicly display, publicly perform, sublicense, and distribute the
+Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
+this License, each Contributor hereby grants to You a perpetual,
+worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+(except as stated in this section) patent license to make, have made,
+use, offer to sell, sell, import, and otherwise transfer the Work,
+where such license applies only to those patent claims licensable
+by such Contributor that are necessarily infringed by their
+Contribution(s) alone or by combination of their Contribution(s)
+with the Work to which such Contribution(s) was submitted. If You
+institute patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that the Work
+or a Contribution incorporated within the Work constitutes direct
+or contributory patent infringement, then any patent licenses
+granted to You under this License for that Work shall terminate
+as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+Work or Derivative Works thereof in any medium, with or without
+modifications, and in Source or Object form, provided that You
+meet the following conditions:
+
+(a) You must give any other recipients of the Work or
+Derivative Works a copy of this License; and
+
+(b) You must cause any modified files to carry prominent notices
+stating that You changed the files; and
+
+(c) You must retain, in the Source form of any Derivative Works
+that You distribute, all copyright, patent, trademark, and
+attribution notices from the Source form of the Work,
+excluding those notices that do not pertain to any part of
+the Derivative Works; and
+
+(d) If the Work includes a "NOTICE" text file as part of its
+distribution, then any Derivative Works that You distribute must
+include a readable copy of the attribution notices contained
+within such NOTICE file, excluding those notices that do not
+pertain to any part of the Derivative Works, in at least one
+of the following places: within a NOTICE text file distributed
+as part of the Derivative Works; within the Source form or
+documentation, if provided along with the Derivative Works; or,
+within a display generated by the Derivative Works, if and
+wherever such third-party notices normally appear. The contents
+of the NOTICE file are for informational purposes only and
+do not modify the License. You may add Your own attribution
+notices within Derivative Works that You distribute, alongside
+or as an addendum to the NOTICE text from the Work, provided
+that such additional attribution notices cannot be construed
+as modifying the License.
+
+You may add Your own copyright statement to Your modifications and
+may provide additional or different license terms and conditions
+for use, reproduction, or distribution of Your modifications, or
+for any such Derivative Works as a whole, provided Your use,
+reproduction, and distribution of the Work otherwise complies with
+the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+any Contribution intentionally submitted for inclusion in the Work
+by You to the Licensor shall be under the terms and conditions of
+this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify
+the terms of any separate license agreement you may have executed
+with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+names, trademarks, service marks, or product names of the Licensor,
+except as required for reasonable and customary use in describing the
+origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+agreed to in writing, Licensor provides the Work (and each
+Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+implied, including, without limitation, any warranties or conditions
+of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+PARTICULAR PURPOSE. You are solely responsible for determining the
+appropriateness of using or redistributing the Work and assume any
+risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+whether in tort (including negligence), contract, or otherwise,
+unless required by applicable law (such as deliberate and grossly
+negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special,
+incidental, or consequential damages of any character arising as a
+result of this License or out of the use or inability to use the
+Work (including but not limited to damages for loss of goodwill,
+work stoppage, computer failure or malfunction, or any and all
+other commercial damages or losses), even if such Contributor
+has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+the Work or Derivative Works thereof, You may choose to offer,
+and charge a fee for, acceptance of support, warranty, indemnity,
+or other liability obligations and/or rights consistent with this
+License. However, in accepting such obligations, You may act only
+on Your own behalf and on Your sole responsibility, not on behalf
+of any other Contributor, and only if You agree to indemnify,
+defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason
+of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+To apply the Apache License to your work, attach the following
+boilerplate notice, with the fields enclosed by brackets "[]"
+replaced with your own identifying information. (Don't include
+the brackets!) The text should be enclosed in the appropriate
+comment syntax for the file format. We also recommend that a
+file or class name and description of purpose be included on the
+same "printed page" as the copyright notice for easier
+identification within third-party archives.
+
+Copyright [yyyy] [name of copyright owner]
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/README.md b/Postman/Postman-Mail/google-api-client/vendor/google/auth/README.md
new file mode 100644
index 0000000..d102382
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/README.md
@@ -0,0 +1,150 @@
+# Google Auth Library for PHP
+
+<dl>
+  <dt>Homepage</dt><dd><a href="http://www.github.com/google/google-auth-library-php">http://www.github.com/google/google-auth-library-php</a></dd>
+  <dt>Authors</dt>
+    <dd><a href="mailto:temiola@google.com">Tim Emiola</a></dd>
+    <dd><a href="mailto:stanleycheung@google.com">Stanley Cheung</a></dd>
+    <dd><a href="mailto:betterbrent@google.com">Brent Shaffer</a></dd>
+  <dt>Copyright</dt><dd>Copyright © 2015 Google, Inc.</dd>
+  <dt>License</dt><dd>Apache 2.0</dd>
+</dl>
+
+## Description
+
+This is Google's officially supported PHP client library for using OAuth 2.0
+authorization and authentication with Google APIs.
+
+### Installing via Composer
+
+The recommended way to install the google auth library is through
+[Composer](http://getcomposer.org).
+
+```bash
+# Install Composer
+curl -sS https://getcomposer.org/installer | php
+```
+
+Next, run the Composer command to install the latest stable version:
+
+```bash
+composer.phar require google/auth
+```
+
+## Application Default Credentials
+
+This library provides an implementation of
+[application default credentials][application default credentials] for PHP.
+
+The Application Default Credentials provide a simple way to get authorization
+credentials for use in calling Google APIs.
+
+They are best suited for cases when the call needs to have the same identity
+and authorization level for the application independent of the user. This is
+the recommended approach to authorize calls to Cloud APIs, particularly when
+you're building an application that uses Google Compute Engine.
+
+#### Download your Service Account Credentials JSON file
+
+To use `Application Default Credentials`, You first need to download a set of
+JSON credentials for your project. Go to **APIs & Auth** > **Credentials** in
+the [Google Developers Console][developer console] and select
+**Service account** from the **Add credentials** dropdown.
+
+> This file is your *only copy* of these credentials. It should never be
+> committed with your source code, and should be stored securely.
+
+Once downloaded, store the path to this file in the
+`GOOGLE_APPLICATION_CREDENTIALS` environment variable.
+
+```php
+putenv('GOOGLE_APPLICATION_CREDENTIALS=/path/to/my/credentials.json');
+```
+
+> PHP's `putenv` function is just one way to set an environment variable.
+> Consider using `.htaccess` or apache configuration files as well.
+
+#### Enable the API you want to use
+
+Before making your API call, you must be sure the API you're calling has been
+enabled. Go to **APIs & Auth** > **APIs** in the
+[Google Developers Console][developer console] and enable the APIs you'd like to
+call. For the example below, you must enable the `Drive API`.
+
+#### Call the APIs
+
+As long as you update the environment variable below to point to *your* JSON
+credentials file, the following code should output a list of your Drive files.
+
+```php
+use Google\Auth\ApplicationDefaultCredentials;
+use GuzzleHttp\Client;
+use GuzzleHttp\HandlerStack;
+
+// specify the path to your application credentials
+putenv('GOOGLE_APPLICATION_CREDENTIALS=/path/to/my/credentials.json');
+
+// define the scopes for your API call
+$scopes = ['https://www.googleapis.com/auth/drive.readonly'];
+
+// create middleware
+$middleware = ApplicationDefaultCredentials::getMiddleware($scopes);
+$stack = HandlerStack::create();
+$stack->push($middleware);
+
+// create the HTTP client
+$client = new Client([
+  'handler' => $stack,
+  'base_uri' => 'https://www.googleapis.com',
+  'auth' => 'google_auth'  // authorize all requests
+]);
+
+// make the request
+$response = $client->get('drive/v2/files');
+
+// show the result!
+print_r((string) $response->getBody());
+```
+
+##### Guzzle 5 Compatibility
+
+If you are using [Guzzle 5][Guzzle 5], replace the `create middleware` and
+`create the HTTP Client` steps with the following:
+
+```php
+// create the HTTP client
+$client = new Client([
+  'base_url' => 'https://www.googleapis.com',
+  'auth' => 'google_auth'  // authorize all requests
+]);
+
+// create subscriber
+$subscriber = ApplicationDefaultCredentials::getSubscriber($scopes);
+$client->getEmitter()->attach($subscriber);
+
+```
+
+## License
+
+This library is licensed under Apache 2.0. Full license text is
+available in [COPYING][copying].
+
+## Contributing
+
+See [CONTRIBUTING][contributing].
+
+## Support
+
+Please
+[report bugs at the project on Github](https://github.com/google/google-auth-library-php/issues). Don't
+hesitate to
+[ask questions](http://stackoverflow.com/questions/tagged/google-auth-library-php)
+about the client or APIs on [StackOverflow](http://stackoverflow.com).
+
+[google-apis-php-client]: https://github.com/google/google-api-php-client
+[application default credentials]: https://developers.google.com/accounts/docs/application-default-credentials
+[contributing]: https://github.com/google/google-auth-library-php/tree/master/CONTRIBUTING.md
+[copying]: https://github.com/google/google-auth-library-php/tree/master/COPYING
+[Guzzle]: https://github.com/guzzle/guzzle
+[Guzzle 5]: http://docs.guzzlephp.org/en/5.3
+[developer console]: https://console.developers.google.com
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/autoload.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/autoload.php
new file mode 100644
index 0000000..f547337
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/autoload.php
@@ -0,0 +1,34 @@
+<?php
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+function oauth2client_php_autoload($className)
+{
+    $classPath = explode('_', $className);
+    if ($classPath[0] != 'Google') {
+        return;
+    }
+    if (count($classPath) > 3) {
+        // Maximum class file path depth in this project is 3.
+    $classPath = array_slice($classPath, 0, 3);
+    }
+    $filePath = dirname(__FILE__) . '/src/' . implode('/', $classPath) . '.php';
+    if (file_exists($filePath)) {
+        require_once $filePath;
+    }
+}
+
+spl_autoload_register('oauth2client_php_autoload');
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/composer.json b/Postman/Postman-Mail/google-api-client/vendor/google/auth/composer.json
new file mode 100644
index 0000000..0e13606
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/composer.json
@@ -0,0 +1,27 @@
+{
+  "name": "google/auth",
+  "type": "library",
+  "description": "Google Auth Library for PHP",
+  "keywords": ["google", "oauth2", "authentication"],
+  "homepage": "http://github.com/google/google-auth-library-php",
+  "license": "Apache-2.0",
+  "require": {
+    "php": ">=5.4",
+    "firebase/php-jwt": "~2.0|~3.0|~4.0|~5.0",
+    "guzzlehttp/guzzle": "~5.3.1|~6.0",
+    "guzzlehttp/psr7": "~1.2",
+    "psr/http-message": "^1.0",
+    "psr/cache": "^1.0"
+  },
+  "require-dev": {
+    "guzzlehttp/promises": "0.1.1|^1.3",
+    "friendsofphp/php-cs-fixer": "^1.11",
+    "phpunit/phpunit": "^4.8.36|^5.7",
+    "sebastian/comparator": ">=1.2.3"
+  },
+  "autoload": {
+    "psr-4": {
+      "Google\\Auth\\": "src"
+    }
+  }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/ApplicationDefaultCredentials.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/ApplicationDefaultCredentials.php
new file mode 100644
index 0000000..6465bdc
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/ApplicationDefaultCredentials.php
@@ -0,0 +1,173 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth;
+
+use DomainException;
+use Google\Auth\Credentials\AppIdentityCredentials;
+use Google\Auth\Credentials\GCECredentials;
+use Google\Auth\Middleware\AuthTokenMiddleware;
+use Google\Auth\Subscriber\AuthTokenSubscriber;
+use Psr\Cache\CacheItemPoolInterface;
+
+/**
+ * ApplicationDefaultCredentials obtains the default credentials for
+ * authorizing a request to a Google service.
+ *
+ * Application Default Credentials are described here:
+ * https://developers.google.com/accounts/docs/application-default-credentials
+ *
+ * This class implements the search for the application default credentials as
+ * described in the link.
+ *
+ * It provides three factory methods:
+ * - #get returns the computed credentials object
+ * - #getSubscriber returns an AuthTokenSubscriber built from the credentials object
+ * - #getMiddleware returns an AuthTokenMiddleware built from the credentials object
+ *
+ * This allows it to be used as follows with GuzzleHttp\Client:
+ *
+ *   use Google\Auth\ApplicationDefaultCredentials;
+ *   use GuzzleHttp\Client;
+ *   use GuzzleHttp\HandlerStack;
+ *
+ *   $middleware = ApplicationDefaultCredentials::getMiddleware(
+ *       'https://www.googleapis.com/auth/taskqueue'
+ *   );
+ *   $stack = HandlerStack::create();
+ *   $stack->push($middleware);
+ *
+ *   $client = new Client([
+ *       'handler' => $stack,
+ *       'base_uri' => 'https://www.googleapis.com/taskqueue/v1beta2/projects/',
+ *       'auth' => 'google_auth' // authorize all requests
+ *   ]);
+ *
+ *   $res = $client->get('myproject/taskqueues/myqueue');
+ */
+class ApplicationDefaultCredentials
+{
+    /**
+     * Obtains an AuthTokenSubscriber that uses the default FetchAuthTokenInterface
+     * implementation to use in this environment.
+     *
+     * If supplied, $scope is used to in creating the credentials instance if
+     * this does not fallback to the compute engine defaults.
+     *
+     * @param string|array scope the scope of the access request, expressed
+     *   either as an Array or as a space-delimited String.
+     * @param callable $httpHandler callback which delivers psr7 request
+     * @param array $cacheConfig configuration for the cache when it's present
+     * @param CacheItemPoolInterface $cache an implementation of CacheItemPoolInterface
+     *
+     * @return AuthTokenSubscriber
+     *
+     * @throws DomainException if no implementation can be obtained.
+     */
+    public static function getSubscriber(
+        $scope = null,
+        callable $httpHandler = null,
+        array $cacheConfig = null,
+        CacheItemPoolInterface $cache = null
+    ) {
+        $creds = self::getCredentials($scope, $httpHandler, $cacheConfig, $cache);
+
+        return new AuthTokenSubscriber($creds, $httpHandler);
+    }
+
+    /**
+     * Obtains an AuthTokenMiddleware that uses the default FetchAuthTokenInterface
+     * implementation to use in this environment.
+     *
+     * If supplied, $scope is used to in creating the credentials instance if
+     * this does not fallback to the compute engine defaults.
+     *
+     * @param string|array scope the scope of the access request, expressed
+     *   either as an Array or as a space-delimited String.
+     * @param callable $httpHandler callback which delivers psr7 request
+     * @param array $cacheConfig configuration for the cache when it's present
+     * @param CacheItemPoolInterface $cache
+     *
+     * @return AuthTokenMiddleware
+     *
+     * @throws DomainException if no implementation can be obtained.
+     */
+    public static function getMiddleware(
+        $scope = null,
+        callable $httpHandler = null,
+        array $cacheConfig = null,
+        CacheItemPoolInterface $cache = null
+    ) {
+        $creds = self::getCredentials($scope, $httpHandler, $cacheConfig, $cache);
+
+        return new AuthTokenMiddleware($creds, $httpHandler);
+    }
+
+    /**
+     * Obtains the default FetchAuthTokenInterface implementation to use
+     * in this environment.
+     *
+     * If supplied, $scope is used to in creating the credentials instance if
+     * this does not fallback to the Compute Engine defaults.
+     *
+     * @param string|array scope the scope of the access request, expressed
+     *   either as an Array or as a space-delimited String.
+     * @param callable $httpHandler callback which delivers psr7 request
+     * @param array $cacheConfig configuration for the cache when it's present
+     * @param CacheItemPoolInterface $cache
+     *
+     * @return CredentialsLoader
+     *
+     * @throws DomainException if no implementation can be obtained.
+     */
+    public static function getCredentials(
+        $scope = null,
+        callable $httpHandler = null,
+        array $cacheConfig = null,
+        CacheItemPoolInterface $cache = null
+    ) {
+        $creds = null;
+        $jsonKey = CredentialsLoader::fromEnv()
+            ?: CredentialsLoader::fromWellKnownFile();
+
+        if (!is_null($jsonKey)) {
+            $creds = CredentialsLoader::makeCredentials($scope, $jsonKey);
+        } elseif (AppIdentityCredentials::onAppEngine() && !GCECredentials::onAppEngineFlexible()) {
+            $creds = new AppIdentityCredentials($scope);
+        } elseif (GCECredentials::onGce($httpHandler)) {
+            $creds = new GCECredentials();
+        }
+
+        if (is_null($creds)) {
+            throw new \DomainException(self::notFound());
+        }
+        if (!is_null($cache)) {
+            $creds = new FetchAuthTokenCache($creds, $cacheConfig, $cache);
+        }
+        return $creds;
+    }
+
+    private static function notFound()
+    {
+        $msg = 'Could not load the default credentials. Browse to ';
+        $msg .= 'https://developers.google.com';
+        $msg .= '/accounts/docs/application-default-credentials';
+        $msg .= ' for more information';
+
+        return $msg;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Cache/InvalidArgumentException.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Cache/InvalidArgumentException.php
new file mode 100644
index 0000000..331e561
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Cache/InvalidArgumentException.php
@@ -0,0 +1,24 @@
+<?php
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Cache;
+
+use Psr\Cache\InvalidArgumentException as PsrInvalidArgumentException;
+
+class InvalidArgumentException extends \InvalidArgumentException implements PsrInvalidArgumentException
+{
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Cache/Item.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Cache/Item.php
new file mode 100644
index 0000000..d5ce1a5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Cache/Item.php
@@ -0,0 +1,185 @@
+<?php
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Cache;
+
+use Psr\Cache\CacheItemInterface;
+
+/**
+ * A cache item.
+ */
+final class Item implements CacheItemInterface
+{
+    /**
+     * @var string
+     */
+    private $key;
+
+    /**
+     * @var mixed
+     */
+    private $value;
+
+    /**
+     * @var \DateTime
+     */
+    private $expiration;
+
+    /**
+     * @var bool
+     */
+    private $isHit = false;
+
+    /**
+     * @param string $key
+     */
+    public function __construct($key)
+    {
+        $this->key = $key;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getKey()
+    {
+        return $this->key;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function get()
+    {
+        return $this->isHit() ? $this->value : null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isHit()
+    {
+        if (!$this->isHit) {
+            return false;
+        }
+
+        if ($this->expiration === null) {
+            return true;
+        }
+
+        return new \DateTime() < $this->expiration;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function set($value)
+    {
+        $this->isHit = true;
+        $this->value = $value;
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function expiresAt($expiration)
+    {
+        if ($this->isValidExpiration($expiration)) {
+            $this->expiration = $expiration;
+
+            return $this;
+        }
+
+        $implementationMessage = interface_exists('DateTimeInterface')
+            ? 'implement interface DateTimeInterface'
+            : 'be an instance of DateTime';
+
+        $error = sprintf(
+            'Argument 1 passed to %s::expiresAt() must %s, %s given',
+            get_class($this),
+            $implementationMessage,
+            gettype($expiration)
+        );
+
+        $this->handleError($error);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function expiresAfter($time)
+    {
+        if (is_int($time)) {
+            $this->expiration = new \DateTime("now + $time seconds");
+        } elseif ($time instanceof \DateInterval) {
+            $this->expiration = (new \DateTime())->add($time);
+        } elseif ($time === null) {
+            $this->expiration = $time;
+        } else {
+            $message = 'Argument 1 passed to %s::expiresAfter() must be an ' .
+                       'instance of DateInterval or of the type integer, %s given';
+            $error = sprintf($message, get_class($this), gettype($time));
+
+            $this->handleError($error);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Handles an error.
+     *
+     * @param string $error
+     * @throws \TypeError
+     */
+    private function handleError($error)
+    {
+        if (class_exists('TypeError')) {
+            throw new \TypeError($error);
+        }
+
+        trigger_error($error, E_USER_ERROR);
+    }
+
+    /**
+     * Determines if an expiration is valid based on the rules defined by PSR6.
+     *
+     * @param mixed $expiration
+     * @return bool
+     */
+    private function isValidExpiration($expiration)
+    {
+        if ($expiration === null) {
+            return true;
+        }
+
+        // We test for two types here due to the fact the DateTimeInterface
+        // was not introduced until PHP 5.5. Checking for the DateTime type as
+        // well allows us to support 5.4.
+        if ($expiration instanceof \DateTimeInterface) {
+            return true;
+        }
+
+        if ($expiration instanceof \DateTime) {
+            return true;
+        }
+
+        return false;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Cache/MemoryCacheItemPool.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Cache/MemoryCacheItemPool.php
new file mode 100644
index 0000000..0af2930
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Cache/MemoryCacheItemPool.php
@@ -0,0 +1,154 @@
+<?php
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Cache;
+
+use Psr\Cache\CacheItemInterface;
+use Psr\Cache\CacheItemPoolInterface;
+
+/**
+ * Simple in-memory cache implementation.
+ */
+final class MemoryCacheItemPool implements CacheItemPoolInterface
+{
+    /**
+     * @var CacheItemInterface[]
+     */
+    private $items;
+
+    /**
+     * @var CacheItemInterface[]
+     */
+    private $deferredItems;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItem($key)
+    {
+        return current($this->getItems([$key]));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getItems(array $keys = [])
+    {
+        $items = [];
+
+        foreach ($keys as $key) {
+            $items[$key] = $this->hasItem($key) ? clone $this->items[$key] : new Item($key);
+        }
+
+        return $items;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function hasItem($key)
+    {
+        $this->isValidKey($key);
+
+        return isset($this->items[$key]) && $this->items[$key]->isHit();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function clear()
+    {
+        $this->items = [];
+        $this->deferredItems = [];
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItem($key)
+    {
+        return $this->deleteItems([$key]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function deleteItems(array $keys)
+    {
+        array_walk($keys, [$this, 'isValidKey']);
+
+        foreach ($keys as $key) {
+            unset($this->items[$key]);
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function save(CacheItemInterface $item)
+    {
+        $this->items[$item->getKey()] = $item;
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function saveDeferred(CacheItemInterface $item)
+    {
+        $this->deferredItems[$item->getKey()] = $item;
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function commit()
+    {
+        foreach ($this->deferredItems as $item) {
+            $this->save($item);
+        }
+
+        $this->deferredItems = [];
+
+        return true;
+    }
+
+    /**
+     * Determines if the provided key is valid.
+     *
+     * @param string $key
+     * @return bool
+     * @throws InvalidArgumentException
+     */
+    private function isValidKey($key)
+    {
+        $invalidCharacters = '{}()/\\\\@:';
+
+        if (!is_string($key) || preg_match("#[$invalidCharacters]#", $key)) {
+            throw new InvalidArgumentException('The provided key is not valid: ' . var_export($key, true));
+        }
+
+        return true;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/CacheTrait.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/CacheTrait.php
new file mode 100644
index 0000000..217ce8e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/CacheTrait.php
@@ -0,0 +1,83 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth;
+
+trait CacheTrait
+{
+    private $maxKeyLength = 64;
+
+    /**
+     * Gets the cached value if it is present in the cache when that is
+     * available.
+     */
+    private function getCachedValue($k)
+    {
+        if (is_null($this->cache)) {
+            return;
+        }
+
+        $key = $this->getFullCacheKey($k);
+        if (is_null($key)) {
+            return;
+        }
+
+        $cacheItem = $this->cache->getItem($key);
+        if ($cacheItem->isHit()) {
+            return $cacheItem->get();
+        }
+    }
+
+    /**
+     * Saves the value in the cache when that is available.
+     */
+    private function setCachedValue($k, $v)
+    {
+        if (is_null($this->cache)) {
+            return;
+        }
+
+        $key = $this->getFullCacheKey($k);
+        if (is_null($key)) {
+            return;
+        }
+
+        $cacheItem = $this->cache->getItem($key);
+        $cacheItem->set($v);
+        $cacheItem->expiresAfter($this->cacheConfig['lifetime']);
+        return $this->cache->save($cacheItem);
+    }
+
+    private function getFullCacheKey($key)
+    {
+        if (is_null($key)) {
+            return;
+        }
+
+        $key = $this->cacheConfig['prefix'] . $key;
+
+        // ensure we do not have illegal characters
+        $key = preg_replace('|[^a-zA-Z0-9_\.!]|', '', $key);
+
+        // Hash keys if they exceed $maxKeyLength (defaults to 64)
+        if ($this->maxKeyLength && strlen($key) > $this->maxKeyLength) {
+            $key = substr(hash('sha256', $key), 0, $this->maxKeyLength);
+        }
+
+        return $key;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/AppIdentityCredentials.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/AppIdentityCredentials.php
new file mode 100644
index 0000000..d0ba703
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/AppIdentityCredentials.php
@@ -0,0 +1,159 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Credentials;
+
+/*
+ * The AppIdentityService class is automatically defined on App Engine,
+ * so including this dependency is not necessary, and will result in a
+ * PHP fatal error in the App Engine environment.
+ */
+use google\appengine\api\app_identity\AppIdentityService;
+use Google\Auth\CredentialsLoader;
+
+/**
+ * AppIdentityCredentials supports authorization on Google App Engine.
+ *
+ * It can be used to authorize requests using the AuthTokenMiddleware or
+ * AuthTokenSubscriber, but will only succeed if being run on App Engine:
+ *
+ *   use Google\Auth\Credentials\AppIdentityCredentials;
+ *   use Google\Auth\Middleware\AuthTokenMiddleware;
+ *   use GuzzleHttp\Client;
+ *   use GuzzleHttp\HandlerStack;
+ *
+ *   $gae = new AppIdentityCredentials('https://www.googleapis.com/auth/books');
+ *   $middleware = new AuthTokenMiddleware($gae);
+ *   $stack = HandlerStack::create();
+ *   $stack->push($middleware);
+ *
+ *   $client = new Client([
+ *       'handler' => $stack,
+ *       'base_uri' => 'https://www.googleapis.com/books/v1',
+ *       'auth' => 'google_auth'
+ *   ]);
+ *
+ *   $res = $client->get('volumes?q=Henry+David+Thoreau&country=US');
+ */
+class AppIdentityCredentials extends CredentialsLoader
+{
+    /**
+     * Result of fetchAuthToken.
+     *
+     * @array
+     */
+    protected $lastReceivedToken;
+
+    /**
+     * Array of OAuth2 scopes to be requested.
+     */
+    private $scope;
+
+    public function __construct($scope = array())
+    {
+        $this->scope = $scope;
+    }
+
+    /**
+     * Determines if this an App Engine instance, by accessing the
+     * SERVER_SOFTWARE environment variable (prod) or the APPENGINE_RUNTIME
+     * environment variable (dev).
+     *
+     * @return true if this an App Engine Instance, false otherwise
+     */
+    public static function onAppEngine()
+    {
+        $appEngineProduction = isset($_SERVER['SERVER_SOFTWARE']) &&
+            0 === strpos($_SERVER['SERVER_SOFTWARE'], 'Google App Engine');
+        if ($appEngineProduction) {
+            return true;
+        }
+        $appEngineDevAppServer = isset($_SERVER['APPENGINE_RUNTIME']) &&
+            $_SERVER['APPENGINE_RUNTIME'] == 'php';
+        if ($appEngineDevAppServer) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Implements FetchAuthTokenInterface#fetchAuthToken.
+     *
+     * Fetches the auth tokens using the AppIdentityService if available.
+     * As the AppIdentityService uses protobufs to fetch the access token,
+     * the GuzzleHttp\ClientInterface instance passed in will not be used.
+     *
+     * @param callable $httpHandler callback which delivers psr7 request
+     *
+     * @return array the auth metadata:
+     *  array(2) {
+     *   ["access_token"]=>
+     *   string(3) "xyz"
+     *   ["expiration_time"]=>
+     *   string(10) "1444339905"
+     *  }
+     *
+     * @throws \Exception
+     */
+    public function fetchAuthToken(callable $httpHandler = null)
+    {
+        if (!self::onAppEngine()) {
+            return array();
+        }
+
+        if (!class_exists('google\appengine\api\app_identity\AppIdentityService')) {
+            throw new \Exception(
+                'This class must be run in App Engine, or you must include the AppIdentityService '
+                . 'mock class defined in tests/mocks/AppIdentityService.php'
+            );
+        }
+
+        // AppIdentityService expects an array when multiple scopes are supplied
+        $scope = is_array($this->scope) ? $this->scope : explode(' ', $this->scope);
+
+        $token = AppIdentityService::getAccessToken($scope);
+        $this->lastReceivedToken = $token;
+
+        return $token;
+    }
+
+    /**
+     * @return array|null
+     */
+    public function getLastReceivedToken()
+    {
+        if ($this->lastReceivedToken) {
+            return [
+                'access_token' => $this->lastReceivedToken['access_token'],
+                'expires_at' => $this->lastReceivedToken['expiration_time'],
+            ];
+        }
+
+        return null;
+    }
+
+    /**
+     * Caching is handled by the underlying AppIdentityService, return empty string
+     * to prevent caching.
+     *
+     * @return string
+     */
+    public function getCacheKey()
+    {
+        return '';
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/GCECredentials.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/GCECredentials.php
new file mode 100644
index 0000000..4311529
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/GCECredentials.php
@@ -0,0 +1,219 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Credentials;
+
+use Google\Auth\CredentialsLoader;
+use Google\Auth\HttpHandler\HttpHandlerFactory;
+use GuzzleHttp\Exception\ClientException;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Exception\ServerException;
+use GuzzleHttp\Psr7\Request;
+
+/**
+ * GCECredentials supports authorization on Google Compute Engine.
+ *
+ * It can be used to authorize requests using the AuthTokenMiddleware, but will
+ * only succeed if being run on GCE:
+ *
+ *   use Google\Auth\Credentials\GCECredentials;
+ *   use Google\Auth\Middleware\AuthTokenMiddleware;
+ *   use GuzzleHttp\Client;
+ *   use GuzzleHttp\HandlerStack;
+ *
+ *   $gce = new GCECredentials();
+ *   $middleware = new AuthTokenMiddleware($gce);
+ *   $stack = HandlerStack::create();
+ *   $stack->push($middleware);
+ *
+ *   $client = new Client([
+ *      'handler' => $stack,
+ *      'base_uri' => 'https://www.googleapis.com/taskqueue/v1beta2/projects/',
+ *      'auth' => 'google_auth'
+ *   ]);
+ *
+ *   $res = $client->get('myproject/taskqueues/myqueue');
+ */
+class GCECredentials extends CredentialsLoader
+{
+    const cacheKey = 'GOOGLE_AUTH_PHP_GCE';
+    /**
+     * The metadata IP address on appengine instances.
+     *
+     * The IP is used instead of the domain 'metadata' to avoid slow responses
+     * when not on Compute Engine.
+     */
+    const METADATA_IP = '169.254.169.254';
+
+    /**
+     * The metadata path of the default token.
+     */
+    const TOKEN_URI_PATH = 'v1/instance/service-accounts/default/token';
+
+    /**
+     * The header whose presence indicates GCE presence.
+     */
+    const FLAVOR_HEADER = 'Metadata-Flavor';
+
+    /**
+     * Flag used to ensure that the onGCE test is only done once;.
+     *
+     * @var bool
+     */
+    private $hasCheckedOnGce = false;
+
+    /**
+     * Flag that stores the value of the onGCE check.
+     *
+     * @var bool
+     */
+    private $isOnGce = false;
+
+    /**
+     * Result of fetchAuthToken.
+     */
+    protected $lastReceivedToken;
+
+    /**
+     * The full uri for accessing the default token.
+     *
+     * @return string
+     */
+    public static function getTokenUri()
+    {
+        $base = 'http://' . self::METADATA_IP . '/computeMetadata/';
+
+        return $base . self::TOKEN_URI_PATH;
+    }
+
+    /**
+     * Determines if this an App Engine Flexible instance, by accessing the
+     * GAE_VM environment variable.
+     *
+     * @return true if this an App Engine Flexible Instance, false otherwise
+     */
+    public static function onAppEngineFlexible()
+    {
+        return isset($_SERVER['GAE_VM']) && 'true' === $_SERVER['GAE_VM'];
+    }
+
+    /**
+     * Determines if this a GCE instance, by accessing the expected metadata
+     * host.
+     * If $httpHandler is not specified a the default HttpHandler is used.
+     *
+     * @param callable $httpHandler callback which delivers psr7 request
+     *
+     * @return true if this a GCEInstance false otherwise
+     */
+    public static function onGce(callable $httpHandler = null)
+    {
+        if (is_null($httpHandler)) {
+            $httpHandler = HttpHandlerFactory::build();
+        }
+        $checkUri = 'http://' . self::METADATA_IP;
+        try {
+            // Comment from: oauth2client/client.py
+            //
+            // Note: the explicit `timeout` below is a workaround. The underlying
+            // issue is that resolving an unknown host on some networks will take
+            // 20-30 seconds; making this timeout short fixes the issue, but
+            // could lead to false negatives in the event that we are on GCE, but
+            // the metadata resolution was particularly slow. The latter case is
+            // "unlikely".
+            $resp = $httpHandler(
+                new Request('GET', $checkUri),
+                ['timeout' => 0.3]
+            );
+
+            return $resp->getHeaderLine(self::FLAVOR_HEADER) == 'Google';
+        } catch (ClientException $e) {
+            return false;
+        } catch (ServerException $e) {
+            return false;
+        } catch (RequestException $e) {
+            return false;
+        }
+    }
+
+    /**
+     * Implements FetchAuthTokenInterface#fetchAuthToken.
+     *
+     * Fetches the auth tokens from the GCE metadata host if it is available.
+     * If $httpHandler is not specified a the default HttpHandler is used.
+     *
+     * @param callable $httpHandler callback which delivers psr7 request
+     *
+     * @return array the response
+     *
+     * @throws \Exception
+     */
+    public function fetchAuthToken(callable $httpHandler = null)
+    {
+        if (is_null($httpHandler)) {
+            $httpHandler = HttpHandlerFactory::build();
+        }
+        if (!$this->hasCheckedOnGce) {
+            $this->isOnGce = self::onGce($httpHandler);
+        }
+        if (!$this->isOnGce) {
+            return array();  // return an empty array with no access token
+        }
+        $resp = $httpHandler(
+            new Request(
+                'GET',
+                self::getTokenUri(),
+                [self::FLAVOR_HEADER => 'Google']
+            )
+        );
+        $body = (string)$resp->getBody();
+
+        // Assume it's JSON; if it's not throw an exception
+        if (null === $json = json_decode($body, true)) {
+            throw new \Exception('Invalid JSON response');
+        }
+
+        // store this so we can retrieve it later
+        $this->lastReceivedToken = $json;
+        $this->lastReceivedToken['expires_at'] = time() + $json['expires_in'];
+
+        return $json;
+    }
+
+    /**
+     * @return string
+     */
+    public function getCacheKey()
+    {
+        return self::cacheKey;
+    }
+
+    /**
+     * @return array|null
+     */
+    public function getLastReceivedToken()
+    {
+        if ($this->lastReceivedToken) {
+            return [
+                'access_token' => $this->lastReceivedToken['access_token'],
+                'expires_at' => $this->lastReceivedToken['expires_at'],
+            ];
+        }
+
+        return null;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/IAMCredentials.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/IAMCredentials.php
new file mode 100644
index 0000000..0d2a37d
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/IAMCredentials.php
@@ -0,0 +1,89 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Credentials;
+
+/**
+ * Authenticates requests using IAM credentials.
+ */
+class IAMCredentials
+{
+    const SELECTOR_KEY = 'x-goog-iam-authority-selector';
+    const TOKEN_KEY = 'x-goog-iam-authorization-token';
+
+    /**
+     * @var string
+     */
+    private $selector;
+
+    /**
+     * @var string
+     */
+    private $token;
+
+    /**
+     * @param $selector string the IAM selector
+     * @param $token string the IAM token
+     */
+    public function __construct($selector, $token)
+    {
+        if (!is_string($selector)) {
+            throw new \InvalidArgumentException(
+                'selector must be a string');
+        }
+        if (!is_string($token)) {
+            throw new \InvalidArgumentException(
+                'token must be a string');
+        }
+
+        $this->selector = $selector;
+        $this->token = $token;
+    }
+
+    /**
+     * export a callback function which updates runtime metadata.
+     *
+     * @return array updateMetadata function
+     */
+    public function getUpdateMetadataFunc()
+    {
+        return array($this, 'updateMetadata');
+    }
+
+    /**
+     * Updates metadata with the appropriate header metadata.
+     *
+     * @param array $metadata metadata hashmap
+     * @param string $unusedAuthUri optional auth uri
+     * @param callable $httpHandler callback which delivers psr7 request
+     *        Note: this param is unused here, only included here for
+     *        consistency with other credentials class
+     *
+     * @return array updated metadata hashmap
+     */
+    public function updateMetadata(
+        $metadata,
+        $unusedAuthUri = null,
+        callable $httpHandler = null
+    ) {
+        $metadata_copy = $metadata;
+        $metadata_copy[self::SELECTOR_KEY] = $this->selector;
+        $metadata_copy[self::TOKEN_KEY] = $this->token;
+
+        return $metadata_copy;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/ServiceAccountCredentials.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/ServiceAccountCredentials.php
new file mode 100644
index 0000000..db391ec
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/ServiceAccountCredentials.php
@@ -0,0 +1,177 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Credentials;
+
+use Google\Auth\CredentialsLoader;
+use Google\Auth\OAuth2;
+
+/**
+ * ServiceAccountCredentials supports authorization using a Google service
+ * account.
+ *
+ * (cf https://developers.google.com/accounts/docs/OAuth2ServiceAccount)
+ *
+ * It's initialized using the json key file that's downloadable from developer
+ * console, which should contain a private_key and client_email fields that it
+ * uses.
+ *
+ * Use it with AuthTokenMiddleware to authorize http requests:
+ *
+ *   use Google\Auth\Credentials\ServiceAccountCredentials;
+ *   use Google\Auth\Middleware\AuthTokenMiddleware;
+ *   use GuzzleHttp\Client;
+ *   use GuzzleHttp\HandlerStack;
+ *
+ *   $sa = new ServiceAccountCredentials(
+ *       'https://www.googleapis.com/auth/taskqueue',
+ *       '/path/to/your/json/key_file.json'
+ *   );
+ *   $middleware = new AuthTokenMiddleware($sa);
+ *   $stack = HandlerStack::create();
+ *   $stack->push($middleware);
+ *
+ *   $client = new Client([
+ *       'handler' => $stack,
+ *       'base_uri' => 'https://www.googleapis.com/taskqueue/v1beta2/projects/',
+ *       'auth' => 'google_auth' // authorize all requests
+ *   ]);
+ *
+ *   $res = $client->get('myproject/taskqueues/myqueue');
+ */
+class ServiceAccountCredentials extends CredentialsLoader
+{
+    /**
+     * The OAuth2 instance used to conduct authorization.
+     *
+     * @var OAuth2
+     */
+    protected $auth;
+
+    /**
+     * Create a new ServiceAccountCredentials.
+     *
+     * @param string|array $scope the scope of the access request, expressed
+     *   either as an Array or as a space-delimited String.
+     * @param string|array $jsonKey JSON credential file path or JSON credentials
+     *   as an associative array
+     * @param string $sub an email address account to impersonate, in situations when
+     *   the service account has been delegated domain wide access.
+     */
+    public function __construct(
+        $scope,
+        $jsonKey,
+        $sub = null
+    ) {
+        if (is_string($jsonKey)) {
+            if (!file_exists($jsonKey)) {
+                throw new \InvalidArgumentException('file does not exist');
+            }
+            $jsonKeyStream = file_get_contents($jsonKey);
+            if (!$jsonKey = json_decode($jsonKeyStream, true)) {
+                throw new \LogicException('invalid json for auth config');
+            }
+        }
+        if (!array_key_exists('client_email', $jsonKey)) {
+            throw new \InvalidArgumentException(
+                'json key is missing the client_email field');
+        }
+        if (!array_key_exists('private_key', $jsonKey)) {
+            throw new \InvalidArgumentException(
+                'json key is missing the private_key field');
+        }
+        $this->auth = new OAuth2([
+            'audience' => self::TOKEN_CREDENTIAL_URI,
+            'issuer' => $jsonKey['client_email'],
+            'scope' => $scope,
+            'signingAlgorithm' => 'RS256',
+            'signingKey' => $jsonKey['private_key'],
+            'sub' => $sub,
+            'tokenCredentialUri' => self::TOKEN_CREDENTIAL_URI,
+        ]);
+    }
+
+    /**
+     * @param callable $httpHandler
+     *
+     * @return array
+     */
+    public function fetchAuthToken(callable $httpHandler = null)
+    {
+        return $this->auth->fetchAuthToken($httpHandler);
+    }
+
+    /**
+     * @return string
+     */
+    public function getCacheKey()
+    {
+        $key = $this->auth->getIssuer() . ':' . $this->auth->getCacheKey();
+        if ($sub = $this->auth->getSub()) {
+            $key .= ':' . $sub;
+        }
+
+        return $key;
+    }
+
+    /**
+     * @return array
+     */
+    public function getLastReceivedToken()
+    {
+        return $this->auth->getLastReceivedToken();
+    }
+
+    /**
+     * Updates metadata with the authorization token.
+     *
+     * @param array $metadata metadata hashmap
+     * @param string $authUri optional auth uri
+     * @param callable $httpHandler callback which delivers psr7 request
+     *
+     * @return array updated metadata hashmap
+     */
+    public function updateMetadata(
+        $metadata,
+        $authUri = null,
+        callable $httpHandler = null
+    ) {
+        // scope exists. use oauth implementation
+        $scope = $this->auth->getScope();
+        if (!is_null($scope)) {
+            return parent::updateMetadata($metadata, $authUri, $httpHandler);
+        }
+
+        // no scope found. create jwt with the auth uri
+        $credJson = array(
+            'private_key' => $this->auth->getSigningKey(),
+            'client_email' => $this->auth->getIssuer(),
+        );
+        $jwtCreds = new ServiceAccountJwtAccessCredentials($credJson);
+
+        return $jwtCreds->updateMetadata($metadata, $authUri, $httpHandler);
+    }
+
+    /**
+     * @param string $sub an email address account to impersonate, in situations when
+     *   the service account has been delegated domain wide access.
+     */
+    public function setSub($sub)
+    {
+        $this->auth->setSub($sub);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/ServiceAccountJwtAccessCredentials.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/ServiceAccountJwtAccessCredentials.php
new file mode 100644
index 0000000..28cc709
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/ServiceAccountJwtAccessCredentials.php
@@ -0,0 +1,131 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Credentials;
+
+use Google\Auth\CredentialsLoader;
+use Google\Auth\OAuth2;
+
+/**
+ * Authenticates requests using Google's Service Account credentials via
+ * JWT Access.
+ *
+ * This class allows authorizing requests for service accounts directly
+ * from credentials from a json key file downloaded from the developer
+ * console (via 'Generate new Json Key').  It is not part of any OAuth2
+ * flow, rather it creates a JWT and sends that as a credential.
+ */
+class ServiceAccountJwtAccessCredentials extends CredentialsLoader
+{
+    /**
+     * The OAuth2 instance used to conduct authorization.
+     *
+     * @var OAuth2
+     */
+    protected $auth;
+
+    /**
+     * Create a new ServiceAccountJwtAccessCredentials.
+     *
+     * @param string|array $jsonKey JSON credential file path or JSON credentials
+     *   as an associative array
+     */
+    public function __construct($jsonKey)
+    {
+        if (is_string($jsonKey)) {
+            if (!file_exists($jsonKey)) {
+                throw new \InvalidArgumentException('file does not exist');
+            }
+            $jsonKeyStream = file_get_contents($jsonKey);
+            if (!$jsonKey = json_decode($jsonKeyStream, true)) {
+                throw new \LogicException('invalid json for auth config');
+            }
+        }
+        if (!array_key_exists('client_email', $jsonKey)) {
+            throw new \InvalidArgumentException(
+                'json key is missing the client_email field');
+        }
+        if (!array_key_exists('private_key', $jsonKey)) {
+            throw new \InvalidArgumentException(
+                'json key is missing the private_key field');
+        }
+        $this->auth = new OAuth2([
+            'issuer' => $jsonKey['client_email'],
+            'sub' => $jsonKey['client_email'],
+            'signingAlgorithm' => 'RS256',
+            'signingKey' => $jsonKey['private_key'],
+        ]);
+    }
+
+    /**
+     * Updates metadata with the authorization token.
+     *
+     * @param array $metadata metadata hashmap
+     * @param string $authUri optional auth uri
+     * @param callable $httpHandler callback which delivers psr7 request
+     *
+     * @return array updated metadata hashmap
+     */
+    public function updateMetadata(
+        $metadata,
+        $authUri = null,
+        callable $httpHandler = null
+    ) {
+        if (empty($authUri)) {
+            return $metadata;
+        }
+
+        $this->auth->setAudience($authUri);
+
+        return parent::updateMetadata($metadata, $authUri, $httpHandler);
+    }
+
+    /**
+     * Implements FetchAuthTokenInterface#fetchAuthToken.
+     *
+     * @param callable $httpHandler
+     *
+     * @return array|void
+     */
+    public function fetchAuthToken(callable $httpHandler = null)
+    {
+        $audience = $this->auth->getAudience();
+        if (empty($audience)) {
+            return null;
+        }
+
+        $access_token = $this->auth->toJwt();
+
+        return array('access_token' => $access_token);
+    }
+
+    /**
+     * @return string
+     */
+    public function getCacheKey()
+    {
+        return $this->auth->getCacheKey();
+    }
+
+    /**
+     * @return array
+     */
+    public function getLastReceivedToken()
+    {
+        return $this->auth->getLastReceivedToken();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/UserRefreshCredentials.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/UserRefreshCredentials.php
new file mode 100644
index 0000000..6c7e5cf
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Credentials/UserRefreshCredentials.php
@@ -0,0 +1,110 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Credentials;
+
+use Google\Auth\CredentialsLoader;
+use Google\Auth\OAuth2;
+
+/**
+ * Authenticates requests using User Refresh credentials.
+ *
+ * This class allows authorizing requests from user refresh tokens.
+ *
+ * This the end of the result of a 3LO flow.  E.g, the end result of
+ * 'gcloud auth login' saves a file with these contents in well known
+ * location
+ *
+ * @see [Application Default Credentials](http://goo.gl/mkAHpZ)
+ */
+class UserRefreshCredentials extends CredentialsLoader
+{
+    /**
+     * The OAuth2 instance used to conduct authorization.
+     *
+     * @var OAuth2
+     */
+    protected $auth;
+
+    /**
+     * Create a new UserRefreshCredentials.
+     *
+     * @param string|array $scope the scope of the access request, expressed
+     *   either as an Array or as a space-delimited String.
+     * @param string|array $jsonKey JSON credential file path or JSON credentials
+     *   as an associative array
+     */
+    public function __construct(
+        $scope,
+        $jsonKey
+    ) {
+        if (is_string($jsonKey)) {
+            if (!file_exists($jsonKey)) {
+                throw new \InvalidArgumentException('file does not exist');
+            }
+            $jsonKeyStream = file_get_contents($jsonKey);
+            if (!$jsonKey = json_decode($jsonKeyStream, true)) {
+                throw new \LogicException('invalid json for auth config');
+            }
+        }
+        if (!array_key_exists('client_id', $jsonKey)) {
+            throw new \InvalidArgumentException(
+                'json key is missing the client_id field');
+        }
+        if (!array_key_exists('client_secret', $jsonKey)) {
+            throw new \InvalidArgumentException(
+                'json key is missing the client_secret field');
+        }
+        if (!array_key_exists('refresh_token', $jsonKey)) {
+            throw new \InvalidArgumentException(
+                'json key is missing the refresh_token field');
+        }
+        $this->auth = new OAuth2([
+            'clientId' => $jsonKey['client_id'],
+            'clientSecret' => $jsonKey['client_secret'],
+            'refresh_token' => $jsonKey['refresh_token'],
+            'scope' => $scope,
+            'tokenCredentialUri' => self::TOKEN_CREDENTIAL_URI,
+        ]);
+    }
+
+    /**
+     * @param callable $httpHandler
+     *
+     * @return array
+     */
+    public function fetchAuthToken(callable $httpHandler = null)
+    {
+        return $this->auth->fetchAuthToken($httpHandler);
+    }
+
+    /**
+     * @return string
+     */
+    public function getCacheKey()
+    {
+        return $this->auth->getClientId() . ':' . $this->auth->getCacheKey();
+    }
+
+    /**
+     * @return array
+     */
+    public function getLastReceivedToken()
+    {
+        return $this->auth->getLastReceivedToken();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/CredentialsLoader.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/CredentialsLoader.php
new file mode 100644
index 0000000..a21f005
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/CredentialsLoader.php
@@ -0,0 +1,210 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth;
+
+use Google\Auth\Credentials\ServiceAccountCredentials;
+use Google\Auth\Credentials\UserRefreshCredentials;
+
+/**
+ * CredentialsLoader contains the behaviour used to locate and find default
+ * credentials files on the file system.
+ */
+abstract class CredentialsLoader implements FetchAuthTokenInterface
+{
+    const TOKEN_CREDENTIAL_URI = 'https://www.googleapis.com/oauth2/v4/token';
+    const ENV_VAR = 'GOOGLE_APPLICATION_CREDENTIALS';
+    const WELL_KNOWN_PATH = 'gcloud/application_default_credentials.json';
+    const NON_WINDOWS_WELL_KNOWN_PATH_BASE = '.config';
+    const AUTH_METADATA_KEY = 'authorization';
+
+    /**
+     * @param string $cause
+     * @return string
+     */
+    private static function unableToReadEnv($cause)
+    {
+        $msg = 'Unable to read the credential file specified by ';
+        $msg .= ' GOOGLE_APPLICATION_CREDENTIALS: ';
+        $msg .= $cause;
+
+        return $msg;
+    }
+
+    /**
+     * @return bool
+     */
+    private static function isOnWindows()
+    {
+        return strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';
+    }
+
+    /**
+     * Load a JSON key from the path specified in the environment.
+     *
+     * Load a JSON key from the path specified in the environment
+     * variable GOOGLE_APPLICATION_CREDENTIALS. Return null if
+     * GOOGLE_APPLICATION_CREDENTIALS is not specified.
+     *
+     * @return array JSON key | null
+     */
+    public static function fromEnv()
+    {
+        $path = getenv(self::ENV_VAR);
+        if (empty($path)) {
+            return;
+        }
+        if (!file_exists($path)) {
+            $cause = 'file ' . $path . ' does not exist';
+            throw new \DomainException(self::unableToReadEnv($cause));
+        }
+        $jsonKey = file_get_contents($path);
+        return json_decode($jsonKey, true);
+    }
+
+    /**
+     * Load a JSON key from a well known path.
+     *
+     * The well known path is OS dependent:
+     * - windows: %APPDATA%/gcloud/application_default_credentials.json
+     * - others: $HOME/.config/gcloud/application_default_credentials.json
+     *
+     * If the file does not exists, this returns null.
+     *
+     * @return array JSON key | null
+     */
+    public static function fromWellKnownFile()
+    {
+        $rootEnv = self::isOnWindows() ? 'APPDATA' : 'HOME';
+        $path = [getenv($rootEnv)];
+        if (!self::isOnWindows()) {
+            $path[] = self::NON_WINDOWS_WELL_KNOWN_PATH_BASE;
+        }
+        $path[] = self::WELL_KNOWN_PATH;
+        $path = implode(DIRECTORY_SEPARATOR, $path);
+        if (!file_exists($path)) {
+            return;
+        }
+        $jsonKey = file_get_contents($path);
+        return json_decode($jsonKey, true);
+    }
+
+    /**
+     * Create a new Credentials instance.
+     *
+     * @param string|array $scope the scope of the access request, expressed
+     *   either as an Array or as a space-delimited String.
+     * @param array $jsonKey the JSON credentials.
+     *
+     * @return ServiceAccountCredentials|UserRefreshCredentials
+     */
+    public static function makeCredentials($scope, array $jsonKey)
+    {
+        if (!array_key_exists('type', $jsonKey)) {
+            throw new \InvalidArgumentException('json key is missing the type field');
+        }
+
+        if ($jsonKey['type'] == 'service_account') {
+            return new ServiceAccountCredentials($scope, $jsonKey);
+        } elseif ($jsonKey['type'] == 'authorized_user') {
+            return new UserRefreshCredentials($scope, $jsonKey);
+        } else {
+            throw new \InvalidArgumentException('invalid value in the type field');
+        }
+    }
+
+    /**
+     * Create an authorized HTTP Client from an instance of FetchAuthTokenInterface.
+     *
+     * @param FetchAuthTokenInterface $fetcher is used to fetch the auth token
+     * @param array $httpClientOptoins (optional) Array of request options to apply.
+     * @param callable $httpHandler (optional) http client to fetch the token.
+     * @param callable $tokenCallback (optional) function to be called when a new token is fetched.
+     *
+     * @return \GuzzleHttp\Client
+     */
+    public static function makeHttpClient(
+        FetchAuthTokenInterface $fetcher,
+        array $httpClientOptions = [],
+        callable $httpHandler = null,
+        callable $tokenCallback = null
+    ) {
+        $version = \GuzzleHttp\ClientInterface::VERSION;
+
+        switch ($version[0]) {
+            case '5':
+                $client = new \GuzzleHttp\Client($httpClientOptions);
+                $client->setDefaultOption('auth', 'google_auth');
+                $subscriber = new Subscriber\AuthTokenSubscriber(
+                    $fetcher,
+                    $httpHandler,
+                    $tokenCallback
+                );
+                $client->getEmitter()->attach($subscriber);
+                return $client;
+            case '6':
+                $middleware = new Middleware\AuthTokenMiddleware(
+                    $fetcher,
+                    $httpHandler,
+                    $tokenCallback
+                );
+                $stack = \GuzzleHttp\HandlerStack::create();
+                $stack->push($middleware);
+
+                return new \GuzzleHttp\Client([
+                   'handler' => $stack,
+                   'auth' => 'google_auth',
+                ] + $httpClientOptions);
+            default:
+                throw new \Exception('Version not supported');
+        }
+    }
+
+    /**
+     * export a callback function which updates runtime metadata.
+     *
+     * @return array updateMetadata function
+     */
+    public function getUpdateMetadataFunc()
+    {
+        return array($this, 'updateMetadata');
+    }
+
+    /**
+     * Updates metadata with the authorization token.
+     *
+     * @param array $metadata metadata hashmap
+     * @param string $authUri optional auth uri
+     * @param callable $httpHandler callback which delivers psr7 request
+     *
+     * @return array updated metadata hashmap
+     */
+    public function updateMetadata(
+        $metadata,
+        $authUri = null,
+        callable $httpHandler = null
+    ) {
+        $result = $this->fetchAuthToken($httpHandler);
+        if (!isset($result['access_token'])) {
+            return $metadata;
+        }
+        $metadata_copy = $metadata;
+        $metadata_copy[self::AUTH_METADATA_KEY] = array('Bearer ' . $result['access_token']);
+
+        return $metadata_copy;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/FetchAuthTokenCache.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/FetchAuthTokenCache.php
new file mode 100644
index 0000000..5b8e01b
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/FetchAuthTokenCache.php
@@ -0,0 +1,108 @@
+<?php
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth;
+
+use Psr\Cache\CacheItemPoolInterface;
+
+/**
+ * A class to implement caching for any object implementing
+ * FetchAuthTokenInterface
+ */
+class FetchAuthTokenCache implements FetchAuthTokenInterface
+{
+    use CacheTrait;
+
+    /**
+     * @var FetchAuthTokenInterface
+     */
+    private $fetcher;
+
+    /**
+     * @var array
+     */
+    private $cacheConfig;
+
+    /**
+     * @var CacheItemPoolInterface
+     */
+    private $cache;
+
+    public function __construct(
+        FetchAuthTokenInterface $fetcher,
+        array $cacheConfig = null,
+        CacheItemPoolInterface $cache
+    ) {
+        $this->fetcher = $fetcher;
+        $this->cache = $cache;
+        $this->cacheConfig = array_merge([
+            'lifetime' => 1500,
+            'prefix' => '',
+        ], (array) $cacheConfig);
+    }
+
+    /**
+     * Implements FetchAuthTokenInterface#fetchAuthToken.
+     *
+     * Checks the cache for a valid auth token and fetches the auth tokens
+     * from the supplied fetcher.
+     *
+     * @param callable $httpHandler callback which delivers psr7 request
+     *
+     * @return array the response
+     *
+     * @throws \Exception
+     */
+    public function fetchAuthToken(callable $httpHandler = null)
+    {
+        // Use the cached value if its available.
+        //
+        // TODO: correct caching; update the call to setCachedValue to set the expiry
+        // to the value returned with the auth token.
+        //
+        // TODO: correct caching; enable the cache to be cleared.
+        $cacheKey = $this->fetcher->getCacheKey();
+        $cached = $this->getCachedValue($cacheKey);
+        if (!empty($cached)) {
+            return ['access_token' => $cached];
+        }
+
+        $auth_token = $this->fetcher->fetchAuthToken($httpHandler);
+
+        if (isset($auth_token['access_token'])) {
+            $this->setCachedValue($cacheKey, $auth_token['access_token']);
+        }
+
+        return $auth_token;
+    }
+
+    /**
+     * @return string
+     */
+    public function getCacheKey()
+    {
+        return $this->getFullCacheKey($this->fetcher->getCacheKey());
+    }
+
+    /**
+     * @return array|null
+     */
+    public function getLastReceivedToken()
+    {
+        return $this->fetcher->getLastReceivedToken();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/FetchAuthTokenInterface.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/FetchAuthTokenInterface.php
new file mode 100644
index 0000000..e3d8d28
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/FetchAuthTokenInterface.php
@@ -0,0 +1,55 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth;
+
+/**
+ * An interface implemented by objects that can fetch auth tokens.
+ */
+interface FetchAuthTokenInterface
+{
+    /**
+     * Fetches the auth tokens based on the current state.
+     *
+     * @param callable $httpHandler callback which delivers psr7 request
+     *
+     * @return array a hash of auth tokens
+     */
+    public function fetchAuthToken(callable $httpHandler = null);
+
+    /**
+     * Obtains a key that can used to cache the results of #fetchAuthToken.
+     *
+     * If the value is empty, the auth token is not cached.
+     *
+     * @return string a key that may be used to cache the auth token.
+     */
+    public function getCacheKey();
+
+    /**
+     * Returns an associative array with the token and
+     * expiration time.
+     *
+     * @return null|array {
+     *      The last received access token.
+     *
+     * @var string $access_token The access token string.
+     * @var int $expires_at The time the token expires as a UNIX timestamp.
+     * }
+     */
+    public function getLastReceivedToken();
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/HttpHandler/Guzzle5HttpHandler.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/HttpHandler/Guzzle5HttpHandler.php
new file mode 100644
index 0000000..b43fc22
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/HttpHandler/Guzzle5HttpHandler.php
@@ -0,0 +1,128 @@
+<?php
+/**
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+namespace Google\Auth\HttpHandler;
+
+use Exception;
+use GuzzleHttp\ClientInterface;
+use GuzzleHttp\Message\ResponseInterface as Guzzle5ResponseInterface;
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\RejectedPromise;
+use GuzzleHttp\Psr7\Response;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+class Guzzle5HttpHandler
+{
+    /**
+     * @var ClientInterface
+     */
+    private $client;
+
+    /**
+     * @param ClientInterface $client
+     */
+    public function __construct(ClientInterface $client)
+    {
+        $this->client = $client;
+    }
+
+    /**
+     * Accepts a PSR-7 Request and an array of options and returns a PSR-7 response.
+     *
+     * @param RequestInterface $request
+     * @param array $options
+     *
+     * @return ResponseInterface
+     */
+    public function __invoke(RequestInterface $request, array $options = [])
+    {
+        $response = $this->client->send(
+            $this->createGuzzle5Request($request, $options)
+        );
+
+        return $this->createPsr7Response($response);
+    }
+
+    /**
+     * Accepts a PSR-7 request and an array of options and returns a PromiseInterface
+     *
+     * @param RequestInterface $request
+     * @param array $options
+     *
+     * @return Promise
+     */
+    public function async(RequestInterface $request, array $options = [])
+    {
+        if (!class_exists('GuzzleHttp\Promise\Promise')) {
+            throw new Exception('Install guzzlehttp/promises to use async with Guzzle 5');
+        }
+
+        $futureResponse = $this->client->send(
+            $this->createGuzzle5Request(
+                $request,
+                ['future' => true] + $options
+            )
+        );
+
+        $promise = new Promise(
+            function () use ($futureResponse) {
+                try {
+                    $futureResponse->wait();
+                } catch (Exception $e) {
+                    // The promise is already delivered when the exception is
+                    // thrown, so don't rethrow it.
+                }
+            },
+            [$futureResponse, 'cancel']
+        );
+
+        $futureResponse->then([$promise, 'resolve'], [$promise, 'reject']);
+
+        return $promise->then(
+            function (Guzzle5ResponseInterface $response) {
+                // Adapt the Guzzle 5 Response to a PSR-7 Response.
+                return $this->createPsr7Response($response);
+            },
+            function (Exception $e) {
+                return new RejectedPromise($e);
+            }
+        );
+    }
+
+    private function createGuzzle5Request(RequestInterface $request, array $options)
+    {
+        return $this->client->createRequest(
+            $request->getMethod(),
+            $request->getUri(),
+            array_merge_recursive([
+                'headers' => $request->getHeaders(),
+                'body' => $request->getBody(),
+            ], $options)
+        );
+    }
+
+    private function createPsr7Response(Guzzle5ResponseInterface $response)
+    {
+        return new Response(
+            $response->getStatusCode(),
+            $response->getHeaders() ?: [],
+            $response->getBody(),
+            $response->getProtocolVersion(),
+            $response->getReasonPhrase()
+        );
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/HttpHandler/Guzzle6HttpHandler.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/HttpHandler/Guzzle6HttpHandler.php
new file mode 100644
index 0000000..6dfe9a8
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/HttpHandler/Guzzle6HttpHandler.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Google\Auth\HttpHandler;
+
+use GuzzleHttp\ClientInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+class Guzzle6HttpHandler
+{
+    /**
+     * @var ClientInterface
+     */
+    private $client;
+
+    /**
+     * @param ClientInterface $client
+     */
+    public function __construct(ClientInterface $client)
+    {
+        $this->client = $client;
+    }
+
+    /**
+     * Accepts a PSR-7 request and an array of options and returns a PSR-7 response.
+     *
+     * @param RequestInterface $request
+     * @param array $options
+     *
+     * @return ResponseInterface
+     */
+    public function __invoke(RequestInterface $request, array $options = [])
+    {
+        return $this->client->send($request, $options);
+    }
+
+    /**
+     * Accepts a PSR-7 request and an array of options and returns a PromiseInterface
+     *
+     * @param RequestInterface $request
+     * @param array $options
+     *
+     * @return \GuzzleHttp\Promise\Promise
+     */
+    public function async(RequestInterface $request, array $options = [])
+    {
+        return $this->client->sendAsync($request, $options);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/HttpHandler/HttpHandlerFactory.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/HttpHandler/HttpHandlerFactory.php
new file mode 100644
index 0000000..1ede798
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/HttpHandler/HttpHandlerFactory.php
@@ -0,0 +1,47 @@
+<?php
+/**
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+namespace Google\Auth\HttpHandler;
+
+use GuzzleHttp\Client;
+use GuzzleHttp\ClientInterface;
+
+class HttpHandlerFactory
+{
+    /**
+     * Builds out a default http handler for the installed version of guzzle.
+     *
+     * @param ClientInterface $client
+     *
+     * @return Guzzle5HttpHandler|Guzzle6HttpHandler
+     *
+     * @throws \Exception
+     */
+    public static function build(ClientInterface $client = null)
+    {
+        $version = ClientInterface::VERSION;
+        $client = $client ?: new Client();
+
+        switch ($version[0]) {
+            case '5':
+                return new Guzzle5HttpHandler($client);
+            case '6':
+                return new Guzzle6HttpHandler($client);
+            default:
+                throw new \Exception('Version not supported');
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Middleware/AuthTokenMiddleware.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Middleware/AuthTokenMiddleware.php
new file mode 100644
index 0000000..ee2cf94
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Middleware/AuthTokenMiddleware.php
@@ -0,0 +1,126 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Middleware;
+
+use Google\Auth\FetchAuthTokenInterface;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * AuthTokenMiddleware is a Guzzle Middleware that adds an Authorization header
+ * provided by an object implementing FetchAuthTokenInterface.
+ *
+ * The FetchAuthTokenInterface#fetchAuthToken is used to obtain a hash; one of
+ * the values value in that hash is added as the authorization header.
+ *
+ * Requests will be accessed with the authorization header:
+ *
+ * 'authorization' 'Bearer <value of auth_token>'
+ */
+class AuthTokenMiddleware
+{
+    /**
+     * @var callback
+     */
+    private $httpHandler;
+
+    /**
+     * @var FetchAuthTokenInterface
+     */
+    private $fetcher;
+
+    /**
+     * @var callable
+     */
+    private $tokenCallback;
+
+    /**
+     * Creates a new AuthTokenMiddleware.
+     *
+     * @param FetchAuthTokenInterface $fetcher is used to fetch the auth token
+     * @param callable $httpHandler (optional) callback which delivers psr7 request
+     * @param callable $tokenCallback (optional) function to be called when a new token is fetched.
+     */
+    public function __construct(
+        FetchAuthTokenInterface $fetcher,
+        callable $httpHandler = null,
+        callable $tokenCallback = null
+    ) {
+        $this->fetcher = $fetcher;
+        $this->httpHandler = $httpHandler;
+        $this->tokenCallback = $tokenCallback;
+    }
+
+    /**
+     * Updates the request with an Authorization header when auth is 'google_auth'.
+     *
+     *   use Google\Auth\Middleware\AuthTokenMiddleware;
+     *   use Google\Auth\OAuth2;
+     *   use GuzzleHttp\Client;
+     *   use GuzzleHttp\HandlerStack;
+     *
+     *   $config = [..<oauth config param>.];
+     *   $oauth2 = new OAuth2($config)
+     *   $middleware = new AuthTokenMiddleware($oauth2);
+     *   $stack = HandlerStack::create();
+     *   $stack->push($middleware);
+     *
+     *   $client = new Client([
+     *       'handler' => $stack,
+     *       'base_uri' => 'https://www.googleapis.com/taskqueue/v1beta2/projects/',
+     *       'auth' => 'google_auth' // authorize all requests
+     *   ]);
+     *
+     *   $res = $client->get('myproject/taskqueues/myqueue');
+     *
+     * @param callable $handler
+     *
+     * @return \Closure
+     */
+    public function __invoke(callable $handler)
+    {
+        return function (RequestInterface $request, array $options) use ($handler) {
+            // Requests using "auth"="google_auth" will be authorized.
+            if (!isset($options['auth']) || $options['auth'] !== 'google_auth') {
+                return $handler($request, $options);
+            }
+
+            $request = $request->withHeader('authorization', 'Bearer ' . $this->fetchToken());
+
+            return $handler($request, $options);
+        };
+    }
+
+    /**
+     * Call fetcher to fetch the token.
+     *
+     * @return string
+     */
+    private function fetchToken()
+    {
+        $auth_tokens = $this->fetcher->fetchAuthToken($this->httpHandler);
+
+        if (array_key_exists('access_token', $auth_tokens)) {
+            // notify the callback if applicable
+            if ($this->tokenCallback) {
+                call_user_func($this->tokenCallback, $this->fetcher->getCacheKey(), $auth_tokens['access_token']);
+            }
+
+            return $auth_tokens['access_token'];
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Middleware/ScopedAccessTokenMiddleware.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Middleware/ScopedAccessTokenMiddleware.php
new file mode 100644
index 0000000..55f04d1
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Middleware/ScopedAccessTokenMiddleware.php
@@ -0,0 +1,175 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Middleware;
+
+use Google\Auth\CacheTrait;
+use Psr\Cache\CacheItemPoolInterface;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * ScopedAccessTokenMiddleware is a Guzzle Middleware that adds an Authorization
+ * header provided by a closure.
+ *
+ * The closure returns an access token, taking the scope, either a single
+ * string or an array of strings, as its value.  If provided, a cache will be
+ * used to preserve the access token for a given lifetime.
+ *
+ * Requests will be accessed with the authorization header:
+ *
+ * 'authorization' 'Bearer <value of auth_token>'
+ */
+class ScopedAccessTokenMiddleware
+{
+    use CacheTrait;
+
+    const DEFAULT_CACHE_LIFETIME = 1500;
+
+    /**
+     * @var CacheItemPoolInterface
+     */
+    private $cache;
+
+    /**
+     * @var array configuration
+     */
+    private $cacheConfig;
+
+    /**
+     * @var callable
+     */
+    private $tokenFunc;
+
+    /**
+     * @var array|string
+     */
+    private $scopes;
+
+    /**
+     * Creates a new ScopedAccessTokenMiddleware.
+     *
+     * @param callable $tokenFunc a token generator function
+     * @param array|string $scopes the token authentication scopes
+     * @param array $cacheConfig configuration for the cache when it's present
+     * @param CacheItemPoolInterface $cache an implementation of CacheItemPoolInterface
+     */
+    public function __construct(
+        callable $tokenFunc,
+        $scopes,
+        array $cacheConfig = null,
+        CacheItemPoolInterface $cache = null
+    ) {
+        $this->tokenFunc = $tokenFunc;
+        if (!(is_string($scopes) || is_array($scopes))) {
+            throw new \InvalidArgumentException(
+                'wants scope should be string or array');
+        }
+        $this->scopes = $scopes;
+
+        if (!is_null($cache)) {
+            $this->cache = $cache;
+            $this->cacheConfig = array_merge([
+                'lifetime' => self::DEFAULT_CACHE_LIFETIME,
+                'prefix' => '',
+            ], $cacheConfig);
+        }
+    }
+
+    /**
+     * Updates the request with an Authorization header when auth is 'scoped'.
+     *
+     *   E.g this could be used to authenticate using the AppEngine
+     *   AppIdentityService.
+     *
+     *   use google\appengine\api\app_identity\AppIdentityService;
+     *   use Google\Auth\Middleware\ScopedAccessTokenMiddleware;
+     *   use GuzzleHttp\Client;
+     *   use GuzzleHttp\HandlerStack;
+     *
+     *   $scope = 'https://www.googleapis.com/auth/taskqueue'
+     *   $middleware = new ScopedAccessTokenMiddleware(
+     *       'AppIdentityService::getAccessToken',
+     *       $scope,
+     *       [ 'prefix' => 'Google\Auth\ScopedAccessToken::' ],
+     *       $cache = new Memcache()
+     *   );
+     *   $stack = HandlerStack::create();
+     *   $stack->push($middleware);
+     *
+     *   $client = new Client([
+     *       'handler' => $stack,
+     *       'base_url' => 'https://www.googleapis.com/taskqueue/v1beta2/projects/',
+     *       'auth' => 'scoped' // authorize all requests
+     *   ]);
+     *
+     *   $res = $client->get('myproject/taskqueues/myqueue');
+     *
+     * @param callable $handler
+     *
+     * @return \Closure
+     */
+    public function __invoke(callable $handler)
+    {
+        return function (RequestInterface $request, array $options) use ($handler) {
+            // Requests using "auth"="scoped" will be authorized.
+            if (!isset($options['auth']) || $options['auth'] !== 'scoped') {
+                return $handler($request, $options);
+            }
+
+            $request = $request->withHeader('authorization', 'Bearer ' . $this->fetchToken());
+
+            return $handler($request, $options);
+        };
+    }
+
+    /**
+     * @return string
+     */
+    private function getCacheKey()
+    {
+        $key = null;
+
+        if (is_string($this->scopes)) {
+            $key .= $this->scopes;
+        } elseif (is_array($this->scopes)) {
+            $key .= implode(':', $this->scopes);
+        }
+
+        return $key;
+    }
+
+    /**
+     * Determine if token is available in the cache, if not call tokenFunc to
+     * fetch it.
+     *
+     * @return string
+     */
+    private function fetchToken()
+    {
+        $cacheKey = $this->getCacheKey();
+        $cached = $this->getCachedValue($cacheKey);
+
+        if (!empty($cached)) {
+            return $cached;
+        }
+
+        $token = call_user_func($this->tokenFunc, $this->scopes);
+        $this->setCachedValue($cacheKey, $token);
+
+        return $token;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Middleware/SimpleMiddleware.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Middleware/SimpleMiddleware.php
new file mode 100644
index 0000000..c31fc65
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Middleware/SimpleMiddleware.php
@@ -0,0 +1,93 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Middleware;
+
+use GuzzleHttp\Psr7;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * SimpleMiddleware is a Guzzle Middleware that implements Google's Simple API
+ * access.
+ *
+ * Requests are accessed using the Simple API access developer key.
+ */
+class SimpleMiddleware
+{
+    /**
+     * @var array
+     */
+    private $config;
+
+    /**
+     * Create a new Simple plugin.
+     *
+     * The configuration array expects one option
+     * - key: required, otherwise InvalidArgumentException is thrown
+     *
+     * @param array $config Configuration array
+     */
+    public function __construct(array $config)
+    {
+        if (!isset($config['key'])) {
+            throw new \InvalidArgumentException('requires a key to have been set');
+        }
+
+        $this->config = array_merge(['key' => null], $config);
+    }
+
+    /**
+     * Updates the request query with the developer key if auth is set to simple.
+     *
+     *   use Google\Auth\Middleware\SimpleMiddleware;
+     *   use GuzzleHttp\Client;
+     *   use GuzzleHttp\HandlerStack;
+     *
+     *   $my_key = 'is not the same as yours';
+     *   $middleware = new SimpleMiddleware(['key' => $my_key]);
+     *   $stack = HandlerStack::create();
+     *   $stack->push($middleware);
+     *
+     *   $client = new Client([
+     *       'handler' => $stack,
+     *       'base_uri' => 'https://www.googleapis.com/discovery/v1/',
+     *       'auth' => 'simple'
+     *   ]);
+     *
+     *   $res = $client->get('drive/v2/rest');
+     *
+     * @param callable $handler
+     *
+     * @return \Closure
+     */
+    public function __invoke(callable $handler)
+    {
+        return function (RequestInterface $request, array $options) use ($handler) {
+            // Requests using "auth"="scoped" will be authorized.
+            if (!isset($options['auth']) || $options['auth'] !== 'simple') {
+                return $handler($request, $options);
+            }
+
+            $query = Psr7\parse_query($request->getUri()->getQuery());
+            $params = array_merge($query, $this->config);
+            $uri = $request->getUri()->withQuery(Psr7\build_query($params));
+            $request = $request->withUri($uri);
+
+            return $handler($request, $options);
+        };
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/OAuth2.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/OAuth2.php
new file mode 100644
index 0000000..3dbceeb
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/OAuth2.php
@@ -0,0 +1,1335 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth;
+
+use Google\Auth\HttpHandler\HttpHandlerFactory;
+use GuzzleHttp\Psr7;
+use GuzzleHttp\Psr7\Request;
+use InvalidArgumentException;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * OAuth2 supports authentication by OAuth2 2-legged flows.
+ *
+ * It primary supports
+ * - service account authorization
+ * - authorization where a user already has an access token
+ */
+class OAuth2 implements FetchAuthTokenInterface
+{
+    const DEFAULT_EXPIRY_SECONDS = 3600; // 1 hour
+    const DEFAULT_SKEW_SECONDS = 60; // 1 minute
+    const JWT_URN = 'urn:ietf:params:oauth:grant-type:jwt-bearer';
+
+    /**
+     * TODO: determine known methods from the keys of JWT::methods.
+     */
+    public static $knownSigningAlgorithms = array(
+        'HS256',
+        'HS512',
+        'HS384',
+        'RS256',
+    );
+
+    /**
+     * The well known grant types.
+     *
+     * @var array
+     */
+    public static $knownGrantTypes = array(
+        'authorization_code',
+        'refresh_token',
+        'password',
+        'client_credentials',
+    );
+
+    /**
+     * - authorizationUri
+     *   The authorization server's HTTP endpoint capable of
+     *   authenticating the end-user and obtaining authorization.
+     *
+     * @var UriInterface
+     */
+    private $authorizationUri;
+
+    /**
+     * - tokenCredentialUri
+     *   The authorization server's HTTP endpoint capable of issuing
+     *   tokens and refreshing expired tokens.
+     *
+     * @var UriInterface
+     */
+    private $tokenCredentialUri;
+
+    /**
+     * The redirection URI used in the initial request.
+     *
+     * @var string
+     */
+    private $redirectUri;
+
+    /**
+     * A unique identifier issued to the client to identify itself to the
+     * authorization server.
+     *
+     * @var string
+     */
+    private $clientId;
+
+    /**
+     * A shared symmetric secret issued by the authorization server, which is
+     * used to authenticate the client.
+     *
+     * @var string
+     */
+    private $clientSecret;
+
+    /**
+     * The resource owner's username.
+     *
+     * @var string
+     */
+    private $username;
+
+    /**
+     * The resource owner's password.
+     *
+     * @var string
+     */
+    private $password;
+
+    /**
+     * The scope of the access request, expressed either as an Array or as a
+     * space-delimited string.
+     *
+     * @var string
+     */
+    private $scope;
+
+    /**
+     * An arbitrary string designed to allow the client to maintain state.
+     *
+     * @var string
+     */
+    private $state;
+
+    /**
+     * The authorization code issued to this client.
+     *
+     * Only used by the authorization code access grant type.
+     *
+     * @var string
+     */
+    private $code;
+
+    /**
+     * The issuer ID when using assertion profile.
+     *
+     * @var string
+     */
+    private $issuer;
+
+    /**
+     * The target audience for assertions.
+     *
+     * @var string
+     */
+    private $audience;
+
+    /**
+     * The target sub when issuing assertions.
+     *
+     * @var string
+     */
+    private $sub;
+
+    /**
+     * The number of seconds assertions are valid for.
+     *
+     * @var int
+     */
+    private $expiry;
+
+    /**
+     * The signing key when using assertion profile.
+     *
+     * @var string
+     */
+    private $signingKey;
+
+    /**
+     * The signing algorithm when using an assertion profile.
+     *
+     * @var string
+     */
+    private $signingAlgorithm;
+
+    /**
+     * The refresh token associated with the access token to be refreshed.
+     *
+     * @var string
+     */
+    private $refreshToken;
+
+    /**
+     * The current access token.
+     *
+     * @var string
+     */
+    private $accessToken;
+
+    /**
+     * The current ID token.
+     *
+     * @var string
+     */
+    private $idToken;
+
+    /**
+     * The lifetime in seconds of the current access token.
+     *
+     * @var int
+     */
+    private $expiresIn;
+
+    /**
+     * The expiration time of the access token as a number of seconds since the
+     * unix epoch.
+     *
+     * @var int
+     */
+    private $expiresAt;
+
+    /**
+     * The issue time of the access token as a number of seconds since the unix
+     * epoch.
+     *
+     * @var int
+     */
+    private $issuedAt;
+
+    /**
+     * The current grant type.
+     *
+     * @var string
+     */
+    private $grantType;
+
+    /**
+     * When using an extension grant type, this is the set of parameters used by
+     * that extension.
+     */
+    private $extensionParams;
+
+    /**
+     * When using the toJwt function, these claims will be added to the JWT
+     * payload.
+     */
+    private $additionalClaims;
+
+    /**
+     * Create a new OAuthCredentials.
+     *
+     * The configuration array accepts various options
+     *
+     * - authorizationUri
+     *   The authorization server's HTTP endpoint capable of
+     *   authenticating the end-user and obtaining authorization.
+     *
+     * - tokenCredentialUri
+     *   The authorization server's HTTP endpoint capable of issuing
+     *   tokens and refreshing expired tokens.
+     *
+     * - clientId
+     *   A unique identifier issued to the client to identify itself to the
+     *   authorization server.
+     *
+     * - clientSecret
+     *   A shared symmetric secret issued by the authorization server,
+     *   which is used to authenticate the client.
+     *
+     * - scope
+     *   The scope of the access request, expressed either as an Array
+     *   or as a space-delimited String.
+     *
+     * - state
+     *   An arbitrary string designed to allow the client to maintain state.
+     *
+     * - redirectUri
+     *   The redirection URI used in the initial request.
+     *
+     * - username
+     *   The resource owner's username.
+     *
+     * - password
+     *   The resource owner's password.
+     *
+     * - issuer
+     *   Issuer ID when using assertion profile
+     *
+     * - audience
+     *   Target audience for assertions
+     *
+     * - expiry
+     *   Number of seconds assertions are valid for
+     *
+     * - signingKey
+     *   Signing key when using assertion profile
+     *
+     * - refreshToken
+     *   The refresh token associated with the access token
+     *   to be refreshed.
+     *
+     * - accessToken
+     *   The current access token for this client.
+     *
+     * - idToken
+     *   The current ID token for this client.
+     *
+     * - extensionParams
+     *   When using an extension grant type, this is the set of parameters used
+     *   by that extension.
+     *
+     * @param array $config Configuration array
+     */
+    public function __construct(array $config)
+    {
+        $opts = array_merge([
+            'expiry' => self::DEFAULT_EXPIRY_SECONDS,
+            'extensionParams' => [],
+            'authorizationUri' => null,
+            'redirectUri' => null,
+            'tokenCredentialUri' => null,
+            'state' => null,
+            'username' => null,
+            'password' => null,
+            'clientId' => null,
+            'clientSecret' => null,
+            'issuer' => null,
+            'sub' => null,
+            'audience' => null,
+            'signingKey' => null,
+            'signingAlgorithm' => null,
+            'scope' => null,
+            'additionalClaims' => [],
+        ], $config);
+
+        $this->setAuthorizationUri($opts['authorizationUri']);
+        $this->setRedirectUri($opts['redirectUri']);
+        $this->setTokenCredentialUri($opts['tokenCredentialUri']);
+        $this->setState($opts['state']);
+        $this->setUsername($opts['username']);
+        $this->setPassword($opts['password']);
+        $this->setClientId($opts['clientId']);
+        $this->setClientSecret($opts['clientSecret']);
+        $this->setIssuer($opts['issuer']);
+        $this->setSub($opts['sub']);
+        $this->setExpiry($opts['expiry']);
+        $this->setAudience($opts['audience']);
+        $this->setSigningKey($opts['signingKey']);
+        $this->setSigningAlgorithm($opts['signingAlgorithm']);
+        $this->setScope($opts['scope']);
+        $this->setExtensionParams($opts['extensionParams']);
+        $this->setAdditionalClaims($opts['additionalClaims']);
+        $this->updateToken($opts);
+    }
+
+    /**
+     * Verifies the idToken if present.
+     *
+     * - if none is present, return null
+     * - if present, but invalid, raises DomainException.
+     * - otherwise returns the payload in the idtoken as a PHP object.
+     *
+     * if $publicKey is null, the key is decoded without being verified.
+     *
+     * @param string $publicKey The public key to use to authenticate the token
+     * @param array $allowed_algs List of supported verification algorithms
+     *
+     * @return null|object
+     */
+    public function verifyIdToken($publicKey = null, $allowed_algs = array())
+    {
+        $idToken = $this->getIdToken();
+        if (is_null($idToken)) {
+            return null;
+        }
+
+        $resp = $this->jwtDecode($idToken, $publicKey, $allowed_algs);
+        if (!property_exists($resp, 'aud')) {
+            throw new \DomainException('No audience found the id token');
+        }
+        if ($resp->aud != $this->getAudience()) {
+            throw new \DomainException('Wrong audience present in the id token');
+        }
+
+        return $resp;
+    }
+
+    /**
+     * Obtains the encoded jwt from the instance data.
+     *
+     * @param array $config array optional configuration parameters
+     *
+     * @return string
+     */
+    public function toJwt(array $config = [])
+    {
+        if (is_null($this->getSigningKey())) {
+            throw new \DomainException('No signing key available');
+        }
+        if (is_null($this->getSigningAlgorithm())) {
+            throw new \DomainException('No signing algorithm specified');
+        }
+        $now = time();
+
+        $opts = array_merge([
+            'skew' => self::DEFAULT_SKEW_SECONDS,
+        ], $config);
+
+        $assertion = [
+            'iss' => $this->getIssuer(),
+            'aud' => $this->getAudience(),
+            'exp' => ($now + $this->getExpiry()),
+            'iat' => ($now - $opts['skew']),
+        ];
+        foreach ($assertion as $k => $v) {
+            if (is_null($v)) {
+                throw new \DomainException($k . ' should not be null');
+            }
+        }
+        if (!(is_null($this->getScope()))) {
+            $assertion['scope'] = $this->getScope();
+        }
+        if (!(is_null($this->getSub()))) {
+            $assertion['sub'] = $this->getSub();
+        }
+        $assertion += $this->getAdditionalClaims();
+
+        return $this->jwtEncode($assertion, $this->getSigningKey(),
+            $this->getSigningAlgorithm());
+    }
+
+    /**
+     * Generates a request for token credentials.
+     *
+     * @return RequestInterface the authorization Url.
+     */
+    public function generateCredentialsRequest()
+    {
+        $uri = $this->getTokenCredentialUri();
+        if (is_null($uri)) {
+            throw new \DomainException('No token credential URI was set.');
+        }
+
+        $grantType = $this->getGrantType();
+        $params = array('grant_type' => $grantType);
+        switch ($grantType) {
+            case 'authorization_code':
+                $params['code'] = $this->getCode();
+                $params['redirect_uri'] = $this->getRedirectUri();
+                $this->addClientCredentials($params);
+                break;
+            case 'password':
+                $params['username'] = $this->getUsername();
+                $params['password'] = $this->getPassword();
+                $this->addClientCredentials($params);
+                break;
+            case 'refresh_token':
+                $params['refresh_token'] = $this->getRefreshToken();
+                $this->addClientCredentials($params);
+                break;
+            case self::JWT_URN:
+                $params['assertion'] = $this->toJwt();
+                break;
+            default:
+                if (!is_null($this->getRedirectUri())) {
+                    # Grant type was supposed to be 'authorization_code', as there
+                    # is a redirect URI.
+                    throw new \DomainException('Missing authorization code');
+                }
+                unset($params['grant_type']);
+                if (!is_null($grantType)) {
+                    $params['grant_type'] = $grantType;
+                }
+                $params = array_merge($params, $this->getExtensionParams());
+        }
+
+        $headers = [
+            'Cache-Control' => 'no-store',
+            'Content-Type' => 'application/x-www-form-urlencoded',
+        ];
+
+        return new Request(
+            'POST',
+            $uri,
+            $headers,
+            Psr7\build_query($params)
+        );
+    }
+
+    /**
+     * Fetches the auth tokens based on the current state.
+     *
+     * @param callable $httpHandler callback which delivers psr7 request
+     *
+     * @return array the response
+     */
+    public function fetchAuthToken(callable $httpHandler = null)
+    {
+        if (is_null($httpHandler)) {
+            $httpHandler = HttpHandlerFactory::build();
+        }
+
+        $response = $httpHandler($this->generateCredentialsRequest());
+        $credentials = $this->parseTokenResponse($response);
+        $this->updateToken($credentials);
+
+        return $credentials;
+    }
+
+    /**
+     * Obtains a key that can used to cache the results of #fetchAuthToken.
+     *
+     * The key is derived from the scopes.
+     *
+     * @return string a key that may be used to cache the auth token.
+     */
+    public function getCacheKey()
+    {
+        if (is_string($this->scope)) {
+            return $this->scope;
+        } elseif (is_array($this->scope)) {
+            return implode(':', $this->scope);
+        }
+
+        // If scope has not set, return null to indicate no caching.
+        return null;
+    }
+
+    /**
+     * Parses the fetched tokens.
+     *
+     * @param ResponseInterface $resp the response.
+     *
+     * @return array the tokens parsed from the response body.
+     *
+     * @throws \Exception
+     */
+    public function parseTokenResponse(ResponseInterface $resp)
+    {
+        $body = (string)$resp->getBody();
+        if ($resp->hasHeader('Content-Type') &&
+            $resp->getHeaderLine('Content-Type') == 'application/x-www-form-urlencoded'
+        ) {
+            $res = array();
+            parse_str($body, $res);
+
+            return $res;
+        } else {
+            // Assume it's JSON; if it's not throw an exception
+            if (null === $res = json_decode($body, true)) {
+                throw new \Exception('Invalid JSON response');
+            }
+
+            return $res;
+        }
+    }
+
+    /**
+     * Updates an OAuth 2.0 client.
+     *
+     * @example
+     *   client.updateToken([
+     *     'refresh_token' => 'n4E9O119d',
+     *     'access_token' => 'FJQbwq9',
+     *     'expires_in' => 3600
+     *   ])
+     *
+     * @param array $config
+     *  The configuration parameters related to the token.
+     *
+     *  - refresh_token
+     *    The refresh token associated with the access token
+     *    to be refreshed.
+     *
+     *  - access_token
+     *    The current access token for this client.
+     *
+     *  - id_token
+     *    The current ID token for this client.
+     *
+     *  - expires_in
+     *    The time in seconds until access token expiration.
+     *
+     *  - expires_at
+     *    The time as an integer number of seconds since the Epoch
+     *
+     *  - issued_at
+     *    The timestamp that the token was issued at.
+     */
+    public function updateToken(array $config)
+    {
+        $opts = array_merge([
+            'extensionParams' => [],
+            'access_token' => null,
+            'id_token' => null,
+            'expires_in' => null,
+            'expires_at' => null,
+            'issued_at' => null,
+        ], $config);
+
+        $this->setExpiresAt($opts['expires_at']);
+        $this->setExpiresIn($opts['expires_in']);
+        // By default, the token is issued at `Time.now` when `expiresIn` is set,
+        // but this can be used to supply a more precise time.
+        if (!is_null($opts['issued_at'])) {
+            $this->setIssuedAt($opts['issued_at']);
+        }
+
+        $this->setAccessToken($opts['access_token']);
+        $this->setIdToken($opts['id_token']);
+        // The refresh token should only be updated if a value is explicitly
+        // passed in, as some access token responses do not include a refresh
+        // token.
+        if (array_key_exists('refresh_token', $opts)) {
+            $this->setRefreshToken($opts['refresh_token']);
+        }
+    }
+
+    /**
+     * Builds the authorization Uri that the user should be redirected to.
+     *
+     * @param array $config configuration options that customize the return url
+     *
+     * @return UriInterface the authorization Url.
+     *
+     * @throws InvalidArgumentException
+     */
+    public function buildFullAuthorizationUri(array $config = [])
+    {
+        if (is_null($this->getAuthorizationUri())) {
+            throw new InvalidArgumentException(
+                'requires an authorizationUri to have been set');
+        }
+
+        $params = array_merge([
+            'response_type' => 'code',
+            'access_type' => 'offline',
+            'client_id' => $this->clientId,
+            'redirect_uri' => $this->redirectUri,
+            'state' => $this->state,
+            'scope' => $this->getScope(),
+        ], $config);
+
+        // Validate the auth_params
+        if (is_null($params['client_id'])) {
+            throw new InvalidArgumentException(
+                'missing the required client identifier');
+        }
+        if (is_null($params['redirect_uri'])) {
+            throw new InvalidArgumentException('missing the required redirect URI');
+        }
+        if (!empty($params['prompt']) && !empty($params['approval_prompt'])) {
+            throw new InvalidArgumentException(
+                'prompt and approval_prompt are mutually exclusive');
+        }
+
+        // Construct the uri object; return it if it is valid.
+        $result = clone $this->authorizationUri;
+        $existingParams = Psr7\parse_query($result->getQuery());
+
+        $result = $result->withQuery(
+            Psr7\build_query(array_merge($existingParams, $params))
+        );
+
+        if ($result->getScheme() != 'https') {
+            throw new InvalidArgumentException(
+                'Authorization endpoint must be protected by TLS');
+        }
+
+        return $result;
+    }
+
+    /**
+     * Sets the authorization server's HTTP endpoint capable of authenticating
+     * the end-user and obtaining authorization.
+     *
+     * @param string $uri
+     */
+    public function setAuthorizationUri($uri)
+    {
+        $this->authorizationUri = $this->coerceUri($uri);
+    }
+
+    /**
+     * Gets the authorization server's HTTP endpoint capable of authenticating
+     * the end-user and obtaining authorization.
+     *
+     * @return UriInterface
+     */
+    public function getAuthorizationUri()
+    {
+        return $this->authorizationUri;
+    }
+
+    /**
+     * Gets the authorization server's HTTP endpoint capable of issuing tokens
+     * and refreshing expired tokens.
+     *
+     * @return string
+     */
+    public function getTokenCredentialUri()
+    {
+        return $this->tokenCredentialUri;
+    }
+
+    /**
+     * Sets the authorization server's HTTP endpoint capable of issuing tokens
+     * and refreshing expired tokens.
+     *
+     * @param string $uri
+     */
+    public function setTokenCredentialUri($uri)
+    {
+        $this->tokenCredentialUri = $this->coerceUri($uri);
+    }
+
+    /**
+     * Gets the redirection URI used in the initial request.
+     *
+     * @return string
+     */
+    public function getRedirectUri()
+    {
+        return $this->redirectUri;
+    }
+
+    /**
+     * Sets the redirection URI used in the initial request.
+     *
+     * @param string $uri
+     */
+    public function setRedirectUri($uri)
+    {
+        if (is_null($uri)) {
+            $this->redirectUri = null;
+
+            return;
+        }
+        // redirect URI must be absolute
+        if (!$this->isAbsoluteUri($uri)) {
+            // "postmessage" is a reserved URI string in Google-land
+            // @see https://developers.google.com/identity/sign-in/web/server-side-flow
+            if ('postmessage' !== (string)$uri) {
+                throw new InvalidArgumentException(
+                    'Redirect URI must be absolute');
+            }
+        }
+        $this->redirectUri = (string)$uri;
+    }
+
+    /**
+     * Gets the scope of the access requests as a space-delimited String.
+     *
+     * @return string
+     */
+    public function getScope()
+    {
+        if (is_null($this->scope)) {
+            return $this->scope;
+        }
+
+        return implode(' ', $this->scope);
+    }
+
+    /**
+     * Sets the scope of the access request, expressed either as an Array or as
+     * a space-delimited String.
+     *
+     * @param string|array $scope
+     *
+     * @throws InvalidArgumentException
+     */
+    public function setScope($scope)
+    {
+        if (is_null($scope)) {
+            $this->scope = null;
+        } elseif (is_string($scope)) {
+            $this->scope = explode(' ', $scope);
+        } elseif (is_array($scope)) {
+            foreach ($scope as $s) {
+                $pos = strpos($s, ' ');
+                if ($pos !== false) {
+                    throw new InvalidArgumentException(
+                        'array scope values should not contain spaces');
+                }
+            }
+            $this->scope = $scope;
+        } else {
+            throw new InvalidArgumentException(
+                'scopes should be a string or array of strings');
+        }
+    }
+
+    /**
+     * Gets the current grant type.
+     *
+     * @return string
+     */
+    public function getGrantType()
+    {
+        if (!is_null($this->grantType)) {
+            return $this->grantType;
+        }
+
+        // Returns the inferred grant type, based on the current object instance
+        // state.
+        if (!is_null($this->code)) {
+            return 'authorization_code';
+        } elseif (!is_null($this->refreshToken)) {
+            return 'refresh_token';
+        } elseif (!is_null($this->username) && !is_null($this->password)) {
+            return 'password';
+        } elseif (!is_null($this->issuer) && !is_null($this->signingKey)) {
+            return self::JWT_URN;
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Sets the current grant type.
+     *
+     * @param $grantType
+     *
+     * @throws InvalidArgumentException
+     */
+    public function setGrantType($grantType)
+    {
+        if (in_array($grantType, self::$knownGrantTypes)) {
+            $this->grantType = $grantType;
+        } else {
+            // validate URI
+            if (!$this->isAbsoluteUri($grantType)) {
+                throw new InvalidArgumentException(
+                    'invalid grant type');
+            }
+            $this->grantType = (string)$grantType;
+        }
+    }
+
+    /**
+     * Gets an arbitrary string designed to allow the client to maintain state.
+     *
+     * @return string
+     */
+    public function getState()
+    {
+        return $this->state;
+    }
+
+    /**
+     * Sets an arbitrary string designed to allow the client to maintain state.
+     *
+     * @param string $state
+     */
+    public function setState($state)
+    {
+        $this->state = $state;
+    }
+
+    /**
+     * Gets the authorization code issued to this client.
+     */
+    public function getCode()
+    {
+        return $this->code;
+    }
+
+    /**
+     * Sets the authorization code issued to this client.
+     *
+     * @param string $code
+     */
+    public function setCode($code)
+    {
+        $this->code = $code;
+    }
+
+    /**
+     * Gets the resource owner's username.
+     */
+    public function getUsername()
+    {
+        return $this->username;
+    }
+
+    /**
+     * Sets the resource owner's username.
+     *
+     * @param string $username
+     */
+    public function setUsername($username)
+    {
+        $this->username = $username;
+    }
+
+    /**
+     * Gets the resource owner's password.
+     */
+    public function getPassword()
+    {
+        return $this->password;
+    }
+
+    /**
+     * Sets the resource owner's password.
+     *
+     * @param $password
+     */
+    public function setPassword($password)
+    {
+        $this->password = $password;
+    }
+
+    /**
+     * Sets a unique identifier issued to the client to identify itself to the
+     * authorization server.
+     */
+    public function getClientId()
+    {
+        return $this->clientId;
+    }
+
+    /**
+     * Sets a unique identifier issued to the client to identify itself to the
+     * authorization server.
+     *
+     * @param $clientId
+     */
+    public function setClientId($clientId)
+    {
+        $this->clientId = $clientId;
+    }
+
+    /**
+     * Gets a shared symmetric secret issued by the authorization server, which
+     * is used to authenticate the client.
+     */
+    public function getClientSecret()
+    {
+        return $this->clientSecret;
+    }
+
+    /**
+     * Sets a shared symmetric secret issued by the authorization server, which
+     * is used to authenticate the client.
+     *
+     * @param $clientSecret
+     */
+    public function setClientSecret($clientSecret)
+    {
+        $this->clientSecret = $clientSecret;
+    }
+
+    /**
+     * Gets the Issuer ID when using assertion profile.
+     */
+    public function getIssuer()
+    {
+        return $this->issuer;
+    }
+
+    /**
+     * Sets the Issuer ID when using assertion profile.
+     *
+     * @param string $issuer
+     */
+    public function setIssuer($issuer)
+    {
+        $this->issuer = $issuer;
+    }
+
+    /**
+     * Gets the target sub when issuing assertions.
+     */
+    public function getSub()
+    {
+        return $this->sub;
+    }
+
+    /**
+     * Sets the target sub when issuing assertions.
+     *
+     * @param string $sub
+     */
+    public function setSub($sub)
+    {
+        $this->sub = $sub;
+    }
+
+    /**
+     * Gets the target audience when issuing assertions.
+     */
+    public function getAudience()
+    {
+        return $this->audience;
+    }
+
+    /**
+     * Sets the target audience when issuing assertions.
+     *
+     * @param string $audience
+     */
+    public function setAudience($audience)
+    {
+        $this->audience = $audience;
+    }
+
+    /**
+     * Gets the signing key when using an assertion profile.
+     */
+    public function getSigningKey()
+    {
+        return $this->signingKey;
+    }
+
+    /**
+     * Sets the signing key when using an assertion profile.
+     *
+     * @param string $signingKey
+     */
+    public function setSigningKey($signingKey)
+    {
+        $this->signingKey = $signingKey;
+    }
+
+    /**
+     * Gets the signing algorithm when using an assertion profile.
+     *
+     * @return string
+     */
+    public function getSigningAlgorithm()
+    {
+        return $this->signingAlgorithm;
+    }
+
+    /**
+     * Sets the signing algorithm when using an assertion profile.
+     *
+     * @param string $signingAlgorithm
+     */
+    public function setSigningAlgorithm($signingAlgorithm)
+    {
+        if (is_null($signingAlgorithm)) {
+            $this->signingAlgorithm = null;
+        } elseif (!in_array($signingAlgorithm, self::$knownSigningAlgorithms)) {
+            throw new InvalidArgumentException('unknown signing algorithm');
+        } else {
+            $this->signingAlgorithm = $signingAlgorithm;
+        }
+    }
+
+    /**
+     * Gets the set of parameters used by extension when using an extension
+     * grant type.
+     */
+    public function getExtensionParams()
+    {
+        return $this->extensionParams;
+    }
+
+    /**
+     * Sets the set of parameters used by extension when using an extension
+     * grant type.
+     *
+     * @param $extensionParams
+     */
+    public function setExtensionParams($extensionParams)
+    {
+        $this->extensionParams = $extensionParams;
+    }
+
+    /**
+     * Gets the number of seconds assertions are valid for.
+     */
+    public function getExpiry()
+    {
+        return $this->expiry;
+    }
+
+    /**
+     * Sets the number of seconds assertions are valid for.
+     *
+     * @param int $expiry
+     */
+    public function setExpiry($expiry)
+    {
+        $this->expiry = $expiry;
+    }
+
+    /**
+     * Gets the lifetime of the access token in seconds.
+     */
+    public function getExpiresIn()
+    {
+        return $this->expiresIn;
+    }
+
+    /**
+     * Sets the lifetime of the access token in seconds.
+     *
+     * @param int $expiresIn
+     */
+    public function setExpiresIn($expiresIn)
+    {
+        if (is_null($expiresIn)) {
+            $this->expiresIn = null;
+            $this->issuedAt = null;
+        } else {
+            $this->issuedAt = time();
+            $this->expiresIn = (int)$expiresIn;
+        }
+    }
+
+    /**
+     * Gets the time the current access token expires at.
+     *
+     * @return int
+     */
+    public function getExpiresAt()
+    {
+        if (!is_null($this->expiresAt)) {
+            return $this->expiresAt;
+        } elseif (!is_null($this->issuedAt) && !is_null($this->expiresIn)) {
+            return $this->issuedAt + $this->expiresIn;
+        }
+
+        return null;
+    }
+
+    /**
+     * Returns true if the acccess token has expired.
+     *
+     * @return bool
+     */
+    public function isExpired()
+    {
+        $expiration = $this->getExpiresAt();
+        $now = time();
+
+        return !is_null($expiration) && $now >= $expiration;
+    }
+
+    /**
+     * Sets the time the current access token expires at.
+     *
+     * @param int $expiresAt
+     */
+    public function setExpiresAt($expiresAt)
+    {
+        $this->expiresAt = $expiresAt;
+    }
+
+    /**
+     * Gets the time the current access token was issued at.
+     */
+    public function getIssuedAt()
+    {
+        return $this->issuedAt;
+    }
+
+    /**
+     * Sets the time the current access token was issued at.
+     *
+     * @param int $issuedAt
+     */
+    public function setIssuedAt($issuedAt)
+    {
+        $this->issuedAt = $issuedAt;
+    }
+
+    /**
+     * Gets the current access token.
+     */
+    public function getAccessToken()
+    {
+        return $this->accessToken;
+    }
+
+    /**
+     * Sets the current access token.
+     *
+     * @param string $accessToken
+     */
+    public function setAccessToken($accessToken)
+    {
+        $this->accessToken = $accessToken;
+    }
+
+    /**
+     * Gets the current ID token.
+     */
+    public function getIdToken()
+    {
+        return $this->idToken;
+    }
+
+    /**
+     * Sets the current ID token.
+     *
+     * @param $idToken
+     */
+    public function setIdToken($idToken)
+    {
+        $this->idToken = $idToken;
+    }
+
+    /**
+     * Gets the refresh token associated with the current access token.
+     */
+    public function getRefreshToken()
+    {
+        return $this->refreshToken;
+    }
+
+    /**
+     * Sets the refresh token associated with the current access token.
+     *
+     * @param $refreshToken
+     */
+    public function setRefreshToken($refreshToken)
+    {
+        $this->refreshToken = $refreshToken;
+    }
+
+    /**
+     * Sets additional claims to be included in the JWT token
+     *
+     * @param array $additionalClaims
+     */
+    public function setAdditionalClaims(array $additionalClaims)
+    {
+        $this->additionalClaims = $additionalClaims;
+    }
+
+    /**
+     * Gets the additional claims to be included in the JWT token.
+     *
+     * @return array
+     */
+    public function getAdditionalClaims()
+    {
+        return $this->additionalClaims;
+    }
+
+    /**
+     * The expiration of the last received token.
+     *
+     * @return array
+     */
+    public function getLastReceivedToken()
+    {
+        if ($token = $this->getAccessToken()) {
+            return [
+                'access_token' => $token,
+                'expires_at' => $this->getExpiresAt(),
+            ];
+        }
+
+        return null;
+    }
+
+    /**
+     * @todo handle uri as array
+     *
+     * @param string $uri
+     *
+     * @return null|UriInterface
+     */
+    private function coerceUri($uri)
+    {
+        if (is_null($uri)) {
+            return;
+        }
+
+        return Psr7\uri_for($uri);
+    }
+
+    /**
+     * @param string $idToken
+     * @param string|array|null $publicKey
+     * @param array $allowedAlgs
+     *
+     * @return object
+     */
+    private function jwtDecode($idToken, $publicKey, $allowedAlgs)
+    {
+        if (class_exists('Firebase\JWT\JWT')) {
+            return \Firebase\JWT\JWT::decode($idToken, $publicKey, $allowedAlgs);
+        }
+
+        return \JWT::decode($idToken, $publicKey, $allowedAlgs);
+    }
+
+    private function jwtEncode($assertion, $signingKey, $signingAlgorithm)
+    {
+        if (class_exists('Firebase\JWT\JWT')) {
+            return \Firebase\JWT\JWT::encode($assertion, $signingKey,
+                $signingAlgorithm);
+        }
+
+        return \JWT::encode($assertion, $signingKey, $signingAlgorithm);
+    }
+
+    /**
+     * Determines if the URI is absolute based on its scheme and host or path
+     * (RFC 3986).
+     *
+     * @param string $uri
+     *
+     * @return bool
+     */
+    private function isAbsoluteUri($uri)
+    {
+        $uri = $this->coerceUri($uri);
+
+        return $uri->getScheme() && ($uri->getHost() || $uri->getPath());
+    }
+
+    /**
+     * @param array $params
+     *
+     * @return array
+     */
+    private function addClientCredentials(&$params)
+    {
+        $clientId = $this->getClientId();
+        $clientSecret = $this->getClientSecret();
+
+        if ($clientId && $clientSecret) {
+            $params['client_id'] = $clientId;
+            $params['client_secret'] = $clientSecret;
+        }
+
+        return $params;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Subscriber/AuthTokenSubscriber.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Subscriber/AuthTokenSubscriber.php
new file mode 100644
index 0000000..4c78426
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Subscriber/AuthTokenSubscriber.php
@@ -0,0 +1,118 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Subscriber;
+
+use Google\Auth\FetchAuthTokenInterface;
+use GuzzleHttp\Event\BeforeEvent;
+use GuzzleHttp\Event\RequestEvents;
+use GuzzleHttp\Event\SubscriberInterface;
+
+/**
+ * AuthTokenSubscriber is a Guzzle Subscriber that adds an Authorization header
+ * provided by an object implementing FetchAuthTokenInterface.
+ *
+ * The FetchAuthTokenInterface#fetchAuthToken is used to obtain a hash; one of
+ * the values value in that hash is added as the authorization header.
+ *
+ * Requests will be accessed with the authorization header:
+ *
+ * 'authorization' 'Bearer <value of auth_token>'
+ */
+class AuthTokenSubscriber implements SubscriberInterface
+{
+    /**
+     * @var callable
+     */
+    private $httpHandler;
+
+    /**
+     * @var FetchAuthTokenInterface
+     */
+    private $fetcher;
+
+    /**
+     * @var callable
+     */
+    private $tokenCallback;
+
+    /**
+     * Creates a new AuthTokenSubscriber.
+     *
+     * @param FetchAuthTokenInterface $fetcher is used to fetch the auth token
+     * @param callable $httpHandler (optional) http client to fetch the token.
+     * @param callable $tokenCallback (optional) function to be called when a new token is fetched.
+     */
+    public function __construct(
+        FetchAuthTokenInterface $fetcher,
+        callable $httpHandler = null,
+        callable $tokenCallback = null
+    ) {
+        $this->fetcher = $fetcher;
+        $this->httpHandler = $httpHandler;
+        $this->tokenCallback = $tokenCallback;
+    }
+
+    /**
+     * @return array
+     */
+    public function getEvents()
+    {
+        return ['before' => ['onBefore', RequestEvents::SIGN_REQUEST]];
+    }
+
+    /**
+     * Updates the request with an Authorization header when auth is 'fetched_auth_token'.
+     *
+     *   use GuzzleHttp\Client;
+     *   use Google\Auth\OAuth2;
+     *   use Google\Auth\Subscriber\AuthTokenSubscriber;
+     *
+     *   $config = [..<oauth config param>.];
+     *   $oauth2 = new OAuth2($config)
+     *   $subscriber = new AuthTokenSubscriber($oauth2);
+     *
+     *   $client = new Client([
+     *      'base_url' => 'https://www.googleapis.com/taskqueue/v1beta2/projects/',
+     *      'defaults' => ['auth' => 'google_auth']
+     *   ]);
+     *   $client->getEmitter()->attach($subscriber);
+     *
+     *   $res = $client->get('myproject/taskqueues/myqueue');
+     *
+     * @param BeforeEvent $event
+     */
+    public function onBefore(BeforeEvent $event)
+    {
+        // Requests using "auth"="google_auth" will be authorized.
+        $request = $event->getRequest();
+        if ($request->getConfig()['auth'] != 'google_auth') {
+            return;
+        }
+
+        // Fetch the auth token.
+        $auth_tokens = $this->fetcher->fetchAuthToken($this->httpHandler);
+        if (array_key_exists('access_token', $auth_tokens)) {
+            $request->setHeader('authorization', 'Bearer ' . $auth_tokens['access_token']);
+
+            // notify the callback if applicable
+            if ($this->tokenCallback) {
+                call_user_func($this->tokenCallback, $this->fetcher->getCacheKey(), $auth_tokens['access_token']);
+            }
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Subscriber/ScopedAccessTokenSubscriber.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Subscriber/ScopedAccessTokenSubscriber.php
new file mode 100644
index 0000000..63b4ca2
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Subscriber/ScopedAccessTokenSubscriber.php
@@ -0,0 +1,177 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Subscriber;
+
+use Google\Auth\CacheTrait;
+use GuzzleHttp\Event\BeforeEvent;
+use GuzzleHttp\Event\RequestEvents;
+use GuzzleHttp\Event\SubscriberInterface;
+use Psr\Cache\CacheItemPoolInterface;
+
+/**
+ * ScopedAccessTokenSubscriber is a Guzzle Subscriber that adds an Authorization
+ * header provided by a closure.
+ *
+ * The closure returns an access token, taking the scope, either a single
+ * string or an array of strings, as its value.  If provided, a cache will be
+ * used to preserve the access token for a given lifetime.
+ *
+ * Requests will be accessed with the authorization header:
+ *
+ * 'authorization' 'Bearer <access token obtained from the closure>'
+ */
+class ScopedAccessTokenSubscriber implements SubscriberInterface
+{
+    use CacheTrait;
+
+    const DEFAULT_CACHE_LIFETIME = 1500;
+
+    /**
+     * @var CacheItemPoolInterface
+     */
+    private $cache;
+
+    /**
+     * @var callable The access token generator function
+     */
+    private $tokenFunc;
+
+    /**
+     * @var array|string The scopes used to generate the token
+     */
+    private $scopes;
+
+    /**
+     * @var array
+     */
+    private $cacheConfig;
+
+    /**
+     * Creates a new ScopedAccessTokenSubscriber.
+     *
+     * @param callable $tokenFunc a token generator function
+     * @param array|string $scopes the token authentication scopes
+     * @param array $cacheConfig configuration for the cache when it's present
+     * @param CacheItemPoolInterface $cache an implementation of CacheItemPoolInterface
+     */
+    public function __construct(
+        callable $tokenFunc,
+        $scopes,
+        array $cacheConfig = null,
+        CacheItemPoolInterface $cache = null
+    ) {
+        $this->tokenFunc = $tokenFunc;
+        if (!(is_string($scopes) || is_array($scopes))) {
+            throw new \InvalidArgumentException(
+                'wants scope should be string or array');
+        }
+        $this->scopes = $scopes;
+
+        if (!is_null($cache)) {
+            $this->cache = $cache;
+            $this->cacheConfig = array_merge([
+                'lifetime' => self::DEFAULT_CACHE_LIFETIME,
+                'prefix' => '',
+            ], $cacheConfig);
+        }
+    }
+
+    /**
+     * @return array
+     */
+    public function getEvents()
+    {
+        return ['before' => ['onBefore', RequestEvents::SIGN_REQUEST]];
+    }
+
+    /**
+     * Updates the request with an Authorization header when auth is 'scoped'.
+     *
+     *   E.g this could be used to authenticate using the AppEngine
+     *   AppIdentityService.
+     *
+     *   use google\appengine\api\app_identity\AppIdentityService;
+     *   use Google\Auth\Subscriber\ScopedAccessTokenSubscriber;
+     *   use GuzzleHttp\Client;
+     *
+     *   $scope = 'https://www.googleapis.com/auth/taskqueue'
+     *   $subscriber = new ScopedAccessToken(
+     *       'AppIdentityService::getAccessToken',
+     *       $scope,
+     *       ['prefix' => 'Google\Auth\ScopedAccessToken::'],
+     *       $cache = new Memcache()
+     *   );
+     *
+     *   $client = new Client([
+     *       'base_url' => 'https://www.googleapis.com/taskqueue/v1beta2/projects/',
+     *       'defaults' => ['auth' => 'scoped']
+     *   ]);
+     *   $client->getEmitter()->attach($subscriber);
+     *
+     *   $res = $client->get('myproject/taskqueues/myqueue');
+     *
+     * @param BeforeEvent $event
+     */
+    public function onBefore(BeforeEvent $event)
+    {
+        // Requests using "auth"="scoped" will be authorized.
+        $request = $event->getRequest();
+        if ($request->getConfig()['auth'] != 'scoped') {
+            return;
+        }
+        $auth_header = 'Bearer ' . $this->fetchToken();
+        $request->setHeader('authorization', $auth_header);
+    }
+
+    /**
+     * @return string
+     */
+    private function getCacheKey()
+    {
+        $key = null;
+
+        if (is_string($this->scopes)) {
+            $key .= $this->scopes;
+        } elseif (is_array($this->scopes)) {
+            $key .= implode(':', $this->scopes);
+        }
+
+        return $key;
+    }
+
+    /**
+     * Determine if token is available in the cache, if not call tokenFunc to
+     * fetch it.
+     *
+     * @return string
+     */
+    private function fetchToken()
+    {
+        $cacheKey = $this->getCacheKey();
+        $cached = $this->getCachedValue($cacheKey);
+
+        if (!empty($cached)) {
+            return $cached;
+        }
+
+        $token = call_user_func($this->tokenFunc, $this->scopes);
+        $this->setCachedValue($cacheKey, $token);
+
+        return $token;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Subscriber/SimpleSubscriber.php b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Subscriber/SimpleSubscriber.php
new file mode 100644
index 0000000..0c56731
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/google/auth/src/Subscriber/SimpleSubscriber.php
@@ -0,0 +1,90 @@
+<?php
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+namespace Google\Auth\Subscriber;
+
+use GuzzleHttp\Event\BeforeEvent;
+use GuzzleHttp\Event\RequestEvents;
+use GuzzleHttp\Event\SubscriberInterface;
+
+/**
+ * SimpleSubscriber is a Guzzle Subscriber that implements Google's Simple API
+ * access.
+ *
+ * Requests are accessed using the Simple API access developer key.
+ */
+class SimpleSubscriber implements SubscriberInterface
+{
+    /**
+     * @var array
+     */
+    private $config;
+
+    /**
+     * Create a new Simple plugin.
+     *
+     * The configuration array expects one option
+     * - key: required, otherwise InvalidArgumentException is thrown
+     *
+     * @param array $config Configuration array
+     */
+    public function __construct(array $config)
+    {
+        if (!isset($config['key'])) {
+            throw new \InvalidArgumentException('requires a key to have been set');
+        }
+
+        $this->config = array_merge([], $config);
+    }
+
+    /**
+     * @return array
+     */
+    public function getEvents()
+    {
+        return ['before' => ['onBefore', RequestEvents::SIGN_REQUEST]];
+    }
+
+    /**
+     * Updates the request query with the developer key if auth is set to simple.
+     *
+     *   use Google\Auth\Subscriber\SimpleSubscriber;
+     *   use GuzzleHttp\Client;
+     *
+     *   $my_key = 'is not the same as yours';
+     *   $subscriber = new SimpleSubscriber(['key' => $my_key]);
+     *
+     *   $client = new Client([
+     *      'base_url' => 'https://www.googleapis.com/discovery/v1/',
+     *      'defaults' => ['auth' => 'simple']
+     *   ]);
+     *   $client->getEmitter()->attach($subscriber);
+     *
+     *   $res = $client->get('drive/v2/rest');
+     *
+     * @param BeforeEvent $event
+     */
+    public function onBefore(BeforeEvent $event)
+    {
+        // Requests using "auth"="simple" with the developer key.
+        $request = $event->getRequest();
+        if ($request->getConfig()['auth'] != 'simple') {
+            return;
+        }
+        $request->getQuery()->overwriteWith($this->config);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/CHANGELOG.md b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/CHANGELOG.md
new file mode 100644
index 0000000..b265cbc
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/CHANGELOG.md
@@ -0,0 +1,1264 @@
+# CHANGELOG
+
+## 6.3.0 - 2017-06-22
+
+* Feature: force IP resolution (ipv4 or ipv6) [#1608](https://github.com/guzzle/guzzle/pull/1608), [#1659](https://github.com/guzzle/guzzle/pull/1659)
+* Improvement: Don't include summary in exception message when body is empty [#1621](https://github.com/guzzle/guzzle/pull/1621)
+* Improvement: Handle `on_headers` option in MockHandler [#1580](https://github.com/guzzle/guzzle/pull/1580)
+* Improvement: Added SUSE Linux CA path [#1609](https://github.com/guzzle/guzzle/issues/1609)
+* Improvement: Use class reference for getting the name of the class instead of using hardcoded strings [#1641](https://github.com/guzzle/guzzle/pull/1641)
+* Feature: Added `read_timeout` option [#1611](https://github.com/guzzle/guzzle/pull/1611)
+* Bug fix: PHP 7.x fixes [#1685](https://github.com/guzzle/guzzle/pull/1685), [#1686](https://github.com/guzzle/guzzle/pull/1686), [#1811](https://github.com/guzzle/guzzle/pull/1811)
+* Deprecation: BadResponseException instantiation without a response [#1642](https://github.com/guzzle/guzzle/pull/1642)
+* Feature: Added NTLM auth [#1569](https://github.com/guzzle/guzzle/pull/1569)
+* Feature: Track redirect HTTP status codes [#1711](https://github.com/guzzle/guzzle/pull/1711)
+* Improvement: Check handler type during construction [#1745](https://github.com/guzzle/guzzle/pull/1745)
+* Improvement: Always include the Content-Length if there's a body [#1721](https://github.com/guzzle/guzzle/pull/1721)
+* Feature: Added convenience method to access a cookie by name [#1318](https://github.com/guzzle/guzzle/pull/1318)
+* Bug fix: Fill `CURLOPT_CAPATH` and `CURLOPT_CAINFO` properly [#1684](https://github.com/guzzle/guzzle/pull/1684)
+* Improvement:  	Use `\GuzzleHttp\Promise\rejection_for` function instead of object init [#1827](https://github.com/guzzle/guzzle/pull/1827)
+
+
++ Minor code cleanups, documentation fixes and clarifications.
+
+## 6.2.3 - 2017-02-28
+
+* Fix deprecations with guzzle/psr7 version 1.4
+
+## 6.2.2 - 2016-10-08
+
+* Allow to pass nullable Response to delay callable
+* Only add scheme when host is present
+* Fix drain case where content-length is the literal string zero
+* Obfuscate in-URL credentials in exceptions
+
+## 6.2.1 - 2016-07-18
+
+* Address HTTP_PROXY security vulnerability, CVE-2016-5385:
+  https://httpoxy.org/
+* Fixing timeout bug with StreamHandler:
+  https://github.com/guzzle/guzzle/pull/1488
+* Only read up to `Content-Length` in PHP StreamHandler to avoid timeouts when
+  a server does not honor `Connection: close`.
+* Ignore URI fragment when sending requests.
+
+## 6.2.0 - 2016-03-21
+
+* Feature: added `GuzzleHttp\json_encode` and `GuzzleHttp\json_decode`.
+  https://github.com/guzzle/guzzle/pull/1389
+* Bug fix: Fix sleep calculation when waiting for delayed requests.
+  https://github.com/guzzle/guzzle/pull/1324
+* Feature: More flexible history containers.
+  https://github.com/guzzle/guzzle/pull/1373
+* Bug fix: defer sink stream opening in StreamHandler.
+  https://github.com/guzzle/guzzle/pull/1377
+* Bug fix: do not attempt to escape cookie values.
+  https://github.com/guzzle/guzzle/pull/1406
+* Feature: report original content encoding and length on decoded responses.
+  https://github.com/guzzle/guzzle/pull/1409
+* Bug fix: rewind seekable request bodies before dispatching to cURL.
+  https://github.com/guzzle/guzzle/pull/1422
+* Bug fix: provide an empty string to `http_build_query` for HHVM workaround.
+  https://github.com/guzzle/guzzle/pull/1367
+
+## 6.1.1 - 2015-11-22
+
+* Bug fix: Proxy::wrapSync() now correctly proxies to the appropriate handler
+  https://github.com/guzzle/guzzle/commit/911bcbc8b434adce64e223a6d1d14e9a8f63e4e4
+* Feature: HandlerStack is now more generic.
+  https://github.com/guzzle/guzzle/commit/f2102941331cda544745eedd97fc8fd46e1ee33e
+* Bug fix: setting verify to false in the StreamHandler now disables peer
+  verification. https://github.com/guzzle/guzzle/issues/1256
+* Feature: Middleware now uses an exception factory, including more error
+  context. https://github.com/guzzle/guzzle/pull/1282
+* Feature: better support for disabled functions.
+  https://github.com/guzzle/guzzle/pull/1287
+* Bug fix: fixed regression where MockHandler was not using `sink`.
+  https://github.com/guzzle/guzzle/pull/1292
+
+## 6.1.0 - 2015-09-08
+
+* Feature: Added the `on_stats` request option to provide access to transfer
+  statistics for requests. https://github.com/guzzle/guzzle/pull/1202
+* Feature: Added the ability to persist session cookies in CookieJars.
+  https://github.com/guzzle/guzzle/pull/1195
+* Feature: Some compatibility updates for Google APP Engine
+  https://github.com/guzzle/guzzle/pull/1216
+* Feature: Added support for NO_PROXY to prevent the use of a proxy based on
+  a simple set of rules. https://github.com/guzzle/guzzle/pull/1197
+* Feature: Cookies can now contain square brackets.
+  https://github.com/guzzle/guzzle/pull/1237
+* Bug fix: Now correctly parsing `=` inside of quotes in Cookies.
+  https://github.com/guzzle/guzzle/pull/1232
+* Bug fix: Cusotm cURL options now correctly override curl options of the
+  same name. https://github.com/guzzle/guzzle/pull/1221
+* Bug fix: Content-Type header is now added when using an explicitly provided
+  multipart body. https://github.com/guzzle/guzzle/pull/1218
+* Bug fix: Now ignoring Set-Cookie headers that have no name.
+* Bug fix: Reason phrase is no longer cast to an int in some cases in the
+  cURL handler. https://github.com/guzzle/guzzle/pull/1187
+* Bug fix: Remove the Authorization header when redirecting if the Host
+  header changes. https://github.com/guzzle/guzzle/pull/1207
+* Bug fix: Cookie path matching fixes
+  https://github.com/guzzle/guzzle/issues/1129
+* Bug fix: Fixing the cURL `body_as_string` setting
+  https://github.com/guzzle/guzzle/pull/1201
+* Bug fix: quotes are no longer stripped when parsing cookies.
+  https://github.com/guzzle/guzzle/issues/1172
+* Bug fix: `form_params` and `query` now always uses the `&` separator.
+  https://github.com/guzzle/guzzle/pull/1163
+* Bug fix: Adding a Content-Length to PHP stream wrapper requests if not set.
+  https://github.com/guzzle/guzzle/pull/1189
+
+## 6.0.2 - 2015-07-04
+
+* Fixed a memory leak in the curl handlers in which references to callbacks
+  were not being removed by `curl_reset`.
+* Cookies are now extracted properly before redirects.
+* Cookies now allow more character ranges.
+* Decoded Content-Encoding responses are now modified to correctly reflect
+  their state if the encoding was automatically removed by a handler. This
+  means that the `Content-Encoding` header may be removed an the
+  `Content-Length` modified to reflect the message size after removing the
+  encoding.
+* Added a more explicit error message when trying to use `form_params` and
+  `multipart` in the same request.
+* Several fixes for HHVM support.
+* Functions are now conditionally required using an additional level of
+  indirection to help with global Composer installations.
+
+## 6.0.1 - 2015-05-27
+
+* Fixed a bug with serializing the `query` request option where the `&`
+  separator was missing.
+* Added a better error message for when `body` is provided as an array. Please
+  use `form_params` or `multipart` instead.
+* Various doc fixes.
+
+## 6.0.0 - 2015-05-26
+
+* See the UPGRADING.md document for more information.
+* Added `multipart` and `form_params` request options.
+* Added `synchronous` request option.
+* Added the `on_headers` request option.
+* Fixed `expect` handling.
+* No longer adding default middlewares in the client ctor. These need to be
+  present on the provided handler in order to work.
+* Requests are no longer initiated when sending async requests with the
+  CurlMultiHandler. This prevents unexpected recursion from requests completing
+  while ticking the cURL loop.
+* Removed the semantics of setting `default` to `true`. This is no longer
+  required now that the cURL loop is not ticked for async requests.
+* Added request and response logging middleware.
+* No longer allowing self signed certificates when using the StreamHandler.
+* Ensuring that `sink` is valid if saving to a file.
+* Request exceptions now include a "handler context" which provides handler
+  specific contextual information.
+* Added `GuzzleHttp\RequestOptions` to allow request options to be applied
+  using constants.
+* `$maxHandles` has been removed from CurlMultiHandler.
+* `MultipartPostBody` is now part of the `guzzlehttp/psr7` package.
+
+## 5.3.0 - 2015-05-19
+
+* Mock now supports `save_to`
+* Marked `AbstractRequestEvent::getTransaction()` as public.
+* Fixed a bug in which multiple headers using different casing would overwrite
+  previous headers in the associative array.
+* Added `Utils::getDefaultHandler()`
+* Marked `GuzzleHttp\Client::getDefaultUserAgent` as deprecated.
+* URL scheme is now always lowercased.
+
+## 6.0.0-beta.1
+
+* Requires PHP >= 5.5
+* Updated to use PSR-7
+  * Requires immutable messages, which basically means an event based system
+    owned by a request instance is no longer possible.
+  * Utilizing the [Guzzle PSR-7 package](https://github.com/guzzle/psr7).
+  * Removed the dependency on `guzzlehttp/streams`. These stream abstractions
+    are available in the `guzzlehttp/psr7` package under the `GuzzleHttp\Psr7`
+    namespace.
+* Added middleware and handler system
+  * Replaced the Guzzle event and subscriber system with a middleware system.
+  * No longer depends on RingPHP, but rather places the HTTP handlers directly
+    in Guzzle, operating on PSR-7 messages.
+  * Retry logic is now encapsulated in `GuzzleHttp\Middleware::retry`, which
+    means the `guzzlehttp/retry-subscriber` is now obsolete.
+  * Mocking responses is now handled using `GuzzleHttp\Handler\MockHandler`.
+* Asynchronous responses
+  * No longer supports the `future` request option to send an async request.
+    Instead, use one of the `*Async` methods of a client (e.g., `requestAsync`,
+    `getAsync`, etc.).
+  * Utilizing `GuzzleHttp\Promise` instead of React's promise library to avoid
+    recursion required by chaining and forwarding react promises. See
+    https://github.com/guzzle/promises
+  * Added `requestAsync` and `sendAsync` to send request asynchronously.
+  * Added magic methods for `getAsync()`, `postAsync()`, etc. to send requests
+    asynchronously.
+* Request options
+  * POST and form updates
+    * Added the `form_fields` and `form_files` request options.
+    * Removed the `GuzzleHttp\Post` namespace.
+    * The `body` request option no longer accepts an array for POST requests.
+  * The `exceptions` request option has been deprecated in favor of the
+    `http_errors` request options.
+  * The `save_to` request option has been deprecated in favor of `sink` request
+    option.
+* Clients no longer accept an array of URI template string and variables for
+  URI variables. You will need to expand URI templates before passing them
+  into a client constructor or request method.
+* Client methods `get()`, `post()`, `put()`, `patch()`, `options()`, etc. are
+  now magic methods that will send synchronous requests.
+* Replaced `Utils.php` with plain functions in `functions.php`.
+* Removed `GuzzleHttp\Collection`.
+* Removed `GuzzleHttp\BatchResults`. Batched pool results are now returned as
+  an array.
+* Removed `GuzzleHttp\Query`. Query string handling is now handled using an
+  associative array passed into the `query` request option. The query string
+  is serialized using PHP's `http_build_query`. If you need more control, you
+  can pass the query string in as a string.
+* `GuzzleHttp\QueryParser` has been replaced with the
+  `GuzzleHttp\Psr7\parse_query`.
+
+## 5.2.0 - 2015-01-27
+
+* Added `AppliesHeadersInterface` to make applying headers to a request based
+  on the body more generic and not specific to `PostBodyInterface`.
+* Reduced the number of stack frames needed to send requests.
+* Nested futures are now resolved in the client rather than the RequestFsm
+* Finishing state transitions is now handled in the RequestFsm rather than the
+  RingBridge.
+* Added a guard in the Pool class to not use recursion for request retries.
+
+## 5.1.0 - 2014-12-19
+
+* Pool class no longer uses recursion when a request is intercepted.
+* The size of a Pool can now be dynamically adjusted using a callback.
+  See https://github.com/guzzle/guzzle/pull/943.
+* Setting a request option to `null` when creating a request with a client will
+  ensure that the option is not set. This allows you to overwrite default
+  request options on a per-request basis.
+  See https://github.com/guzzle/guzzle/pull/937.
+* Added the ability to limit which protocols are allowed for redirects by
+  specifying a `protocols` array in the `allow_redirects` request option.
+* Nested futures due to retries are now resolved when waiting for synchronous
+  responses. See https://github.com/guzzle/guzzle/pull/947.
+* `"0"` is now an allowed URI path. See
+  https://github.com/guzzle/guzzle/pull/935.
+* `Query` no longer typehints on the `$query` argument in the constructor,
+  allowing for strings and arrays.
+* Exceptions thrown in the `end` event are now correctly wrapped with Guzzle
+  specific exceptions if necessary.
+
+## 5.0.3 - 2014-11-03
+
+This change updates query strings so that they are treated as un-encoded values
+by default where the value represents an un-encoded value to send over the
+wire. A Query object then encodes the value before sending over the wire. This
+means that even value query string values (e.g., ":") are url encoded. This
+makes the Query class match PHP's http_build_query function. However, if you
+want to send requests over the wire using valid query string characters that do
+not need to be encoded, then you can provide a string to Url::setQuery() and
+pass true as the second argument to specify that the query string is a raw
+string that should not be parsed or encoded (unless a call to getQuery() is
+subsequently made, forcing the query-string to be converted into a Query
+object).
+
+## 5.0.2 - 2014-10-30
+
+* Added a trailing `\r\n` to multipart/form-data payloads. See
+  https://github.com/guzzle/guzzle/pull/871
+* Added a `GuzzleHttp\Pool::send()` convenience method to match the docs.
+* Status codes are now returned as integers. See
+  https://github.com/guzzle/guzzle/issues/881
+* No longer overwriting an existing `application/x-www-form-urlencoded` header
+  when sending POST requests, allowing for customized headers. See
+  https://github.com/guzzle/guzzle/issues/877
+* Improved path URL serialization.
+
+  * No longer double percent-encoding characters in the path or query string if
+    they are already encoded.
+  * Now properly encoding the supplied path to a URL object, instead of only
+    encoding ' ' and '?'.
+  * Note: This has been changed in 5.0.3 to now encode query string values by
+    default unless the `rawString` argument is provided when setting the query
+    string on a URL: Now allowing many more characters to be present in the
+    query string without being percent encoded. See http://tools.ietf.org/html/rfc3986#appendix-A
+
+## 5.0.1 - 2014-10-16
+
+Bugfix release.
+
+* Fixed an issue where connection errors still returned response object in
+  error and end events event though the response is unusable. This has been
+  corrected so that a response is not returned in the `getResponse` method of
+  these events if the response did not complete. https://github.com/guzzle/guzzle/issues/867
+* Fixed an issue where transfer statistics were not being populated in the
+  RingBridge. https://github.com/guzzle/guzzle/issues/866
+
+## 5.0.0 - 2014-10-12
+
+Adding support for non-blocking responses and some minor API cleanup.
+
+### New Features
+
+* Added support for non-blocking responses based on `guzzlehttp/guzzle-ring`.
+* Added a public API for creating a default HTTP adapter.
+* Updated the redirect plugin to be non-blocking so that redirects are sent
+  concurrently. Other plugins like this can now be updated to be non-blocking.
+* Added a "progress" event so that you can get upload and download progress
+  events.
+* Added `GuzzleHttp\Pool` which implements FutureInterface and transfers
+  requests concurrently using a capped pool size as efficiently as possible.
+* Added `hasListeners()` to EmitterInterface.
+* Removed `GuzzleHttp\ClientInterface::sendAll` and marked
+  `GuzzleHttp\Client::sendAll` as deprecated (it's still there, just not the
+  recommended way).
+
+### Breaking changes
+
+The breaking changes in this release are relatively minor. The biggest thing to
+look out for is that request and response objects no longer implement fluent
+interfaces.
+
+* Removed the fluent interfaces (i.e., `return $this`) from requests,
+  responses, `GuzzleHttp\Collection`, `GuzzleHttp\Url`,
+  `GuzzleHttp\Query`, `GuzzleHttp\Post\PostBody`, and
+  `GuzzleHttp\Cookie\SetCookie`. This blog post provides a good outline of
+  why I did this: http://ocramius.github.io/blog/fluent-interfaces-are-evil/.
+  This also makes the Guzzle message interfaces compatible with the current
+  PSR-7 message proposal.
+* Removed "functions.php", so that Guzzle is truly PSR-4 compliant. Except
+  for the HTTP request functions from function.php, these functions are now
+  implemented in `GuzzleHttp\Utils` using camelCase. `GuzzleHttp\json_decode`
+  moved to `GuzzleHttp\Utils::jsonDecode`. `GuzzleHttp\get_path` moved to
+  `GuzzleHttp\Utils::getPath`. `GuzzleHttp\set_path` moved to
+  `GuzzleHttp\Utils::setPath`. `GuzzleHttp\batch` should now be
+  `GuzzleHttp\Pool::batch`, which returns an `objectStorage`. Using functions.php
+  caused problems for many users: they aren't PSR-4 compliant, require an
+  explicit include, and needed an if-guard to ensure that the functions are not
+  declared multiple times.
+* Rewrote adapter layer.
+    * Removing all classes from `GuzzleHttp\Adapter`, these are now
+      implemented as callables that are stored in `GuzzleHttp\Ring\Client`.
+    * Removed the concept of "parallel adapters". Sending requests serially or
+      concurrently is now handled using a single adapter.
+    * Moved `GuzzleHttp\Adapter\Transaction` to `GuzzleHttp\Transaction`. The
+      Transaction object now exposes the request, response, and client as public
+      properties. The getters and setters have been removed.
+* Removed the "headers" event. This event was only useful for changing the
+  body a response once the headers of the response were known. You can implement
+  a similar behavior in a number of ways. One example might be to use a
+  FnStream that has access to the transaction being sent. For example, when the
+  first byte is written, you could check if the response headers match your
+  expectations, and if so, change the actual stream body that is being
+  written to.
+* Removed the `asArray` parameter from
+  `GuzzleHttp\Message\MessageInterface::getHeader`. If you want to get a header
+  value as an array, then use the newly added `getHeaderAsArray()` method of
+  `MessageInterface`. This change makes the Guzzle interfaces compatible with
+  the PSR-7 interfaces.
+* `GuzzleHttp\Message\MessageFactory` no longer allows subclasses to add
+  custom request options using double-dispatch (this was an implementation
+  detail). Instead, you should now provide an associative array to the
+  constructor which is a mapping of the request option name mapping to a
+  function that applies the option value to a request.
+* Removed the concept of "throwImmediately" from exceptions and error events.
+  This control mechanism was used to stop a transfer of concurrent requests
+  from completing. This can now be handled by throwing the exception or by
+  cancelling a pool of requests or each outstanding future request individually.
+* Updated to "GuzzleHttp\Streams" 3.0.
+    * `GuzzleHttp\Stream\StreamInterface::getContents()` no longer accepts a
+      `maxLen` parameter. This update makes the Guzzle streams project
+      compatible with the current PSR-7 proposal.
+    * `GuzzleHttp\Stream\Stream::__construct`,
+      `GuzzleHttp\Stream\Stream::factory`, and
+      `GuzzleHttp\Stream\Utils::create` no longer accept a size in the second
+      argument. They now accept an associative array of options, including the
+      "size" key and "metadata" key which can be used to provide custom metadata.
+
+## 4.2.2 - 2014-09-08
+
+* Fixed a memory leak in the CurlAdapter when reusing cURL handles.
+* No longer using `request_fulluri` in stream adapter proxies.
+* Relative redirects are now based on the last response, not the first response.
+
+## 4.2.1 - 2014-08-19
+
+* Ensuring that the StreamAdapter does not always add a Content-Type header
+* Adding automated github releases with a phar and zip
+
+## 4.2.0 - 2014-08-17
+
+* Now merging in default options using a case-insensitive comparison.
+  Closes https://github.com/guzzle/guzzle/issues/767
+* Added the ability to automatically decode `Content-Encoding` response bodies
+  using the `decode_content` request option. This is set to `true` by default
+  to decode the response body if it comes over the wire with a
+  `Content-Encoding`. Set this value to `false` to disable decoding the
+  response content, and pass a string to provide a request `Accept-Encoding`
+  header and turn on automatic response decoding. This feature now allows you
+  to pass an `Accept-Encoding` header in the headers of a request but still
+  disable automatic response decoding.
+  Closes https://github.com/guzzle/guzzle/issues/764
+* Added the ability to throw an exception immediately when transferring
+  requests in parallel. Closes https://github.com/guzzle/guzzle/issues/760
+* Updating guzzlehttp/streams dependency to ~2.1
+* No longer utilizing the now deprecated namespaced methods from the stream
+  package.
+
+## 4.1.8 - 2014-08-14
+
+* Fixed an issue in the CurlFactory that caused setting the `stream=false`
+  request option to throw an exception.
+  See: https://github.com/guzzle/guzzle/issues/769
+* TransactionIterator now calls rewind on the inner iterator.
+  See: https://github.com/guzzle/guzzle/pull/765
+* You can now set the `Content-Type` header to `multipart/form-data`
+  when creating POST requests to force multipart bodies.
+  See https://github.com/guzzle/guzzle/issues/768
+
+## 4.1.7 - 2014-08-07
+
+* Fixed an error in the HistoryPlugin that caused the same request and response
+  to be logged multiple times when an HTTP protocol error occurs.
+* Ensuring that cURL does not add a default Content-Type when no Content-Type
+  has been supplied by the user. This prevents the adapter layer from modifying
+  the request that is sent over the wire after any listeners may have already
+  put the request in a desired state (e.g., signed the request).
+* Throwing an exception when you attempt to send requests that have the
+  "stream" set to true in parallel using the MultiAdapter.
+* Only calling curl_multi_select when there are active cURL handles. This was
+  previously changed and caused performance problems on some systems due to PHP
+  always selecting until the maximum select timeout.
+* Fixed a bug where multipart/form-data POST fields were not correctly
+  aggregated (e.g., values with "&").
+
+## 4.1.6 - 2014-08-03
+
+* Added helper methods to make it easier to represent messages as strings,
+  including getting the start line and getting headers as a string.
+
+## 4.1.5 - 2014-08-02
+
+* Automatically retrying cURL "Connection died, retrying a fresh connect"
+  errors when possible.
+* cURL implementation cleanup
+* Allowing multiple event subscriber listeners to be registered per event by
+  passing an array of arrays of listener configuration.
+
+## 4.1.4 - 2014-07-22
+
+* Fixed a bug that caused multi-part POST requests with more than one field to
+  serialize incorrectly.
+* Paths can now be set to "0"
+* `ResponseInterface::xml` now accepts a `libxml_options` option and added a
+  missing default argument that was required when parsing XML response bodies.
+* A `save_to` stream is now created lazily, which means that files are not
+  created on disk unless a request succeeds.
+
+## 4.1.3 - 2014-07-15
+
+* Various fixes to multipart/form-data POST uploads
+* Wrapping function.php in an if-statement to ensure Guzzle can be used
+  globally and in a Composer install
+* Fixed an issue with generating and merging in events to an event array
+* POST headers are only applied before sending a request to allow you to change
+  the query aggregator used before uploading
+* Added much more robust query string parsing
+* Fixed various parsing and normalization issues with URLs
+* Fixing an issue where multi-valued headers were not being utilized correctly
+  in the StreamAdapter
+
+## 4.1.2 - 2014-06-18
+
+* Added support for sending payloads with GET requests
+
+## 4.1.1 - 2014-06-08
+
+* Fixed an issue related to using custom message factory options in subclasses
+* Fixed an issue with nested form fields in a multi-part POST
+* Fixed an issue with using the `json` request option for POST requests
+* Added `ToArrayInterface` to `GuzzleHttp\Cookie\CookieJar`
+
+## 4.1.0 - 2014-05-27
+
+* Added a `json` request option to easily serialize JSON payloads.
+* Added a `GuzzleHttp\json_decode()` wrapper to safely parse JSON.
+* Added `setPort()` and `getPort()` to `GuzzleHttp\Message\RequestInterface`.
+* Added the ability to provide an emitter to a client in the client constructor.
+* Added the ability to persist a cookie session using $_SESSION.
+* Added a trait that can be used to add event listeners to an iterator.
+* Removed request method constants from RequestInterface.
+* Fixed warning when invalid request start-lines are received.
+* Updated MessageFactory to work with custom request option methods.
+* Updated cacert bundle to latest build.
+
+4.0.2 (2014-04-16)
+------------------
+
+* Proxy requests using the StreamAdapter now properly use request_fulluri (#632)
+* Added the ability to set scalars as POST fields (#628)
+
+## 4.0.1 - 2014-04-04
+
+* The HTTP status code of a response is now set as the exception code of
+  RequestException objects.
+* 303 redirects will now correctly switch from POST to GET requests.
+* The default parallel adapter of a client now correctly uses the MultiAdapter.
+* HasDataTrait now initializes the internal data array as an empty array so
+  that the toArray() method always returns an array.
+
+## 4.0.0 - 2014-03-29
+
+* For more information on the 4.0 transition, see:
+  http://mtdowling.com/blog/2014/03/15/guzzle-4-rc/
+* For information on changes and upgrading, see:
+  https://github.com/guzzle/guzzle/blob/master/UPGRADING.md#3x-to-40
+* Added `GuzzleHttp\batch()` as a convenience function for sending requests in
+  parallel without needing to write asynchronous code.
+* Restructured how events are added to `GuzzleHttp\ClientInterface::sendAll()`.
+  You can now pass a callable or an array of associative arrays where each
+  associative array contains the "fn", "priority", and "once" keys.
+
+## 4.0.0.rc-2 - 2014-03-25
+
+* Removed `getConfig()` and `setConfig()` from clients to avoid confusion
+  around whether things like base_url, message_factory, etc. should be able to
+  be retrieved or modified.
+* Added `getDefaultOption()` and `setDefaultOption()` to ClientInterface
+* functions.php functions were renamed using snake_case to match PHP idioms
+* Added support for `HTTP_PROXY`, `HTTPS_PROXY`, and
+  `GUZZLE_CURL_SELECT_TIMEOUT` environment variables
+* Added the ability to specify custom `sendAll()` event priorities
+* Added the ability to specify custom stream context options to the stream
+  adapter.
+* Added a functions.php function for `get_path()` and `set_path()`
+* CurlAdapter and MultiAdapter now use a callable to generate curl resources
+* MockAdapter now properly reads a body and emits a `headers` event
+* Updated Url class to check if a scheme and host are set before adding ":"
+  and "//". This allows empty Url (e.g., "") to be serialized as "".
+* Parsing invalid XML no longer emits warnings
+* Curl classes now properly throw AdapterExceptions
+* Various performance optimizations
+* Streams are created with the faster `Stream\create()` function
+* Marked deprecation_proxy() as internal
+* Test server is now a collection of static methods on a class
+
+## 4.0.0-rc.1 - 2014-03-15
+
+* See https://github.com/guzzle/guzzle/blob/master/UPGRADING.md#3x-to-40
+
+## 3.8.1 - 2014-01-28
+
+* Bug: Always using GET requests when redirecting from a 303 response
+* Bug: CURLOPT_SSL_VERIFYHOST is now correctly set to false when setting `$certificateAuthority` to false in
+  `Guzzle\Http\ClientInterface::setSslVerification()`
+* Bug: RedirectPlugin now uses strict RFC 3986 compliance when combining a base URL with a relative URL
+* Bug: The body of a request can now be set to `"0"`
+* Sending PHP stream requests no longer forces `HTTP/1.0`
+* Adding more information to ExceptionCollection exceptions so that users have more context, including a stack trace of
+  each sub-exception
+* Updated the `$ref` attribute in service descriptions to merge over any existing parameters of a schema (rather than
+  clobbering everything).
+* Merging URLs will now use the query string object from the relative URL (thus allowing custom query aggregators)
+* Query strings are now parsed in a way that they do no convert empty keys with no value to have a dangling `=`.
+  For example `foo&bar=baz` is now correctly parsed and recognized as `foo&bar=baz` rather than `foo=&bar=baz`.
+* Now properly escaping the regular expression delimiter when matching Cookie domains.
+* Network access is now disabled when loading XML documents
+
+## 3.8.0 - 2013-12-05
+
+* Added the ability to define a POST name for a file
+* JSON response parsing now properly walks additionalProperties
+* cURL error code 18 is now retried automatically in the BackoffPlugin
+* Fixed a cURL error when URLs contain fragments
+* Fixed an issue in the BackoffPlugin retry event where it was trying to access all exceptions as if they were
+  CurlExceptions
+* CURLOPT_PROGRESS function fix for PHP 5.5 (69fcc1e)
+* Added the ability for Guzzle to work with older versions of cURL that do not support `CURLOPT_TIMEOUT_MS`
+* Fixed a bug that was encountered when parsing empty header parameters
+* UriTemplate now has a `setRegex()` method to match the docs
+* The `debug` request parameter now checks if it is truthy rather than if it exists
+* Setting the `debug` request parameter to true shows verbose cURL output instead of using the LogPlugin
+* Added the ability to combine URLs using strict RFC 3986 compliance
+* Command objects can now return the validation errors encountered by the command
+* Various fixes to cache revalidation (#437 and 29797e5)
+* Various fixes to the AsyncPlugin
+* Cleaned up build scripts
+
+## 3.7.4 - 2013-10-02
+
+* Bug fix: 0 is now an allowed value in a description parameter that has a default value (#430)
+* Bug fix: SchemaFormatter now returns an integer when formatting to a Unix timestamp
+  (see https://github.com/aws/aws-sdk-php/issues/147)
+* Bug fix: Cleaned up and fixed URL dot segment removal to properly resolve internal dots
+* Minimum PHP version is now properly specified as 5.3.3 (up from 5.3.2) (#420)
+* Updated the bundled cacert.pem (#419)
+* OauthPlugin now supports adding authentication to headers or query string (#425)
+
+## 3.7.3 - 2013-09-08
+
+* Added the ability to get the exception associated with a request/command when using `MultiTransferException` and
+  `CommandTransferException`.
+* Setting `additionalParameters` of a response to false is now honored when parsing responses with a service description
+* Schemas are only injected into response models when explicitly configured.
+* No longer guessing Content-Type based on the path of a request. Content-Type is now only guessed based on the path of
+  an EntityBody.
+* Bug fix: ChunkedIterator can now properly chunk a \Traversable as well as an \Iterator.
+* Bug fix: FilterIterator now relies on `\Iterator` instead of `\Traversable`.
+* Bug fix: Gracefully handling malformed responses in RequestMediator::writeResponseBody()
+* Bug fix: Replaced call to canCache with canCacheRequest in the CallbackCanCacheStrategy of the CachePlugin
+* Bug fix: Visiting XML attributes first before visiting XML children when serializing requests
+* Bug fix: Properly parsing headers that contain commas contained in quotes
+* Bug fix: mimetype guessing based on a filename is now case-insensitive
+
+## 3.7.2 - 2013-08-02
+
+* Bug fix: Properly URL encoding paths when using the PHP-only version of the UriTemplate expander
+  See https://github.com/guzzle/guzzle/issues/371
+* Bug fix: Cookie domains are now matched correctly according to RFC 6265
+  See https://github.com/guzzle/guzzle/issues/377
+* Bug fix: GET parameters are now used when calculating an OAuth signature
+* Bug fix: Fixed an issue with cache revalidation where the If-None-Match header was being double quoted
+* `Guzzle\Common\AbstractHasDispatcher::dispatch()` now returns the event that was dispatched
+* `Guzzle\Http\QueryString::factory()` now guesses the most appropriate query aggregator to used based on the input.
+  See https://github.com/guzzle/guzzle/issues/379
+* Added a way to add custom domain objects to service description parsing using the `operation.parse_class` event. See
+  https://github.com/guzzle/guzzle/pull/380
+* cURL multi cleanup and optimizations
+
+## 3.7.1 - 2013-07-05
+
+* Bug fix: Setting default options on a client now works
+* Bug fix: Setting options on HEAD requests now works. See #352
+* Bug fix: Moving stream factory before send event to before building the stream. See #353
+* Bug fix: Cookies no longer match on IP addresses per RFC 6265
+* Bug fix: Correctly parsing header parameters that are in `<>` and quotes
+* Added `cert` and `ssl_key` as request options
+* `Host` header can now diverge from the host part of a URL if the header is set manually
+* `Guzzle\Service\Command\LocationVisitor\Request\XmlVisitor` was rewritten to change from using SimpleXML to XMLWriter
+* OAuth parameters are only added via the plugin if they aren't already set
+* Exceptions are now thrown when a URL cannot be parsed
+* Returning `false` if `Guzzle\Http\EntityBody::getContentMd5()` fails
+* Not setting a `Content-MD5` on a command if calculating the Content-MD5 fails via the CommandContentMd5Plugin
+
+## 3.7.0 - 2013-06-10
+
+* See UPGRADING.md for more information on how to upgrade.
+* Requests now support the ability to specify an array of $options when creating a request to more easily modify a
+  request. You can pass a 'request.options' configuration setting to a client to apply default request options to
+  every request created by a client (e.g. default query string variables, headers, curl options, etc.).
+* Added a static facade class that allows you to use Guzzle with static methods and mount the class to `\Guzzle`.
+  See `Guzzle\Http\StaticClient::mount`.
+* Added `command.request_options` to `Guzzle\Service\Command\AbstractCommand` to pass request options to requests
+      created by a command (e.g. custom headers, query string variables, timeout settings, etc.).
+* Stream size in `Guzzle\Stream\PhpStreamRequestFactory` will now be set if Content-Length is returned in the
+  headers of a response
+* Added `Guzzle\Common\Collection::setPath($path, $value)` to set a value into an array using a nested key
+  (e.g. `$collection->setPath('foo/baz/bar', 'test'); echo $collection['foo']['bar']['bar'];`)
+* ServiceBuilders now support storing and retrieving arbitrary data
+* CachePlugin can now purge all resources for a given URI
+* CachePlugin can automatically purge matching cached items when a non-idempotent request is sent to a resource
+* CachePlugin now uses the Vary header to determine if a resource is a cache hit
+* `Guzzle\Http\Message\Response` now implements `\Serializable`
+* Added `Guzzle\Cache\CacheAdapterFactory::fromCache()` to more easily create cache adapters
+* `Guzzle\Service\ClientInterface::execute()` now accepts an array, single command, or Traversable
+* Fixed a bug in `Guzzle\Http\Message\Header\Link::addLink()`
+* Better handling of calculating the size of a stream in `Guzzle\Stream\Stream` using fstat() and caching the size
+* `Guzzle\Common\Exception\ExceptionCollection` now creates a more readable exception message
+* Fixing BC break: Added back the MonologLogAdapter implementation rather than extending from PsrLog so that older
+  Symfony users can still use the old version of Monolog.
+* Fixing BC break: Added the implementation back in for `Guzzle\Http\Message\AbstractMessage::getTokenizedHeader()`.
+  Now triggering an E_USER_DEPRECATED warning when used. Use `$message->getHeader()->parseParams()`.
+* Several performance improvements to `Guzzle\Common\Collection`
+* Added an `$options` argument to the end of the following methods of `Guzzle\Http\ClientInterface`:
+  createRequest, head, delete, put, patch, post, options, prepareRequest
+* Added an `$options` argument to the end of `Guzzle\Http\Message\Request\RequestFactoryInterface::createRequest()`
+* Added an `applyOptions()` method to `Guzzle\Http\Message\Request\RequestFactoryInterface`
+* Changed `Guzzle\Http\ClientInterface::get($uri = null, $headers = null, $body = null)` to
+  `Guzzle\Http\ClientInterface::get($uri = null, $headers = null, $options = array())`. You can still pass in a
+  resource, string, or EntityBody into the $options parameter to specify the download location of the response.
+* Changed `Guzzle\Common\Collection::__construct($data)` to no longer accepts a null value for `$data` but a
+  default `array()`
+* Added `Guzzle\Stream\StreamInterface::isRepeatable`
+* Removed `Guzzle\Http\ClientInterface::setDefaultHeaders(). Use
+  $client->getConfig()->setPath('request.options/headers/{header_name}', 'value')`. or
+  $client->getConfig()->setPath('request.options/headers', array('header_name' => 'value'))`.
+* Removed `Guzzle\Http\ClientInterface::getDefaultHeaders(). Use $client->getConfig()->getPath('request.options/headers')`.
+* Removed `Guzzle\Http\ClientInterface::expandTemplate()`
+* Removed `Guzzle\Http\ClientInterface::setRequestFactory()`
+* Removed `Guzzle\Http\ClientInterface::getCurlMulti()`
+* Removed `Guzzle\Http\Message\RequestInterface::canCache`
+* Removed `Guzzle\Http\Message\RequestInterface::setIsRedirect`
+* Removed `Guzzle\Http\Message\RequestInterface::isRedirect`
+* Made `Guzzle\Http\Client::expandTemplate` and `getUriTemplate` protected methods.
+* You can now enable E_USER_DEPRECATED warnings to see if you are using a deprecated method by setting
+  `Guzzle\Common\Version::$emitWarnings` to true.
+* Marked `Guzzle\Http\Message\Request::isResponseBodyRepeatable()` as deprecated. Use
+      `$request->getResponseBody()->isRepeatable()` instead.
+* Marked `Guzzle\Http\Message\Request::canCache()` as deprecated. Use
+  `Guzzle\Plugin\Cache\DefaultCanCacheStrategy->canCacheRequest()` instead.
+* Marked `Guzzle\Http\Message\Request::canCache()` as deprecated. Use
+  `Guzzle\Plugin\Cache\DefaultCanCacheStrategy->canCacheRequest()` instead.
+* Marked `Guzzle\Http\Message\Request::setIsRedirect()` as deprecated. Use the HistoryPlugin instead.
+* Marked `Guzzle\Http\Message\Request::isRedirect()` as deprecated. Use the HistoryPlugin instead.
+* Marked `Guzzle\Cache\CacheAdapterFactory::factory()` as deprecated
+* Marked 'command.headers', 'command.response_body' and 'command.on_complete' as deprecated for AbstractCommand.
+  These will work through Guzzle 4.0
+* Marked 'request.params' for `Guzzle\Http\Client` as deprecated. Use [request.options][params].
+* Marked `Guzzle\Service\Client::enableMagicMethods()` as deprecated. Magic methods can no longer be disabled on a Guzzle\Service\Client.
+* Marked `Guzzle\Service\Client::getDefaultHeaders()` as deprecated. Use $client->getConfig()->getPath('request.options/headers')`.
+* Marked `Guzzle\Service\Client::setDefaultHeaders()` as deprecated. Use $client->getConfig()->setPath('request.options/headers/{header_name}', 'value')`.
+* Marked `Guzzle\Parser\Url\UrlParser` as deprecated. Just use PHP's `parse_url()` and percent encode your UTF-8.
+* Marked `Guzzle\Common\Collection::inject()` as deprecated.
+* Marked `Guzzle\Plugin\CurlAuth\CurlAuthPlugin` as deprecated. Use `$client->getConfig()->setPath('request.options/auth', array('user', 'pass', 'Basic|Digest');`
+* CacheKeyProviderInterface and DefaultCacheKeyProvider are no longer used. All of this logic is handled in a
+  CacheStorageInterface. These two objects and interface will be removed in a future version.
+* Always setting X-cache headers on cached responses
+* Default cache TTLs are now handled by the CacheStorageInterface of a CachePlugin
+* `CacheStorageInterface::cache($key, Response $response, $ttl = null)` has changed to `cache(RequestInterface
+  $request, Response $response);`
+* `CacheStorageInterface::fetch($key)` has changed to `fetch(RequestInterface $request);`
+* `CacheStorageInterface::delete($key)` has changed to `delete(RequestInterface $request);`
+* Added `CacheStorageInterface::purge($url)`
+* `DefaultRevalidation::__construct(CacheKeyProviderInterface $cacheKey, CacheStorageInterface $cache, CachePlugin
+  $plugin)` has changed to `DefaultRevalidation::__construct(CacheStorageInterface $cache,
+  CanCacheStrategyInterface $canCache = null)`
+* Added `RevalidationInterface::shouldRevalidate(RequestInterface $request, Response $response)`
+
+## 3.6.0 - 2013-05-29
+
+* ServiceDescription now implements ToArrayInterface
+* Added command.hidden_params to blacklist certain headers from being treated as additionalParameters
+* Guzzle can now correctly parse incomplete URLs
+* Mixed casing of headers are now forced to be a single consistent casing across all values for that header.
+* Messages internally use a HeaderCollection object to delegate handling case-insensitive header resolution
+* Removed the whole changedHeader() function system of messages because all header changes now go through addHeader().
+* Specific header implementations can be created for complex headers. When a message creates a header, it uses a
+  HeaderFactory which can map specific headers to specific header classes. There is now a Link header and
+  CacheControl header implementation.
+* Removed from interface: Guzzle\Http\ClientInterface::setUriTemplate
+* Removed from interface: Guzzle\Http\ClientInterface::setCurlMulti()
+* Removed Guzzle\Http\Message\Request::receivedRequestHeader() and implemented this functionality in
+  Guzzle\Http\Curl\RequestMediator
+* Removed the optional $asString parameter from MessageInterface::getHeader(). Just cast the header to a string.
+* Removed the optional $tryChunkedTransfer option from Guzzle\Http\Message\EntityEnclosingRequestInterface
+* Removed the $asObjects argument from Guzzle\Http\Message\MessageInterface::getHeaders()
+* Removed Guzzle\Parser\ParserRegister::get(). Use getParser()
+* Removed Guzzle\Parser\ParserRegister::set(). Use registerParser().
+* All response header helper functions return a string rather than mixing Header objects and strings inconsistently
+* Removed cURL blacklist support. This is no longer necessary now that Expect, Accept, etc. are managed by Guzzle
+  directly via interfaces
+* Removed the injecting of a request object onto a response object. The methods to get and set a request still exist
+  but are a no-op until removed.
+* Most classes that used to require a `Guzzle\Service\Command\CommandInterface` typehint now request a
+  `Guzzle\Service\Command\ArrayCommandInterface`.
+* Added `Guzzle\Http\Message\RequestInterface::startResponse()` to the RequestInterface to handle injecting a response
+  on a request while the request is still being transferred
+* The ability to case-insensitively search for header values
+* Guzzle\Http\Message\Header::hasExactHeader
+* Guzzle\Http\Message\Header::raw. Use getAll()
+* Deprecated cache control specific methods on Guzzle\Http\Message\AbstractMessage. Use the CacheControl header object
+  instead.
+* `Guzzle\Service\Command\CommandInterface` now extends from ToArrayInterface and ArrayAccess
+* Added the ability to cast Model objects to a string to view debug information.
+
+## 3.5.0 - 2013-05-13
+
+* Bug: Fixed a regression so that request responses are parsed only once per oncomplete event rather than multiple times
+* Bug: Better cleanup of one-time events across the board (when an event is meant to fire once, it will now remove
+  itself from the EventDispatcher)
+* Bug: `Guzzle\Log\MessageFormatter` now properly writes "total_time" and "connect_time" values
+* Bug: Cloning an EntityEnclosingRequest now clones the EntityBody too
+* Bug: Fixed an undefined index error when parsing nested JSON responses with a sentAs parameter that reference a
+  non-existent key
+* Bug: All __call() method arguments are now required (helps with mocking frameworks)
+* Deprecating Response::getRequest() and now using a shallow clone of a request object to remove a circular reference
+  to help with refcount based garbage collection of resources created by sending a request
+* Deprecating ZF1 cache and log adapters. These will be removed in the next major version.
+* Deprecating `Response::getPreviousResponse()` (method signature still exists, but it's deprecated). Use the
+  HistoryPlugin for a history.
+* Added a `responseBody` alias for the `response_body` location
+* Refactored internals to no longer rely on Response::getRequest()
+* HistoryPlugin can now be cast to a string
+* HistoryPlugin now logs transactions rather than requests and responses to more accurately keep track of the requests
+  and responses that are sent over the wire
+* Added `getEffectiveUrl()` and `getRedirectCount()` to Response objects
+
+## 3.4.3 - 2013-04-30
+
+* Bug fix: Fixing bug introduced in 3.4.2 where redirect responses are duplicated on the final redirected response
+* Added a check to re-extract the temp cacert bundle from the phar before sending each request
+
+## 3.4.2 - 2013-04-29
+
+* Bug fix: Stream objects now work correctly with "a" and "a+" modes
+* Bug fix: Removing `Transfer-Encoding: chunked` header when a Content-Length is present
+* Bug fix: AsyncPlugin no longer forces HEAD requests
+* Bug fix: DateTime timezones are now properly handled when using the service description schema formatter
+* Bug fix: CachePlugin now properly handles stale-if-error directives when a request to the origin server fails
+* Setting a response on a request will write to the custom request body from the response body if one is specified
+* LogPlugin now writes to php://output when STDERR is undefined
+* Added the ability to set multiple POST files for the same key in a single call
+* application/x-www-form-urlencoded POSTs now use the utf-8 charset by default
+* Added the ability to queue CurlExceptions to the MockPlugin
+* Cleaned up how manual responses are queued on requests (removed "queued_response" and now using request.before_send)
+* Configuration loading now allows remote files
+
+## 3.4.1 - 2013-04-16
+
+* Large refactoring to how CurlMulti handles work. There is now a proxy that sits in front of a pool of CurlMulti
+  handles. This greatly simplifies the implementation, fixes a couple bugs, and provides a small performance boost.
+* Exceptions are now properly grouped when sending requests in parallel
+* Redirects are now properly aggregated when a multi transaction fails
+* Redirects now set the response on the original object even in the event of a failure
+* Bug fix: Model names are now properly set even when using $refs
+* Added support for PHP 5.5's CurlFile to prevent warnings with the deprecated @ syntax
+* Added support for oauth_callback in OAuth signatures
+* Added support for oauth_verifier in OAuth signatures
+* Added support to attempt to retrieve a command first literally, then ucfirst, the with inflection
+
+## 3.4.0 - 2013-04-11
+
+* Bug fix: URLs are now resolved correctly based on http://tools.ietf.org/html/rfc3986#section-5.2. #289
+* Bug fix: Absolute URLs with a path in a service description will now properly override the base URL. #289
+* Bug fix: Parsing a query string with a single PHP array value will now result in an array. #263
+* Bug fix: Better normalization of the User-Agent header to prevent duplicate headers. #264.
+* Bug fix: Added `number` type to service descriptions.
+* Bug fix: empty parameters are removed from an OAuth signature
+* Bug fix: Revalidating a cache entry prefers the Last-Modified over the Date header
+* Bug fix: Fixed "array to string" error when validating a union of types in a service description
+* Bug fix: Removed code that attempted to determine the size of a stream when data is written to the stream
+* Bug fix: Not including an `oauth_token` if the value is null in the OauthPlugin.
+* Bug fix: Now correctly aggregating successful requests and failed requests in CurlMulti when a redirect occurs.
+* The new default CURLOPT_TIMEOUT setting has been increased to 150 seconds so that Guzzle works on poor connections.
+* Added a feature to EntityEnclosingRequest::setBody() that will automatically set the Content-Type of the request if
+  the Content-Type can be determined based on the entity body or the path of the request.
+* Added the ability to overwrite configuration settings in a client when grabbing a throwaway client from a builder.
+* Added support for a PSR-3 LogAdapter.
+* Added a `command.after_prepare` event
+* Added `oauth_callback` parameter to the OauthPlugin
+* Added the ability to create a custom stream class when using a stream factory
+* Added a CachingEntityBody decorator
+* Added support for `additionalParameters` in service descriptions to define how custom parameters are serialized.
+* The bundled SSL certificate is now provided in the phar file and extracted when running Guzzle from a phar.
+* You can now send any EntityEnclosingRequest with POST fields or POST files and cURL will handle creating bodies
+* POST requests using a custom entity body are now treated exactly like PUT requests but with a custom cURL method. This
+  means that the redirect behavior of POST requests with custom bodies will not be the same as POST requests that use
+  POST fields or files (the latter is only used when emulating a form POST in the browser).
+* Lots of cleanup to CurlHandle::factory and RequestFactory::createRequest
+
+## 3.3.1 - 2013-03-10
+
+* Added the ability to create PHP streaming responses from HTTP requests
+* Bug fix: Running any filters when parsing response headers with service descriptions
+* Bug fix: OauthPlugin fixes to allow for multi-dimensional array signing, and sorting parameters before signing
+* Bug fix: Removed the adding of default empty arrays and false Booleans to responses in order to be consistent across
+  response location visitors.
+* Bug fix: Removed the possibility of creating configuration files with circular dependencies
+* RequestFactory::create() now uses the key of a POST file when setting the POST file name
+* Added xmlAllowEmpty to serialize an XML body even if no XML specific parameters are set
+
+## 3.3.0 - 2013-03-03
+
+* A large number of performance optimizations have been made
+* Bug fix: Added 'wb' as a valid write mode for streams
+* Bug fix: `Guzzle\Http\Message\Response::json()` now allows scalar values to be returned
+* Bug fix: Fixed bug in `Guzzle\Http\Message\Response` where wrapping quotes were stripped from `getEtag()`
+* BC: Removed `Guzzle\Http\Utils` class
+* BC: Setting a service description on a client will no longer modify the client's command factories.
+* BC: Emitting IO events from a RequestMediator is now a parameter that must be set in a request's curl options using
+  the 'emit_io' key. This was previously set under a request's parameters using 'curl.emit_io'
+* BC: `Guzzle\Stream\Stream::getWrapper()` and `Guzzle\Stream\Stream::getSteamType()` are no longer converted to
+  lowercase
+* Operation parameter objects are now lazy loaded internally
+* Added ErrorResponsePlugin that can throw errors for responses defined in service description operations' errorResponses
+* Added support for instantiating responseType=class responseClass classes. Classes must implement
+  `Guzzle\Service\Command\ResponseClassInterface`
+* Added support for additionalProperties for top-level parameters in responseType=model responseClasses. These
+  additional properties also support locations and can be used to parse JSON responses where the outermost part of the
+  JSON is an array
+* Added support for nested renaming of JSON models (rename sentAs to name)
+* CachePlugin
+    * Added support for stale-if-error so that the CachePlugin can now serve stale content from the cache on error
+    * Debug headers can now added to cached response in the CachePlugin
+
+## 3.2.0 - 2013-02-14
+
+* CurlMulti is no longer reused globally. A new multi object is created per-client. This helps to isolate clients.
+* URLs with no path no longer contain a "/" by default
+* Guzzle\Http\QueryString does no longer manages the leading "?". This is now handled in Guzzle\Http\Url.
+* BadResponseException no longer includes the full request and response message
+* Adding setData() to Guzzle\Service\Description\ServiceDescriptionInterface
+* Adding getResponseBody() to Guzzle\Http\Message\RequestInterface
+* Various updates to classes to use ServiceDescriptionInterface type hints rather than ServiceDescription
+* Header values can now be normalized into distinct values when multiple headers are combined with a comma separated list
+* xmlEncoding can now be customized for the XML declaration of a XML service description operation
+* Guzzle\Http\QueryString now uses Guzzle\Http\QueryAggregator\QueryAggregatorInterface objects to add custom value
+  aggregation and no longer uses callbacks
+* The URL encoding implementation of Guzzle\Http\QueryString can now be customized
+* Bug fix: Filters were not always invoked for array service description parameters
+* Bug fix: Redirects now use a target response body rather than a temporary response body
+* Bug fix: The default exponential backoff BackoffPlugin was not giving when the request threshold was exceeded
+* Bug fix: Guzzle now takes the first found value when grabbing Cache-Control directives
+
+## 3.1.2 - 2013-01-27
+
+* Refactored how operation responses are parsed. Visitors now include a before() method responsible for parsing the
+  response body. For example, the XmlVisitor now parses the XML response into an array in the before() method.
+* Fixed an issue where cURL would not automatically decompress responses when the Accept-Encoding header was sent
+* CURLOPT_SSL_VERIFYHOST is never set to 1 because it is deprecated (see 5e0ff2ef20f839e19d1eeb298f90ba3598784444)
+* Fixed a bug where redirect responses were not chained correctly using getPreviousResponse()
+* Setting default headers on a client after setting the user-agent will not erase the user-agent setting
+
+## 3.1.1 - 2013-01-20
+
+* Adding wildcard support to Guzzle\Common\Collection::getPath()
+* Adding alias support to ServiceBuilder configs
+* Adding Guzzle\Service\Resource\CompositeResourceIteratorFactory and cleaning up factory interface
+
+## 3.1.0 - 2013-01-12
+
+* BC: CurlException now extends from RequestException rather than BadResponseException
+* BC: Renamed Guzzle\Plugin\Cache\CanCacheStrategyInterface::canCache() to canCacheRequest() and added CanCacheResponse()
+* Added getData to ServiceDescriptionInterface
+* Added context array to RequestInterface::setState()
+* Bug: Removing hard dependency on the BackoffPlugin from Guzzle\Http
+* Bug: Adding required content-type when JSON request visitor adds JSON to a command
+* Bug: Fixing the serialization of a service description with custom data
+* Made it easier to deal with exceptions thrown when transferring commands or requests in parallel by providing
+  an array of successful and failed responses
+* Moved getPath from Guzzle\Service\Resource\Model to Guzzle\Common\Collection
+* Added Guzzle\Http\IoEmittingEntityBody
+* Moved command filtration from validators to location visitors
+* Added `extends` attributes to service description parameters
+* Added getModels to ServiceDescriptionInterface
+
+## 3.0.7 - 2012-12-19
+
+* Fixing phar detection when forcing a cacert to system if null or true
+* Allowing filename to be passed to `Guzzle\Http\Message\Request::setResponseBody()`
+* Cleaning up `Guzzle\Common\Collection::inject` method
+* Adding a response_body location to service descriptions
+
+## 3.0.6 - 2012-12-09
+
+* CurlMulti performance improvements
+* Adding setErrorResponses() to Operation
+* composer.json tweaks
+
+## 3.0.5 - 2012-11-18
+
+* Bug: Fixing an infinite recursion bug caused from revalidating with the CachePlugin
+* Bug: Response body can now be a string containing "0"
+* Bug: Using Guzzle inside of a phar uses system by default but now allows for a custom cacert
+* Bug: QueryString::fromString now properly parses query string parameters that contain equal signs
+* Added support for XML attributes in service description responses
+* DefaultRequestSerializer now supports array URI parameter values for URI template expansion
+* Added better mimetype guessing to requests and post files
+
+## 3.0.4 - 2012-11-11
+
+* Bug: Fixed a bug when adding multiple cookies to a request to use the correct glue value
+* Bug: Cookies can now be added that have a name, domain, or value set to "0"
+* Bug: Using the system cacert bundle when using the Phar
+* Added json and xml methods to Response to make it easier to parse JSON and XML response data into data structures
+* Enhanced cookie jar de-duplication
+* Added the ability to enable strict cookie jars that throw exceptions when invalid cookies are added
+* Added setStream to StreamInterface to actually make it possible to implement custom rewind behavior for entity bodies
+* Added the ability to create any sort of hash for a stream rather than just an MD5 hash
+
+## 3.0.3 - 2012-11-04
+
+* Implementing redirects in PHP rather than cURL
+* Added PECL URI template extension and using as default parser if available
+* Bug: Fixed Content-Length parsing of Response factory
+* Adding rewind() method to entity bodies and streams. Allows for custom rewinding of non-repeatable streams.
+* Adding ToArrayInterface throughout library
+* Fixing OauthPlugin to create unique nonce values per request
+
+## 3.0.2 - 2012-10-25
+
+* Magic methods are enabled by default on clients
+* Magic methods return the result of a command
+* Service clients no longer require a base_url option in the factory
+* Bug: Fixed an issue with URI templates where null template variables were being expanded
+
+## 3.0.1 - 2012-10-22
+
+* Models can now be used like regular collection objects by calling filter, map, etc.
+* Models no longer require a Parameter structure or initial data in the constructor
+* Added a custom AppendIterator to get around a PHP bug with the `\AppendIterator`
+
+## 3.0.0 - 2012-10-15
+
+* Rewrote service description format to be based on Swagger
+    * Now based on JSON schema
+    * Added nested input structures and nested response models
+    * Support for JSON and XML input and output models
+    * Renamed `commands` to `operations`
+    * Removed dot class notation
+    * Removed custom types
+* Broke the project into smaller top-level namespaces to be more component friendly
+* Removed support for XML configs and descriptions. Use arrays or JSON files.
+* Removed the Validation component and Inspector
+* Moved all cookie code to Guzzle\Plugin\Cookie
+* Magic methods on a Guzzle\Service\Client now return the command un-executed.
+* Calling getResult() or getResponse() on a command will lazily execute the command if needed.
+* Now shipping with cURL's CA certs and using it by default
+* Added previousResponse() method to response objects
+* No longer sending Accept and Accept-Encoding headers on every request
+* Only sending an Expect header by default when a payload is greater than 1MB
+* Added/moved client options:
+    * curl.blacklist to curl.option.blacklist
+    * Added ssl.certificate_authority
+* Added a Guzzle\Iterator component
+* Moved plugins from Guzzle\Http\Plugin to Guzzle\Plugin
+* Added a more robust backoff retry strategy (replaced the ExponentialBackoffPlugin)
+* Added a more robust caching plugin
+* Added setBody to response objects
+* Updating LogPlugin to use a more flexible MessageFormatter
+* Added a completely revamped build process
+* Cleaning up Collection class and removing default values from the get method
+* Fixed ZF2 cache adapters
+
+## 2.8.8 - 2012-10-15
+
+* Bug: Fixed a cookie issue that caused dot prefixed domains to not match where popular browsers did
+
+## 2.8.7 - 2012-09-30
+
+* Bug: Fixed config file aliases for JSON includes
+* Bug: Fixed cookie bug on a request object by using CookieParser to parse cookies on requests
+* Bug: Removing the path to a file when sending a Content-Disposition header on a POST upload
+* Bug: Hardening request and response parsing to account for missing parts
+* Bug: Fixed PEAR packaging
+* Bug: Fixed Request::getInfo
+* Bug: Fixed cases where CURLM_CALL_MULTI_PERFORM return codes were causing curl transactions to fail
+* Adding the ability for the namespace Iterator factory to look in multiple directories
+* Added more getters/setters/removers from service descriptions
+* Added the ability to remove POST fields from OAuth signatures
+* OAuth plugin now supports 2-legged OAuth
+
+## 2.8.6 - 2012-09-05
+
+* Added the ability to modify and build service descriptions
+* Added the use of visitors to apply parameters to locations in service descriptions using the dynamic command
+* Added a `json` parameter location
+* Now allowing dot notation for classes in the CacheAdapterFactory
+* Using the union of two arrays rather than an array_merge when extending service builder services and service params
+* Ensuring that a service is a string before doing strpos() checks on it when substituting services for references
+  in service builder config files.
+* Services defined in two different config files that include one another will by default replace the previously
+  defined service, but you can now create services that extend themselves and merge their settings over the previous
+* The JsonLoader now supports aliasing filenames with different filenames. This allows you to alias something like
+  '_default' with a default JSON configuration file.
+
+## 2.8.5 - 2012-08-29
+
+* Bug: Suppressed empty arrays from URI templates
+* Bug: Added the missing $options argument from ServiceDescription::factory to enable caching
+* Added support for HTTP responses that do not contain a reason phrase in the start-line
+* AbstractCommand commands are now invokable
+* Added a way to get the data used when signing an Oauth request before a request is sent
+
+## 2.8.4 - 2012-08-15
+
+* Bug: Custom delay time calculations are no longer ignored in the ExponentialBackoffPlugin
+* Added the ability to transfer entity bodies as a string rather than streamed. This gets around curl error 65. Set `body_as_string` in a request's curl options to enable.
+* Added a StreamInterface, EntityBodyInterface, and added ftell() to Guzzle\Common\Stream
+* Added an AbstractEntityBodyDecorator and a ReadLimitEntityBody decorator to transfer only a subset of a decorated stream
+* Stream and EntityBody objects will now return the file position to the previous position after a read required operation (e.g. getContentMd5())
+* Added additional response status codes
+* Removed SSL information from the default User-Agent header
+* DELETE requests can now send an entity body
+* Added an EventDispatcher to the ExponentialBackoffPlugin and added an ExponentialBackoffLogger to log backoff retries
+* Added the ability of the MockPlugin to consume mocked request bodies
+* LogPlugin now exposes request and response objects in the extras array
+
+## 2.8.3 - 2012-07-30
+
+* Bug: Fixed a case where empty POST requests were sent as GET requests
+* Bug: Fixed a bug in ExponentialBackoffPlugin that caused fatal errors when retrying an EntityEnclosingRequest that does not have a body
+* Bug: Setting the response body of a request to null after completing a request, not when setting the state of a request to new
+* Added multiple inheritance to service description commands
+* Added an ApiCommandInterface and added `getParamNames()` and `hasParam()`
+* Removed the default 2mb size cutoff from the Md5ValidatorPlugin so that it now defaults to validating everything
+* Changed CurlMulti::perform to pass a smaller timeout to CurlMulti::executeHandles
+
+## 2.8.2 - 2012-07-24
+
+* Bug: Query string values set to 0 are no longer dropped from the query string
+* Bug: A Collection object is no longer created each time a call is made to `Guzzle\Service\Command\AbstractCommand::getRequestHeaders()`
+* Bug: `+` is now treated as an encoded space when parsing query strings
+* QueryString and Collection performance improvements
+* Allowing dot notation for class paths in filters attribute of a service descriptions
+
+## 2.8.1 - 2012-07-16
+
+* Loosening Event Dispatcher dependency
+* POST redirects can now be customized using CURLOPT_POSTREDIR
+
+## 2.8.0 - 2012-07-15
+
+* BC: Guzzle\Http\Query
+    * Query strings with empty variables will always show an equal sign unless the variable is set to QueryString::BLANK (e.g. ?acl= vs ?acl)
+    * Changed isEncodingValues() and isEncodingFields() to isUrlEncoding()
+    * Changed setEncodeValues(bool) and setEncodeFields(bool) to useUrlEncoding(bool)
+    * Changed the aggregation functions of QueryString to be static methods
+    * Can now use fromString() with querystrings that have a leading ?
+* cURL configuration values can be specified in service descriptions using `curl.` prefixed parameters
+* Content-Length is set to 0 before emitting the request.before_send event when sending an empty request body
+* Cookies are no longer URL decoded by default
+* Bug: URI template variables set to null are no longer expanded
+
+## 2.7.2 - 2012-07-02
+
+* BC: Moving things to get ready for subtree splits. Moving Inflection into Common. Moving Guzzle\Http\Parser to Guzzle\Parser.
+* BC: Removing Guzzle\Common\Batch\Batch::count() and replacing it with isEmpty()
+* CachePlugin now allows for a custom request parameter function to check if a request can be cached
+* Bug fix: CachePlugin now only caches GET and HEAD requests by default
+* Bug fix: Using header glue when transferring headers over the wire
+* Allowing deeply nested arrays for composite variables in URI templates
+* Batch divisors can now return iterators or arrays
+
+## 2.7.1 - 2012-06-26
+
+* Minor patch to update version number in UA string
+* Updating build process
+
+## 2.7.0 - 2012-06-25
+
+* BC: Inflection classes moved to Guzzle\Inflection. No longer static methods. Can now inject custom inflectors into classes.
+* BC: Removed magic setX methods from commands
+* BC: Magic methods mapped to service description commands are now inflected in the command factory rather than the client __call() method
+* Verbose cURL options are no longer enabled by default. Set curl.debug to true on a client to enable.
+* Bug: Now allowing colons in a response start-line (e.g. HTTP/1.1 503 Service Unavailable: Back-end server is at capacity)
+* Guzzle\Service\Resource\ResourceIteratorApplyBatched now internally uses the Guzzle\Common\Batch namespace
+* Added Guzzle\Service\Plugin namespace and a PluginCollectionPlugin
+* Added the ability to set POST fields and files in a service description
+* Guzzle\Http\EntityBody::factory() now accepts objects with a __toString() method
+* Adding a command.before_prepare event to clients
+* Added BatchClosureTransfer and BatchClosureDivisor
+* BatchTransferException now includes references to the batch divisor and transfer strategies
+* Fixed some tests so that they pass more reliably
+* Added Guzzle\Common\Log\ArrayLogAdapter
+
+## 2.6.6 - 2012-06-10
+
+* BC: Removing Guzzle\Http\Plugin\BatchQueuePlugin
+* BC: Removing Guzzle\Service\Command\CommandSet
+* Adding generic batching system (replaces the batch queue plugin and command set)
+* Updating ZF cache and log adapters and now using ZF's composer repository
+* Bug: Setting the name of each ApiParam when creating through an ApiCommand
+* Adding result_type, result_doc, deprecated, and doc_url to service descriptions
+* Bug: Changed the default cookie header casing back to 'Cookie'
+
+## 2.6.5 - 2012-06-03
+
+* BC: Renaming Guzzle\Http\Message\RequestInterface::getResourceUri() to getResource()
+* BC: Removing unused AUTH_BASIC and AUTH_DIGEST constants from
+* BC: Guzzle\Http\Cookie is now used to manage Set-Cookie data, not Cookie data
+* BC: Renaming methods in the CookieJarInterface
+* Moving almost all cookie logic out of the CookiePlugin and into the Cookie or CookieJar implementations
+* Making the default glue for HTTP headers ';' instead of ','
+* Adding a removeValue to Guzzle\Http\Message\Header
+* Adding getCookies() to request interface.
+* Making it easier to add event subscribers to HasDispatcherInterface classes. Can now directly call addSubscriber()
+
+## 2.6.4 - 2012-05-30
+
+* BC: Cleaning up how POST files are stored in EntityEnclosingRequest objects. Adding PostFile class.
+* BC: Moving ApiCommand specific functionality from the Inspector and on to the ApiCommand
+* Bug: Fixing magic method command calls on clients
+* Bug: Email constraint only validates strings
+* Bug: Aggregate POST fields when POST files are present in curl handle
+* Bug: Fixing default User-Agent header
+* Bug: Only appending or prepending parameters in commands if they are specified
+* Bug: Not requiring response reason phrases or status codes to match a predefined list of codes
+* Allowing the use of dot notation for class namespaces when using instance_of constraint
+* Added any_match validation constraint
+* Added an AsyncPlugin
+* Passing request object to the calculateWait method of the ExponentialBackoffPlugin
+* Allowing the result of a command object to be changed
+* Parsing location and type sub values when instantiating a service description rather than over and over at runtime
+
+## 2.6.3 - 2012-05-23
+
+* [BC] Guzzle\Common\FromConfigInterface no longer requires any config options.
+* [BC] Refactoring how POST files are stored on an EntityEnclosingRequest. They are now separate from POST fields.
+* You can now use an array of data when creating PUT request bodies in the request factory.
+* Removing the requirement that HTTPS requests needed a Cache-Control: public directive to be cacheable.
+* [Http] Adding support for Content-Type in multipart POST uploads per upload
+* [Http] Added support for uploading multiple files using the same name (foo[0], foo[1])
+* Adding more POST data operations for easier manipulation of POST data.
+* You can now set empty POST fields.
+* The body of a request is only shown on EntityEnclosingRequest objects that do not use POST files.
+* Split the Guzzle\Service\Inspector::validateConfig method into two methods. One to initialize when a command is created, and one to validate.
+* CS updates
+
+## 2.6.2 - 2012-05-19
+
+* [Http] Better handling of nested scope requests in CurlMulti.  Requests are now always prepares in the send() method rather than the addRequest() method.
+
+## 2.6.1 - 2012-05-19
+
+* [BC] Removing 'path' support in service descriptions.  Use 'uri'.
+* [BC] Guzzle\Service\Inspector::parseDocBlock is now protected. Adding getApiParamsForClass() with cache.
+* [BC] Removing Guzzle\Common\NullObject.  Use https://github.com/mtdowling/NullObject if you need it.
+* [BC] Removing Guzzle\Common\XmlElement.
+* All commands, both dynamic and concrete, have ApiCommand objects.
+* Adding a fix for CurlMulti so that if all of the connections encounter some sort of curl error, then the loop exits.
+* Adding checks to EntityEnclosingRequest so that empty POST files and fields are ignored.
+* Making the method signature of Guzzle\Service\Builder\ServiceBuilder::factory more flexible.
+
+## 2.6.0 - 2012-05-15
+
+* [BC] Moving Guzzle\Service\Builder to Guzzle\Service\Builder\ServiceBuilder
+* [BC] Executing a Command returns the result of the command rather than the command
+* [BC] Moving all HTTP parsing logic to Guzzle\Http\Parsers. Allows for faster C implementations if needed.
+* [BC] Changing the Guzzle\Http\Message\Response::setProtocol() method to accept a protocol and version in separate args.
+* [BC] Moving ResourceIterator* to Guzzle\Service\Resource
+* [BC] Completely refactored ResourceIterators to iterate over a cloned command object
+* [BC] Moved Guzzle\Http\UriTemplate to Guzzle\Http\Parser\UriTemplate\UriTemplate
+* [BC] Guzzle\Guzzle is now deprecated
+* Moving Guzzle\Common\Guzzle::inject to Guzzle\Common\Collection::inject
+* Adding Guzzle\Version class to give version information about Guzzle
+* Adding Guzzle\Http\Utils class to provide getDefaultUserAgent() and getHttpDate()
+* Adding Guzzle\Curl\CurlVersion to manage caching curl_version() data
+* ServiceDescription and ServiceBuilder are now cacheable using similar configs
+* Changing the format of XML and JSON service builder configs.  Backwards compatible.
+* Cleaned up Cookie parsing
+* Trimming the default Guzzle User-Agent header
+* Adding a setOnComplete() method to Commands that is called when a command completes
+* Keeping track of requests that were mocked in the MockPlugin
+* Fixed a caching bug in the CacheAdapterFactory
+* Inspector objects can be injected into a Command object
+* Refactoring a lot of code and tests to be case insensitive when dealing with headers
+* Adding Guzzle\Http\Message\HeaderComparison for easy comparison of HTTP headers using a DSL
+* Adding the ability to set global option overrides to service builder configs
+* Adding the ability to include other service builder config files from within XML and JSON files
+* Moving the parseQuery method out of Url and on to QueryString::fromString() as a static factory method.
+
+## 2.5.0 - 2012-05-08
+
+* Major performance improvements
+* [BC] Simplifying Guzzle\Common\Collection.  Please check to see if you are using features that are now deprecated.
+* [BC] Using a custom validation system that allows a flyweight implementation for much faster validation. No longer using Symfony2 Validation component.
+* [BC] No longer supporting "{{ }}" for injecting into command or UriTemplates.  Use "{}"
+* Added the ability to passed parameters to all requests created by a client
+* Added callback functionality to the ExponentialBackoffPlugin
+* Using microtime in ExponentialBackoffPlugin to allow more granular backoff strategies.
+* Rewinding request stream bodies when retrying requests
+* Exception is thrown when JSON response body cannot be decoded
+* Added configurable magic method calls to clients and commands.  This is off by default.
+* Fixed a defect that added a hash to every parsed URL part
+* Fixed duplicate none generation for OauthPlugin.
+* Emitting an event each time a client is generated by a ServiceBuilder
+* Using an ApiParams object instead of a Collection for parameters of an ApiCommand
+* cache.* request parameters should be renamed to params.cache.*
+* Added the ability to set arbitrary curl options on requests (disable_wire, progress, etc.). See CurlHandle.
+* Added the ability to disable type validation of service descriptions
+* ServiceDescriptions and ServiceBuilders are now Serializable
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/LICENSE
new file mode 100644
index 0000000..ea7f07c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2011-2016 Michael Dowling, https://github.com/mtdowling <mtdowling@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/README.md b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/README.md
new file mode 100644
index 0000000..2f614d6
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/README.md
@@ -0,0 +1,89 @@
+Guzzle, PHP HTTP client
+=======================
+
+[![Build Status](https://travis-ci.org/guzzle/guzzle.svg?branch=master)](https://travis-ci.org/guzzle/guzzle)
+
+Guzzle is a PHP HTTP client that makes it easy to send HTTP requests and
+trivial to integrate with web services.
+
+- Simple interface for building query strings, POST requests, streaming large
+  uploads, streaming large downloads, using HTTP cookies, uploading JSON data,
+  etc...
+- Can send both synchronous and asynchronous requests using the same interface.
+- Uses PSR-7 interfaces for requests, responses, and streams. This allows you
+  to utilize other PSR-7 compatible libraries with Guzzle.
+- Abstracts away the underlying HTTP transport, allowing you to write
+  environment and transport agnostic code; i.e., no hard dependency on cURL,
+  PHP streams, sockets, or non-blocking event loops.
+- Middleware system allows you to augment and compose client behavior.
+
+```php
+$client = new \GuzzleHttp\Client();
+$res = $client->request('GET', 'https://api.github.com/repos/guzzle/guzzle');
+echo $res->getStatusCode();
+// 200
+echo $res->getHeaderLine('content-type');
+// 'application/json; charset=utf8'
+echo $res->getBody();
+// '{"id": 1420053, "name": "guzzle", ...}'
+
+// Send an asynchronous request.
+$request = new \GuzzleHttp\Psr7\Request('GET', 'http://httpbin.org');
+$promise = $client->sendAsync($request)->then(function ($response) {
+    echo 'I completed! ' . $response->getBody();
+});
+$promise->wait();
+```
+
+## Help and docs
+
+- [Documentation](http://guzzlephp.org/)
+- [Stack Overflow](http://stackoverflow.com/questions/tagged/guzzle)
+- [Gitter](https://gitter.im/guzzle/guzzle)
+
+
+## Installing Guzzle
+
+The recommended way to install Guzzle is through
+[Composer](http://getcomposer.org).
+
+```bash
+# Install Composer
+curl -sS https://getcomposer.org/installer | php
+```
+
+Next, run the Composer command to install the latest stable version of Guzzle:
+
+```bash
+php composer.phar require guzzlehttp/guzzle
+```
+
+After installing, you need to require Composer's autoloader:
+
+```php
+require 'vendor/autoload.php';
+```
+
+You can then later update Guzzle using composer:
+
+ ```bash
+composer.phar update
+ ```
+
+
+## Version Guidance
+
+| Version | Status     | Packagist           | Namespace    | Repo                | Docs                | PSR-7 | PHP Version |
+|---------|------------|---------------------|--------------|---------------------|---------------------|-------|-------------|
+| 3.x     | EOL        | `guzzle/guzzle`     | `Guzzle`     | [v3][guzzle-3-repo] | [v3][guzzle-3-docs] | No    | >= 5.3.3    |
+| 4.x     | EOL        | `guzzlehttp/guzzle` | `GuzzleHttp` | [v4][guzzle-4-repo] | N/A                 | No    | >= 5.4      |
+| 5.x     | Maintained | `guzzlehttp/guzzle` | `GuzzleHttp` | [v5][guzzle-5-repo] | [v5][guzzle-5-docs] | No    | >= 5.4      |
+| 6.x     | Latest     | `guzzlehttp/guzzle` | `GuzzleHttp` | [v6][guzzle-6-repo] | [v6][guzzle-6-docs] | Yes   | >= 5.5      |
+
+[guzzle-3-repo]: https://github.com/guzzle/guzzle3
+[guzzle-4-repo]: https://github.com/guzzle/guzzle/tree/4.x
+[guzzle-5-repo]: https://github.com/guzzle/guzzle/tree/5.3
+[guzzle-6-repo]: https://github.com/guzzle/guzzle
+[guzzle-3-docs]: http://guzzle3.readthedocs.org/en/latest/
+[guzzle-5-docs]: http://guzzle.readthedocs.org/en/5.3/
+[guzzle-6-docs]: http://guzzle.readthedocs.org/en/latest/
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/UPGRADING.md b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/UPGRADING.md
new file mode 100644
index 0000000..91d1dcc
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/UPGRADING.md
@@ -0,0 +1,1203 @@
+Guzzle Upgrade Guide
+====================
+
+5.0 to 6.0
+----------
+
+Guzzle now uses [PSR-7](http://www.php-fig.org/psr/psr-7/) for HTTP messages.
+Due to the fact that these messages are immutable, this prompted a refactoring
+of Guzzle to use a middleware based system rather than an event system. Any
+HTTP message interaction (e.g., `GuzzleHttp\Message\Request`) need to be
+updated to work with the new immutable PSR-7 request and response objects. Any
+event listeners or subscribers need to be updated to become middleware
+functions that wrap handlers (or are injected into a
+`GuzzleHttp\HandlerStack`).
+
+- Removed `GuzzleHttp\BatchResults`
+- Removed `GuzzleHttp\Collection`
+- Removed `GuzzleHttp\HasDataTrait`
+- Removed `GuzzleHttp\ToArrayInterface`
+- The `guzzlehttp/streams` dependency has been removed. Stream functionality
+  is now present in the `GuzzleHttp\Psr7` namespace provided by the
+  `guzzlehttp/psr7` package.
+- Guzzle no longer uses ReactPHP promises and now uses the
+  `guzzlehttp/promises` library. We use a custom promise library for three
+  significant reasons:
+  1. React promises (at the time of writing this) are recursive. Promise
+     chaining and promise resolution will eventually blow the stack. Guzzle
+     promises are not recursive as they use a sort of trampolining technique.
+     Note: there has been movement in the React project to modify promises to
+     no longer utilize recursion.
+  2. Guzzle needs to have the ability to synchronously block on a promise to
+     wait for a result. Guzzle promises allows this functionality (and does
+     not require the use of recursion).
+  3. Because we need to be able to wait on a result, doing so using React
+     promises requires wrapping react promises with RingPHP futures. This
+     overhead is no longer needed, reducing stack sizes, reducing complexity,
+     and improving performance.
+- `GuzzleHttp\Mimetypes` has been moved to a function in
+  `GuzzleHttp\Psr7\mimetype_from_extension` and
+  `GuzzleHttp\Psr7\mimetype_from_filename`.
+- `GuzzleHttp\Query` and `GuzzleHttp\QueryParser` have been removed. Query
+  strings must now be passed into request objects as strings, or provided to
+  the `query` request option when creating requests with clients. The `query`
+  option uses PHP's `http_build_query` to convert an array to a string. If you
+  need a different serialization technique, you will need to pass the query
+  string in as a string. There are a couple helper functions that will make
+  working with query strings easier: `GuzzleHttp\Psr7\parse_query` and
+  `GuzzleHttp\Psr7\build_query`.
+- Guzzle no longer has a dependency on RingPHP. Due to the use of a middleware
+  system based on PSR-7, using RingPHP and it's middleware system as well adds
+  more complexity than the benefits it provides. All HTTP handlers that were
+  present in RingPHP have been modified to work directly with PSR-7 messages
+  and placed in the `GuzzleHttp\Handler` namespace. This significantly reduces
+  complexity in Guzzle, removes a dependency, and improves performance. RingPHP
+  will be maintained for Guzzle 5 support, but will no longer be a part of
+  Guzzle 6.
+- As Guzzle now uses a middleware based systems the event system and RingPHP
+  integration has been removed. Note: while the event system has been removed,
+  it is possible to add your own type of event system that is powered by the
+  middleware system.
+  - Removed the `Event` namespace.
+  - Removed the `Subscriber` namespace.
+  - Removed `Transaction` class
+  - Removed `RequestFsm`
+  - Removed `RingBridge`
+  - `GuzzleHttp\Subscriber\Cookie` is now provided by
+    `GuzzleHttp\Middleware::cookies`
+  - `GuzzleHttp\Subscriber\HttpError` is now provided by
+    `GuzzleHttp\Middleware::httpError`
+  - `GuzzleHttp\Subscriber\History` is now provided by
+    `GuzzleHttp\Middleware::history`
+  - `GuzzleHttp\Subscriber\Mock` is now provided by
+    `GuzzleHttp\Handler\MockHandler`
+  - `GuzzleHttp\Subscriber\Prepare` is now provided by
+    `GuzzleHttp\PrepareBodyMiddleware`
+  - `GuzzleHttp\Subscriber\Redirect` is now provided by
+    `GuzzleHttp\RedirectMiddleware`
+- Guzzle now uses `Psr\Http\Message\UriInterface` (implements in
+  `GuzzleHttp\Psr7\Uri`) for URI support. `GuzzleHttp\Url` is now gone.
+- Static functions in `GuzzleHttp\Utils` have been moved to namespaced
+  functions under the `GuzzleHttp` namespace. This requires either a Composer
+  based autoloader or you to include functions.php.
+- `GuzzleHttp\ClientInterface::getDefaultOption` has been renamed to
+  `GuzzleHttp\ClientInterface::getConfig`.
+- `GuzzleHttp\ClientInterface::setDefaultOption` has been removed.
+- The `json` and `xml` methods of response objects has been removed. With the
+  migration to strictly adhering to PSR-7 as the interface for Guzzle messages,
+  adding methods to message interfaces would actually require Guzzle messages
+  to extend from PSR-7 messages rather then work with them directly.
+
+## Migrating to middleware
+
+The change to PSR-7 unfortunately required significant refactoring to Guzzle
+due to the fact that PSR-7 messages are immutable. Guzzle 5 relied on an event
+system from plugins. The event system relied on mutability of HTTP messages and
+side effects in order to work. With immutable messages, you have to change your
+workflow to become more about either returning a value (e.g., functional
+middlewares) or setting a value on an object. Guzzle v6 has chosen the
+functional middleware approach.
+
+Instead of using the event system to listen for things like the `before` event,
+you now create a stack based middleware function that intercepts a request on
+the way in and the promise of the response on the way out. This is a much
+simpler and more predictable approach than the event system and works nicely
+with PSR-7 middleware. Due to the use of promises, the middleware system is
+also asynchronous.
+
+v5:
+
+```php
+use GuzzleHttp\Event\BeforeEvent;
+$client = new GuzzleHttp\Client();
+// Get the emitter and listen to the before event.
+$client->getEmitter()->on('before', function (BeforeEvent $e) {
+    // Guzzle v5 events relied on mutation
+    $e->getRequest()->setHeader('X-Foo', 'Bar');
+});
+```
+
+v6:
+
+In v6, you can modify the request before it is sent using the `mapRequest`
+middleware. The idiomatic way in v6 to modify the request/response lifecycle is
+to setup a handler middleware stack up front and inject the handler into a
+client.
+
+```php
+use GuzzleHttp\Middleware;
+// Create a handler stack that has all of the default middlewares attached
+$handler = GuzzleHttp\HandlerStack::create();
+// Push the handler onto the handler stack
+$handler->push(Middleware::mapRequest(function (RequestInterface $request) {
+    // Notice that we have to return a request object
+    return $request->withHeader('X-Foo', 'Bar');
+}));
+// Inject the handler into the client
+$client = new GuzzleHttp\Client(['handler' => $handler]);
+```
+
+## POST Requests
+
+This version added the [`form_params`](http://guzzle.readthedocs.org/en/latest/request-options.html#form_params)
+and `multipart` request options. `form_params` is an associative array of
+strings or array of strings and is used to serialize an
+`application/x-www-form-urlencoded` POST request. The
+[`multipart`](http://guzzle.readthedocs.org/en/latest/request-options.html#multipart)
+option is now used to send a multipart/form-data POST request.
+
+`GuzzleHttp\Post\PostFile` has been removed. Use the `multipart` option to add
+POST files to a multipart/form-data request.
+
+The `body` option no longer accepts an array to send POST requests. Please use
+`multipart` or `form_params` instead.
+
+The `base_url` option has been renamed to `base_uri`.
+
+4.x to 5.0
+----------
+
+## Rewritten Adapter Layer
+
+Guzzle now uses [RingPHP](http://ringphp.readthedocs.org/en/latest) to send
+HTTP requests. The `adapter` option in a `GuzzleHttp\Client` constructor
+is still supported, but it has now been renamed to `handler`. Instead of
+passing a `GuzzleHttp\Adapter\AdapterInterface`, you must now pass a PHP
+`callable` that follows the RingPHP specification.
+
+## Removed Fluent Interfaces
+
+[Fluent interfaces were removed](http://ocramius.github.io/blog/fluent-interfaces-are-evil)
+from the following classes:
+
+- `GuzzleHttp\Collection`
+- `GuzzleHttp\Url`
+- `GuzzleHttp\Query`
+- `GuzzleHttp\Post\PostBody`
+- `GuzzleHttp\Cookie\SetCookie`
+
+## Removed functions.php
+
+Removed "functions.php", so that Guzzle is truly PSR-4 compliant. The following
+functions can be used as replacements.
+
+- `GuzzleHttp\json_decode` -> `GuzzleHttp\Utils::jsonDecode`
+- `GuzzleHttp\get_path` -> `GuzzleHttp\Utils::getPath`
+- `GuzzleHttp\Utils::setPath` -> `GuzzleHttp\set_path`
+- `GuzzleHttp\Pool::batch` -> `GuzzleHttp\batch`. This function is, however,
+  deprecated in favor of using `GuzzleHttp\Pool::batch()`.
+
+The "procedural" global client has been removed with no replacement (e.g.,
+`GuzzleHttp\get()`, `GuzzleHttp\post()`, etc.). Use a `GuzzleHttp\Client`
+object as a replacement.
+
+## `throwImmediately` has been removed
+
+The concept of "throwImmediately" has been removed from exceptions and error
+events. This control mechanism was used to stop a transfer of concurrent
+requests from completing. This can now be handled by throwing the exception or
+by cancelling a pool of requests or each outstanding future request
+individually.
+
+## headers event has been removed
+
+Removed the "headers" event. This event was only useful for changing the
+body a response once the headers of the response were known. You can implement
+a similar behavior in a number of ways. One example might be to use a
+FnStream that has access to the transaction being sent. For example, when the
+first byte is written, you could check if the response headers match your
+expectations, and if so, change the actual stream body that is being
+written to.
+
+## Updates to HTTP Messages
+
+Removed the `asArray` parameter from
+`GuzzleHttp\Message\MessageInterface::getHeader`. If you want to get a header
+value as an array, then use the newly added `getHeaderAsArray()` method of
+`MessageInterface`. This change makes the Guzzle interfaces compatible with
+the PSR-7 interfaces.
+
+3.x to 4.0
+----------
+
+## Overarching changes:
+
+- Now requires PHP 5.4 or greater.
+- No longer requires cURL to send requests.
+- Guzzle no longer wraps every exception it throws. Only exceptions that are
+  recoverable are now wrapped by Guzzle.
+- Various namespaces have been removed or renamed.
+- No longer requiring the Symfony EventDispatcher. A custom event dispatcher
+  based on the Symfony EventDispatcher is
+  now utilized in `GuzzleHttp\Event\EmitterInterface` (resulting in significant
+  speed and functionality improvements).
+
+Changes per Guzzle 3.x namespace are described below.
+
+## Batch
+
+The `Guzzle\Batch` namespace has been removed. This is best left to
+third-parties to implement on top of Guzzle's core HTTP library.
+
+## Cache
+
+The `Guzzle\Cache` namespace has been removed. (Todo: No suitable replacement
+has been implemented yet, but hoping to utilize a PSR cache interface).
+
+## Common
+
+- Removed all of the wrapped exceptions. It's better to use the standard PHP
+  library for unrecoverable exceptions.
+- `FromConfigInterface` has been removed.
+- `Guzzle\Common\Version` has been removed. The VERSION constant can be found
+  at `GuzzleHttp\ClientInterface::VERSION`.
+
+### Collection
+
+- `getAll` has been removed. Use `toArray` to convert a collection to an array.
+- `inject` has been removed.
+- `keySearch` has been removed.
+- `getPath` no longer supports wildcard expressions. Use something better like
+  JMESPath for this.
+- `setPath` now supports appending to an existing array via the `[]` notation.
+
+### Events
+
+Guzzle no longer requires Symfony's EventDispatcher component. Guzzle now uses
+`GuzzleHttp\Event\Emitter`.
+
+- `Symfony\Component\EventDispatcher\EventDispatcherInterface` is replaced by
+  `GuzzleHttp\Event\EmitterInterface`.
+- `Symfony\Component\EventDispatcher\EventDispatcher` is replaced by
+  `GuzzleHttp\Event\Emitter`.
+- `Symfony\Component\EventDispatcher\Event` is replaced by
+  `GuzzleHttp\Event\Event`, and Guzzle now has an EventInterface in
+  `GuzzleHttp\Event\EventInterface`.
+- `AbstractHasDispatcher` has moved to a trait, `HasEmitterTrait`, and
+  `HasDispatcherInterface` has moved to `HasEmitterInterface`. Retrieving the
+  event emitter of a request, client, etc. now uses the `getEmitter` method
+  rather than the `getDispatcher` method.
+
+#### Emitter
+
+- Use the `once()` method to add a listener that automatically removes itself
+  the first time it is invoked.
+- Use the `listeners()` method to retrieve a list of event listeners rather than
+  the `getListeners()` method.
+- Use `emit()` instead of `dispatch()` to emit an event from an emitter.
+- Use `attach()` instead of `addSubscriber()` and `detach()` instead of
+  `removeSubscriber()`.
+
+```php
+$mock = new Mock();
+// 3.x
+$request->getEventDispatcher()->addSubscriber($mock);
+$request->getEventDispatcher()->removeSubscriber($mock);
+// 4.x
+$request->getEmitter()->attach($mock);
+$request->getEmitter()->detach($mock);
+```
+
+Use the `on()` method to add a listener rather than the `addListener()` method.
+
+```php
+// 3.x
+$request->getEventDispatcher()->addListener('foo', function (Event $event) { /* ... */ } );
+// 4.x
+$request->getEmitter()->on('foo', function (Event $event, $name) { /* ... */ } );
+```
+
+## Http
+
+### General changes
+
+- The cacert.pem certificate has been moved to `src/cacert.pem`.
+- Added the concept of adapters that are used to transfer requests over the
+  wire.
+- Simplified the event system.
+- Sending requests in parallel is still possible, but batching is no longer a
+  concept of the HTTP layer. Instead, you must use the `complete` and `error`
+  events to asynchronously manage parallel request transfers.
+- `Guzzle\Http\Url` has moved to `GuzzleHttp\Url`.
+- `Guzzle\Http\QueryString` has moved to `GuzzleHttp\Query`.
+- QueryAggregators have been rewritten so that they are simply callable
+  functions.
+- `GuzzleHttp\StaticClient` has been removed. Use the functions provided in
+  `functions.php` for an easy to use static client instance.
+- Exceptions in `GuzzleHttp\Exception` have been updated to all extend from
+  `GuzzleHttp\Exception\TransferException`.
+
+### Client
+
+Calling methods like `get()`, `post()`, `head()`, etc. no longer create and
+return a request, but rather creates a request, sends the request, and returns
+the response.
+
+```php
+// 3.0
+$request = $client->get('/');
+$response = $request->send();
+
+// 4.0
+$response = $client->get('/');
+
+// or, to mirror the previous behavior
+$request = $client->createRequest('GET', '/');
+$response = $client->send($request);
+```
+
+`GuzzleHttp\ClientInterface` has changed.
+
+- The `send` method no longer accepts more than one request. Use `sendAll` to
+  send multiple requests in parallel.
+- `setUserAgent()` has been removed. Use a default request option instead. You
+  could, for example, do something like:
+  `$client->setConfig('defaults/headers/User-Agent', 'Foo/Bar ' . $client::getDefaultUserAgent())`.
+- `setSslVerification()` has been removed. Use default request options instead,
+  like `$client->setConfig('defaults/verify', true)`.
+
+`GuzzleHttp\Client` has changed.
+
+- The constructor now accepts only an associative array. You can include a
+  `base_url` string or array to use a URI template as the base URL of a client.
+  You can also specify a `defaults` key that is an associative array of default
+  request options. You can pass an `adapter` to use a custom adapter,
+  `batch_adapter` to use a custom adapter for sending requests in parallel, or
+  a `message_factory` to change the factory used to create HTTP requests and
+  responses.
+- The client no longer emits a `client.create_request` event.
+- Creating requests with a client no longer automatically utilize a URI
+  template. You must pass an array into a creational method (e.g.,
+  `createRequest`, `get`, `put`, etc.) in order to expand a URI template.
+
+### Messages
+
+Messages no longer have references to their counterparts (i.e., a request no
+longer has a reference to it's response, and a response no loger has a
+reference to its request). This association is now managed through a
+`GuzzleHttp\Adapter\TransactionInterface` object. You can get references to
+these transaction objects using request events that are emitted over the
+lifecycle of a request.
+
+#### Requests with a body
+
+- `GuzzleHttp\Message\EntityEnclosingRequest` and
+  `GuzzleHttp\Message\EntityEnclosingRequestInterface` have been removed. The
+  separation between requests that contain a body and requests that do not
+  contain a body has been removed, and now `GuzzleHttp\Message\RequestInterface`
+  handles both use cases.
+- Any method that previously accepts a `GuzzleHttp\Response` object now accept a
+  `GuzzleHttp\Message\ResponseInterface`.
+- `GuzzleHttp\Message\RequestFactoryInterface` has been renamed to
+  `GuzzleHttp\Message\MessageFactoryInterface`. This interface is used to create
+  both requests and responses and is implemented in
+  `GuzzleHttp\Message\MessageFactory`.
+- POST field and file methods have been removed from the request object. You
+  must now use the methods made available to `GuzzleHttp\Post\PostBodyInterface`
+  to control the format of a POST body. Requests that are created using a
+  standard `GuzzleHttp\Message\MessageFactoryInterface` will automatically use
+  a `GuzzleHttp\Post\PostBody` body if the body was passed as an array or if
+  the method is POST and no body is provided.
+
+```php
+$request = $client->createRequest('POST', '/');
+$request->getBody()->setField('foo', 'bar');
+$request->getBody()->addFile(new PostFile('file_key', fopen('/path/to/content', 'r')));
+```
+
+#### Headers
+
+- `GuzzleHttp\Message\Header` has been removed. Header values are now simply
+  represented by an array of values or as a string. Header values are returned
+  as a string by default when retrieving a header value from a message. You can
+  pass an optional argument of `true` to retrieve a header value as an array
+  of strings instead of a single concatenated string.
+- `GuzzleHttp\PostFile` and `GuzzleHttp\PostFileInterface` have been moved to
+  `GuzzleHttp\Post`. This interface has been simplified and now allows the
+  addition of arbitrary headers.
+- Custom headers like `GuzzleHttp\Message\Header\Link` have been removed. Most
+  of the custom headers are now handled separately in specific
+  subscribers/plugins, and `GuzzleHttp\Message\HeaderValues::parseParams()` has
+  been updated to properly handle headers that contain parameters (like the
+  `Link` header).
+
+#### Responses
+
+- `GuzzleHttp\Message\Response::getInfo()` and
+  `GuzzleHttp\Message\Response::setInfo()` have been removed. Use the event
+  system to retrieve this type of information.
+- `GuzzleHttp\Message\Response::getRawHeaders()` has been removed.
+- `GuzzleHttp\Message\Response::getMessage()` has been removed.
+- `GuzzleHttp\Message\Response::calculateAge()` and other cache specific
+  methods have moved to the CacheSubscriber.
+- Header specific helper functions like `getContentMd5()` have been removed.
+  Just use `getHeader('Content-MD5')` instead.
+- `GuzzleHttp\Message\Response::setRequest()` and
+  `GuzzleHttp\Message\Response::getRequest()` have been removed. Use the event
+  system to work with request and response objects as a transaction.
+- `GuzzleHttp\Message\Response::getRedirectCount()` has been removed. Use the
+  Redirect subscriber instead.
+- `GuzzleHttp\Message\Response::isSuccessful()` and other related methods have
+  been removed. Use `getStatusCode()` instead.
+
+#### Streaming responses
+
+Streaming requests can now be created by a client directly, returning a
+`GuzzleHttp\Message\ResponseInterface` object that contains a body stream
+referencing an open PHP HTTP stream.
+
+```php
+// 3.0
+use Guzzle\Stream\PhpStreamRequestFactory;
+$request = $client->get('/');
+$factory = new PhpStreamRequestFactory();
+$stream = $factory->fromRequest($request);
+$data = $stream->read(1024);
+
+// 4.0
+$response = $client->get('/', ['stream' => true]);
+// Read some data off of the stream in the response body
+$data = $response->getBody()->read(1024);
+```
+
+#### Redirects
+
+The `configureRedirects()` method has been removed in favor of a
+`allow_redirects` request option.
+
+```php
+// Standard redirects with a default of a max of 5 redirects
+$request = $client->createRequest('GET', '/', ['allow_redirects' => true]);
+
+// Strict redirects with a custom number of redirects
+$request = $client->createRequest('GET', '/', [
+    'allow_redirects' => ['max' => 5, 'strict' => true]
+]);
+```
+
+#### EntityBody
+
+EntityBody interfaces and classes have been removed or moved to
+`GuzzleHttp\Stream`. All classes and interfaces that once required
+`GuzzleHttp\EntityBodyInterface` now require
+`GuzzleHttp\Stream\StreamInterface`. Creating a new body for a request no
+longer uses `GuzzleHttp\EntityBody::factory` but now uses
+`GuzzleHttp\Stream\Stream::factory` or even better:
+`GuzzleHttp\Stream\create()`.
+
+- `Guzzle\Http\EntityBodyInterface` is now `GuzzleHttp\Stream\StreamInterface`
+- `Guzzle\Http\EntityBody` is now `GuzzleHttp\Stream\Stream`
+- `Guzzle\Http\CachingEntityBody` is now `GuzzleHttp\Stream\CachingStream`
+- `Guzzle\Http\ReadLimitEntityBody` is now `GuzzleHttp\Stream\LimitStream`
+- `Guzzle\Http\IoEmittyinEntityBody` has been removed.
+
+#### Request lifecycle events
+
+Requests previously submitted a large number of requests. The number of events
+emitted over the lifecycle of a request has been significantly reduced to make
+it easier to understand how to extend the behavior of a request. All events
+emitted during the lifecycle of a request now emit a custom
+`GuzzleHttp\Event\EventInterface` object that contains context providing
+methods and a way in which to modify the transaction at that specific point in
+time (e.g., intercept the request and set a response on the transaction).
+
+- `request.before_send` has been renamed to `before` and now emits a
+  `GuzzleHttp\Event\BeforeEvent`
+- `request.complete` has been renamed to `complete` and now emits a
+  `GuzzleHttp\Event\CompleteEvent`.
+- `request.sent` has been removed. Use `complete`.
+- `request.success` has been removed. Use `complete`.
+- `error` is now an event that emits a `GuzzleHttp\Event\ErrorEvent`.
+- `request.exception` has been removed. Use `error`.
+- `request.receive.status_line` has been removed.
+- `curl.callback.progress` has been removed. Use a custom `StreamInterface` to
+  maintain a status update.
+- `curl.callback.write` has been removed. Use a custom `StreamInterface` to
+  intercept writes.
+- `curl.callback.read` has been removed. Use a custom `StreamInterface` to
+  intercept reads.
+
+`headers` is a new event that is emitted after the response headers of a
+request have been received before the body of the response is downloaded. This
+event emits a `GuzzleHttp\Event\HeadersEvent`.
+
+You can intercept a request and inject a response using the `intercept()` event
+of a `GuzzleHttp\Event\BeforeEvent`, `GuzzleHttp\Event\CompleteEvent`, and
+`GuzzleHttp\Event\ErrorEvent` event.
+
+See: http://docs.guzzlephp.org/en/latest/events.html
+
+## Inflection
+
+The `Guzzle\Inflection` namespace has been removed. This is not a core concern
+of Guzzle.
+
+## Iterator
+
+The `Guzzle\Iterator` namespace has been removed.
+
+- `Guzzle\Iterator\AppendIterator`, `Guzzle\Iterator\ChunkedIterator`, and
+  `Guzzle\Iterator\MethodProxyIterator` are nice, but not a core requirement of
+  Guzzle itself.
+- `Guzzle\Iterator\FilterIterator` is no longer needed because an equivalent
+  class is shipped with PHP 5.4.
+- `Guzzle\Iterator\MapIterator` is not really needed when using PHP 5.5 because
+  it's easier to just wrap an iterator in a generator that maps values.
+
+For a replacement of these iterators, see https://github.com/nikic/iter
+
+## Log
+
+The LogPlugin has moved to https://github.com/guzzle/log-subscriber. The
+`Guzzle\Log` namespace has been removed. Guzzle now relies on
+`Psr\Log\LoggerInterface` for all logging. The MessageFormatter class has been
+moved to `GuzzleHttp\Subscriber\Log\Formatter`.
+
+## Parser
+
+The `Guzzle\Parser` namespace has been removed. This was previously used to
+make it possible to plug in custom parsers for cookies, messages, URI
+templates, and URLs; however, this level of complexity is not needed in Guzzle
+so it has been removed.
+
+- Cookie: Cookie parsing logic has been moved to
+  `GuzzleHttp\Cookie\SetCookie::fromString`.
+- Message: Message parsing logic for both requests and responses has been moved
+  to `GuzzleHttp\Message\MessageFactory::fromMessage`. Message parsing is only
+  used in debugging or deserializing messages, so it doesn't make sense for
+  Guzzle as a library to add this level of complexity to parsing messages.
+- UriTemplate: URI template parsing has been moved to
+  `GuzzleHttp\UriTemplate`. The Guzzle library will automatically use the PECL
+  URI template library if it is installed.
+- Url: URL parsing is now performed in `GuzzleHttp\Url::fromString` (previously
+  it was `Guzzle\Http\Url::factory()`). If custom URL parsing is necessary,
+  then developers are free to subclass `GuzzleHttp\Url`.
+
+## Plugin
+
+The `Guzzle\Plugin` namespace has been renamed to `GuzzleHttp\Subscriber`.
+Several plugins are shipping with the core Guzzle library under this namespace.
+
+- `GuzzleHttp\Subscriber\Cookie`: Replaces the old CookiePlugin. Cookie jar
+  code has moved to `GuzzleHttp\Cookie`.
+- `GuzzleHttp\Subscriber\History`: Replaces the old HistoryPlugin.
+- `GuzzleHttp\Subscriber\HttpError`: Throws errors when a bad HTTP response is
+  received.
+- `GuzzleHttp\Subscriber\Mock`: Replaces the old MockPlugin.
+- `GuzzleHttp\Subscriber\Prepare`: Prepares the body of a request just before
+  sending. This subscriber is attached to all requests by default.
+- `GuzzleHttp\Subscriber\Redirect`: Replaces the RedirectPlugin.
+
+The following plugins have been removed (third-parties are free to re-implement
+these if needed):
+
+- `GuzzleHttp\Plugin\Async` has been removed.
+- `GuzzleHttp\Plugin\CurlAuth` has been removed.
+- `GuzzleHttp\Plugin\ErrorResponse\ErrorResponsePlugin` has been removed. This
+  functionality should instead be implemented with event listeners that occur
+  after normal response parsing occurs in the guzzle/command package.
+
+The following plugins are not part of the core Guzzle package, but are provided
+in separate repositories:
+
+- `Guzzle\Http\Plugin\BackoffPlugin` has been rewritten to be much simpler
+  to build custom retry policies using simple functions rather than various
+  chained classes. See: https://github.com/guzzle/retry-subscriber
+- `Guzzle\Http\Plugin\Cache\CachePlugin` has moved to
+  https://github.com/guzzle/cache-subscriber
+- `Guzzle\Http\Plugin\Log\LogPlugin` has moved to
+  https://github.com/guzzle/log-subscriber
+- `Guzzle\Http\Plugin\Md5\Md5Plugin` has moved to
+  https://github.com/guzzle/message-integrity-subscriber
+- `Guzzle\Http\Plugin\Mock\MockPlugin` has moved to
+  `GuzzleHttp\Subscriber\MockSubscriber`.
+- `Guzzle\Http\Plugin\Oauth\OauthPlugin` has moved to
+  https://github.com/guzzle/oauth-subscriber
+
+## Service
+
+The service description layer of Guzzle has moved into two separate packages:
+
+- http://github.com/guzzle/command Provides a high level abstraction over web
+  services by representing web service operations using commands.
+- http://github.com/guzzle/guzzle-services Provides an implementation of
+  guzzle/command that provides request serialization and response parsing using
+  Guzzle service descriptions.
+
+## Stream
+
+Stream have moved to a separate package available at
+https://github.com/guzzle/streams.
+
+`Guzzle\Stream\StreamInterface` has been given a large update to cleanly take
+on the responsibilities of `Guzzle\Http\EntityBody` and
+`Guzzle\Http\EntityBodyInterface` now that they have been removed. The number
+of methods implemented by the `StreamInterface` has been drastically reduced to
+allow developers to more easily extend and decorate stream behavior.
+
+## Removed methods from StreamInterface
+
+- `getStream` and `setStream` have been removed to better encapsulate streams.
+- `getMetadata` and `setMetadata` have been removed in favor of
+  `GuzzleHttp\Stream\MetadataStreamInterface`.
+- `getWrapper`, `getWrapperData`, `getStreamType`, and `getUri` have all been
+  removed. This data is accessible when
+  using streams that implement `GuzzleHttp\Stream\MetadataStreamInterface`.
+- `rewind` has been removed. Use `seek(0)` for a similar behavior.
+
+## Renamed methods
+
+- `detachStream` has been renamed to `detach`.
+- `feof` has been renamed to `eof`.
+- `ftell` has been renamed to `tell`.
+- `readLine` has moved from an instance method to a static class method of
+  `GuzzleHttp\Stream\Stream`.
+
+## Metadata streams
+
+`GuzzleHttp\Stream\MetadataStreamInterface` has been added to denote streams
+that contain additional metadata accessible via `getMetadata()`.
+`GuzzleHttp\Stream\StreamInterface::getMetadata` and
+`GuzzleHttp\Stream\StreamInterface::setMetadata` have been removed.
+
+## StreamRequestFactory
+
+The entire concept of the StreamRequestFactory has been removed. The way this
+was used in Guzzle 3 broke the actual interface of sending streaming requests
+(instead of getting back a Response, you got a StreamInterface). Streaming
+PHP requests are now implemented through the `GuzzleHttp\Adapter\StreamAdapter`.
+
+3.6 to 3.7
+----------
+
+### Deprecations
+
+- You can now enable E_USER_DEPRECATED warnings to see if you are using any deprecated methods.:
+
+```php
+\Guzzle\Common\Version::$emitWarnings = true;
+```
+
+The following APIs and options have been marked as deprecated:
+
+- Marked `Guzzle\Http\Message\Request::isResponseBodyRepeatable()` as deprecated. Use `$request->getResponseBody()->isRepeatable()` instead.
+- Marked `Guzzle\Http\Message\Request::canCache()` as deprecated. Use `Guzzle\Plugin\Cache\DefaultCanCacheStrategy->canCacheRequest()` instead.
+- Marked `Guzzle\Http\Message\Request::canCache()` as deprecated. Use `Guzzle\Plugin\Cache\DefaultCanCacheStrategy->canCacheRequest()` instead.
+- Marked `Guzzle\Http\Message\Request::setIsRedirect()` as deprecated. Use the HistoryPlugin instead.
+- Marked `Guzzle\Http\Message\Request::isRedirect()` as deprecated. Use the HistoryPlugin instead.
+- Marked `Guzzle\Cache\CacheAdapterFactory::factory()` as deprecated
+- Marked `Guzzle\Service\Client::enableMagicMethods()` as deprecated. Magic methods can no longer be disabled on a Guzzle\Service\Client.
+- Marked `Guzzle\Parser\Url\UrlParser` as deprecated. Just use PHP's `parse_url()` and percent encode your UTF-8.
+- Marked `Guzzle\Common\Collection::inject()` as deprecated.
+- Marked `Guzzle\Plugin\CurlAuth\CurlAuthPlugin` as deprecated. Use
+  `$client->getConfig()->setPath('request.options/auth', array('user', 'pass', 'Basic|Digest|NTLM|Any'));` or
+  `$client->setDefaultOption('auth', array('user', 'pass', 'Basic|Digest|NTLM|Any'));`
+
+3.7 introduces `request.options` as a parameter for a client configuration and as an optional argument to all creational
+request methods. When paired with a client's configuration settings, these options allow you to specify default settings
+for various aspects of a request. Because these options make other previous configuration options redundant, several
+configuration options and methods of a client and AbstractCommand have been deprecated.
+
+- Marked `Guzzle\Service\Client::getDefaultHeaders()` as deprecated. Use `$client->getDefaultOption('headers')`.
+- Marked `Guzzle\Service\Client::setDefaultHeaders()` as deprecated. Use `$client->setDefaultOption('headers/{header_name}', 'value')`.
+- Marked 'request.params' for `Guzzle\Http\Client` as deprecated. Use `$client->setDefaultOption('params/{param_name}', 'value')`
+- Marked 'command.headers', 'command.response_body' and 'command.on_complete' as deprecated for AbstractCommand. These will work through Guzzle 4.0
+
+        $command = $client->getCommand('foo', array(
+            'command.headers' => array('Test' => '123'),
+            'command.response_body' => '/path/to/file'
+        ));
+
+        // Should be changed to:
+
+        $command = $client->getCommand('foo', array(
+            'command.request_options' => array(
+                'headers' => array('Test' => '123'),
+                'save_as' => '/path/to/file'
+            )
+        ));
+
+### Interface changes
+
+Additions and changes (you will need to update any implementations or subclasses you may have created):
+
+- Added an `$options` argument to the end of the following methods of `Guzzle\Http\ClientInterface`:
+  createRequest, head, delete, put, patch, post, options, prepareRequest
+- Added an `$options` argument to the end of `Guzzle\Http\Message\Request\RequestFactoryInterface::createRequest()`
+- Added an `applyOptions()` method to `Guzzle\Http\Message\Request\RequestFactoryInterface`
+- Changed `Guzzle\Http\ClientInterface::get($uri = null, $headers = null, $body = null)` to
+  `Guzzle\Http\ClientInterface::get($uri = null, $headers = null, $options = array())`. You can still pass in a
+  resource, string, or EntityBody into the $options parameter to specify the download location of the response.
+- Changed `Guzzle\Common\Collection::__construct($data)` to no longer accepts a null value for `$data` but a
+  default `array()`
+- Added `Guzzle\Stream\StreamInterface::isRepeatable`
+- Made `Guzzle\Http\Client::expandTemplate` and `getUriTemplate` protected methods.
+
+The following methods were removed from interfaces. All of these methods are still available in the concrete classes
+that implement them, but you should update your code to use alternative methods:
+
+- Removed `Guzzle\Http\ClientInterface::setDefaultHeaders(). Use
+  `$client->getConfig()->setPath('request.options/headers/{header_name}', 'value')`. or
+  `$client->getConfig()->setPath('request.options/headers', array('header_name' => 'value'))` or
+  `$client->setDefaultOption('headers/{header_name}', 'value')`. or
+  `$client->setDefaultOption('headers', array('header_name' => 'value'))`.
+- Removed `Guzzle\Http\ClientInterface::getDefaultHeaders(). Use `$client->getConfig()->getPath('request.options/headers')`.
+- Removed `Guzzle\Http\ClientInterface::expandTemplate()`. This is an implementation detail.
+- Removed `Guzzle\Http\ClientInterface::setRequestFactory()`. This is an implementation detail.
+- Removed `Guzzle\Http\ClientInterface::getCurlMulti()`. This is a very specific implementation detail.
+- Removed `Guzzle\Http\Message\RequestInterface::canCache`. Use the CachePlugin.
+- Removed `Guzzle\Http\Message\RequestInterface::setIsRedirect`. Use the HistoryPlugin.
+- Removed `Guzzle\Http\Message\RequestInterface::isRedirect`. Use the HistoryPlugin.
+
+### Cache plugin breaking changes
+
+- CacheKeyProviderInterface and DefaultCacheKeyProvider are no longer used. All of this logic is handled in a
+  CacheStorageInterface. These two objects and interface will be removed in a future version.
+- Always setting X-cache headers on cached responses
+- Default cache TTLs are now handled by the CacheStorageInterface of a CachePlugin
+- `CacheStorageInterface::cache($key, Response $response, $ttl = null)` has changed to `cache(RequestInterface
+  $request, Response $response);`
+- `CacheStorageInterface::fetch($key)` has changed to `fetch(RequestInterface $request);`
+- `CacheStorageInterface::delete($key)` has changed to `delete(RequestInterface $request);`
+- Added `CacheStorageInterface::purge($url)`
+- `DefaultRevalidation::__construct(CacheKeyProviderInterface $cacheKey, CacheStorageInterface $cache, CachePlugin
+  $plugin)` has changed to `DefaultRevalidation::__construct(CacheStorageInterface $cache,
+  CanCacheStrategyInterface $canCache = null)`
+- Added `RevalidationInterface::shouldRevalidate(RequestInterface $request, Response $response)`
+
+3.5 to 3.6
+----------
+
+* Mixed casing of headers are now forced to be a single consistent casing across all values for that header.
+* Messages internally use a HeaderCollection object to delegate handling case-insensitive header resolution
+* Removed the whole changedHeader() function system of messages because all header changes now go through addHeader().
+  For example, setHeader() first removes the header using unset on a HeaderCollection and then calls addHeader().
+  Keeping the Host header and URL host in sync is now handled by overriding the addHeader method in Request.
+* Specific header implementations can be created for complex headers. When a message creates a header, it uses a
+  HeaderFactory which can map specific headers to specific header classes. There is now a Link header and
+  CacheControl header implementation.
+* Moved getLinks() from Response to just be used on a Link header object.
+
+If you previously relied on Guzzle\Http\Message\Header::raw(), then you will need to update your code to use the
+HeaderInterface (e.g. toArray(), getAll(), etc.).
+
+### Interface changes
+
+* Removed from interface: Guzzle\Http\ClientInterface::setUriTemplate
+* Removed from interface: Guzzle\Http\ClientInterface::setCurlMulti()
+* Removed Guzzle\Http\Message\Request::receivedRequestHeader() and implemented this functionality in
+  Guzzle\Http\Curl\RequestMediator
+* Removed the optional $asString parameter from MessageInterface::getHeader(). Just cast the header to a string.
+* Removed the optional $tryChunkedTransfer option from Guzzle\Http\Message\EntityEnclosingRequestInterface
+* Removed the $asObjects argument from Guzzle\Http\Message\MessageInterface::getHeaders()
+
+### Removed deprecated functions
+
+* Removed Guzzle\Parser\ParserRegister::get(). Use getParser()
+* Removed Guzzle\Parser\ParserRegister::set(). Use registerParser().
+
+### Deprecations
+
+* The ability to case-insensitively search for header values
+* Guzzle\Http\Message\Header::hasExactHeader
+* Guzzle\Http\Message\Header::raw. Use getAll()
+* Deprecated cache control specific methods on Guzzle\Http\Message\AbstractMessage. Use the CacheControl header object
+  instead.
+
+### Other changes
+
+* All response header helper functions return a string rather than mixing Header objects and strings inconsistently
+* Removed cURL blacklist support. This is no longer necessary now that Expect, Accept, etc. are managed by Guzzle
+  directly via interfaces
+* Removed the injecting of a request object onto a response object. The methods to get and set a request still exist
+  but are a no-op until removed.
+* Most classes that used to require a `Guzzle\Service\Command\CommandInterface` typehint now request a
+  `Guzzle\Service\Command\ArrayCommandInterface`.
+* Added `Guzzle\Http\Message\RequestInterface::startResponse()` to the RequestInterface to handle injecting a response
+  on a request while the request is still being transferred
+* `Guzzle\Service\Command\CommandInterface` now extends from ToArrayInterface and ArrayAccess
+
+3.3 to 3.4
+----------
+
+Base URLs of a client now follow the rules of http://tools.ietf.org/html/rfc3986#section-5.2.2 when merging URLs.
+
+3.2 to 3.3
+----------
+
+### Response::getEtag() quote stripping removed
+
+`Guzzle\Http\Message\Response::getEtag()` no longer strips quotes around the ETag response header
+
+### Removed `Guzzle\Http\Utils`
+
+The `Guzzle\Http\Utils` class was removed. This class was only used for testing.
+
+### Stream wrapper and type
+
+`Guzzle\Stream\Stream::getWrapper()` and `Guzzle\Stream\Stream::getStreamType()` are no longer converted to lowercase.
+
+### curl.emit_io became emit_io
+
+Emitting IO events from a RequestMediator is now a parameter that must be set in a request's curl options using the
+'emit_io' key. This was previously set under a request's parameters using 'curl.emit_io'
+
+3.1 to 3.2
+----------
+
+### CurlMulti is no longer reused globally
+
+Before 3.2, the same CurlMulti object was reused globally for each client. This can cause issue where plugins added
+to a single client can pollute requests dispatched from other clients.
+
+If you still wish to reuse the same CurlMulti object with each client, then you can add a listener to the
+ServiceBuilder's `service_builder.create_client` event to inject a custom CurlMulti object into each client as it is
+created.
+
+```php
+$multi = new Guzzle\Http\Curl\CurlMulti();
+$builder = Guzzle\Service\Builder\ServiceBuilder::factory('/path/to/config.json');
+$builder->addListener('service_builder.create_client', function ($event) use ($multi) {
+    $event['client']->setCurlMulti($multi);
+}
+});
+```
+
+### No default path
+
+URLs no longer have a default path value of '/' if no path was specified.
+
+Before:
+
+```php
+$request = $client->get('http://www.foo.com');
+echo $request->getUrl();
+// >> http://www.foo.com/
+```
+
+After:
+
+```php
+$request = $client->get('http://www.foo.com');
+echo $request->getUrl();
+// >> http://www.foo.com
+```
+
+### Less verbose BadResponseException
+
+The exception message for `Guzzle\Http\Exception\BadResponseException` no longer contains the full HTTP request and
+response information. You can, however, get access to the request and response object by calling `getRequest()` or
+`getResponse()` on the exception object.
+
+### Query parameter aggregation
+
+Multi-valued query parameters are no longer aggregated using a callback function. `Guzzle\Http\Query` now has a
+setAggregator() method that accepts a `Guzzle\Http\QueryAggregator\QueryAggregatorInterface` object. This object is
+responsible for handling the aggregation of multi-valued query string variables into a flattened hash.
+
+2.8 to 3.x
+----------
+
+### Guzzle\Service\Inspector
+
+Change `\Guzzle\Service\Inspector::fromConfig` to `\Guzzle\Common\Collection::fromConfig`
+
+**Before**
+
+```php
+use Guzzle\Service\Inspector;
+
+class YourClient extends \Guzzle\Service\Client
+{
+    public static function factory($config = array())
+    {
+        $default = array();
+        $required = array('base_url', 'username', 'api_key');
+        $config = Inspector::fromConfig($config, $default, $required);
+
+        $client = new self(
+            $config->get('base_url'),
+            $config->get('username'),
+            $config->get('api_key')
+        );
+        $client->setConfig($config);
+
+        $client->setDescription(ServiceDescription::factory(__DIR__ . DIRECTORY_SEPARATOR . 'client.json'));
+
+        return $client;
+    }
+```
+
+**After**
+
+```php
+use Guzzle\Common\Collection;
+
+class YourClient extends \Guzzle\Service\Client
+{
+    public static function factory($config = array())
+    {
+        $default = array();
+        $required = array('base_url', 'username', 'api_key');
+        $config = Collection::fromConfig($config, $default, $required);
+
+        $client = new self(
+            $config->get('base_url'),
+            $config->get('username'),
+            $config->get('api_key')
+        );
+        $client->setConfig($config);
+
+        $client->setDescription(ServiceDescription::factory(__DIR__ . DIRECTORY_SEPARATOR . 'client.json'));
+
+        return $client;
+    }
+```
+
+### Convert XML Service Descriptions to JSON
+
+**Before**
+
+```xml
+<?xml version="1.0" encoding="UTF-8"?>
+<client>
+    <commands>
+        <!-- Groups -->
+        <command name="list_groups" method="GET" uri="groups.json">
+            <doc>Get a list of groups</doc>
+        </command>
+        <command name="search_groups" method="GET" uri='search.json?query="{{query}} type:group"'>
+            <doc>Uses a search query to get a list of groups</doc>
+            <param name="query" type="string" required="true" />
+        </command>
+        <command name="create_group" method="POST" uri="groups.json">
+            <doc>Create a group</doc>
+            <param name="data" type="array" location="body" filters="json_encode" doc="Group JSON"/>
+            <param name="Content-Type" location="header" static="application/json"/>
+        </command>
+        <command name="delete_group" method="DELETE" uri="groups/{{id}}.json">
+            <doc>Delete a group by ID</doc>
+            <param name="id" type="integer" required="true"/>
+        </command>
+        <command name="get_group" method="GET" uri="groups/{{id}}.json">
+            <param name="id" type="integer" required="true"/>
+        </command>
+        <command name="update_group" method="PUT" uri="groups/{{id}}.json">
+            <doc>Update a group</doc>
+            <param name="id" type="integer" required="true"/>
+            <param name="data" type="array" location="body" filters="json_encode" doc="Group JSON"/>
+            <param name="Content-Type" location="header" static="application/json"/>
+        </command>
+    </commands>
+</client>
+```
+
+**After**
+
+```json
+{
+    "name":       "Zendesk REST API v2",
+    "apiVersion": "2012-12-31",
+    "description":"Provides access to Zendesk views, groups, tickets, ticket fields, and users",
+    "operations": {
+        "list_groups":  {
+            "httpMethod":"GET",
+            "uri":       "groups.json",
+            "summary":   "Get a list of groups"
+        },
+        "search_groups":{
+            "httpMethod":"GET",
+            "uri":       "search.json?query=\"{query} type:group\"",
+            "summary":   "Uses a search query to get a list of groups",
+            "parameters":{
+                "query":{
+                    "location":   "uri",
+                    "description":"Zendesk Search Query",
+                    "type":       "string",
+                    "required":   true
+                }
+            }
+        },
+        "create_group": {
+            "httpMethod":"POST",
+            "uri":       "groups.json",
+            "summary":   "Create a group",
+            "parameters":{
+                "data":        {
+                    "type":       "array",
+                    "location":   "body",
+                    "description":"Group JSON",
+                    "filters":    "json_encode",
+                    "required":   true
+                },
+                "Content-Type":{
+                    "type":    "string",
+                    "location":"header",
+                    "static":  "application/json"
+                }
+            }
+        },
+        "delete_group": {
+            "httpMethod":"DELETE",
+            "uri":       "groups/{id}.json",
+            "summary":   "Delete a group",
+            "parameters":{
+                "id":{
+                    "location":   "uri",
+                    "description":"Group to delete by ID",
+                    "type":       "integer",
+                    "required":   true
+                }
+            }
+        },
+        "get_group":    {
+            "httpMethod":"GET",
+            "uri":       "groups/{id}.json",
+            "summary":   "Get a ticket",
+            "parameters":{
+                "id":{
+                    "location":   "uri",
+                    "description":"Group to get by ID",
+                    "type":       "integer",
+                    "required":   true
+                }
+            }
+        },
+        "update_group": {
+            "httpMethod":"PUT",
+            "uri":       "groups/{id}.json",
+            "summary":   "Update a group",
+            "parameters":{
+                "id":          {
+                    "location":   "uri",
+                    "description":"Group to update by ID",
+                    "type":       "integer",
+                    "required":   true
+                },
+                "data":        {
+                    "type":       "array",
+                    "location":   "body",
+                    "description":"Group JSON",
+                    "filters":    "json_encode",
+                    "required":   true
+                },
+                "Content-Type":{
+                    "type":    "string",
+                    "location":"header",
+                    "static":  "application/json"
+                }
+            }
+        }
+}
+```
+
+### Guzzle\Service\Description\ServiceDescription
+
+Commands are now called Operations
+
+**Before**
+
+```php
+use Guzzle\Service\Description\ServiceDescription;
+
+$sd = new ServiceDescription();
+$sd->getCommands();     // @returns ApiCommandInterface[]
+$sd->hasCommand($name);
+$sd->getCommand($name); // @returns ApiCommandInterface|null
+$sd->addCommand($command); // @param ApiCommandInterface $command
+```
+
+**After**
+
+```php
+use Guzzle\Service\Description\ServiceDescription;
+
+$sd = new ServiceDescription();
+$sd->getOperations();           // @returns OperationInterface[]
+$sd->hasOperation($name);
+$sd->getOperation($name);       // @returns OperationInterface|null
+$sd->addOperation($operation);  // @param OperationInterface $operation
+```
+
+### Guzzle\Common\Inflection\Inflector
+
+Namespace is now `Guzzle\Inflection\Inflector`
+
+### Guzzle\Http\Plugin
+
+Namespace is now `Guzzle\Plugin`. Many other changes occur within this namespace and are detailed in their own sections below.
+
+### Guzzle\Http\Plugin\LogPlugin and Guzzle\Common\Log
+
+Now `Guzzle\Plugin\Log\LogPlugin` and `Guzzle\Log` respectively.
+
+**Before**
+
+```php
+use Guzzle\Common\Log\ClosureLogAdapter;
+use Guzzle\Http\Plugin\LogPlugin;
+
+/** @var \Guzzle\Http\Client */
+$client;
+
+// $verbosity is an integer indicating desired message verbosity level
+$client->addSubscriber(new LogPlugin(new ClosureLogAdapter(function($m) { echo $m; }, $verbosity = LogPlugin::LOG_VERBOSE);
+```
+
+**After**
+
+```php
+use Guzzle\Log\ClosureLogAdapter;
+use Guzzle\Log\MessageFormatter;
+use Guzzle\Plugin\Log\LogPlugin;
+
+/** @var \Guzzle\Http\Client */
+$client;
+
+// $format is a string indicating desired message format -- @see MessageFormatter
+$client->addSubscriber(new LogPlugin(new ClosureLogAdapter(function($m) { echo $m; }, $format = MessageFormatter::DEBUG_FORMAT);
+```
+
+### Guzzle\Http\Plugin\CurlAuthPlugin
+
+Now `Guzzle\Plugin\CurlAuth\CurlAuthPlugin`.
+
+### Guzzle\Http\Plugin\ExponentialBackoffPlugin
+
+Now `Guzzle\Plugin\Backoff\BackoffPlugin`, and other changes.
+
+**Before**
+
+```php
+use Guzzle\Http\Plugin\ExponentialBackoffPlugin;
+
+$backoffPlugin = new ExponentialBackoffPlugin($maxRetries, array_merge(
+        ExponentialBackoffPlugin::getDefaultFailureCodes(), array(429)
+    ));
+
+$client->addSubscriber($backoffPlugin);
+```
+
+**After**
+
+```php
+use Guzzle\Plugin\Backoff\BackoffPlugin;
+use Guzzle\Plugin\Backoff\HttpBackoffStrategy;
+
+// Use convenient factory method instead -- see implementation for ideas of what
+// you can do with chaining backoff strategies
+$backoffPlugin = BackoffPlugin::getExponentialBackoff($maxRetries, array_merge(
+        HttpBackoffStrategy::getDefaultFailureCodes(), array(429)
+    ));
+$client->addSubscriber($backoffPlugin);
+```
+
+### Known Issues
+
+#### [BUG] Accept-Encoding header behavior changed unintentionally.
+
+(See #217) (Fixed in 09daeb8c666fb44499a0646d655a8ae36456575e)
+
+In version 2.8 setting the `Accept-Encoding` header would set the CURLOPT_ENCODING option, which permitted cURL to
+properly handle gzip/deflate compressed responses from the server. In versions affected by this bug this does not happen.
+See issue #217 for a workaround, or use a version containing the fix.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/composer.json b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/composer.json
new file mode 100644
index 0000000..65687a5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/composer.json
@@ -0,0 +1,44 @@
+{
+    "name": "guzzlehttp/guzzle",
+    "type": "library",
+    "description": "Guzzle is a PHP HTTP client library",
+    "keywords": ["framework", "http", "rest", "web service", "curl", "client", "HTTP client"],
+    "homepage": "http://guzzlephp.org/",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Michael Dowling",
+            "email": "mtdowling@gmail.com",
+            "homepage": "https://github.com/mtdowling"
+        }
+    ],
+    "require": {
+        "php": ">=5.5",
+        "guzzlehttp/psr7": "^1.4",
+        "guzzlehttp/promises": "^1.0"
+    },
+    "require-dev": {
+        "ext-curl": "*",
+        "phpunit/phpunit": "^4.0 || ^5.0",
+        "psr/log": "^1.0"
+    },
+    "autoload": {
+        "files": ["src/functions_include.php"],
+        "psr-4": {
+            "GuzzleHttp\\": "src/"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "GuzzleHttp\\Tests\\": "tests/"
+        }
+    },
+    "suggest": {
+        "psr/log": "Required for using the Log middleware"
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "6.2-dev"
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Client.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Client.php
new file mode 100644
index 0000000..de4df8a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Client.php
@@ -0,0 +1,414 @@
+<?php
+namespace GuzzleHttp;
+
+use GuzzleHttp\Cookie\CookieJar;
+use GuzzleHttp\Promise;
+use GuzzleHttp\Psr7;
+use Psr\Http\Message\UriInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * @method ResponseInterface get(string|UriInterface $uri, array $options = [])
+ * @method ResponseInterface head(string|UriInterface $uri, array $options = [])
+ * @method ResponseInterface put(string|UriInterface $uri, array $options = [])
+ * @method ResponseInterface post(string|UriInterface $uri, array $options = [])
+ * @method ResponseInterface patch(string|UriInterface $uri, array $options = [])
+ * @method ResponseInterface delete(string|UriInterface $uri, array $options = [])
+ * @method Promise\PromiseInterface getAsync(string|UriInterface $uri, array $options = [])
+ * @method Promise\PromiseInterface headAsync(string|UriInterface $uri, array $options = [])
+ * @method Promise\PromiseInterface putAsync(string|UriInterface $uri, array $options = [])
+ * @method Promise\PromiseInterface postAsync(string|UriInterface $uri, array $options = [])
+ * @method Promise\PromiseInterface patchAsync(string|UriInterface $uri, array $options = [])
+ * @method Promise\PromiseInterface deleteAsync(string|UriInterface $uri, array $options = [])
+ */
+class Client implements ClientInterface
+{
+    /** @var array Default request options */
+    private $config;
+
+    /**
+     * Clients accept an array of constructor parameters.
+     *
+     * Here's an example of creating a client using a base_uri and an array of
+     * default request options to apply to each request:
+     *
+     *     $client = new Client([
+     *         'base_uri'        => 'http://www.foo.com/1.0/',
+     *         'timeout'         => 0,
+     *         'allow_redirects' => false,
+     *         'proxy'           => '192.168.16.1:10'
+     *     ]);
+     *
+     * Client configuration settings include the following options:
+     *
+     * - handler: (callable) Function that transfers HTTP requests over the
+     *   wire. The function is called with a Psr7\Http\Message\RequestInterface
+     *   and array of transfer options, and must return a
+     *   GuzzleHttp\Promise\PromiseInterface that is fulfilled with a
+     *   Psr7\Http\Message\ResponseInterface on success. "handler" is a
+     *   constructor only option that cannot be overridden in per/request
+     *   options. If no handler is provided, a default handler will be created
+     *   that enables all of the request options below by attaching all of the
+     *   default middleware to the handler.
+     * - base_uri: (string|UriInterface) Base URI of the client that is merged
+     *   into relative URIs. Can be a string or instance of UriInterface.
+     * - **: any request option
+     *
+     * @param array $config Client configuration settings.
+     *
+     * @see \GuzzleHttp\RequestOptions for a list of available request options.
+     */
+    public function __construct(array $config = [])
+    {
+        if (!isset($config['handler'])) {
+            $config['handler'] = HandlerStack::create();
+        } elseif (!is_callable($config['handler'])) {
+            throw new \InvalidArgumentException('handler must be a callable');
+        }
+
+        // Convert the base_uri to a UriInterface
+        if (isset($config['base_uri'])) {
+            $config['base_uri'] = Psr7\uri_for($config['base_uri']);
+        }
+
+        $this->configureDefaults($config);
+    }
+
+    public function __call($method, $args)
+    {
+        if (count($args) < 1) {
+            throw new \InvalidArgumentException('Magic request methods require a URI and optional options array');
+        }
+
+        $uri = $args[0];
+        $opts = isset($args[1]) ? $args[1] : [];
+
+        return substr($method, -5) === 'Async'
+            ? $this->requestAsync(substr($method, 0, -5), $uri, $opts)
+            : $this->request($method, $uri, $opts);
+    }
+
+    public function sendAsync(RequestInterface $request, array $options = [])
+    {
+        // Merge the base URI into the request URI if needed.
+        $options = $this->prepareDefaults($options);
+
+        return $this->transfer(
+            $request->withUri($this->buildUri($request->getUri(), $options), $request->hasHeader('Host')),
+            $options
+        );
+    }
+
+    public function send(RequestInterface $request, array $options = [])
+    {
+        $options[RequestOptions::SYNCHRONOUS] = true;
+        return $this->sendAsync($request, $options)->wait();
+    }
+
+    public function requestAsync($method, $uri = '', array $options = [])
+    {
+        $options = $this->prepareDefaults($options);
+        // Remove request modifying parameter because it can be done up-front.
+        $headers = isset($options['headers']) ? $options['headers'] : [];
+        $body = isset($options['body']) ? $options['body'] : null;
+        $version = isset($options['version']) ? $options['version'] : '1.1';
+        // Merge the URI into the base URI.
+        $uri = $this->buildUri($uri, $options);
+        if (is_array($body)) {
+            $this->invalidBody();
+        }
+        $request = new Psr7\Request($method, $uri, $headers, $body, $version);
+        // Remove the option so that they are not doubly-applied.
+        unset($options['headers'], $options['body'], $options['version']);
+
+        return $this->transfer($request, $options);
+    }
+
+    public function request($method, $uri = '', array $options = [])
+    {
+        $options[RequestOptions::SYNCHRONOUS] = true;
+        return $this->requestAsync($method, $uri, $options)->wait();
+    }
+
+    public function getConfig($option = null)
+    {
+        return $option === null
+            ? $this->config
+            : (isset($this->config[$option]) ? $this->config[$option] : null);
+    }
+
+    private function buildUri($uri, array $config)
+    {
+        // for BC we accept null which would otherwise fail in uri_for
+        $uri = Psr7\uri_for($uri === null ? '' : $uri);
+
+        if (isset($config['base_uri'])) {
+            $uri = Psr7\UriResolver::resolve(Psr7\uri_for($config['base_uri']), $uri);
+        }
+
+        return $uri->getScheme() === '' && $uri->getHost() !== '' ? $uri->withScheme('http') : $uri;
+    }
+
+    /**
+     * Configures the default options for a client.
+     *
+     * @param array $config
+     */
+    private function configureDefaults(array $config)
+    {
+        $defaults = [
+            'allow_redirects' => RedirectMiddleware::$defaultSettings,
+            'http_errors'     => true,
+            'decode_content'  => true,
+            'verify'          => true,
+            'cookies'         => false
+        ];
+
+        // Use the standard Linux HTTP_PROXY and HTTPS_PROXY if set.
+
+        // We can only trust the HTTP_PROXY environment variable in a CLI
+        // process due to the fact that PHP has no reliable mechanism to
+        // get environment variables that start with "HTTP_".
+        if (php_sapi_name() == 'cli' && getenv('HTTP_PROXY')) {
+            $defaults['proxy']['http'] = getenv('HTTP_PROXY');
+        }
+
+        if ($proxy = getenv('HTTPS_PROXY')) {
+            $defaults['proxy']['https'] = $proxy;
+        }
+
+        if ($noProxy = getenv('NO_PROXY')) {
+            $cleanedNoProxy = str_replace(' ', '', $noProxy);
+            $defaults['proxy']['no'] = explode(',', $cleanedNoProxy);
+        }
+
+        $this->config = $config + $defaults;
+
+        if (!empty($config['cookies']) && $config['cookies'] === true) {
+            $this->config['cookies'] = new CookieJar();
+        }
+
+        // Add the default user-agent header.
+        if (!isset($this->config['headers'])) {
+            $this->config['headers'] = ['User-Agent' => default_user_agent()];
+        } else {
+            // Add the User-Agent header if one was not already set.
+            foreach (array_keys($this->config['headers']) as $name) {
+                if (strtolower($name) === 'user-agent') {
+                    return;
+                }
+            }
+            $this->config['headers']['User-Agent'] = default_user_agent();
+        }
+    }
+
+    /**
+     * Merges default options into the array.
+     *
+     * @param array $options Options to modify by reference
+     *
+     * @return array
+     */
+    private function prepareDefaults($options)
+    {
+        $defaults = $this->config;
+
+        if (!empty($defaults['headers'])) {
+            // Default headers are only added if they are not present.
+            $defaults['_conditional'] = $defaults['headers'];
+            unset($defaults['headers']);
+        }
+
+        // Special handling for headers is required as they are added as
+        // conditional headers and as headers passed to a request ctor.
+        if (array_key_exists('headers', $options)) {
+            // Allows default headers to be unset.
+            if ($options['headers'] === null) {
+                $defaults['_conditional'] = null;
+                unset($options['headers']);
+            } elseif (!is_array($options['headers'])) {
+                throw new \InvalidArgumentException('headers must be an array');
+            }
+        }
+
+        // Shallow merge defaults underneath options.
+        $result = $options + $defaults;
+
+        // Remove null values.
+        foreach ($result as $k => $v) {
+            if ($v === null) {
+                unset($result[$k]);
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * Transfers the given request and applies request options.
+     *
+     * The URI of the request is not modified and the request options are used
+     * as-is without merging in default options.
+     *
+     * @param RequestInterface $request
+     * @param array            $options
+     *
+     * @return Promise\PromiseInterface
+     */
+    private function transfer(RequestInterface $request, array $options)
+    {
+        // save_to -> sink
+        if (isset($options['save_to'])) {
+            $options['sink'] = $options['save_to'];
+            unset($options['save_to']);
+        }
+
+        // exceptions -> http_errors
+        if (isset($options['exceptions'])) {
+            $options['http_errors'] = $options['exceptions'];
+            unset($options['exceptions']);
+        }
+
+        $request = $this->applyOptions($request, $options);
+        $handler = $options['handler'];
+
+        try {
+            return Promise\promise_for($handler($request, $options));
+        } catch (\Exception $e) {
+            return Promise\rejection_for($e);
+        }
+    }
+
+    /**
+     * Applies the array of request options to a request.
+     *
+     * @param RequestInterface $request
+     * @param array            $options
+     *
+     * @return RequestInterface
+     */
+    private function applyOptions(RequestInterface $request, array &$options)
+    {
+        $modify = [];
+
+        if (isset($options['form_params'])) {
+            if (isset($options['multipart'])) {
+                throw new \InvalidArgumentException('You cannot use '
+                    . 'form_params and multipart at the same time. Use the '
+                    . 'form_params option if you want to send application/'
+                    . 'x-www-form-urlencoded requests, and the multipart '
+                    . 'option to send multipart/form-data requests.');
+            }
+            $options['body'] = http_build_query($options['form_params'], '', '&');
+            unset($options['form_params']);
+            $options['_conditional']['Content-Type'] = 'application/x-www-form-urlencoded';
+        }
+
+        if (isset($options['multipart'])) {
+            $options['body'] = new Psr7\MultipartStream($options['multipart']);
+            unset($options['multipart']);
+        }
+
+        if (isset($options['json'])) {
+            $options['body'] = \GuzzleHttp\json_encode($options['json']);
+            unset($options['json']);
+            $options['_conditional']['Content-Type'] = 'application/json';
+        }
+
+        if (!empty($options['decode_content'])
+            && $options['decode_content'] !== true
+        ) {
+            $modify['set_headers']['Accept-Encoding'] = $options['decode_content'];
+        }
+
+        if (isset($options['headers'])) {
+            if (isset($modify['set_headers'])) {
+                $modify['set_headers'] = $options['headers'] + $modify['set_headers'];
+            } else {
+                $modify['set_headers'] = $options['headers'];
+            }
+            unset($options['headers']);
+        }
+
+        if (isset($options['body'])) {
+            if (is_array($options['body'])) {
+                $this->invalidBody();
+            }
+            $modify['body'] = Psr7\stream_for($options['body']);
+            unset($options['body']);
+        }
+
+        if (!empty($options['auth']) && is_array($options['auth'])) {
+            $value = $options['auth'];
+            $type = isset($value[2]) ? strtolower($value[2]) : 'basic';
+            switch ($type) {
+                case 'basic':
+                    $modify['set_headers']['Authorization'] = 'Basic '
+                        . base64_encode("$value[0]:$value[1]");
+                    break;
+                case 'digest':
+                    // @todo: Do not rely on curl
+                    $options['curl'][CURLOPT_HTTPAUTH] = CURLAUTH_DIGEST;
+                    $options['curl'][CURLOPT_USERPWD] = "$value[0]:$value[1]";
+                    break;
+                case 'ntlm':
+                    $options['curl'][CURLOPT_HTTPAUTH] = CURLAUTH_NTLM;
+                    $options['curl'][CURLOPT_USERPWD] = "$value[0]:$value[1]";
+                    break;
+            }
+        }
+
+        if (isset($options['query'])) {
+            $value = $options['query'];
+            if (is_array($value)) {
+                $value = http_build_query($value, null, '&', PHP_QUERY_RFC3986);
+            }
+            if (!is_string($value)) {
+                throw new \InvalidArgumentException('query must be a string or array');
+            }
+            $modify['query'] = $value;
+            unset($options['query']);
+        }
+
+        // Ensure that sink is not an invalid value.
+        if (isset($options['sink'])) {
+            // TODO: Add more sink validation?
+            if (is_bool($options['sink'])) {
+                throw new \InvalidArgumentException('sink must not be a boolean');
+            }
+        }
+
+        $request = Psr7\modify_request($request, $modify);
+        if ($request->getBody() instanceof Psr7\MultipartStream) {
+            // Use a multipart/form-data POST if a Content-Type is not set.
+            $options['_conditional']['Content-Type'] = 'multipart/form-data; boundary='
+                . $request->getBody()->getBoundary();
+        }
+
+        // Merge in conditional headers if they are not present.
+        if (isset($options['_conditional'])) {
+            // Build up the changes so it's in a single clone of the message.
+            $modify = [];
+            foreach ($options['_conditional'] as $k => $v) {
+                if (!$request->hasHeader($k)) {
+                    $modify['set_headers'][$k] = $v;
+                }
+            }
+            $request = Psr7\modify_request($request, $modify);
+            // Don't pass this internal value along to middleware/handlers.
+            unset($options['_conditional']);
+        }
+
+        return $request;
+    }
+
+    private function invalidBody()
+    {
+        throw new \InvalidArgumentException('Passing in the "body" request '
+            . 'option as an array to send a POST request has been deprecated. '
+            . 'Please use the "form_params" request option to send a '
+            . 'application/x-www-form-urlencoded request, or the "multipart" '
+            . 'request option to send a multipart/form-data request.');
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/ClientInterface.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/ClientInterface.php
new file mode 100644
index 0000000..5a67b66
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/ClientInterface.php
@@ -0,0 +1,84 @@
+<?php
+namespace GuzzleHttp;
+
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Exception\GuzzleException;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Client interface for sending HTTP requests.
+ */
+interface ClientInterface
+{
+    const VERSION = '6.2.1';
+
+    /**
+     * Send an HTTP request.
+     *
+     * @param RequestInterface $request Request to send
+     * @param array            $options Request options to apply to the given
+     *                                  request and to the transfer.
+     *
+     * @return ResponseInterface
+     * @throws GuzzleException
+     */
+    public function send(RequestInterface $request, array $options = []);
+
+    /**
+     * Asynchronously send an HTTP request.
+     *
+     * @param RequestInterface $request Request to send
+     * @param array            $options Request options to apply to the given
+     *                                  request and to the transfer.
+     *
+     * @return PromiseInterface
+     */
+    public function sendAsync(RequestInterface $request, array $options = []);
+
+    /**
+     * Create and send an HTTP request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well.
+     *
+     * @param string              $method  HTTP method.
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     *
+     * @return ResponseInterface
+     * @throws GuzzleException
+     */
+    public function request($method, $uri, array $options = []);
+
+    /**
+     * Create and send an asynchronous HTTP request.
+     *
+     * Use an absolute path to override the base path of the client, or a
+     * relative path to append to the base path of the client. The URL can
+     * contain the query string as well. Use an array to provide a URL
+     * template and additional variables to use in the URL template expansion.
+     *
+     * @param string              $method  HTTP method
+     * @param string|UriInterface $uri     URI object or string.
+     * @param array               $options Request options to apply.
+     *
+     * @return PromiseInterface
+     */
+    public function requestAsync($method, $uri, array $options = []);
+
+    /**
+     * Get a client configuration option.
+     *
+     * These options include default request options of the client, a "handler"
+     * (if utilized by the concrete client), and a "base_uri" if utilized by
+     * the concrete client.
+     *
+     * @param string|null $option The config option to retrieve.
+     *
+     * @return mixed
+     */
+    public function getConfig($option = null);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/CookieJar.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/CookieJar.php
new file mode 100644
index 0000000..1c17b5a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/CookieJar.php
@@ -0,0 +1,314 @@
+<?php
+namespace GuzzleHttp\Cookie;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Cookie jar that stores cookies as an array
+ */
+class CookieJar implements CookieJarInterface
+{
+    /** @var SetCookie[] Loaded cookie data */
+    private $cookies = [];
+
+    /** @var bool */
+    private $strictMode;
+
+    /**
+     * @param bool $strictMode   Set to true to throw exceptions when invalid
+     *                           cookies are added to the cookie jar.
+     * @param array $cookieArray Array of SetCookie objects or a hash of
+     *                           arrays that can be used with the SetCookie
+     *                           constructor
+     */
+    public function __construct($strictMode = false, $cookieArray = [])
+    {
+        $this->strictMode = $strictMode;
+
+        foreach ($cookieArray as $cookie) {
+            if (!($cookie instanceof SetCookie)) {
+                $cookie = new SetCookie($cookie);
+            }
+            $this->setCookie($cookie);
+        }
+    }
+
+    /**
+     * Create a new Cookie jar from an associative array and domain.
+     *
+     * @param array  $cookies Cookies to create the jar from
+     * @param string $domain  Domain to set the cookies to
+     *
+     * @return self
+     */
+    public static function fromArray(array $cookies, $domain)
+    {
+        $cookieJar = new self();
+        foreach ($cookies as $name => $value) {
+            $cookieJar->setCookie(new SetCookie([
+                'Domain'  => $domain,
+                'Name'    => $name,
+                'Value'   => $value,
+                'Discard' => true
+            ]));
+        }
+
+        return $cookieJar;
+    }
+
+    /**
+     * @deprecated
+     */
+    public static function getCookieValue($value)
+    {
+        return $value;
+    }
+
+    /**
+     * Evaluate if this cookie should be persisted to storage
+     * that survives between requests.
+     *
+     * @param SetCookie $cookie Being evaluated.
+     * @param bool $allowSessionCookies If we should persist session cookies
+     * @return bool
+     */
+    public static function shouldPersist(
+        SetCookie $cookie,
+        $allowSessionCookies = false
+    ) {
+        if ($cookie->getExpires() || $allowSessionCookies) {
+            if (!$cookie->getDiscard()) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Finds and returns the cookie based on the name
+     *
+     * @param string $name cookie name to search for
+     * @return SetCookie|null cookie that was found or null if not found
+     */
+    public function getCookieByName($name)
+    {
+        // don't allow a null name
+        if($name === null) {
+            return null;
+        }
+        foreach($this->cookies as $cookie) {
+            if($cookie->getName() !== null && strcasecmp($cookie->getName(), $name) === 0) {
+                return $cookie;
+            }
+        }
+    }
+
+    public function toArray()
+    {
+        return array_map(function (SetCookie $cookie) {
+            return $cookie->toArray();
+        }, $this->getIterator()->getArrayCopy());
+    }
+
+    public function clear($domain = null, $path = null, $name = null)
+    {
+        if (!$domain) {
+            $this->cookies = [];
+            return;
+        } elseif (!$path) {
+            $this->cookies = array_filter(
+                $this->cookies,
+                function (SetCookie $cookie) use ($path, $domain) {
+                    return !$cookie->matchesDomain($domain);
+                }
+            );
+        } elseif (!$name) {
+            $this->cookies = array_filter(
+                $this->cookies,
+                function (SetCookie $cookie) use ($path, $domain) {
+                    return !($cookie->matchesPath($path) &&
+                        $cookie->matchesDomain($domain));
+                }
+            );
+        } else {
+            $this->cookies = array_filter(
+                $this->cookies,
+                function (SetCookie $cookie) use ($path, $domain, $name) {
+                    return !($cookie->getName() == $name &&
+                        $cookie->matchesPath($path) &&
+                        $cookie->matchesDomain($domain));
+                }
+            );
+        }
+    }
+
+    public function clearSessionCookies()
+    {
+        $this->cookies = array_filter(
+            $this->cookies,
+            function (SetCookie $cookie) {
+                return !$cookie->getDiscard() && $cookie->getExpires();
+            }
+        );
+    }
+
+    public function setCookie(SetCookie $cookie)
+    {
+        // If the name string is empty (but not 0), ignore the set-cookie
+        // string entirely.
+        $name = $cookie->getName();
+        if (!$name && $name !== '0') {
+            return false;
+        }
+
+        // Only allow cookies with set and valid domain, name, value
+        $result = $cookie->validate();
+        if ($result !== true) {
+            if ($this->strictMode) {
+                throw new \RuntimeException('Invalid cookie: ' . $result);
+            } else {
+                $this->removeCookieIfEmpty($cookie);
+                return false;
+            }
+        }
+
+        // Resolve conflicts with previously set cookies
+        foreach ($this->cookies as $i => $c) {
+
+            // Two cookies are identical, when their path, and domain are
+            // identical.
+            if ($c->getPath() != $cookie->getPath() ||
+                $c->getDomain() != $cookie->getDomain() ||
+                $c->getName() != $cookie->getName()
+            ) {
+                continue;
+            }
+
+            // The previously set cookie is a discard cookie and this one is
+            // not so allow the new cookie to be set
+            if (!$cookie->getDiscard() && $c->getDiscard()) {
+                unset($this->cookies[$i]);
+                continue;
+            }
+
+            // If the new cookie's expiration is further into the future, then
+            // replace the old cookie
+            if ($cookie->getExpires() > $c->getExpires()) {
+                unset($this->cookies[$i]);
+                continue;
+            }
+
+            // If the value has changed, we better change it
+            if ($cookie->getValue() !== $c->getValue()) {
+                unset($this->cookies[$i]);
+                continue;
+            }
+
+            // The cookie exists, so no need to continue
+            return false;
+        }
+
+        $this->cookies[] = $cookie;
+
+        return true;
+    }
+
+    public function count()
+    {
+        return count($this->cookies);
+    }
+
+    public function getIterator()
+    {
+        return new \ArrayIterator(array_values($this->cookies));
+    }
+
+    public function extractCookies(
+        RequestInterface $request,
+        ResponseInterface $response
+    ) {
+        if ($cookieHeader = $response->getHeader('Set-Cookie')) {
+            foreach ($cookieHeader as $cookie) {
+                $sc = SetCookie::fromString($cookie);
+                if (!$sc->getDomain()) {
+                    $sc->setDomain($request->getUri()->getHost());
+                }
+                if (0 !== strpos($sc->getPath(), '/')) {
+                    $sc->setPath($this->getCookiePathFromRequest($request));
+                }
+                $this->setCookie($sc);
+            }
+        }
+    }
+
+    /**
+     * Computes cookie path following RFC 6265 section 5.1.4
+     *
+     * @link https://tools.ietf.org/html/rfc6265#section-5.1.4
+     *
+     * @param RequestInterface $request
+     * @return string
+     */
+    private function getCookiePathFromRequest(RequestInterface $request)
+    {
+        $uriPath = $request->getUri()->getPath();
+        if (''  === $uriPath) {
+            return '/';
+        }
+        if (0 !== strpos($uriPath, '/')) {
+            return '/';
+        }
+        if ('/' === $uriPath) {
+            return '/';
+        }
+        if (0 === $lastSlashPos = strrpos($uriPath, '/')) {
+            return '/';
+        }
+
+        return substr($uriPath, 0, $lastSlashPos);
+    }
+
+    public function withCookieHeader(RequestInterface $request)
+    {
+        $values = [];
+        $uri = $request->getUri();
+        $scheme = $uri->getScheme();
+        $host = $uri->getHost();
+        $path = $uri->getPath() ?: '/';
+
+        foreach ($this->cookies as $cookie) {
+            if ($cookie->matchesPath($path) &&
+                $cookie->matchesDomain($host) &&
+                !$cookie->isExpired() &&
+                (!$cookie->getSecure() || $scheme === 'https')
+            ) {
+                $values[] = $cookie->getName() . '='
+                    . $cookie->getValue();
+            }
+        }
+
+        return $values
+            ? $request->withHeader('Cookie', implode('; ', $values))
+            : $request;
+    }
+
+    /**
+     * If a cookie already exists and the server asks to set it again with a
+     * null value, the cookie must be deleted.
+     *
+     * @param SetCookie $cookie
+     */
+    private function removeCookieIfEmpty(SetCookie $cookie)
+    {
+        $cookieValue = $cookie->getValue();
+        if ($cookieValue === null || $cookieValue === '') {
+            $this->clear(
+                $cookie->getDomain(),
+                $cookie->getPath(),
+                $cookie->getName()
+            );
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/CookieJarInterface.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/CookieJarInterface.php
new file mode 100644
index 0000000..2cf298a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/CookieJarInterface.php
@@ -0,0 +1,84 @@
+<?php
+namespace GuzzleHttp\Cookie;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Stores HTTP cookies.
+ *
+ * It extracts cookies from HTTP requests, and returns them in HTTP responses.
+ * CookieJarInterface instances automatically expire contained cookies when
+ * necessary. Subclasses are also responsible for storing and retrieving
+ * cookies from a file, database, etc.
+ *
+ * @link http://docs.python.org/2/library/cookielib.html Inspiration
+ */
+interface CookieJarInterface extends \Countable, \IteratorAggregate
+{
+    /**
+     * Create a request with added cookie headers.
+     *
+     * If no matching cookies are found in the cookie jar, then no Cookie
+     * header is added to the request and the same request is returned.
+     *
+     * @param RequestInterface $request Request object to modify.
+     *
+     * @return RequestInterface returns the modified request.
+     */
+    public function withCookieHeader(RequestInterface $request);
+
+    /**
+     * Extract cookies from an HTTP response and store them in the CookieJar.
+     *
+     * @param RequestInterface  $request  Request that was sent
+     * @param ResponseInterface $response Response that was received
+     */
+    public function extractCookies(
+        RequestInterface $request,
+        ResponseInterface $response
+    );
+
+    /**
+     * Sets a cookie in the cookie jar.
+     *
+     * @param SetCookie $cookie Cookie to set.
+     *
+     * @return bool Returns true on success or false on failure
+     */
+    public function setCookie(SetCookie $cookie);
+
+    /**
+     * Remove cookies currently held in the cookie jar.
+     *
+     * Invoking this method without arguments will empty the whole cookie jar.
+     * If given a $domain argument only cookies belonging to that domain will
+     * be removed. If given a $domain and $path argument, cookies belonging to
+     * the specified path within that domain are removed. If given all three
+     * arguments, then the cookie with the specified name, path and domain is
+     * removed.
+     *
+     * @param string $domain Clears cookies matching a domain
+     * @param string $path   Clears cookies matching a domain and path
+     * @param string $name   Clears cookies matching a domain, path, and name
+     *
+     * @return CookieJarInterface
+     */
+    public function clear($domain = null, $path = null, $name = null);
+
+    /**
+     * Discard all sessions cookies.
+     *
+     * Removes cookies that don't have an expire field or a have a discard
+     * field set to true. To be called when the user agent shuts down according
+     * to RFC 2965.
+     */
+    public function clearSessionCookies();
+
+    /**
+     * Converts the cookie jar to an array.
+     *
+     * @return array
+     */
+    public function toArray();
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/FileCookieJar.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/FileCookieJar.php
new file mode 100644
index 0000000..9887c1d
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/FileCookieJar.php
@@ -0,0 +1,90 @@
+<?php
+namespace GuzzleHttp\Cookie;
+
+/**
+ * Persists non-session cookies using a JSON formatted file
+ */
+class FileCookieJar extends CookieJar
+{
+    /** @var string filename */
+    private $filename;
+
+    /** @var bool Control whether to persist session cookies or not. */
+    private $storeSessionCookies;
+
+    /**
+     * Create a new FileCookieJar object
+     *
+     * @param string $cookieFile        File to store the cookie data
+     * @param bool $storeSessionCookies Set to true to store session cookies
+     *                                  in the cookie jar.
+     *
+     * @throws \RuntimeException if the file cannot be found or created
+     */
+    public function __construct($cookieFile, $storeSessionCookies = false)
+    {
+        $this->filename = $cookieFile;
+        $this->storeSessionCookies = $storeSessionCookies;
+
+        if (file_exists($cookieFile)) {
+            $this->load($cookieFile);
+        }
+    }
+
+    /**
+     * Saves the file when shutting down
+     */
+    public function __destruct()
+    {
+        $this->save($this->filename);
+    }
+
+    /**
+     * Saves the cookies to a file.
+     *
+     * @param string $filename File to save
+     * @throws \RuntimeException if the file cannot be found or created
+     */
+    public function save($filename)
+    {
+        $json = [];
+        foreach ($this as $cookie) {
+            /** @var SetCookie $cookie */
+            if (CookieJar::shouldPersist($cookie, $this->storeSessionCookies)) {
+                $json[] = $cookie->toArray();
+            }
+        }
+
+        $jsonStr = \GuzzleHttp\json_encode($json);
+        if (false === file_put_contents($filename, $jsonStr)) {
+            throw new \RuntimeException("Unable to save file {$filename}");
+        }
+    }
+
+    /**
+     * Load cookies from a JSON formatted file.
+     *
+     * Old cookies are kept unless overwritten by newly loaded ones.
+     *
+     * @param string $filename Cookie file to load.
+     * @throws \RuntimeException if the file cannot be loaded.
+     */
+    public function load($filename)
+    {
+        $json = file_get_contents($filename);
+        if (false === $json) {
+            throw new \RuntimeException("Unable to load file {$filename}");
+        } elseif ($json === '') {
+            return;
+        }
+
+        $data = \GuzzleHttp\json_decode($json, true);
+        if (is_array($data)) {
+            foreach (json_decode($json, true) as $cookie) {
+                $this->setCookie(new SetCookie($cookie));
+            }
+        } elseif (strlen($data)) {
+            throw new \RuntimeException("Invalid cookie file: {$filename}");
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/SessionCookieJar.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/SessionCookieJar.php
new file mode 100644
index 0000000..e4bfafd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/SessionCookieJar.php
@@ -0,0 +1,71 @@
+<?php
+namespace GuzzleHttp\Cookie;
+
+/**
+ * Persists cookies in the client session
+ */
+class SessionCookieJar extends CookieJar
+{
+    /** @var string session key */
+    private $sessionKey;
+    
+    /** @var bool Control whether to persist session cookies or not. */
+    private $storeSessionCookies;
+
+    /**
+     * Create a new SessionCookieJar object
+     *
+     * @param string $sessionKey        Session key name to store the cookie 
+     *                                  data in session
+     * @param bool $storeSessionCookies Set to true to store session cookies
+     *                                  in the cookie jar.
+     */
+    public function __construct($sessionKey, $storeSessionCookies = false)
+    {
+        $this->sessionKey = $sessionKey;
+        $this->storeSessionCookies = $storeSessionCookies;
+        $this->load();
+    }
+
+    /**
+     * Saves cookies to session when shutting down
+     */
+    public function __destruct()
+    {
+        $this->save();
+    }
+
+    /**
+     * Save cookies to the client session
+     */
+    public function save()
+    {
+        $json = [];
+        foreach ($this as $cookie) {
+            /** @var SetCookie $cookie */
+            if (CookieJar::shouldPersist($cookie, $this->storeSessionCookies)) {
+                $json[] = $cookie->toArray();
+            }
+        }
+
+        $_SESSION[$this->sessionKey] = json_encode($json);
+    }
+
+    /**
+     * Load the contents of the client session into the data array
+     */
+    protected function load()
+    {
+        if (!isset($_SESSION[$this->sessionKey])) {
+            return;
+        }
+        $data = json_decode($_SESSION[$this->sessionKey], true);
+        if (is_array($data)) {
+            foreach ($data as $cookie) {
+                $this->setCookie(new SetCookie($cookie));
+            }
+        } elseif (strlen($data)) {
+            throw new \RuntimeException("Invalid cookie data");
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/SetCookie.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/SetCookie.php
new file mode 100644
index 0000000..c911e2a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Cookie/SetCookie.php
@@ -0,0 +1,404 @@
+<?php
+namespace GuzzleHttp\Cookie;
+
+/**
+ * Set-Cookie object
+ */
+class SetCookie
+{
+    /** @var array */
+    private static $defaults = [
+        'Name'     => null,
+        'Value'    => null,
+        'Domain'   => null,
+        'Path'     => '/',
+        'Max-Age'  => null,
+        'Expires'  => null,
+        'Secure'   => false,
+        'Discard'  => false,
+        'HttpOnly' => false
+    ];
+
+    /** @var array Cookie data */
+    private $data;
+
+    /**
+     * Create a new SetCookie object from a string
+     *
+     * @param string $cookie Set-Cookie header string
+     *
+     * @return self
+     */
+    public static function fromString($cookie)
+    {
+        // Create the default return array
+        $data = self::$defaults;
+        // Explode the cookie string using a series of semicolons
+        $pieces = array_filter(array_map('trim', explode(';', $cookie)));
+        // The name of the cookie (first kvp) must include an equal sign.
+        if (empty($pieces) || !strpos($pieces[0], '=')) {
+            return new self($data);
+        }
+
+        // Add the cookie pieces into the parsed data array
+        foreach ($pieces as $part) {
+
+            $cookieParts = explode('=', $part, 2);
+            $key = trim($cookieParts[0]);
+            $value = isset($cookieParts[1])
+                ? trim($cookieParts[1], " \n\r\t\0\x0B")
+                : true;
+
+            // Only check for non-cookies when cookies have been found
+            if (empty($data['Name'])) {
+                $data['Name'] = $key;
+                $data['Value'] = $value;
+            } else {
+                foreach (array_keys(self::$defaults) as $search) {
+                    if (!strcasecmp($search, $key)) {
+                        $data[$search] = $value;
+                        continue 2;
+                    }
+                }
+                $data[$key] = $value;
+            }
+        }
+
+        return new self($data);
+    }
+
+    /**
+     * @param array $data Array of cookie data provided by a Cookie parser
+     */
+    public function __construct(array $data = [])
+    {
+        $this->data = array_replace(self::$defaults, $data);
+        // Extract the Expires value and turn it into a UNIX timestamp if needed
+        if (!$this->getExpires() && $this->getMaxAge()) {
+            // Calculate the Expires date
+            $this->setExpires(time() + $this->getMaxAge());
+        } elseif ($this->getExpires() && !is_numeric($this->getExpires())) {
+            $this->setExpires($this->getExpires());
+        }
+    }
+
+    public function __toString()
+    {
+        $str = $this->data['Name'] . '=' . $this->data['Value'] . '; ';
+        foreach ($this->data as $k => $v) {
+            if ($k !== 'Name' && $k !== 'Value' && $v !== null && $v !== false) {
+                if ($k === 'Expires') {
+                    $str .= 'Expires=' . gmdate('D, d M Y H:i:s \G\M\T', $v) . '; ';
+                } else {
+                    $str .= ($v === true ? $k : "{$k}={$v}") . '; ';
+                }
+            }
+        }
+
+        return rtrim($str, '; ');
+    }
+
+    public function toArray()
+    {
+        return $this->data;
+    }
+
+    /**
+     * Get the cookie name
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->data['Name'];
+    }
+
+    /**
+     * Set the cookie name
+     *
+     * @param string $name Cookie name
+     */
+    public function setName($name)
+    {
+        $this->data['Name'] = $name;
+    }
+
+    /**
+     * Get the cookie value
+     *
+     * @return string
+     */
+    public function getValue()
+    {
+        return $this->data['Value'];
+    }
+
+    /**
+     * Set the cookie value
+     *
+     * @param string $value Cookie value
+     */
+    public function setValue($value)
+    {
+        $this->data['Value'] = $value;
+    }
+
+    /**
+     * Get the domain
+     *
+     * @return string|null
+     */
+    public function getDomain()
+    {
+        return $this->data['Domain'];
+    }
+
+    /**
+     * Set the domain of the cookie
+     *
+     * @param string $domain
+     */
+    public function setDomain($domain)
+    {
+        $this->data['Domain'] = $domain;
+    }
+
+    /**
+     * Get the path
+     *
+     * @return string
+     */
+    public function getPath()
+    {
+        return $this->data['Path'];
+    }
+
+    /**
+     * Set the path of the cookie
+     *
+     * @param string $path Path of the cookie
+     */
+    public function setPath($path)
+    {
+        $this->data['Path'] = $path;
+    }
+
+    /**
+     * Maximum lifetime of the cookie in seconds
+     *
+     * @return int|null
+     */
+    public function getMaxAge()
+    {
+        return $this->data['Max-Age'];
+    }
+
+    /**
+     * Set the max-age of the cookie
+     *
+     * @param int $maxAge Max age of the cookie in seconds
+     */
+    public function setMaxAge($maxAge)
+    {
+        $this->data['Max-Age'] = $maxAge;
+    }
+
+    /**
+     * The UNIX timestamp when the cookie Expires
+     *
+     * @return mixed
+     */
+    public function getExpires()
+    {
+        return $this->data['Expires'];
+    }
+
+    /**
+     * Set the unix timestamp for which the cookie will expire
+     *
+     * @param int $timestamp Unix timestamp
+     */
+    public function setExpires($timestamp)
+    {
+        $this->data['Expires'] = is_numeric($timestamp)
+            ? (int) $timestamp
+            : strtotime($timestamp);
+    }
+
+    /**
+     * Get whether or not this is a secure cookie
+     *
+     * @return null|bool
+     */
+    public function getSecure()
+    {
+        return $this->data['Secure'];
+    }
+
+    /**
+     * Set whether or not the cookie is secure
+     *
+     * @param bool $secure Set to true or false if secure
+     */
+    public function setSecure($secure)
+    {
+        $this->data['Secure'] = $secure;
+    }
+
+    /**
+     * Get whether or not this is a session cookie
+     *
+     * @return null|bool
+     */
+    public function getDiscard()
+    {
+        return $this->data['Discard'];
+    }
+
+    /**
+     * Set whether or not this is a session cookie
+     *
+     * @param bool $discard Set to true or false if this is a session cookie
+     */
+    public function setDiscard($discard)
+    {
+        $this->data['Discard'] = $discard;
+    }
+
+    /**
+     * Get whether or not this is an HTTP only cookie
+     *
+     * @return bool
+     */
+    public function getHttpOnly()
+    {
+        return $this->data['HttpOnly'];
+    }
+
+    /**
+     * Set whether or not this is an HTTP only cookie
+     *
+     * @param bool $httpOnly Set to true or false if this is HTTP only
+     */
+    public function setHttpOnly($httpOnly)
+    {
+        $this->data['HttpOnly'] = $httpOnly;
+    }
+
+    /**
+     * Check if the cookie matches a path value.
+     *
+     * A request-path path-matches a given cookie-path if at least one of
+     * the following conditions holds:
+     *
+     * - The cookie-path and the request-path are identical.
+     * - The cookie-path is a prefix of the request-path, and the last
+     *   character of the cookie-path is %x2F ("/").
+     * - The cookie-path is a prefix of the request-path, and the first
+     *   character of the request-path that is not included in the cookie-
+     *   path is a %x2F ("/") character.
+     *
+     * @param string $requestPath Path to check against
+     *
+     * @return bool
+     */
+    public function matchesPath($requestPath)
+    {
+        $cookiePath = $this->getPath();
+
+        // Match on exact matches or when path is the default empty "/"
+        if ($cookiePath === '/' || $cookiePath == $requestPath) {
+            return true;
+        }
+
+        // Ensure that the cookie-path is a prefix of the request path.
+        if (0 !== strpos($requestPath, $cookiePath)) {
+            return false;
+        }
+
+        // Match if the last character of the cookie-path is "/"
+        if (substr($cookiePath, -1, 1) === '/') {
+            return true;
+        }
+
+        // Match if the first character not included in cookie path is "/"
+        return substr($requestPath, strlen($cookiePath), 1) === '/';
+    }
+
+    /**
+     * Check if the cookie matches a domain value
+     *
+     * @param string $domain Domain to check against
+     *
+     * @return bool
+     */
+    public function matchesDomain($domain)
+    {
+        // Remove the leading '.' as per spec in RFC 6265.
+        // http://tools.ietf.org/html/rfc6265#section-5.2.3
+        $cookieDomain = ltrim($this->getDomain(), '.');
+
+        // Domain not set or exact match.
+        if (!$cookieDomain || !strcasecmp($domain, $cookieDomain)) {
+            return true;
+        }
+
+        // Matching the subdomain according to RFC 6265.
+        // http://tools.ietf.org/html/rfc6265#section-5.1.3
+        if (filter_var($domain, FILTER_VALIDATE_IP)) {
+            return false;
+        }
+
+        return (bool) preg_match('/\.' . preg_quote($cookieDomain) . '$/', $domain);
+    }
+
+    /**
+     * Check if the cookie is expired
+     *
+     * @return bool
+     */
+    public function isExpired()
+    {
+        return $this->getExpires() && time() > $this->getExpires();
+    }
+
+    /**
+     * Check if the cookie is valid according to RFC 6265
+     *
+     * @return bool|string Returns true if valid or an error message if invalid
+     */
+    public function validate()
+    {
+        // Names must not be empty, but can be 0
+        $name = $this->getName();
+        if (empty($name) && !is_numeric($name)) {
+            return 'The cookie name must not be empty';
+        }
+
+        // Check if any of the invalid characters are present in the cookie name
+        if (preg_match(
+            '/[\x00-\x20\x22\x28-\x29\x2c\x2f\x3a-\x40\x5c\x7b\x7d\x7f]/',
+            $name)
+        ) {
+            return 'Cookie name must not contain invalid characters: ASCII '
+                . 'Control characters (0-31;127), space, tab and the '
+                . 'following characters: ()<>@,;:\"/?={}';
+        }
+
+        // Value must not be empty, but can be 0
+        $value = $this->getValue();
+        if (empty($value) && !is_numeric($value)) {
+            return 'The cookie value must not be empty';
+        }
+
+        // Domains must not be empty, but can be 0
+        // A "0" is not a valid internet domain, but may be used as server name
+        // in a private network.
+        $domain = $this->getDomain();
+        if (empty($domain) && !is_numeric($domain)) {
+            return 'The cookie domain must not be empty';
+        }
+
+        return true;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/BadResponseException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/BadResponseException.php
new file mode 100644
index 0000000..427d896
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/BadResponseException.php
@@ -0,0 +1,27 @@
+<?php
+namespace GuzzleHttp\Exception;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Exception when an HTTP error occurs (4xx or 5xx error)
+ */
+class BadResponseException extends RequestException
+{
+    public function __construct(
+        $message,
+        RequestInterface $request,
+        ResponseInterface $response = null,
+        \Exception $previous = null,
+        array $handlerContext = []
+    ) {
+        if (null === $response) {
+            @trigger_error(
+                'Instantiating the ' . __CLASS__ . ' class without a Response is deprecated since version 6.3 and will be removed in 7.0.',
+                E_USER_DEPRECATED
+            );
+        }
+        parent::__construct($message, $request, $response, $previous, $handlerContext);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/ClientException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/ClientException.php
new file mode 100644
index 0000000..f95c09f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/ClientException.php
@@ -0,0 +1,7 @@
+<?php
+namespace GuzzleHttp\Exception;
+
+/**
+ * Exception when a client error is encountered (4xx codes)
+ */
+class ClientException extends BadResponseException {}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/ConnectException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/ConnectException.php
new file mode 100644
index 0000000..d33b0cc
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/ConnectException.php
@@ -0,0 +1,37 @@
+<?php
+namespace GuzzleHttp\Exception;
+
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Exception thrown when a connection cannot be established.
+ *
+ * Note that no response is present for a ConnectException
+ */
+class ConnectException extends RequestException
+{
+    public function __construct(
+        $message,
+        RequestInterface $request,
+        \Exception $previous = null,
+        array $handlerContext = []
+    ) {
+        parent::__construct($message, $request, null, $previous, $handlerContext);
+    }
+
+    /**
+     * @return null
+     */
+    public function getResponse()
+    {
+        return null;
+    }
+
+    /**
+     * @return bool
+     */
+    public function hasResponse()
+    {
+        return false;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/GuzzleException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/GuzzleException.php
new file mode 100644
index 0000000..c82998e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/GuzzleException.php
@@ -0,0 +1,4 @@
+<?php
+namespace GuzzleHttp\Exception;
+
+interface GuzzleException {}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php
new file mode 100644
index 0000000..39de327
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/RequestException.php
@@ -0,0 +1,217 @@
+<?php
+namespace GuzzleHttp\Exception;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use GuzzleHttp\Promise\PromiseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * HTTP Request exception
+ */
+class RequestException extends TransferException
+{
+    /** @var RequestInterface */
+    private $request;
+
+    /** @var ResponseInterface */
+    private $response;
+
+    /** @var array */
+    private $handlerContext;
+
+    public function __construct(
+        $message,
+        RequestInterface $request,
+        ResponseInterface $response = null,
+        \Exception $previous = null,
+        array $handlerContext = []
+    ) {
+        // Set the code of the exception if the response is set and not future.
+        $code = $response && !($response instanceof PromiseInterface)
+            ? $response->getStatusCode()
+            : 0;
+        parent::__construct($message, $code, $previous);
+        $this->request = $request;
+        $this->response = $response;
+        $this->handlerContext = $handlerContext;
+    }
+
+    /**
+     * Wrap non-RequestExceptions with a RequestException
+     *
+     * @param RequestInterface $request
+     * @param \Exception       $e
+     *
+     * @return RequestException
+     */
+    public static function wrapException(RequestInterface $request, \Exception $e)
+    {
+        return $e instanceof RequestException
+            ? $e
+            : new RequestException($e->getMessage(), $request, null, $e);
+    }
+
+    /**
+     * Factory method to create a new exception with a normalized error message
+     *
+     * @param RequestInterface  $request  Request
+     * @param ResponseInterface $response Response received
+     * @param \Exception        $previous Previous exception
+     * @param array             $ctx      Optional handler context.
+     *
+     * @return self
+     */
+    public static function create(
+        RequestInterface $request,
+        ResponseInterface $response = null,
+        \Exception $previous = null,
+        array $ctx = []
+    ) {
+        if (!$response) {
+            return new self(
+                'Error completing request',
+                $request,
+                null,
+                $previous,
+                $ctx
+            );
+        }
+
+        $level = (int) floor($response->getStatusCode() / 100);
+        if ($level === 4) {
+            $label = 'Client error';
+            $className = ClientException::class;
+        } elseif ($level === 5) {
+            $label = 'Server error';
+            $className = ServerException::class;
+        } else {
+            $label = 'Unsuccessful request';
+            $className = __CLASS__;
+        }
+
+        $uri = $request->getUri();
+        $uri = static::obfuscateUri($uri);
+
+        // Client Error: `GET /` resulted in a `404 Not Found` response:
+        // <html> ... (truncated)
+        $message = sprintf(
+            '%s: `%s %s` resulted in a `%s %s` response',
+            $label,
+            $request->getMethod(),
+            $uri,
+            $response->getStatusCode(),
+            $response->getReasonPhrase()
+        );
+
+        $summary = static::getResponseBodySummary($response);
+
+        if ($summary !== null) {
+            $message .= ":\n{$summary}\n";
+        }
+
+        return new $className($message, $request, $response, $previous, $ctx);
+    }
+
+    /**
+     * Get a short summary of the response
+     *
+     * Will return `null` if the response is not printable.
+     *
+     * @param ResponseInterface $response
+     *
+     * @return string|null
+     */
+    public static function getResponseBodySummary(ResponseInterface $response)
+    {
+        $body = $response->getBody();
+
+        if (!$body->isSeekable()) {
+            return null;
+        }
+
+        $size = $body->getSize();
+
+        if ($size === 0) {
+            return null;
+        }
+
+        $summary = $body->read(120);
+        $body->rewind();
+
+        if ($size > 120) {
+            $summary .= ' (truncated...)';
+        }
+
+        // Matches any printable character, including unicode characters:
+        // letters, marks, numbers, punctuation, spacing, and separators.
+        if (preg_match('/[^\pL\pM\pN\pP\pS\pZ\n\r\t]/', $summary)) {
+            return null;
+        }
+
+        return $summary;
+    }
+
+    /**
+     * Obfuscates URI if there is an username and a password present
+     *
+     * @param UriInterface $uri
+     *
+     * @return UriInterface
+     */
+    private static function obfuscateUri($uri)
+    {
+        $userInfo = $uri->getUserInfo();
+
+        if (false !== ($pos = strpos($userInfo, ':'))) {
+            return $uri->withUserInfo(substr($userInfo, 0, $pos), '***');
+        }
+
+        return $uri;
+    }
+
+    /**
+     * Get the request that caused the exception
+     *
+     * @return RequestInterface
+     */
+    public function getRequest()
+    {
+        return $this->request;
+    }
+
+    /**
+     * Get the associated response
+     *
+     * @return ResponseInterface|null
+     */
+    public function getResponse()
+    {
+        return $this->response;
+    }
+
+    /**
+     * Check if a response was received
+     *
+     * @return bool
+     */
+    public function hasResponse()
+    {
+        return $this->response !== null;
+    }
+
+    /**
+     * Get contextual information about the error from the underlying handler.
+     *
+     * The contents of this array will vary depending on which handler you are
+     * using. It may also be just an empty array. Relying on this data will
+     * couple you to a specific handler, but can give more debug information
+     * when needed.
+     *
+     * @return array
+     */
+    public function getHandlerContext()
+    {
+        return $this->handlerContext;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/SeekException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/SeekException.php
new file mode 100644
index 0000000..a77c289
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/SeekException.php
@@ -0,0 +1,27 @@
+<?php
+namespace GuzzleHttp\Exception;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Exception thrown when a seek fails on a stream.
+ */
+class SeekException extends \RuntimeException implements GuzzleException
+{
+    private $stream;
+
+    public function __construct(StreamInterface $stream, $pos = 0, $msg = '')
+    {
+        $this->stream = $stream;
+        $msg = $msg ?: 'Could not seek the stream to position ' . $pos;
+        parent::__construct($msg);
+    }
+
+    /**
+     * @return StreamInterface
+     */
+    public function getStream()
+    {
+        return $this->stream;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/ServerException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/ServerException.php
new file mode 100644
index 0000000..7cdd340
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/ServerException.php
@@ -0,0 +1,7 @@
+<?php
+namespace GuzzleHttp\Exception;
+
+/**
+ * Exception when a server error is encountered (5xx codes)
+ */
+class ServerException extends BadResponseException {}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/TooManyRedirectsException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/TooManyRedirectsException.php
new file mode 100644
index 0000000..b60a967
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/TooManyRedirectsException.php
@@ -0,0 +1,4 @@
+<?php
+namespace GuzzleHttp\Exception;
+
+class TooManyRedirectsException extends RequestException {}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/TransferException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/TransferException.php
new file mode 100644
index 0000000..b92071c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Exception/TransferException.php
@@ -0,0 +1,4 @@
+<?php
+namespace GuzzleHttp\Exception;
+
+class TransferException extends \RuntimeException implements GuzzleException {}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php
new file mode 100644
index 0000000..49808e5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php
@@ -0,0 +1,559 @@
+<?php
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Exception\ConnectException;
+use GuzzleHttp\Promise\FulfilledPromise;
+use GuzzleHttp\Promise\RejectedPromise;
+use GuzzleHttp\Psr7;
+use GuzzleHttp\Psr7\LazyOpenStream;
+use GuzzleHttp\TransferStats;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Creates curl resources from a request
+ */
+class CurlFactory implements CurlFactoryInterface
+{
+    /** @var array */
+    private $handles = [];
+
+    /** @var int Total number of idle handles to keep in cache */
+    private $maxHandles;
+
+    /**
+     * @param int $maxHandles Maximum number of idle handles.
+     */
+    public function __construct($maxHandles)
+    {
+        $this->maxHandles = $maxHandles;
+    }
+
+    public function create(RequestInterface $request, array $options)
+    {
+        if (isset($options['curl']['body_as_string'])) {
+            $options['_body_as_string'] = $options['curl']['body_as_string'];
+            unset($options['curl']['body_as_string']);
+        }
+
+        $easy = new EasyHandle;
+        $easy->request = $request;
+        $easy->options = $options;
+        $conf = $this->getDefaultConf($easy);
+        $this->applyMethod($easy, $conf);
+        $this->applyHandlerOptions($easy, $conf);
+        $this->applyHeaders($easy, $conf);
+        unset($conf['_headers']);
+
+        // Add handler options from the request configuration options
+        if (isset($options['curl'])) {
+            $conf = array_replace($conf, $options['curl']);
+        }
+
+        $conf[CURLOPT_HEADERFUNCTION] = $this->createHeaderFn($easy);
+        $easy->handle = $this->handles
+            ? array_pop($this->handles)
+            : curl_init();
+        curl_setopt_array($easy->handle, $conf);
+
+        return $easy;
+    }
+
+    public function release(EasyHandle $easy)
+    {
+        $resource = $easy->handle;
+        unset($easy->handle);
+
+        if (count($this->handles) >= $this->maxHandles) {
+            curl_close($resource);
+        } else {
+            // Remove all callback functions as they can hold onto references
+            // and are not cleaned up by curl_reset. Using curl_setopt_array
+            // does not work for some reason, so removing each one
+            // individually.
+            curl_setopt($resource, CURLOPT_HEADERFUNCTION, null);
+            curl_setopt($resource, CURLOPT_READFUNCTION, null);
+            curl_setopt($resource, CURLOPT_WRITEFUNCTION, null);
+            curl_setopt($resource, CURLOPT_PROGRESSFUNCTION, null);
+            curl_reset($resource);
+            $this->handles[] = $resource;
+        }
+    }
+
+    /**
+     * Completes a cURL transaction, either returning a response promise or a
+     * rejected promise.
+     *
+     * @param callable             $handler
+     * @param EasyHandle           $easy
+     * @param CurlFactoryInterface $factory Dictates how the handle is released
+     *
+     * @return \GuzzleHttp\Promise\PromiseInterface
+     */
+    public static function finish(
+        callable $handler,
+        EasyHandle $easy,
+        CurlFactoryInterface $factory
+    ) {
+        if (isset($easy->options['on_stats'])) {
+            self::invokeStats($easy);
+        }
+
+        if (!$easy->response || $easy->errno) {
+            return self::finishError($handler, $easy, $factory);
+        }
+
+        // Return the response if it is present and there is no error.
+        $factory->release($easy);
+
+        // Rewind the body of the response if possible.
+        $body = $easy->response->getBody();
+        if ($body->isSeekable()) {
+            $body->rewind();
+        }
+
+        return new FulfilledPromise($easy->response);
+    }
+
+    private static function invokeStats(EasyHandle $easy)
+    {
+        $curlStats = curl_getinfo($easy->handle);
+        $stats = new TransferStats(
+            $easy->request,
+            $easy->response,
+            $curlStats['total_time'],
+            $easy->errno,
+            $curlStats
+        );
+        call_user_func($easy->options['on_stats'], $stats);
+    }
+
+    private static function finishError(
+        callable $handler,
+        EasyHandle $easy,
+        CurlFactoryInterface $factory
+    ) {
+        // Get error information and release the handle to the factory.
+        $ctx = [
+            'errno' => $easy->errno,
+            'error' => curl_error($easy->handle),
+        ] + curl_getinfo($easy->handle);
+        $factory->release($easy);
+
+        // Retry when nothing is present or when curl failed to rewind.
+        if (empty($easy->options['_err_message'])
+            && (!$easy->errno || $easy->errno == 65)
+        ) {
+            return self::retryFailedRewind($handler, $easy, $ctx);
+        }
+
+        return self::createRejection($easy, $ctx);
+    }
+
+    private static function createRejection(EasyHandle $easy, array $ctx)
+    {
+        static $connectionErrors = [
+            CURLE_OPERATION_TIMEOUTED  => true,
+            CURLE_COULDNT_RESOLVE_HOST => true,
+            CURLE_COULDNT_CONNECT      => true,
+            CURLE_SSL_CONNECT_ERROR    => true,
+            CURLE_GOT_NOTHING          => true,
+        ];
+
+        // If an exception was encountered during the onHeaders event, then
+        // return a rejected promise that wraps that exception.
+        if ($easy->onHeadersException) {
+            return \GuzzleHttp\Promise\rejection_for(
+                new RequestException(
+                    'An error was encountered during the on_headers event',
+                    $easy->request,
+                    $easy->response,
+                    $easy->onHeadersException,
+                    $ctx
+                )
+            );
+        }
+
+        $message = sprintf(
+            'cURL error %s: %s (%s)',
+            $ctx['errno'],
+            $ctx['error'],
+            'see http://curl.haxx.se/libcurl/c/libcurl-errors.html'
+        );
+
+        // Create a connection exception if it was a specific error code.
+        $error = isset($connectionErrors[$easy->errno])
+            ? new ConnectException($message, $easy->request, null, $ctx)
+            : new RequestException($message, $easy->request, $easy->response, null, $ctx);
+
+        return \GuzzleHttp\Promise\rejection_for($error);
+    }
+
+    private function getDefaultConf(EasyHandle $easy)
+    {
+        $conf = [
+            '_headers'             => $easy->request->getHeaders(),
+            CURLOPT_CUSTOMREQUEST  => $easy->request->getMethod(),
+            CURLOPT_URL            => (string) $easy->request->getUri()->withFragment(''),
+            CURLOPT_RETURNTRANSFER => false,
+            CURLOPT_HEADER         => false,
+            CURLOPT_CONNECTTIMEOUT => 150,
+        ];
+
+        if (defined('CURLOPT_PROTOCOLS')) {
+            $conf[CURLOPT_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+        }
+
+        $version = $easy->request->getProtocolVersion();
+        if ($version == 1.1) {
+            $conf[CURLOPT_HTTP_VERSION] = CURL_HTTP_VERSION_1_1;
+        } elseif ($version == 2.0) {
+            $conf[CURLOPT_HTTP_VERSION] = CURL_HTTP_VERSION_2_0;
+        } else {
+            $conf[CURLOPT_HTTP_VERSION] = CURL_HTTP_VERSION_1_0;
+        }
+
+        return $conf;
+    }
+
+    private function applyMethod(EasyHandle $easy, array &$conf)
+    {
+        $body = $easy->request->getBody();
+        $size = $body->getSize();
+
+        if ($size === null || $size > 0) {
+            $this->applyBody($easy->request, $easy->options, $conf);
+            return;
+        }
+
+        $method = $easy->request->getMethod();
+        if ($method === 'PUT' || $method === 'POST') {
+            // See http://tools.ietf.org/html/rfc7230#section-3.3.2
+            if (!$easy->request->hasHeader('Content-Length')) {
+                $conf[CURLOPT_HTTPHEADER][] = 'Content-Length: 0';
+            }
+        } elseif ($method === 'HEAD') {
+            $conf[CURLOPT_NOBODY] = true;
+            unset(
+                $conf[CURLOPT_WRITEFUNCTION],
+                $conf[CURLOPT_READFUNCTION],
+                $conf[CURLOPT_FILE],
+                $conf[CURLOPT_INFILE]
+            );
+        }
+    }
+
+    private function applyBody(RequestInterface $request, array $options, array &$conf)
+    {
+        $size = $request->hasHeader('Content-Length')
+            ? (int) $request->getHeaderLine('Content-Length')
+            : null;
+
+        // Send the body as a string if the size is less than 1MB OR if the
+        // [curl][body_as_string] request value is set.
+        if (($size !== null && $size < 1000000) ||
+            !empty($options['_body_as_string'])
+        ) {
+            $conf[CURLOPT_POSTFIELDS] = (string) $request->getBody();
+            // Don't duplicate the Content-Length header
+            $this->removeHeader('Content-Length', $conf);
+            $this->removeHeader('Transfer-Encoding', $conf);
+        } else {
+            $conf[CURLOPT_UPLOAD] = true;
+            if ($size !== null) {
+                $conf[CURLOPT_INFILESIZE] = $size;
+                $this->removeHeader('Content-Length', $conf);
+            }
+            $body = $request->getBody();
+            if ($body->isSeekable()) {
+                $body->rewind();
+            }
+            $conf[CURLOPT_READFUNCTION] = function ($ch, $fd, $length) use ($body) {
+                return $body->read($length);
+            };
+        }
+
+        // If the Expect header is not present, prevent curl from adding it
+        if (!$request->hasHeader('Expect')) {
+            $conf[CURLOPT_HTTPHEADER][] = 'Expect:';
+        }
+
+        // cURL sometimes adds a content-type by default. Prevent this.
+        if (!$request->hasHeader('Content-Type')) {
+            $conf[CURLOPT_HTTPHEADER][] = 'Content-Type:';
+        }
+    }
+
+    private function applyHeaders(EasyHandle $easy, array &$conf)
+    {
+        foreach ($conf['_headers'] as $name => $values) {
+            foreach ($values as $value) {
+                $conf[CURLOPT_HTTPHEADER][] = "$name: $value";
+            }
+        }
+
+        // Remove the Accept header if one was not set
+        if (!$easy->request->hasHeader('Accept')) {
+            $conf[CURLOPT_HTTPHEADER][] = 'Accept:';
+        }
+    }
+
+    /**
+     * Remove a header from the options array.
+     *
+     * @param string $name    Case-insensitive header to remove
+     * @param array  $options Array of options to modify
+     */
+    private function removeHeader($name, array &$options)
+    {
+        foreach (array_keys($options['_headers']) as $key) {
+            if (!strcasecmp($key, $name)) {
+                unset($options['_headers'][$key]);
+                return;
+            }
+        }
+    }
+
+    private function applyHandlerOptions(EasyHandle $easy, array &$conf)
+    {
+        $options = $easy->options;
+        if (isset($options['verify'])) {
+            if ($options['verify'] === false) {
+                unset($conf[CURLOPT_CAINFO]);
+                $conf[CURLOPT_SSL_VERIFYHOST] = 0;
+                $conf[CURLOPT_SSL_VERIFYPEER] = false;
+            } else {
+                $conf[CURLOPT_SSL_VERIFYHOST] = 2;
+                $conf[CURLOPT_SSL_VERIFYPEER] = true;
+                if (is_string($options['verify'])) {
+                    // Throw an error if the file/folder/link path is not valid or doesn't exist.
+                    if (!file_exists($options['verify'])) {
+                        throw new \InvalidArgumentException(
+                            "SSL CA bundle not found: {$options['verify']}"
+                        );
+                    }
+                    // If it's a directory or a link to a directory use CURLOPT_CAPATH.
+                    // If not, it's probably a file, or a link to a file, so use CURLOPT_CAINFO.
+                    if (is_dir($options['verify']) ||
+                        (is_link($options['verify']) && is_dir(readlink($options['verify'])))) {
+                        $conf[CURLOPT_CAPATH] = $options['verify'];
+                    } else {
+                        $conf[CURLOPT_CAINFO] = $options['verify'];
+                    }
+                }
+            }
+        }
+
+        if (!empty($options['decode_content'])) {
+            $accept = $easy->request->getHeaderLine('Accept-Encoding');
+            if ($accept) {
+                $conf[CURLOPT_ENCODING] = $accept;
+            } else {
+                $conf[CURLOPT_ENCODING] = '';
+                // Don't let curl send the header over the wire
+                $conf[CURLOPT_HTTPHEADER][] = 'Accept-Encoding:';
+            }
+        }
+
+        if (isset($options['sink'])) {
+            $sink = $options['sink'];
+            if (!is_string($sink)) {
+                $sink = \GuzzleHttp\Psr7\stream_for($sink);
+            } elseif (!is_dir(dirname($sink))) {
+                // Ensure that the directory exists before failing in curl.
+                throw new \RuntimeException(sprintf(
+                    'Directory %s does not exist for sink value of %s',
+                    dirname($sink),
+                    $sink
+                ));
+            } else {
+                $sink = new LazyOpenStream($sink, 'w+');
+            }
+            $easy->sink = $sink;
+            $conf[CURLOPT_WRITEFUNCTION] = function ($ch, $write) use ($sink) {
+                return $sink->write($write);
+            };
+        } else {
+            // Use a default temp stream if no sink was set.
+            $conf[CURLOPT_FILE] = fopen('php://temp', 'w+');
+            $easy->sink = Psr7\stream_for($conf[CURLOPT_FILE]);
+        }
+        $timeoutRequiresNoSignal = false;
+        if (isset($options['timeout'])) {
+            $timeoutRequiresNoSignal |= $options['timeout'] < 1;
+            $conf[CURLOPT_TIMEOUT_MS] = $options['timeout'] * 1000;
+        }
+
+        // CURL default value is CURL_IPRESOLVE_WHATEVER
+        if (isset($options['force_ip_resolve'])) {
+            if ('v4' === $options['force_ip_resolve']) {
+                $conf[CURLOPT_IPRESOLVE] = CURL_IPRESOLVE_V4;
+            } else if ('v6' === $options['force_ip_resolve']) {
+                $conf[CURLOPT_IPRESOLVE] = CURL_IPRESOLVE_V6;
+            }
+        }
+
+        if (isset($options['connect_timeout'])) {
+            $timeoutRequiresNoSignal |= $options['connect_timeout'] < 1;
+            $conf[CURLOPT_CONNECTTIMEOUT_MS] = $options['connect_timeout'] * 1000;
+        }
+
+        if ($timeoutRequiresNoSignal && strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN') {
+            $conf[CURLOPT_NOSIGNAL] = true;
+        }
+
+        if (isset($options['proxy'])) {
+            if (!is_array($options['proxy'])) {
+                $conf[CURLOPT_PROXY] = $options['proxy'];
+            } else {
+                $scheme = $easy->request->getUri()->getScheme();
+                if (isset($options['proxy'][$scheme])) {
+                    $host = $easy->request->getUri()->getHost();
+                    if (!isset($options['proxy']['no']) ||
+                        !\GuzzleHttp\is_host_in_noproxy($host, $options['proxy']['no'])
+                    ) {
+                        $conf[CURLOPT_PROXY] = $options['proxy'][$scheme];
+                    }
+                }
+            }
+        }
+
+        if (isset($options['cert'])) {
+            $cert = $options['cert'];
+            if (is_array($cert)) {
+                $conf[CURLOPT_SSLCERTPASSWD] = $cert[1];
+                $cert = $cert[0];
+            }
+            if (!file_exists($cert)) {
+                throw new \InvalidArgumentException(
+                    "SSL certificate not found: {$cert}"
+                );
+            }
+            $conf[CURLOPT_SSLCERT] = $cert;
+        }
+
+        if (isset($options['ssl_key'])) {
+            $sslKey = $options['ssl_key'];
+            if (is_array($sslKey)) {
+                $conf[CURLOPT_SSLKEYPASSWD] = $sslKey[1];
+                $sslKey = $sslKey[0];
+            }
+            if (!file_exists($sslKey)) {
+                throw new \InvalidArgumentException(
+                    "SSL private key not found: {$sslKey}"
+                );
+            }
+            $conf[CURLOPT_SSLKEY] = $sslKey;
+        }
+
+        if (isset($options['progress'])) {
+            $progress = $options['progress'];
+            if (!is_callable($progress)) {
+                throw new \InvalidArgumentException(
+                    'progress client option must be callable'
+                );
+            }
+            $conf[CURLOPT_NOPROGRESS] = false;
+            $conf[CURLOPT_PROGRESSFUNCTION] = function () use ($progress) {
+                $args = func_get_args();
+                // PHP 5.5 pushed the handle onto the start of the args
+                if (is_resource($args[0])) {
+                    array_shift($args);
+                }
+                call_user_func_array($progress, $args);
+            };
+        }
+
+        if (!empty($options['debug'])) {
+            $conf[CURLOPT_STDERR] = \GuzzleHttp\debug_resource($options['debug']);
+            $conf[CURLOPT_VERBOSE] = true;
+        }
+    }
+
+    /**
+     * This function ensures that a response was set on a transaction. If one
+     * was not set, then the request is retried if possible. This error
+     * typically means you are sending a payload, curl encountered a
+     * "Connection died, retrying a fresh connect" error, tried to rewind the
+     * stream, and then encountered a "necessary data rewind wasn't possible"
+     * error, causing the request to be sent through curl_multi_info_read()
+     * without an error status.
+     */
+    private static function retryFailedRewind(
+        callable $handler,
+        EasyHandle $easy,
+        array $ctx
+    ) {
+        try {
+            // Only rewind if the body has been read from.
+            $body = $easy->request->getBody();
+            if ($body->tell() > 0) {
+                $body->rewind();
+            }
+        } catch (\RuntimeException $e) {
+            $ctx['error'] = 'The connection unexpectedly failed without '
+                . 'providing an error. The request would have been retried, '
+                . 'but attempting to rewind the request body failed. '
+                . 'Exception: ' . $e;
+            return self::createRejection($easy, $ctx);
+        }
+
+        // Retry no more than 3 times before giving up.
+        if (!isset($easy->options['_curl_retries'])) {
+            $easy->options['_curl_retries'] = 1;
+        } elseif ($easy->options['_curl_retries'] == 2) {
+            $ctx['error'] = 'The cURL request was retried 3 times '
+                . 'and did not succeed. The most likely reason for the failure '
+                . 'is that cURL was unable to rewind the body of the request '
+                . 'and subsequent retries resulted in the same error. Turn on '
+                . 'the debug option to see what went wrong. See '
+                . 'https://bugs.php.net/bug.php?id=47204 for more information.';
+            return self::createRejection($easy, $ctx);
+        } else {
+            $easy->options['_curl_retries']++;
+        }
+
+        return $handler($easy->request, $easy->options);
+    }
+
+    private function createHeaderFn(EasyHandle $easy)
+    {
+        if (isset($easy->options['on_headers'])) {
+            $onHeaders = $easy->options['on_headers'];
+
+            if (!is_callable($onHeaders)) {
+                throw new \InvalidArgumentException('on_headers must be callable');
+            }
+        } else {
+            $onHeaders = null;
+        }
+
+        return function ($ch, $h) use (
+            $onHeaders,
+            $easy,
+            &$startingResponse
+        ) {
+            $value = trim($h);
+            if ($value === '') {
+                $startingResponse = true;
+                $easy->createResponse();
+                if ($onHeaders !== null) {
+                    try {
+                        $onHeaders($easy->response);
+                    } catch (\Exception $e) {
+                        // Associate the exception with the handle and trigger
+                        // a curl header write error by returning 0.
+                        $easy->onHeadersException = $e;
+                        return -1;
+                    }
+                }
+            } elseif ($startingResponse) {
+                $startingResponse = false;
+                $easy->headers = [$value];
+            } else {
+                $easy->headers[] = $value;
+            }
+            return strlen($h);
+        };
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlFactoryInterface.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlFactoryInterface.php
new file mode 100644
index 0000000..b0fc236
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlFactoryInterface.php
@@ -0,0 +1,27 @@
+<?php
+namespace GuzzleHttp\Handler;
+
+use Psr\Http\Message\RequestInterface;
+
+interface CurlFactoryInterface
+{
+    /**
+     * Creates a cURL handle resource.
+     *
+     * @param RequestInterface $request Request
+     * @param array            $options Transfer options
+     *
+     * @return EasyHandle
+     * @throws \RuntimeException when an option cannot be applied
+     */
+    public function create(RequestInterface $request, array $options);
+
+    /**
+     * Release an easy handle, allowing it to be reused or closed.
+     *
+     * This function must call unset on the easy handle's "handle" property.
+     *
+     * @param EasyHandle $easy
+     */
+    public function release(EasyHandle $easy);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlHandler.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlHandler.php
new file mode 100644
index 0000000..43577da
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlHandler.php
@@ -0,0 +1,45 @@
+<?php
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Psr7;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * HTTP handler that uses cURL easy handles as a transport layer.
+ *
+ * When using the CurlHandler, custom curl options can be specified as an
+ * associative array of curl option constants mapping to values in the
+ * **curl** key of the "client" key of the request.
+ */
+class CurlHandler
+{
+    /** @var CurlFactoryInterface */
+    private $factory;
+
+    /**
+     * Accepts an associative array of options:
+     *
+     * - factory: Optional curl factory used to create cURL handles.
+     *
+     * @param array $options Array of options to use with the handler
+     */
+    public function __construct(array $options = [])
+    {
+        $this->factory = isset($options['handle_factory'])
+            ? $options['handle_factory']
+            : new CurlFactory(3);
+    }
+
+    public function __invoke(RequestInterface $request, array $options)
+    {
+        if (isset($options['delay'])) {
+            usleep($options['delay'] * 1000);
+        }
+
+        $easy = $this->factory->create($request, $options);
+        curl_exec($easy->handle);
+        $easy->errno = curl_errno($easy->handle);
+
+        return CurlFactory::finish($this, $easy, $this->factory);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php
new file mode 100644
index 0000000..945d06e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/CurlMultiHandler.php
@@ -0,0 +1,197 @@
+<?php
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Promise as P;
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Psr7;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Returns an asynchronous response using curl_multi_* functions.
+ *
+ * When using the CurlMultiHandler, custom curl options can be specified as an
+ * associative array of curl option constants mapping to values in the
+ * **curl** key of the provided request options.
+ *
+ * @property resource $_mh Internal use only. Lazy loaded multi-handle.
+ */
+class CurlMultiHandler
+{
+    /** @var CurlFactoryInterface */
+    private $factory;
+    private $selectTimeout;
+    private $active;
+    private $handles = [];
+    private $delays = [];
+
+    /**
+     * This handler accepts the following options:
+     *
+     * - handle_factory: An optional factory  used to create curl handles
+     * - select_timeout: Optional timeout (in seconds) to block before timing
+     *   out while selecting curl handles. Defaults to 1 second.
+     *
+     * @param array $options
+     */
+    public function __construct(array $options = [])
+    {
+        $this->factory = isset($options['handle_factory'])
+            ? $options['handle_factory'] : new CurlFactory(50);
+        $this->selectTimeout = isset($options['select_timeout'])
+            ? $options['select_timeout'] : 1;
+    }
+
+    public function __get($name)
+    {
+        if ($name === '_mh') {
+            return $this->_mh = curl_multi_init();
+        }
+
+        throw new \BadMethodCallException();
+    }
+
+    public function __destruct()
+    {
+        if (isset($this->_mh)) {
+            curl_multi_close($this->_mh);
+            unset($this->_mh);
+        }
+    }
+
+    public function __invoke(RequestInterface $request, array $options)
+    {
+        $easy = $this->factory->create($request, $options);
+        $id = (int) $easy->handle;
+
+        $promise = new Promise(
+            [$this, 'execute'],
+            function () use ($id) { return $this->cancel($id); }
+        );
+
+        $this->addRequest(['easy' => $easy, 'deferred' => $promise]);
+
+        return $promise;
+    }
+
+    /**
+     * Ticks the curl event loop.
+     */
+    public function tick()
+    {
+        // Add any delayed handles if needed.
+        if ($this->delays) {
+            $currentTime = microtime(true);
+            foreach ($this->delays as $id => $delay) {
+                if ($currentTime >= $delay) {
+                    unset($this->delays[$id]);
+                    curl_multi_add_handle(
+                        $this->_mh,
+                        $this->handles[$id]['easy']->handle
+                    );
+                }
+            }
+        }
+
+        // Step through the task queue which may add additional requests.
+        P\queue()->run();
+
+        if ($this->active &&
+            curl_multi_select($this->_mh, $this->selectTimeout) === -1
+        ) {
+            // Perform a usleep if a select returns -1.
+            // See: https://bugs.php.net/bug.php?id=61141
+            usleep(250);
+        }
+
+        while (curl_multi_exec($this->_mh, $this->active) === CURLM_CALL_MULTI_PERFORM);
+
+        $this->processMessages();
+    }
+
+    /**
+     * Runs until all outstanding connections have completed.
+     */
+    public function execute()
+    {
+        $queue = P\queue();
+
+        while ($this->handles || !$queue->isEmpty()) {
+            // If there are no transfers, then sleep for the next delay
+            if (!$this->active && $this->delays) {
+                usleep($this->timeToNext());
+            }
+            $this->tick();
+        }
+    }
+
+    private function addRequest(array $entry)
+    {
+        $easy = $entry['easy'];
+        $id = (int) $easy->handle;
+        $this->handles[$id] = $entry;
+        if (empty($easy->options['delay'])) {
+            curl_multi_add_handle($this->_mh, $easy->handle);
+        } else {
+            $this->delays[$id] = microtime(true) + ($easy->options['delay'] / 1000);
+        }
+    }
+
+    /**
+     * Cancels a handle from sending and removes references to it.
+     *
+     * @param int $id Handle ID to cancel and remove.
+     *
+     * @return bool True on success, false on failure.
+     */
+    private function cancel($id)
+    {
+        // Cannot cancel if it has been processed.
+        if (!isset($this->handles[$id])) {
+            return false;
+        }
+
+        $handle = $this->handles[$id]['easy']->handle;
+        unset($this->delays[$id], $this->handles[$id]);
+        curl_multi_remove_handle($this->_mh, $handle);
+        curl_close($handle);
+
+        return true;
+    }
+
+    private function processMessages()
+    {
+        while ($done = curl_multi_info_read($this->_mh)) {
+            $id = (int) $done['handle'];
+            curl_multi_remove_handle($this->_mh, $done['handle']);
+
+            if (!isset($this->handles[$id])) {
+                // Probably was cancelled.
+                continue;
+            }
+
+            $entry = $this->handles[$id];
+            unset($this->handles[$id], $this->delays[$id]);
+            $entry['easy']->errno = $done['result'];
+            $entry['deferred']->resolve(
+                CurlFactory::finish(
+                    $this,
+                    $entry['easy'],
+                    $this->factory
+                )
+            );
+        }
+    }
+
+    private function timeToNext()
+    {
+        $currentTime = microtime(true);
+        $nextTime = PHP_INT_MAX;
+        foreach ($this->delays as $time) {
+            if ($time < $nextTime) {
+                $nextTime = $time;
+            }
+        }
+
+        return max(0, $nextTime - $currentTime) * 1000000;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/EasyHandle.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/EasyHandle.php
new file mode 100644
index 0000000..7754e91
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/EasyHandle.php
@@ -0,0 +1,92 @@
+<?php
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Psr7\Response;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Represents a cURL easy handle and the data it populates.
+ *
+ * @internal
+ */
+final class EasyHandle
+{
+    /** @var resource cURL resource */
+    public $handle;
+
+    /** @var StreamInterface Where data is being written */
+    public $sink;
+
+    /** @var array Received HTTP headers so far */
+    public $headers = [];
+
+    /** @var ResponseInterface Received response (if any) */
+    public $response;
+
+    /** @var RequestInterface Request being sent */
+    public $request;
+
+    /** @var array Request options */
+    public $options = [];
+
+    /** @var int cURL error number (if any) */
+    public $errno = 0;
+
+    /** @var \Exception Exception during on_headers (if any) */
+    public $onHeadersException;
+
+    /**
+     * Attach a response to the easy handle based on the received headers.
+     *
+     * @throws \RuntimeException if no headers have been received.
+     */
+    public function createResponse()
+    {
+        if (empty($this->headers)) {
+            throw new \RuntimeException('No headers have been received');
+        }
+
+        // HTTP-version SP status-code SP reason-phrase
+        $startLine = explode(' ', array_shift($this->headers), 3);
+        $headers = \GuzzleHttp\headers_from_lines($this->headers);
+        $normalizedKeys = \GuzzleHttp\normalize_header_keys($headers);
+
+        if (!empty($this->options['decode_content'])
+            && isset($normalizedKeys['content-encoding'])
+        ) {
+            $headers['x-encoded-content-encoding']
+                = $headers[$normalizedKeys['content-encoding']];
+            unset($headers[$normalizedKeys['content-encoding']]);
+            if (isset($normalizedKeys['content-length'])) {
+                $headers['x-encoded-content-length']
+                    = $headers[$normalizedKeys['content-length']];
+
+                $bodyLength = (int) $this->sink->getSize();
+                if ($bodyLength) {
+                    $headers[$normalizedKeys['content-length']] = $bodyLength;
+                } else {
+                    unset($headers[$normalizedKeys['content-length']]);
+                }
+            }
+        }
+
+        // Attach a response to the easy handle with the parsed headers.
+        $this->response = new Response(
+            $startLine[1],
+            $headers,
+            $this->sink,
+            substr($startLine[0], 5),
+            isset($startLine[2]) ? (string) $startLine[2] : null
+        );
+    }
+
+    public function __get($name)
+    {
+        $msg = $name === 'handle'
+            ? 'The EasyHandle has been released'
+            : 'Invalid property: ' . $name;
+        throw new \BadMethodCallException($msg);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/MockHandler.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/MockHandler.php
new file mode 100644
index 0000000..d892061
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/MockHandler.php
@@ -0,0 +1,189 @@
+<?php
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\HandlerStack;
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Promise\RejectedPromise;
+use GuzzleHttp\TransferStats;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Handler that returns responses or throw exceptions from a queue.
+ */
+class MockHandler implements \Countable
+{
+    private $queue = [];
+    private $lastRequest;
+    private $lastOptions;
+    private $onFulfilled;
+    private $onRejected;
+
+    /**
+     * Creates a new MockHandler that uses the default handler stack list of
+     * middlewares.
+     *
+     * @param array $queue Array of responses, callables, or exceptions.
+     * @param callable $onFulfilled Callback to invoke when the return value is fulfilled.
+     * @param callable $onRejected  Callback to invoke when the return value is rejected.
+     *
+     * @return HandlerStack
+     */
+    public static function createWithMiddleware(
+        array $queue = null,
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        return HandlerStack::create(new self($queue, $onFulfilled, $onRejected));
+    }
+
+    /**
+     * The passed in value must be an array of
+     * {@see Psr7\Http\Message\ResponseInterface} objects, Exceptions,
+     * callables, or Promises.
+     *
+     * @param array $queue
+     * @param callable $onFulfilled Callback to invoke when the return value is fulfilled.
+     * @param callable $onRejected  Callback to invoke when the return value is rejected.
+     */
+    public function __construct(
+        array $queue = null,
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        $this->onFulfilled = $onFulfilled;
+        $this->onRejected = $onRejected;
+
+        if ($queue) {
+            call_user_func_array([$this, 'append'], $queue);
+        }
+    }
+
+    public function __invoke(RequestInterface $request, array $options)
+    {
+        if (!$this->queue) {
+            throw new \OutOfBoundsException('Mock queue is empty');
+        }
+
+        if (isset($options['delay'])) {
+            usleep($options['delay'] * 1000);
+        }
+
+        $this->lastRequest = $request;
+        $this->lastOptions = $options;
+        $response = array_shift($this->queue);
+
+        if (isset($options['on_headers'])) {
+            if (!is_callable($options['on_headers'])) {
+                throw new \InvalidArgumentException('on_headers must be callable');
+            }
+            try {
+                $options['on_headers']($response);
+            } catch (\Exception $e) {
+                $msg = 'An error was encountered during the on_headers event';
+                $response = new RequestException($msg, $request, $response, $e);
+            }
+        }
+
+        if (is_callable($response)) {
+            $response = call_user_func($response, $request, $options);
+        }
+
+        $response = $response instanceof \Exception
+            ? \GuzzleHttp\Promise\rejection_for($response)
+            : \GuzzleHttp\Promise\promise_for($response);
+
+        return $response->then(
+            function ($value) use ($request, $options) {
+                $this->invokeStats($request, $options, $value);
+                if ($this->onFulfilled) {
+                    call_user_func($this->onFulfilled, $value);
+                }
+                if (isset($options['sink'])) {
+                    $contents = (string) $value->getBody();
+                    $sink = $options['sink'];
+
+                    if (is_resource($sink)) {
+                        fwrite($sink, $contents);
+                    } elseif (is_string($sink)) {
+                        file_put_contents($sink, $contents);
+                    } elseif ($sink instanceof \Psr\Http\Message\StreamInterface) {
+                        $sink->write($contents);
+                    }
+                }
+
+                return $value;
+            },
+            function ($reason) use ($request, $options) {
+                $this->invokeStats($request, $options, null, $reason);
+                if ($this->onRejected) {
+                    call_user_func($this->onRejected, $reason);
+                }
+                return \GuzzleHttp\Promise\rejection_for($reason);
+            }
+        );
+    }
+
+    /**
+     * Adds one or more variadic requests, exceptions, callables, or promises
+     * to the queue.
+     */
+    public function append()
+    {
+        foreach (func_get_args() as $value) {
+            if ($value instanceof ResponseInterface
+                || $value instanceof \Exception
+                || $value instanceof PromiseInterface
+                || is_callable($value)
+            ) {
+                $this->queue[] = $value;
+            } else {
+                throw new \InvalidArgumentException('Expected a response or '
+                    . 'exception. Found ' . \GuzzleHttp\describe_type($value));
+            }
+        }
+    }
+
+    /**
+     * Get the last received request.
+     *
+     * @return RequestInterface
+     */
+    public function getLastRequest()
+    {
+        return $this->lastRequest;
+    }
+
+    /**
+     * Get the last received request options.
+     *
+     * @return array
+     */
+    public function getLastOptions()
+    {
+        return $this->lastOptions;
+    }
+
+    /**
+     * Returns the number of remaining items in the queue.
+     *
+     * @return int
+     */
+    public function count()
+    {
+        return count($this->queue);
+    }
+
+    private function invokeStats(
+        RequestInterface $request,
+        array $options,
+        ResponseInterface $response = null,
+        $reason = null
+    ) {
+        if (isset($options['on_stats'])) {
+            $stats = new TransferStats($request, $response, 0, $reason);
+            call_user_func($options['on_stats'], $stats);
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php
new file mode 100644
index 0000000..f8b00be
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/Proxy.php
@@ -0,0 +1,55 @@
+<?php
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\RequestOptions;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Provides basic proxies for handlers.
+ */
+class Proxy
+{
+    /**
+     * Sends synchronous requests to a specific handler while sending all other
+     * requests to another handler.
+     *
+     * @param callable $default Handler used for normal responses
+     * @param callable $sync    Handler used for synchronous responses.
+     *
+     * @return callable Returns the composed handler.
+     */
+    public static function wrapSync(
+        callable $default,
+        callable $sync
+    ) {
+        return function (RequestInterface $request, array $options) use ($default, $sync) {
+            return empty($options[RequestOptions::SYNCHRONOUS])
+                ? $default($request, $options)
+                : $sync($request, $options);
+        };
+    }
+
+    /**
+     * Sends streaming requests to a streaming compatible handler while sending
+     * all other requests to a default handler.
+     *
+     * This, for example, could be useful for taking advantage of the
+     * performance benefits of curl while still supporting true streaming
+     * through the StreamHandler.
+     *
+     * @param callable $default   Handler used for non-streaming responses
+     * @param callable $streaming Handler used for streaming responses
+     *
+     * @return callable Returns the composed handler.
+     */
+    public static function wrapStreaming(
+        callable $default,
+        callable $streaming
+    ) {
+        return function (RequestInterface $request, array $options) use ($default, $streaming) {
+            return empty($options['stream'])
+                ? $default($request, $options)
+                : $streaming($request, $options);
+        };
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/StreamHandler.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/StreamHandler.php
new file mode 100644
index 0000000..b12bfd9
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Handler/StreamHandler.php
@@ -0,0 +1,533 @@
+<?php
+namespace GuzzleHttp\Handler;
+
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Exception\ConnectException;
+use GuzzleHttp\Promise\FulfilledPromise;
+use GuzzleHttp\Promise\RejectedPromise;
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Psr7;
+use GuzzleHttp\TransferStats;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * HTTP handler that uses PHP's HTTP stream wrapper.
+ */
+class StreamHandler
+{
+    private $lastHeaders = [];
+
+    /**
+     * Sends an HTTP request.
+     *
+     * @param RequestInterface $request Request to send.
+     * @param array            $options Request transfer options.
+     *
+     * @return PromiseInterface
+     */
+    public function __invoke(RequestInterface $request, array $options)
+    {
+        // Sleep if there is a delay specified.
+        if (isset($options['delay'])) {
+            usleep($options['delay'] * 1000);
+        }
+
+        $startTime = isset($options['on_stats']) ? microtime(true) : null;
+
+        try {
+            // Does not support the expect header.
+            $request = $request->withoutHeader('Expect');
+
+            // Append a content-length header if body size is zero to match
+            // cURL's behavior.
+            if (0 === $request->getBody()->getSize()) {
+                $request = $request->withHeader('Content-Length', 0);
+            }
+
+            return $this->createResponse(
+                $request,
+                $options,
+                $this->createStream($request, $options),
+                $startTime
+            );
+        } catch (\InvalidArgumentException $e) {
+            throw $e;
+        } catch (\Exception $e) {
+            // Determine if the error was a networking error.
+            $message = $e->getMessage();
+            // This list can probably get more comprehensive.
+            if (strpos($message, 'getaddrinfo') // DNS lookup failed
+                || strpos($message, 'Connection refused')
+                || strpos($message, "couldn't connect to host") // error on HHVM
+            ) {
+                $e = new ConnectException($e->getMessage(), $request, $e);
+            }
+            $e = RequestException::wrapException($request, $e);
+            $this->invokeStats($options, $request, $startTime, null, $e);
+
+            return \GuzzleHttp\Promise\rejection_for($e);
+        }
+    }
+
+    private function invokeStats(
+        array $options,
+        RequestInterface $request,
+        $startTime,
+        ResponseInterface $response = null,
+        $error = null
+    ) {
+        if (isset($options['on_stats'])) {
+            $stats = new TransferStats(
+                $request,
+                $response,
+                microtime(true) - $startTime,
+                $error,
+                []
+            );
+            call_user_func($options['on_stats'], $stats);
+        }
+    }
+
+    private function createResponse(
+        RequestInterface $request,
+        array $options,
+        $stream,
+        $startTime
+    ) {
+        $hdrs = $this->lastHeaders;
+        $this->lastHeaders = [];
+        $parts = explode(' ', array_shift($hdrs), 3);
+        $ver = explode('/', $parts[0])[1];
+        $status = $parts[1];
+        $reason = isset($parts[2]) ? $parts[2] : null;
+        $headers = \GuzzleHttp\headers_from_lines($hdrs);
+        list ($stream, $headers) = $this->checkDecode($options, $headers, $stream);
+        $stream = Psr7\stream_for($stream);
+        $sink = $stream;
+
+        if (strcasecmp('HEAD', $request->getMethod())) {
+            $sink = $this->createSink($stream, $options);
+        }
+
+        $response = new Psr7\Response($status, $headers, $sink, $ver, $reason);
+
+        if (isset($options['on_headers'])) {
+            try {
+                $options['on_headers']($response);
+            } catch (\Exception $e) {
+                $msg = 'An error was encountered during the on_headers event';
+                $ex = new RequestException($msg, $request, $response, $e);
+                return \GuzzleHttp\Promise\rejection_for($ex);
+            }
+        }
+
+        // Do not drain when the request is a HEAD request because they have
+        // no body.
+        if ($sink !== $stream) {
+            $this->drain(
+                $stream,
+                $sink,
+                $response->getHeaderLine('Content-Length')
+            );
+        }
+
+        $this->invokeStats($options, $request, $startTime, $response, null);
+
+        return new FulfilledPromise($response);
+    }
+
+    private function createSink(StreamInterface $stream, array $options)
+    {
+        if (!empty($options['stream'])) {
+            return $stream;
+        }
+
+        $sink = isset($options['sink'])
+            ? $options['sink']
+            : fopen('php://temp', 'r+');
+
+        return is_string($sink)
+            ? new Psr7\LazyOpenStream($sink, 'w+')
+            : Psr7\stream_for($sink);
+    }
+
+    private function checkDecode(array $options, array $headers, $stream)
+    {
+        // Automatically decode responses when instructed.
+        if (!empty($options['decode_content'])) {
+            $normalizedKeys = \GuzzleHttp\normalize_header_keys($headers);
+            if (isset($normalizedKeys['content-encoding'])) {
+                $encoding = $headers[$normalizedKeys['content-encoding']];
+                if ($encoding[0] === 'gzip' || $encoding[0] === 'deflate') {
+                    $stream = new Psr7\InflateStream(
+                        Psr7\stream_for($stream)
+                    );
+                    $headers['x-encoded-content-encoding']
+                        = $headers[$normalizedKeys['content-encoding']];
+                    // Remove content-encoding header
+                    unset($headers[$normalizedKeys['content-encoding']]);
+                    // Fix content-length header
+                    if (isset($normalizedKeys['content-length'])) {
+                        $headers['x-encoded-content-length']
+                            = $headers[$normalizedKeys['content-length']];
+
+                        $length = (int) $stream->getSize();
+                        if ($length === 0) {
+                            unset($headers[$normalizedKeys['content-length']]);
+                        } else {
+                            $headers[$normalizedKeys['content-length']] = [$length];
+                        }
+                    }
+                }
+            }
+        }
+
+        return [$stream, $headers];
+    }
+
+    /**
+     * Drains the source stream into the "sink" client option.
+     *
+     * @param StreamInterface $source
+     * @param StreamInterface $sink
+     * @param string          $contentLength Header specifying the amount of
+     *                                       data to read.
+     *
+     * @return StreamInterface
+     * @throws \RuntimeException when the sink option is invalid.
+     */
+    private function drain(
+        StreamInterface $source,
+        StreamInterface $sink,
+        $contentLength
+    ) {
+        // If a content-length header is provided, then stop reading once
+        // that number of bytes has been read. This can prevent infinitely
+        // reading from a stream when dealing with servers that do not honor
+        // Connection: Close headers.
+        Psr7\copy_to_stream(
+            $source,
+            $sink,
+            (strlen($contentLength) > 0 && (int) $contentLength > 0) ? (int) $contentLength : -1
+        );
+
+        $sink->seek(0);
+        $source->close();
+
+        return $sink;
+    }
+
+    /**
+     * Create a resource and check to ensure it was created successfully
+     *
+     * @param callable $callback Callable that returns stream resource
+     *
+     * @return resource
+     * @throws \RuntimeException on error
+     */
+    private function createResource(callable $callback)
+    {
+        $errors = null;
+        set_error_handler(function ($_, $msg, $file, $line) use (&$errors) {
+            $errors[] = [
+                'message' => $msg,
+                'file'    => $file,
+                'line'    => $line
+            ];
+            return true;
+        });
+
+        $resource = $callback();
+        restore_error_handler();
+
+        if (!$resource) {
+            $message = 'Error creating resource: ';
+            foreach ($errors as $err) {
+                foreach ($err as $key => $value) {
+                    $message .= "[$key] $value" . PHP_EOL;
+                }
+            }
+            throw new \RuntimeException(trim($message));
+        }
+
+        return $resource;
+    }
+
+    private function createStream(RequestInterface $request, array $options)
+    {
+        static $methods;
+        if (!$methods) {
+            $methods = array_flip(get_class_methods(__CLASS__));
+        }
+
+        // HTTP/1.1 streams using the PHP stream wrapper require a
+        // Connection: close header
+        if ($request->getProtocolVersion() == '1.1'
+            && !$request->hasHeader('Connection')
+        ) {
+            $request = $request->withHeader('Connection', 'close');
+        }
+
+        // Ensure SSL is verified by default
+        if (!isset($options['verify'])) {
+            $options['verify'] = true;
+        }
+
+        $params = [];
+        $context = $this->getDefaultContext($request, $options);
+
+        if (isset($options['on_headers']) && !is_callable($options['on_headers'])) {
+            throw new \InvalidArgumentException('on_headers must be callable');
+        }
+
+        if (!empty($options)) {
+            foreach ($options as $key => $value) {
+                $method = "add_{$key}";
+                if (isset($methods[$method])) {
+                    $this->{$method}($request, $context, $value, $params);
+                }
+            }
+        }
+
+        if (isset($options['stream_context'])) {
+            if (!is_array($options['stream_context'])) {
+                throw new \InvalidArgumentException('stream_context must be an array');
+            }
+            $context = array_replace_recursive(
+                $context,
+                $options['stream_context']
+            );
+        }
+
+        // Microsoft NTLM authentication only supported with curl handler
+        if (isset($options['auth'])
+            && is_array($options['auth'])
+            && isset($options['auth'][2])
+            && 'ntlm' == $options['auth'][2]
+        ) {
+
+            throw new \InvalidArgumentException('Microsoft NTLM authentication only supported with curl handler');
+        }
+
+        $uri = $this->resolveHost($request, $options);
+
+        $context = $this->createResource(
+            function () use ($context, $params) {
+                return stream_context_create($context, $params);
+            }
+        );
+
+        return $this->createResource(
+            function () use ($uri, &$http_response_header, $context, $options) {
+                $resource = fopen((string) $uri, 'r', null, $context);
+                $this->lastHeaders = $http_response_header;
+
+                if (isset($options['read_timeout'])) {
+                    $readTimeout = $options['read_timeout'];
+                    $sec = (int) $readTimeout;
+                    $usec = ($readTimeout - $sec) * 100000;
+                    stream_set_timeout($resource, $sec, $usec);
+                }
+
+                return $resource;
+            }
+        );
+    }
+
+    private function resolveHost(RequestInterface $request, array $options)
+    {
+        $uri = $request->getUri();
+
+        if (isset($options['force_ip_resolve']) && !filter_var($uri->getHost(), FILTER_VALIDATE_IP)) {
+            if ('v4' === $options['force_ip_resolve']) {
+                $records = dns_get_record($uri->getHost(), DNS_A);
+                if (!isset($records[0]['ip'])) {
+                    throw new ConnectException(sprintf("Could not resolve IPv4 address for host '%s'", $uri->getHost()), $request);
+                }
+                $uri = $uri->withHost($records[0]['ip']);
+            } elseif ('v6' === $options['force_ip_resolve']) {
+                $records = dns_get_record($uri->getHost(), DNS_AAAA);
+                if (!isset($records[0]['ipv6'])) {
+                    throw new ConnectException(sprintf("Could not resolve IPv6 address for host '%s'", $uri->getHost()), $request);
+                }
+                $uri = $uri->withHost('[' . $records[0]['ipv6'] . ']');
+            }
+        }
+
+        return $uri;
+    }
+
+    private function getDefaultContext(RequestInterface $request)
+    {
+        $headers = '';
+        foreach ($request->getHeaders() as $name => $value) {
+            foreach ($value as $val) {
+                $headers .= "$name: $val\r\n";
+            }
+        }
+
+        $context = [
+            'http' => [
+                'method'           => $request->getMethod(),
+                'header'           => $headers,
+                'protocol_version' => $request->getProtocolVersion(),
+                'ignore_errors'    => true,
+                'follow_location'  => 0,
+            ],
+        ];
+
+        $body = (string) $request->getBody();
+
+        if (!empty($body)) {
+            $context['http']['content'] = $body;
+            // Prevent the HTTP handler from adding a Content-Type header.
+            if (!$request->hasHeader('Content-Type')) {
+                $context['http']['header'] .= "Content-Type:\r\n";
+            }
+        }
+
+        $context['http']['header'] = rtrim($context['http']['header']);
+
+        return $context;
+    }
+
+    private function add_proxy(RequestInterface $request, &$options, $value, &$params)
+    {
+        if (!is_array($value)) {
+            $options['http']['proxy'] = $value;
+        } else {
+            $scheme = $request->getUri()->getScheme();
+            if (isset($value[$scheme])) {
+                if (!isset($value['no'])
+                    || !\GuzzleHttp\is_host_in_noproxy(
+                        $request->getUri()->getHost(),
+                        $value['no']
+                    )
+                ) {
+                    $options['http']['proxy'] = $value[$scheme];
+                }
+            }
+        }
+    }
+
+    private function add_timeout(RequestInterface $request, &$options, $value, &$params)
+    {
+        if ($value > 0) {
+            $options['http']['timeout'] = $value;
+        }
+    }
+
+    private function add_verify(RequestInterface $request, &$options, $value, &$params)
+    {
+        if ($value === true) {
+            // PHP 5.6 or greater will find the system cert by default. When
+            // < 5.6, use the Guzzle bundled cacert.
+            if (PHP_VERSION_ID < 50600) {
+                $options['ssl']['cafile'] = \GuzzleHttp\default_ca_bundle();
+            }
+        } elseif (is_string($value)) {
+            $options['ssl']['cafile'] = $value;
+            if (!file_exists($value)) {
+                throw new \RuntimeException("SSL CA bundle not found: $value");
+            }
+        } elseif ($value === false) {
+            $options['ssl']['verify_peer'] = false;
+            $options['ssl']['verify_peer_name'] = false;
+            return;
+        } else {
+            throw new \InvalidArgumentException('Invalid verify request option');
+        }
+
+        $options['ssl']['verify_peer'] = true;
+        $options['ssl']['verify_peer_name'] = true;
+        $options['ssl']['allow_self_signed'] = false;
+    }
+
+    private function add_cert(RequestInterface $request, &$options, $value, &$params)
+    {
+        if (is_array($value)) {
+            $options['ssl']['passphrase'] = $value[1];
+            $value = $value[0];
+        }
+
+        if (!file_exists($value)) {
+            throw new \RuntimeException("SSL certificate not found: {$value}");
+        }
+
+        $options['ssl']['local_cert'] = $value;
+    }
+
+    private function add_progress(RequestInterface $request, &$options, $value, &$params)
+    {
+        $this->addNotification(
+            $params,
+            function ($code, $a, $b, $c, $transferred, $total) use ($value) {
+                if ($code == STREAM_NOTIFY_PROGRESS) {
+                    $value($total, $transferred, null, null);
+                }
+            }
+        );
+    }
+
+    private function add_debug(RequestInterface $request, &$options, $value, &$params)
+    {
+        if ($value === false) {
+            return;
+        }
+
+        static $map = [
+            STREAM_NOTIFY_CONNECT       => 'CONNECT',
+            STREAM_NOTIFY_AUTH_REQUIRED => 'AUTH_REQUIRED',
+            STREAM_NOTIFY_AUTH_RESULT   => 'AUTH_RESULT',
+            STREAM_NOTIFY_MIME_TYPE_IS  => 'MIME_TYPE_IS',
+            STREAM_NOTIFY_FILE_SIZE_IS  => 'FILE_SIZE_IS',
+            STREAM_NOTIFY_REDIRECTED    => 'REDIRECTED',
+            STREAM_NOTIFY_PROGRESS      => 'PROGRESS',
+            STREAM_NOTIFY_FAILURE       => 'FAILURE',
+            STREAM_NOTIFY_COMPLETED     => 'COMPLETED',
+            STREAM_NOTIFY_RESOLVE       => 'RESOLVE',
+        ];
+        static $args = ['severity', 'message', 'message_code',
+            'bytes_transferred', 'bytes_max'];
+
+        $value = \GuzzleHttp\debug_resource($value);
+        $ident = $request->getMethod() . ' ' . $request->getUri()->withFragment('');
+        $this->addNotification(
+            $params,
+            function () use ($ident, $value, $map, $args) {
+                $passed = func_get_args();
+                $code = array_shift($passed);
+                fprintf($value, '<%s> [%s] ', $ident, $map[$code]);
+                foreach (array_filter($passed) as $i => $v) {
+                    fwrite($value, $args[$i] . ': "' . $v . '" ');
+                }
+                fwrite($value, "\n");
+            }
+        );
+    }
+
+    private function addNotification(array &$params, callable $notify)
+    {
+        // Wrap the existing function if needed.
+        if (!isset($params['notification'])) {
+            $params['notification'] = $notify;
+        } else {
+            $params['notification'] = $this->callArray([
+                $params['notification'],
+                $notify
+            ]);
+        }
+    }
+
+    private function callArray(array $functions)
+    {
+        return function () use ($functions) {
+            $args = func_get_args();
+            foreach ($functions as $fn) {
+                call_user_func_array($fn, $args);
+            }
+        };
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/HandlerStack.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/HandlerStack.php
new file mode 100644
index 0000000..a72e38a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/HandlerStack.php
@@ -0,0 +1,273 @@
+<?php
+namespace GuzzleHttp;
+
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Creates a composed Guzzle handler function by stacking middlewares on top of
+ * an HTTP handler function.
+ */
+class HandlerStack
+{
+    /** @var callable */
+    private $handler;
+
+    /** @var array */
+    private $stack = [];
+
+    /** @var callable|null */
+    private $cached;
+
+    /**
+     * Creates a default handler stack that can be used by clients.
+     *
+     * The returned handler will wrap the provided handler or use the most
+     * appropriate default handler for you system. The returned HandlerStack has
+     * support for cookies, redirects, HTTP error exceptions, and preparing a body
+     * before sending.
+     *
+     * The returned handler stack can be passed to a client in the "handler"
+     * option.
+     *
+     * @param callable $handler HTTP handler function to use with the stack. If no
+     *                          handler is provided, the best handler for your
+     *                          system will be utilized.
+     *
+     * @return HandlerStack
+     */
+    public static function create(callable $handler = null)
+    {
+        $stack = new self($handler ?: choose_handler());
+        $stack->push(Middleware::httpErrors(), 'http_errors');
+        $stack->push(Middleware::redirect(), 'allow_redirects');
+        $stack->push(Middleware::cookies(), 'cookies');
+        $stack->push(Middleware::prepareBody(), 'prepare_body');
+
+        return $stack;
+    }
+
+    /**
+     * @param callable $handler Underlying HTTP handler.
+     */
+    public function __construct(callable $handler = null)
+    {
+        $this->handler = $handler;
+    }
+
+    /**
+     * Invokes the handler stack as a composed handler
+     *
+     * @param RequestInterface $request
+     * @param array            $options
+     */
+    public function __invoke(RequestInterface $request, array $options)
+    {
+        $handler = $this->resolve();
+
+        return $handler($request, $options);
+    }
+
+    /**
+     * Dumps a string representation of the stack.
+     *
+     * @return string
+     */
+    public function __toString()
+    {
+        $depth = 0;
+        $stack = [];
+        if ($this->handler) {
+            $stack[] = "0) Handler: " . $this->debugCallable($this->handler);
+        }
+
+        $result = '';
+        foreach (array_reverse($this->stack) as $tuple) {
+            $depth++;
+            $str = "{$depth}) Name: '{$tuple[1]}', ";
+            $str .= "Function: " . $this->debugCallable($tuple[0]);
+            $result = "> {$str}\n{$result}";
+            $stack[] = $str;
+        }
+
+        foreach (array_keys($stack) as $k) {
+            $result .= "< {$stack[$k]}\n";
+        }
+
+        return $result;
+    }
+
+    /**
+     * Set the HTTP handler that actually returns a promise.
+     *
+     * @param callable $handler Accepts a request and array of options and
+     *                          returns a Promise.
+     */
+    public function setHandler(callable $handler)
+    {
+        $this->handler = $handler;
+        $this->cached = null;
+    }
+
+    /**
+     * Returns true if the builder has a handler.
+     *
+     * @return bool
+     */
+    public function hasHandler()
+    {
+        return (bool) $this->handler;
+    }
+
+    /**
+     * Unshift a middleware to the bottom of the stack.
+     *
+     * @param callable $middleware Middleware function
+     * @param string   $name       Name to register for this middleware.
+     */
+    public function unshift(callable $middleware, $name = null)
+    {
+        array_unshift($this->stack, [$middleware, $name]);
+        $this->cached = null;
+    }
+
+    /**
+     * Push a middleware to the top of the stack.
+     *
+     * @param callable $middleware Middleware function
+     * @param string   $name       Name to register for this middleware.
+     */
+    public function push(callable $middleware, $name = '')
+    {
+        $this->stack[] = [$middleware, $name];
+        $this->cached = null;
+    }
+
+    /**
+     * Add a middleware before another middleware by name.
+     *
+     * @param string   $findName   Middleware to find
+     * @param callable $middleware Middleware function
+     * @param string   $withName   Name to register for this middleware.
+     */
+    public function before($findName, callable $middleware, $withName = '')
+    {
+        $this->splice($findName, $withName, $middleware, true);
+    }
+
+    /**
+     * Add a middleware after another middleware by name.
+     *
+     * @param string   $findName   Middleware to find
+     * @param callable $middleware Middleware function
+     * @param string   $withName   Name to register for this middleware.
+     */
+    public function after($findName, callable $middleware, $withName = '')
+    {
+        $this->splice($findName, $withName, $middleware, false);
+    }
+
+    /**
+     * Remove a middleware by instance or name from the stack.
+     *
+     * @param callable|string $remove Middleware to remove by instance or name.
+     */
+    public function remove($remove)
+    {
+        $this->cached = null;
+        $idx = is_callable($remove) ? 0 : 1;
+        $this->stack = array_values(array_filter(
+            $this->stack,
+            function ($tuple) use ($idx, $remove) {
+                return $tuple[$idx] !== $remove;
+            }
+        ));
+    }
+
+    /**
+     * Compose the middleware and handler into a single callable function.
+     *
+     * @return callable
+     */
+    public function resolve()
+    {
+        if (!$this->cached) {
+            if (!($prev = $this->handler)) {
+                throw new \LogicException('No handler has been specified');
+            }
+
+            foreach (array_reverse($this->stack) as $fn) {
+                $prev = $fn[0]($prev);
+            }
+
+            $this->cached = $prev;
+        }
+
+        return $this->cached;
+    }
+
+    /**
+     * @param $name
+     * @return int
+     */
+    private function findByName($name)
+    {
+        foreach ($this->stack as $k => $v) {
+            if ($v[1] === $name) {
+                return $k;
+            }
+        }
+
+        throw new \InvalidArgumentException("Middleware not found: $name");
+    }
+
+    /**
+     * Splices a function into the middleware list at a specific position.
+     *
+     * @param          $findName
+     * @param          $withName
+     * @param callable $middleware
+     * @param          $before
+     */
+    private function splice($findName, $withName, callable $middleware, $before)
+    {
+        $this->cached = null;
+        $idx = $this->findByName($findName);
+        $tuple = [$middleware, $withName];
+
+        if ($before) {
+            if ($idx === 0) {
+                array_unshift($this->stack, $tuple);
+            } else {
+                $replacement = [$tuple, $this->stack[$idx]];
+                array_splice($this->stack, $idx, 1, $replacement);
+            }
+        } elseif ($idx === count($this->stack) - 1) {
+            $this->stack[] = $tuple;
+        } else {
+            $replacement = [$this->stack[$idx], $tuple];
+            array_splice($this->stack, $idx, 1, $replacement);
+        }
+    }
+
+    /**
+     * Provides a debug string for a given callable.
+     *
+     * @param array|callable $fn Function to write as a string.
+     *
+     * @return string
+     */
+    private function debugCallable($fn)
+    {
+        if (is_string($fn)) {
+            return "callable({$fn})";
+        }
+
+        if (is_array($fn)) {
+            return is_string($fn[0])
+                ? "callable({$fn[0]}::{$fn[1]})"
+                : "callable(['" . get_class($fn[0]) . "', '{$fn[1]}'])";
+        }
+
+        return 'callable(' . spl_object_hash($fn) . ')';
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/MessageFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/MessageFormatter.php
new file mode 100644
index 0000000..6b090a9
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/MessageFormatter.php
@@ -0,0 +1,182 @@
+<?php
+namespace GuzzleHttp;
+
+use Psr\Http\Message\MessageInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Formats log messages using variable substitutions for requests, responses,
+ * and other transactional data.
+ *
+ * The following variable substitutions are supported:
+ *
+ * - {request}:        Full HTTP request message
+ * - {response}:       Full HTTP response message
+ * - {ts}:             ISO 8601 date in GMT
+ * - {date_iso_8601}   ISO 8601 date in GMT
+ * - {date_common_log} Apache common log date using the configured timezone.
+ * - {host}:           Host of the request
+ * - {method}:         Method of the request
+ * - {uri}:            URI of the request
+ * - {host}:           Host of the request
+ * - {version}:        Protocol version
+ * - {target}:         Request target of the request (path + query + fragment)
+ * - {hostname}:       Hostname of the machine that sent the request
+ * - {code}:           Status code of the response (if available)
+ * - {phrase}:         Reason phrase of the response  (if available)
+ * - {error}:          Any error messages (if available)
+ * - {req_header_*}:   Replace `*` with the lowercased name of a request header to add to the message
+ * - {res_header_*}:   Replace `*` with the lowercased name of a response header to add to the message
+ * - {req_headers}:    Request headers
+ * - {res_headers}:    Response headers
+ * - {req_body}:       Request body
+ * - {res_body}:       Response body
+ */
+class MessageFormatter
+{
+    /**
+     * Apache Common Log Format.
+     * @link http://httpd.apache.org/docs/2.4/logs.html#common
+     * @var string
+     */
+    const CLF = "{hostname} {req_header_User-Agent} - [{date_common_log}] \"{method} {target} HTTP/{version}\" {code} {res_header_Content-Length}";
+    const DEBUG = ">>>>>>>>\n{request}\n<<<<<<<<\n{response}\n--------\n{error}";
+    const SHORT = '[{ts}] "{method} {target} HTTP/{version}" {code}';
+
+    /** @var string Template used to format log messages */
+    private $template;
+
+    /**
+     * @param string $template Log message template
+     */
+    public function __construct($template = self::CLF)
+    {
+        $this->template = $template ?: self::CLF;
+    }
+
+    /**
+     * Returns a formatted message string.
+     *
+     * @param RequestInterface  $request  Request that was sent
+     * @param ResponseInterface $response Response that was received
+     * @param \Exception        $error    Exception that was received
+     *
+     * @return string
+     */
+    public function format(
+        RequestInterface $request,
+        ResponseInterface $response = null,
+        \Exception $error = null
+    ) {
+        $cache = [];
+
+        return preg_replace_callback(
+            '/{\s*([A-Za-z_\-\.0-9]+)\s*}/',
+            function (array $matches) use ($request, $response, $error, &$cache) {
+
+                if (isset($cache[$matches[1]])) {
+                    return $cache[$matches[1]];
+                }
+
+                $result = '';
+                switch ($matches[1]) {
+                    case 'request':
+                        $result = Psr7\str($request);
+                        break;
+                    case 'response':
+                        $result = $response ? Psr7\str($response) : '';
+                        break;
+                    case 'req_headers':
+                        $result = trim($request->getMethod()
+                                . ' ' . $request->getRequestTarget())
+                            . ' HTTP/' . $request->getProtocolVersion() . "\r\n"
+                            . $this->headers($request);
+                        break;
+                    case 'res_headers':
+                        $result = $response ?
+                            sprintf(
+                                'HTTP/%s %d %s',
+                                $response->getProtocolVersion(),
+                                $response->getStatusCode(),
+                                $response->getReasonPhrase()
+                            ) . "\r\n" . $this->headers($response)
+                            : 'NULL';
+                        break;
+                    case 'req_body':
+                        $result = $request->getBody();
+                        break;
+                    case 'res_body':
+                        $result = $response ? $response->getBody() : 'NULL';
+                        break;
+                    case 'ts':
+                    case 'date_iso_8601':
+                        $result = gmdate('c');
+                        break;
+                    case 'date_common_log':
+                        $result = date('d/M/Y:H:i:s O');
+                        break;
+                    case 'method':
+                        $result = $request->getMethod();
+                        break;
+                    case 'version':
+                        $result = $request->getProtocolVersion();
+                        break;
+                    case 'uri':
+                    case 'url':
+                        $result = $request->getUri();
+                        break;
+                    case 'target':
+                        $result = $request->getRequestTarget();
+                        break;
+                    case 'req_version':
+                        $result = $request->getProtocolVersion();
+                        break;
+                    case 'res_version':
+                        $result = $response
+                            ? $response->getProtocolVersion()
+                            : 'NULL';
+                        break;
+                    case 'host':
+                        $result = $request->getHeaderLine('Host');
+                        break;
+                    case 'hostname':
+                        $result = gethostname();
+                        break;
+                    case 'code':
+                        $result = $response ? $response->getStatusCode() : 'NULL';
+                        break;
+                    case 'phrase':
+                        $result = $response ? $response->getReasonPhrase() : 'NULL';
+                        break;
+                    case 'error':
+                        $result = $error ? $error->getMessage() : 'NULL';
+                        break;
+                    default:
+                        // handle prefixed dynamic headers
+                        if (strpos($matches[1], 'req_header_') === 0) {
+                            $result = $request->getHeaderLine(substr($matches[1], 11));
+                        } elseif (strpos($matches[1], 'res_header_') === 0) {
+                            $result = $response
+                                ? $response->getHeaderLine(substr($matches[1], 11))
+                                : 'NULL';
+                        }
+                }
+
+                $cache[$matches[1]] = $result;
+                return $result;
+            },
+            $this->template
+        );
+    }
+
+    private function headers(MessageInterface $message)
+    {
+        $result = '';
+        foreach ($message->getHeaders() as $name => $values) {
+            $result .= $name . ': ' . implode(', ', $values) . "\r\n";
+        }
+
+        return trim($result);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Middleware.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Middleware.php
new file mode 100644
index 0000000..9d79bd2
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Middleware.php
@@ -0,0 +1,254 @@
+<?php
+namespace GuzzleHttp;
+
+use GuzzleHttp\Cookie\CookieJarInterface;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\Promise\RejectedPromise;
+use GuzzleHttp\Psr7;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Log\LoggerInterface;
+use Psr\Log\LogLevel;
+
+/**
+ * Functions used to create and wrap handlers with handler middleware.
+ */
+final class Middleware
+{
+    /**
+     * Middleware that adds cookies to requests.
+     *
+     * The options array must be set to a CookieJarInterface in order to use
+     * cookies. This is typically handled for you by a client.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function cookies()
+    {
+        return function (callable $handler) {
+            return function ($request, array $options) use ($handler) {
+                if (empty($options['cookies'])) {
+                    return $handler($request, $options);
+                } elseif (!($options['cookies'] instanceof CookieJarInterface)) {
+                    throw new \InvalidArgumentException('cookies must be an instance of GuzzleHttp\Cookie\CookieJarInterface');
+                }
+                $cookieJar = $options['cookies'];
+                $request = $cookieJar->withCookieHeader($request);
+                return $handler($request, $options)
+                    ->then(function ($response) use ($cookieJar, $request) {
+                        $cookieJar->extractCookies($request, $response);
+                        return $response;
+                    }
+                );
+            };
+        };
+    }
+
+    /**
+     * Middleware that throws exceptions for 4xx or 5xx responses when the
+     * "http_error" request option is set to true.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function httpErrors()
+    {
+        return function (callable $handler) {
+            return function ($request, array $options) use ($handler) {
+                if (empty($options['http_errors'])) {
+                    return $handler($request, $options);
+                }
+                return $handler($request, $options)->then(
+                    function (ResponseInterface $response) use ($request, $handler) {
+                        $code = $response->getStatusCode();
+                        if ($code < 400) {
+                            return $response;
+                        }
+                        throw RequestException::create($request, $response);
+                    }
+                );
+            };
+        };
+    }
+
+    /**
+     * Middleware that pushes history data to an ArrayAccess container.
+     *
+     * @param array $container Container to hold the history (by reference).
+     *
+     * @return callable Returns a function that accepts the next handler.
+     * @throws \InvalidArgumentException if container is not an array or ArrayAccess.
+     */
+    public static function history(&$container)
+    {
+        if (!is_array($container) && !$container instanceof \ArrayAccess) {
+            throw new \InvalidArgumentException('history container must be an array or object implementing ArrayAccess');
+        }
+
+        return function (callable $handler) use (&$container) {
+            return function ($request, array $options) use ($handler, &$container) {
+                return $handler($request, $options)->then(
+                    function ($value) use ($request, &$container, $options) {
+                        $container[] = [
+                            'request'  => $request,
+                            'response' => $value,
+                            'error'    => null,
+                            'options'  => $options
+                        ];
+                        return $value;
+                    },
+                    function ($reason) use ($request, &$container, $options) {
+                        $container[] = [
+                            'request'  => $request,
+                            'response' => null,
+                            'error'    => $reason,
+                            'options'  => $options
+                        ];
+                        return \GuzzleHttp\Promise\rejection_for($reason);
+                    }
+                );
+            };
+        };
+    }
+
+    /**
+     * Middleware that invokes a callback before and after sending a request.
+     *
+     * The provided listener cannot modify or alter the response. It simply
+     * "taps" into the chain to be notified before returning the promise. The
+     * before listener accepts a request and options array, and the after
+     * listener accepts a request, options array, and response promise.
+     *
+     * @param callable $before Function to invoke before forwarding the request.
+     * @param callable $after  Function invoked after forwarding.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function tap(callable $before = null, callable $after = null)
+    {
+        return function (callable $handler) use ($before, $after) {
+            return function ($request, array $options) use ($handler, $before, $after) {
+                if ($before) {
+                    $before($request, $options);
+                }
+                $response = $handler($request, $options);
+                if ($after) {
+                    $after($request, $options, $response);
+                }
+                return $response;
+            };
+        };
+    }
+
+    /**
+     * Middleware that handles request redirects.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function redirect()
+    {
+        return function (callable $handler) {
+            return new RedirectMiddleware($handler);
+        };
+    }
+
+    /**
+     * Middleware that retries requests based on the boolean result of
+     * invoking the provided "decider" function.
+     *
+     * If no delay function is provided, a simple implementation of exponential
+     * backoff will be utilized.
+     *
+     * @param callable $decider Function that accepts the number of retries,
+     *                          a request, [response], and [exception] and
+     *                          returns true if the request is to be retried.
+     * @param callable $delay   Function that accepts the number of retries and
+     *                          returns the number of milliseconds to delay.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function retry(callable $decider, callable $delay = null)
+    {
+        return function (callable $handler) use ($decider, $delay) {
+            return new RetryMiddleware($decider, $handler, $delay);
+        };
+    }
+
+    /**
+     * Middleware that logs requests, responses, and errors using a message
+     * formatter.
+     *
+     * @param LoggerInterface  $logger Logs messages.
+     * @param MessageFormatter $formatter Formatter used to create message strings.
+     * @param string           $logLevel Level at which to log requests.
+     *
+     * @return callable Returns a function that accepts the next handler.
+     */
+    public static function log(LoggerInterface $logger, MessageFormatter $formatter, $logLevel = LogLevel::INFO)
+    {
+        return function (callable $handler) use ($logger, $formatter, $logLevel) {
+            return function ($request, array $options) use ($handler, $logger, $formatter, $logLevel) {
+                return $handler($request, $options)->then(
+                    function ($response) use ($logger, $request, $formatter, $logLevel) {
+                        $message = $formatter->format($request, $response);
+                        $logger->log($logLevel, $message);
+                        return $response;
+                    },
+                    function ($reason) use ($logger, $request, $formatter) {
+                        $response = $reason instanceof RequestException
+                            ? $reason->getResponse()
+                            : null;
+                        $message = $formatter->format($request, $response, $reason);
+                        $logger->notice($message);
+                        return \GuzzleHttp\Promise\rejection_for($reason);
+                    }
+                );
+            };
+        };
+    }
+
+    /**
+     * This middleware adds a default content-type if possible, a default
+     * content-length or transfer-encoding header, and the expect header.
+     *
+     * @return callable
+     */
+    public static function prepareBody()
+    {
+        return function (callable $handler) {
+            return new PrepareBodyMiddleware($handler);
+        };
+    }
+
+    /**
+     * Middleware that applies a map function to the request before passing to
+     * the next handler.
+     *
+     * @param callable $fn Function that accepts a RequestInterface and returns
+     *                     a RequestInterface.
+     * @return callable
+     */
+    public static function mapRequest(callable $fn)
+    {
+        return function (callable $handler) use ($fn) {
+            return function ($request, array $options) use ($handler, $fn) {
+                return $handler($fn($request), $options);
+            };
+        };
+    }
+
+    /**
+     * Middleware that applies a map function to the resolved promise's
+     * response.
+     *
+     * @param callable $fn Function that accepts a ResponseInterface and
+     *                     returns a ResponseInterface.
+     * @return callable
+     */
+    public static function mapResponse(callable $fn)
+    {
+        return function (callable $handler) use ($fn) {
+            return function ($request, array $options) use ($handler, $fn) {
+                return $handler($request, $options)->then($fn);
+            };
+        };
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Pool.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Pool.php
new file mode 100644
index 0000000..8f1be33
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/Pool.php
@@ -0,0 +1,123 @@
+<?php
+namespace GuzzleHttp;
+
+use GuzzleHttp\Promise\PromisorInterface;
+use Psr\Http\Message\RequestInterface;
+use GuzzleHttp\Promise\EachPromise;
+
+/**
+ * Sends and iterator of requests concurrently using a capped pool size.
+ *
+ * The pool will read from an iterator until it is cancelled or until the
+ * iterator is consumed. When a request is yielded, the request is sent after
+ * applying the "request_options" request options (if provided in the ctor).
+ *
+ * When a function is yielded by the iterator, the function is provided the
+ * "request_options" array that should be merged on top of any existing
+ * options, and the function MUST then return a wait-able promise.
+ */
+class Pool implements PromisorInterface
+{
+    /** @var EachPromise */
+    private $each;
+
+    /**
+     * @param ClientInterface $client   Client used to send the requests.
+     * @param array|\Iterator $requests Requests or functions that return
+     *                                  requests to send concurrently.
+     * @param array           $config   Associative array of options
+     *     - concurrency: (int) Maximum number of requests to send concurrently
+     *     - options: Array of request options to apply to each request.
+     *     - fulfilled: (callable) Function to invoke when a request completes.
+     *     - rejected: (callable) Function to invoke when a request is rejected.
+     */
+    public function __construct(
+        ClientInterface $client,
+        $requests,
+        array $config = []
+    ) {
+        // Backwards compatibility.
+        if (isset($config['pool_size'])) {
+            $config['concurrency'] = $config['pool_size'];
+        } elseif (!isset($config['concurrency'])) {
+            $config['concurrency'] = 25;
+        }
+
+        if (isset($config['options'])) {
+            $opts = $config['options'];
+            unset($config['options']);
+        } else {
+            $opts = [];
+        }
+
+        $iterable = \GuzzleHttp\Promise\iter_for($requests);
+        $requests = function () use ($iterable, $client, $opts) {
+            foreach ($iterable as $key => $rfn) {
+                if ($rfn instanceof RequestInterface) {
+                    yield $key => $client->sendAsync($rfn, $opts);
+                } elseif (is_callable($rfn)) {
+                    yield $key => $rfn($opts);
+                } else {
+                    throw new \InvalidArgumentException('Each value yielded by '
+                        . 'the iterator must be a Psr7\Http\Message\RequestInterface '
+                        . 'or a callable that returns a promise that fulfills '
+                        . 'with a Psr7\Message\Http\ResponseInterface object.');
+                }
+            }
+        };
+
+        $this->each = new EachPromise($requests(), $config);
+    }
+
+    public function promise()
+    {
+        return $this->each->promise();
+    }
+
+    /**
+     * Sends multiple requests concurrently and returns an array of responses
+     * and exceptions that uses the same ordering as the provided requests.
+     *
+     * IMPORTANT: This method keeps every request and response in memory, and
+     * as such, is NOT recommended when sending a large number or an
+     * indeterminate number of requests concurrently.
+     *
+     * @param ClientInterface $client   Client used to send the requests
+     * @param array|\Iterator $requests Requests to send concurrently.
+     * @param array           $options  Passes through the options available in
+     *                                  {@see GuzzleHttp\Pool::__construct}
+     *
+     * @return array Returns an array containing the response or an exception
+     *               in the same order that the requests were sent.
+     * @throws \InvalidArgumentException if the event format is incorrect.
+     */
+    public static function batch(
+        ClientInterface $client,
+        $requests,
+        array $options = []
+    ) {
+        $res = [];
+        self::cmpCallback($options, 'fulfilled', $res);
+        self::cmpCallback($options, 'rejected', $res);
+        $pool = new static($client, $requests, $options);
+        $pool->promise()->wait();
+        ksort($res);
+
+        return $res;
+    }
+
+    private static function cmpCallback(array &$options, $name, array &$results)
+    {
+        if (!isset($options[$name])) {
+            $options[$name] = function ($v, $k) use (&$results) {
+                $results[$k] = $v;
+            };
+        } else {
+            $currentFn = $options[$name];
+            $options[$name] = function ($v, $k) use (&$results, $currentFn) {
+                $currentFn($v, $k);
+                $results[$k] = $v;
+            };
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php
new file mode 100644
index 0000000..2eb95f9
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php
@@ -0,0 +1,106 @@
+<?php
+namespace GuzzleHttp;
+
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Psr7;
+use Psr\Http\Message\RequestInterface;
+
+/**
+ * Prepares requests that contain a body, adding the Content-Length,
+ * Content-Type, and Expect headers.
+ */
+class PrepareBodyMiddleware
+{
+    /** @var callable  */
+    private $nextHandler;
+
+    /**
+     * @param callable $nextHandler Next handler to invoke.
+     */
+    public function __construct(callable $nextHandler)
+    {
+        $this->nextHandler = $nextHandler;
+    }
+
+    /**
+     * @param RequestInterface $request
+     * @param array            $options
+     *
+     * @return PromiseInterface
+     */
+    public function __invoke(RequestInterface $request, array $options)
+    {
+        $fn = $this->nextHandler;
+
+        // Don't do anything if the request has no body.
+        if ($request->getBody()->getSize() === 0) {
+            return $fn($request, $options);
+        }
+
+        $modify = [];
+
+        // Add a default content-type if possible.
+        if (!$request->hasHeader('Content-Type')) {
+            if ($uri = $request->getBody()->getMetadata('uri')) {
+                if ($type = Psr7\mimetype_from_filename($uri)) {
+                    $modify['set_headers']['Content-Type'] = $type;
+                }
+            }
+        }
+
+        // Add a default content-length or transfer-encoding header.
+        if (!$request->hasHeader('Content-Length')
+            && !$request->hasHeader('Transfer-Encoding')
+        ) {
+            $size = $request->getBody()->getSize();
+            if ($size !== null) {
+                $modify['set_headers']['Content-Length'] = $size;
+            } else {
+                $modify['set_headers']['Transfer-Encoding'] = 'chunked';
+            }
+        }
+
+        // Add the expect header if needed.
+        $this->addExpectHeader($request, $options, $modify);
+
+        return $fn(Psr7\modify_request($request, $modify), $options);
+    }
+
+    private function addExpectHeader(
+        RequestInterface $request,
+        array $options,
+        array &$modify
+    ) {
+        // Determine if the Expect header should be used
+        if ($request->hasHeader('Expect')) {
+            return;
+        }
+
+        $expect = isset($options['expect']) ? $options['expect'] : null;
+
+        // Return if disabled or if you're not using HTTP/1.1 or HTTP/2.0
+        if ($expect === false || $request->getProtocolVersion() < 1.1) {
+            return;
+        }
+
+        // The expect header is unconditionally enabled
+        if ($expect === true) {
+            $modify['set_headers']['Expect'] = '100-Continue';
+            return;
+        }
+
+        // By default, send the expect header when the payload is > 1mb
+        if ($expect === null) {
+            $expect = 1048576;
+        }
+
+        // Always add if the body cannot be rewound, the size cannot be
+        // determined, or the size is greater than the cutoff threshold
+        $body = $request->getBody();
+        $size = $body->getSize();
+
+        if ($size === null || $size >= (int) $expect || !$body->isSeekable()) {
+            $modify['set_headers']['Expect'] = '100-Continue';
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php
new file mode 100644
index 0000000..131b771
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/RedirectMiddleware.php
@@ -0,0 +1,237 @@
+<?php
+namespace GuzzleHttp;
+
+use GuzzleHttp\Exception\BadResponseException;
+use GuzzleHttp\Exception\TooManyRedirectsException;
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Psr7;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Request redirect middleware.
+ *
+ * Apply this middleware like other middleware using
+ * {@see GuzzleHttp\Middleware::redirect()}.
+ */
+class RedirectMiddleware
+{
+    const HISTORY_HEADER = 'X-Guzzle-Redirect-History';
+
+    const STATUS_HISTORY_HEADER = 'X-Guzzle-Redirect-Status-History';
+
+    public static $defaultSettings = [
+        'max'             => 5,
+        'protocols'       => ['http', 'https'],
+        'strict'          => false,
+        'referer'         => false,
+        'track_redirects' => false,
+    ];
+
+    /** @var callable  */
+    private $nextHandler;
+
+    /**
+     * @param callable $nextHandler Next handler to invoke.
+     */
+    public function __construct(callable $nextHandler)
+    {
+        $this->nextHandler = $nextHandler;
+    }
+
+    /**
+     * @param RequestInterface $request
+     * @param array            $options
+     *
+     * @return PromiseInterface
+     */
+    public function __invoke(RequestInterface $request, array $options)
+    {
+        $fn = $this->nextHandler;
+
+        if (empty($options['allow_redirects'])) {
+            return $fn($request, $options);
+        }
+
+        if ($options['allow_redirects'] === true) {
+            $options['allow_redirects'] = self::$defaultSettings;
+        } elseif (!is_array($options['allow_redirects'])) {
+            throw new \InvalidArgumentException('allow_redirects must be true, false, or array');
+        } else {
+            // Merge the default settings with the provided settings
+            $options['allow_redirects'] += self::$defaultSettings;
+        }
+
+        if (empty($options['allow_redirects']['max'])) {
+            return $fn($request, $options);
+        }
+
+        return $fn($request, $options)
+            ->then(function (ResponseInterface $response) use ($request, $options) {
+                return $this->checkRedirect($request, $options, $response);
+            });
+    }
+
+    /**
+     * @param RequestInterface  $request
+     * @param array             $options
+     * @param ResponseInterface|PromiseInterface $response
+     *
+     * @return ResponseInterface|PromiseInterface
+     */
+    public function checkRedirect(
+        RequestInterface $request,
+        array $options,
+        ResponseInterface $response
+    ) {
+        if (substr($response->getStatusCode(), 0, 1) != '3'
+            || !$response->hasHeader('Location')
+        ) {
+            return $response;
+        }
+
+        $this->guardMax($request, $options);
+        $nextRequest = $this->modifyRequest($request, $options, $response);
+
+        if (isset($options['allow_redirects']['on_redirect'])) {
+            call_user_func(
+                $options['allow_redirects']['on_redirect'],
+                $request,
+                $response,
+                $nextRequest->getUri()
+            );
+        }
+
+        /** @var PromiseInterface|ResponseInterface $promise */
+        $promise = $this($nextRequest, $options);
+
+        // Add headers to be able to track history of redirects.
+        if (!empty($options['allow_redirects']['track_redirects'])) {
+            return $this->withTracking(
+                $promise,
+                (string) $nextRequest->getUri(),
+                $response->getStatusCode()
+            );
+        }
+
+        return $promise;
+    }
+
+    private function withTracking(PromiseInterface $promise, $uri, $statusCode)
+    {
+        return $promise->then(
+            function (ResponseInterface $response) use ($uri, $statusCode) {
+                // Note that we are pushing to the front of the list as this
+                // would be an earlier response than what is currently present
+                // in the history header.
+                $historyHeader = $response->getHeader(self::HISTORY_HEADER);
+                $statusHeader = $response->getHeader(self::STATUS_HISTORY_HEADER);
+                array_unshift($historyHeader, $uri);
+                array_unshift($statusHeader, $statusCode);
+                return $response->withHeader(self::HISTORY_HEADER, $historyHeader)
+                                ->withHeader(self::STATUS_HISTORY_HEADER, $statusHeader);
+            }
+        );
+    }
+
+    private function guardMax(RequestInterface $request, array &$options)
+    {
+        $current = isset($options['__redirect_count'])
+            ? $options['__redirect_count']
+            : 0;
+        $options['__redirect_count'] = $current + 1;
+        $max = $options['allow_redirects']['max'];
+
+        if ($options['__redirect_count'] > $max) {
+            throw new TooManyRedirectsException(
+                "Will not follow more than {$max} redirects",
+                $request
+            );
+        }
+    }
+
+    /**
+     * @param RequestInterface  $request
+     * @param array             $options
+     * @param ResponseInterface $response
+     *
+     * @return RequestInterface
+     */
+    public function modifyRequest(
+        RequestInterface $request,
+        array $options,
+        ResponseInterface $response
+    ) {
+        // Request modifications to apply.
+        $modify = [];
+        $protocols = $options['allow_redirects']['protocols'];
+
+        // Use a GET request if this is an entity enclosing request and we are
+        // not forcing RFC compliance, but rather emulating what all browsers
+        // would do.
+        $statusCode = $response->getStatusCode();
+        if ($statusCode == 303 ||
+            ($statusCode <= 302 && $request->getBody() && !$options['allow_redirects']['strict'])
+        ) {
+            $modify['method'] = 'GET';
+            $modify['body'] = '';
+        }
+
+        $modify['uri'] = $this->redirectUri($request, $response, $protocols);
+        Psr7\rewind_body($request);
+
+        // Add the Referer header if it is told to do so and only
+        // add the header if we are not redirecting from https to http.
+        if ($options['allow_redirects']['referer']
+            && $modify['uri']->getScheme() === $request->getUri()->getScheme()
+        ) {
+            $uri = $request->getUri()->withUserInfo('', '');
+            $modify['set_headers']['Referer'] = (string) $uri;
+        } else {
+            $modify['remove_headers'][] = 'Referer';
+        }
+
+        // Remove Authorization header if host is different.
+        if ($request->getUri()->getHost() !== $modify['uri']->getHost()) {
+            $modify['remove_headers'][] = 'Authorization';
+        }
+
+        return Psr7\modify_request($request, $modify);
+    }
+
+    /**
+     * Set the appropriate URL on the request based on the location header
+     *
+     * @param RequestInterface  $request
+     * @param ResponseInterface $response
+     * @param array             $protocols
+     *
+     * @return UriInterface
+     */
+    private function redirectUri(
+        RequestInterface $request,
+        ResponseInterface $response,
+        array $protocols
+    ) {
+        $location = Psr7\UriResolver::resolve(
+            $request->getUri(),
+            new Psr7\Uri($response->getHeaderLine('Location'))
+        );
+
+        // Ensure that the redirect URI is allowed based on the protocols.
+        if (!in_array($location->getScheme(), $protocols)) {
+            throw new BadResponseException(
+                sprintf(
+                    'Redirect URI, %s, does not use one of the allowed redirect protocols: %s',
+                    $location,
+                    implode(', ', $protocols)
+                ),
+                $request,
+                $response
+            );
+        }
+
+        return $location;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/RequestOptions.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/RequestOptions.php
new file mode 100644
index 0000000..c6aacfb
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/RequestOptions.php
@@ -0,0 +1,255 @@
+<?php
+namespace GuzzleHttp;
+
+/**
+ * This class contains a list of built-in Guzzle request options.
+ *
+ * More documentation for each option can be found at http://guzzlephp.org/.
+ *
+ * @link http://docs.guzzlephp.org/en/v6/request-options.html
+ */
+final class RequestOptions
+{
+    /**
+     * allow_redirects: (bool|array) Controls redirect behavior. Pass false
+     * to disable redirects, pass true to enable redirects, pass an
+     * associative to provide custom redirect settings. Defaults to "false".
+     * This option only works if your handler has the RedirectMiddleware. When
+     * passing an associative array, you can provide the following key value
+     * pairs:
+     *
+     * - max: (int, default=5) maximum number of allowed redirects.
+     * - strict: (bool, default=false) Set to true to use strict redirects
+     *   meaning redirect POST requests with POST requests vs. doing what most
+     *   browsers do which is redirect POST requests with GET requests
+     * - referer: (bool, default=true) Set to false to disable the Referer
+     *   header.
+     * - protocols: (array, default=['http', 'https']) Allowed redirect
+     *   protocols.
+     * - on_redirect: (callable) PHP callable that is invoked when a redirect
+     *   is encountered. The callable is invoked with the request, the redirect
+     *   response that was received, and the effective URI. Any return value
+     *   from the on_redirect function is ignored.
+     */
+    const ALLOW_REDIRECTS = 'allow_redirects';
+
+    /**
+     * auth: (array) Pass an array of HTTP authentication parameters to use
+     * with the request. The array must contain the username in index [0],
+     * the password in index [1], and you can optionally provide a built-in
+     * authentication type in index [2]. Pass null to disable authentication
+     * for a request.
+     */
+    const AUTH = 'auth';
+
+    /**
+     * body: (resource|string|null|int|float|StreamInterface|callable|\Iterator)
+     * Body to send in the request.
+     */
+    const BODY = 'body';
+
+    /**
+     * cert: (string|array) Set to a string to specify the path to a file
+     * containing a PEM formatted SSL client side certificate. If a password
+     * is required, then set cert to an array containing the path to the PEM
+     * file in the first array element followed by the certificate password
+     * in the second array element.
+     */
+    const CERT = 'cert';
+
+    /**
+     * cookies: (bool|GuzzleHttp\Cookie\CookieJarInterface, default=false)
+     * Specifies whether or not cookies are used in a request or what cookie
+     * jar to use or what cookies to send. This option only works if your
+     * handler has the `cookie` middleware. Valid values are `false` and
+     * an instance of {@see GuzzleHttp\Cookie\CookieJarInterface}.
+     */
+    const COOKIES = 'cookies';
+
+    /**
+     * connect_timeout: (float, default=0) Float describing the number of
+     * seconds to wait while trying to connect to a server. Use 0 to wait
+     * indefinitely (the default behavior).
+     */
+    const CONNECT_TIMEOUT = 'connect_timeout';
+
+    /**
+     * debug: (bool|resource) Set to true or set to a PHP stream returned by
+     * fopen()  enable debug output with the HTTP handler used to send a
+     * request.
+     */
+    const DEBUG = 'debug';
+
+    /**
+     * decode_content: (bool, default=true) Specify whether or not
+     * Content-Encoding responses (gzip, deflate, etc.) are automatically
+     * decoded.
+     */
+    const DECODE_CONTENT = 'decode_content';
+
+    /**
+     * delay: (int) The amount of time to delay before sending in milliseconds.
+     */
+    const DELAY = 'delay';
+
+    /**
+     * expect: (bool|integer) Controls the behavior of the
+     * "Expect: 100-Continue" header.
+     *
+     * Set to `true` to enable the "Expect: 100-Continue" header for all
+     * requests that sends a body. Set to `false` to disable the
+     * "Expect: 100-Continue" header for all requests. Set to a number so that
+     * the size of the payload must be greater than the number in order to send
+     * the Expect header. Setting to a number will send the Expect header for
+     * all requests in which the size of the payload cannot be determined or
+     * where the body is not rewindable.
+     *
+     * By default, Guzzle will add the "Expect: 100-Continue" header when the
+     * size of the body of a request is greater than 1 MB and a request is
+     * using HTTP/1.1.
+     */
+    const EXPECT = 'expect';
+
+    /**
+     * form_params: (array) Associative array of form field names to values
+     * where each value is a string or array of strings. Sets the Content-Type
+     * header to application/x-www-form-urlencoded when no Content-Type header
+     * is already present.
+     */
+    const FORM_PARAMS = 'form_params';
+
+    /**
+     * headers: (array) Associative array of HTTP headers. Each value MUST be
+     * a string or array of strings.
+     */
+    const HEADERS = 'headers';
+
+    /**
+     * http_errors: (bool, default=true) Set to false to disable exceptions
+     * when a non- successful HTTP response is received. By default,
+     * exceptions will be thrown for 4xx and 5xx responses. This option only
+     * works if your handler has the `httpErrors` middleware.
+     */
+    const HTTP_ERRORS = 'http_errors';
+
+    /**
+     * json: (mixed) Adds JSON data to a request. The provided value is JSON
+     * encoded and a Content-Type header of application/json will be added to
+     * the request if no Content-Type header is already present.
+     */
+    const JSON = 'json';
+
+    /**
+     * multipart: (array) Array of associative arrays, each containing a
+     * required "name" key mapping to the form field, name, a required
+     * "contents" key mapping to a StreamInterface|resource|string, an
+     * optional "headers" associative array of custom headers, and an
+     * optional "filename" key mapping to a string to send as the filename in
+     * the part. If no "filename" key is present, then no "filename" attribute
+     * will be added to the part.
+     */
+    const MULTIPART = 'multipart';
+
+    /**
+     * on_headers: (callable) A callable that is invoked when the HTTP headers
+     * of the response have been received but the body has not yet begun to
+     * download.
+     */
+    const ON_HEADERS = 'on_headers';
+
+    /**
+     * on_stats: (callable) allows you to get access to transfer statistics of
+     * a request and access the lower level transfer details of the handler
+     * associated with your client. ``on_stats`` is a callable that is invoked
+     * when a handler has finished sending a request. The callback is invoked
+     * with transfer statistics about the request, the response received, or
+     * the error encountered. Included in the data is the total amount of time
+     * taken to send the request.
+     */
+    const ON_STATS = 'on_stats';
+
+    /**
+     * progress: (callable) Defines a function to invoke when transfer
+     * progress is made. The function accepts the following positional
+     * arguments: the total number of bytes expected to be downloaded, the
+     * number of bytes downloaded so far, the number of bytes expected to be
+     * uploaded, the number of bytes uploaded so far.
+     */
+    const PROGRESS = 'progress';
+
+    /**
+     * proxy: (string|array) Pass a string to specify an HTTP proxy, or an
+     * array to specify different proxies for different protocols (where the
+     * key is the protocol and the value is a proxy string).
+     */
+    const PROXY = 'proxy';
+
+    /**
+     * query: (array|string) Associative array of query string values to add
+     * to the request. This option uses PHP's http_build_query() to create
+     * the string representation. Pass a string value if you need more
+     * control than what this method provides
+     */
+    const QUERY = 'query';
+
+    /**
+     * sink: (resource|string|StreamInterface) Where the data of the
+     * response is written to. Defaults to a PHP temp stream. Providing a
+     * string will write data to a file by the given name.
+     */
+    const SINK = 'sink';
+
+    /**
+     * synchronous: (bool) Set to true to inform HTTP handlers that you intend
+     * on waiting on the response. This can be useful for optimizations. Note
+     * that a promise is still returned if you are using one of the async
+     * client methods.
+     */
+    const SYNCHRONOUS = 'synchronous';
+
+    /**
+     * ssl_key: (array|string) Specify the path to a file containing a private
+     * SSL key in PEM format. If a password is required, then set to an array
+     * containing the path to the SSL key in the first array element followed
+     * by the password required for the certificate in the second element.
+     */
+    const SSL_KEY = 'ssl_key';
+
+    /**
+     * stream: Set to true to attempt to stream a response rather than
+     * download it all up-front.
+     */
+    const STREAM = 'stream';
+
+    /**
+     * verify: (bool|string, default=true) Describes the SSL certificate
+     * verification behavior of a request. Set to true to enable SSL
+     * certificate verification using the system CA bundle when available
+     * (the default). Set to false to disable certificate verification (this
+     * is insecure!). Set to a string to provide the path to a CA bundle on
+     * disk to enable verification using a custom certificate.
+     */
+    const VERIFY = 'verify';
+
+    /**
+     * timeout: (float, default=0) Float describing the timeout of the
+     * request in seconds. Use 0 to wait indefinitely (the default behavior).
+     */
+    const TIMEOUT = 'timeout';
+
+    /**
+     * read_timeout: (float, default=default_socket_timeout ini setting) Float describing
+     * the body read timeout, for stream requests.
+     */
+    const READ_TIMEOUT = 'read_timeout';
+
+    /**
+     * version: (float) Specifies the HTTP protocol version to attempt to use.
+     */
+    const VERSION = 'version';
+
+    /**
+     * force_ip_resolve: (bool) Force client to use only ipv4 or ipv6 protocol
+     */
+    const FORCE_IP_RESOLVE = 'force_ip_resolve';
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/RetryMiddleware.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/RetryMiddleware.php
new file mode 100644
index 0000000..f27090f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/RetryMiddleware.php
@@ -0,0 +1,112 @@
+<?php
+namespace GuzzleHttp;
+
+use GuzzleHttp\Promise\PromiseInterface;
+use GuzzleHttp\Promise\RejectedPromise;
+use GuzzleHttp\Psr7;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Middleware that retries requests based on the boolean result of
+ * invoking the provided "decider" function.
+ */
+class RetryMiddleware
+{
+    /** @var callable  */
+    private $nextHandler;
+
+    /** @var callable */
+    private $decider;
+
+    /**
+     * @param callable $decider     Function that accepts the number of retries,
+     *                              a request, [response], and [exception] and
+     *                              returns true if the request is to be
+     *                              retried.
+     * @param callable $nextHandler Next handler to invoke.
+     * @param callable $delay       Function that accepts the number of retries
+     *                              and [response] and returns the number of
+     *                              milliseconds to delay.
+     */
+    public function __construct(
+        callable $decider,
+        callable $nextHandler,
+        callable $delay = null
+    ) {
+        $this->decider = $decider;
+        $this->nextHandler = $nextHandler;
+        $this->delay = $delay ?: __CLASS__ . '::exponentialDelay';
+    }
+
+    /**
+     * Default exponential backoff delay function.
+     *
+     * @param $retries
+     *
+     * @return int
+     */
+    public static function exponentialDelay($retries)
+    {
+        return (int) pow(2, $retries - 1);
+    }
+
+    /**
+     * @param RequestInterface $request
+     * @param array            $options
+     *
+     * @return PromiseInterface
+     */
+    public function __invoke(RequestInterface $request, array $options)
+    {
+        if (!isset($options['retries'])) {
+            $options['retries'] = 0;
+        }
+
+        $fn = $this->nextHandler;
+        return $fn($request, $options)
+            ->then(
+                $this->onFulfilled($request, $options),
+                $this->onRejected($request, $options)
+            );
+    }
+
+    private function onFulfilled(RequestInterface $req, array $options)
+    {
+        return function ($value) use ($req, $options) {
+            if (!call_user_func(
+                $this->decider,
+                $options['retries'],
+                $req,
+                $value,
+                null
+            )) {
+                return $value;
+            }
+            return $this->doRetry($req, $options, $value);
+        };
+    }
+
+    private function onRejected(RequestInterface $req, array $options)
+    {
+        return function ($reason) use ($req, $options) {
+            if (!call_user_func(
+                $this->decider,
+                $options['retries'],
+                $req,
+                null,
+                $reason
+            )) {
+                return \GuzzleHttp\Promise\rejection_for($reason);
+            }
+            return $this->doRetry($req, $options);
+        };
+    }
+
+    private function doRetry(RequestInterface $request, array $options, ResponseInterface $response = null)
+    {
+        $options['delay'] = call_user_func($this->delay, ++$options['retries'], $response);
+
+        return $this($request, $options);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/TransferStats.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/TransferStats.php
new file mode 100644
index 0000000..15f717e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/TransferStats.php
@@ -0,0 +1,126 @@
+<?php
+namespace GuzzleHttp;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Represents data at the point after it was transferred either successfully
+ * or after a network error.
+ */
+final class TransferStats
+{
+    private $request;
+    private $response;
+    private $transferTime;
+    private $handlerStats;
+    private $handlerErrorData;
+
+    /**
+     * @param RequestInterface  $request          Request that was sent.
+     * @param ResponseInterface $response         Response received (if any)
+     * @param null              $transferTime     Total handler transfer time.
+     * @param mixed             $handlerErrorData Handler error data.
+     * @param array             $handlerStats     Handler specific stats.
+     */
+    public function __construct(
+        RequestInterface $request,
+        ResponseInterface $response = null,
+        $transferTime = null,
+        $handlerErrorData = null,
+        $handlerStats = []
+    ) {
+        $this->request = $request;
+        $this->response = $response;
+        $this->transferTime = $transferTime;
+        $this->handlerErrorData = $handlerErrorData;
+        $this->handlerStats = $handlerStats;
+    }
+
+    /**
+     * @return RequestInterface
+     */
+    public function getRequest()
+    {
+        return $this->request;
+    }
+
+    /**
+     * Returns the response that was received (if any).
+     *
+     * @return ResponseInterface|null
+     */
+    public function getResponse()
+    {
+        return $this->response;
+    }
+
+    /**
+     * Returns true if a response was received.
+     *
+     * @return bool
+     */
+    public function hasResponse()
+    {
+        return $this->response !== null;
+    }
+
+    /**
+     * Gets handler specific error data.
+     *
+     * This might be an exception, a integer representing an error code, or
+     * anything else. Relying on this value assumes that you know what handler
+     * you are using.
+     *
+     * @return mixed
+     */
+    public function getHandlerErrorData()
+    {
+        return $this->handlerErrorData;
+    }
+
+    /**
+     * Get the effective URI the request was sent to.
+     *
+     * @return UriInterface
+     */
+    public function getEffectiveUri()
+    {
+        return $this->request->getUri();
+    }
+
+    /**
+     * Get the estimated time the request was being transferred by the handler.
+     *
+     * @return float Time in seconds.
+     */
+    public function getTransferTime()
+    {
+        return $this->transferTime;
+    }
+
+    /**
+     * Gets an array of all of the handler specific transfer data.
+     *
+     * @return array
+     */
+    public function getHandlerStats()
+    {
+        return $this->handlerStats;
+    }
+
+    /**
+     * Get a specific handler statistic from the handler by name.
+     *
+     * @param string $stat Handler specific transfer stat to retrieve.
+     *
+     * @return mixed|null
+     */
+    public function getHandlerStat($stat)
+    {
+        return isset($this->handlerStats[$stat])
+            ? $this->handlerStats[$stat]
+            : null;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/UriTemplate.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/UriTemplate.php
new file mode 100644
index 0000000..0b1623e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/UriTemplate.php
@@ -0,0 +1,241 @@
+<?php
+namespace GuzzleHttp;
+
+/**
+ * Expands URI templates. Userland implementation of PECL uri_template.
+ *
+ * @link http://tools.ietf.org/html/rfc6570
+ */
+class UriTemplate
+{
+    /** @var string URI template */
+    private $template;
+
+    /** @var array Variables to use in the template expansion */
+    private $variables;
+
+    /** @var array Hash for quick operator lookups */
+    private static $operatorHash = [
+        ''  => ['prefix' => '',  'joiner' => ',', 'query' => false],
+        '+' => ['prefix' => '',  'joiner' => ',', 'query' => false],
+        '#' => ['prefix' => '#', 'joiner' => ',', 'query' => false],
+        '.' => ['prefix' => '.', 'joiner' => '.', 'query' => false],
+        '/' => ['prefix' => '/', 'joiner' => '/', 'query' => false],
+        ';' => ['prefix' => ';', 'joiner' => ';', 'query' => true],
+        '?' => ['prefix' => '?', 'joiner' => '&', 'query' => true],
+        '&' => ['prefix' => '&', 'joiner' => '&', 'query' => true]
+    ];
+
+    /** @var array Delimiters */
+    private static $delims = [':', '/', '?', '#', '[', ']', '@', '!', '$',
+        '&', '\'', '(', ')', '*', '+', ',', ';', '='];
+
+    /** @var array Percent encoded delimiters */
+    private static $delimsPct = ['%3A', '%2F', '%3F', '%23', '%5B', '%5D',
+        '%40', '%21', '%24', '%26', '%27', '%28', '%29', '%2A', '%2B', '%2C',
+        '%3B', '%3D'];
+
+    public function expand($template, array $variables)
+    {
+        if (false === strpos($template, '{')) {
+            return $template;
+        }
+
+        $this->template = $template;
+        $this->variables = $variables;
+
+        return preg_replace_callback(
+            '/\{([^\}]+)\}/',
+            [$this, 'expandMatch'],
+            $this->template
+        );
+    }
+
+    /**
+     * Parse an expression into parts
+     *
+     * @param string $expression Expression to parse
+     *
+     * @return array Returns an associative array of parts
+     */
+    private function parseExpression($expression)
+    {
+        $result = [];
+
+        if (isset(self::$operatorHash[$expression[0]])) {
+            $result['operator'] = $expression[0];
+            $expression = substr($expression, 1);
+        } else {
+            $result['operator'] = '';
+        }
+
+        foreach (explode(',', $expression) as $value) {
+            $value = trim($value);
+            $varspec = [];
+            if ($colonPos = strpos($value, ':')) {
+                $varspec['value'] = substr($value, 0, $colonPos);
+                $varspec['modifier'] = ':';
+                $varspec['position'] = (int) substr($value, $colonPos + 1);
+            } elseif (substr($value, -1) === '*') {
+                $varspec['modifier'] = '*';
+                $varspec['value'] = substr($value, 0, -1);
+            } else {
+                $varspec['value'] = (string) $value;
+                $varspec['modifier'] = '';
+            }
+            $result['values'][] = $varspec;
+        }
+
+        return $result;
+    }
+
+    /**
+     * Process an expansion
+     *
+     * @param array $matches Matches met in the preg_replace_callback
+     *
+     * @return string Returns the replacement string
+     */
+    private function expandMatch(array $matches)
+    {
+        static $rfc1738to3986 = ['+' => '%20', '%7e' => '~'];
+
+        $replacements = [];
+        $parsed = self::parseExpression($matches[1]);
+        $prefix = self::$operatorHash[$parsed['operator']]['prefix'];
+        $joiner = self::$operatorHash[$parsed['operator']]['joiner'];
+        $useQuery = self::$operatorHash[$parsed['operator']]['query'];
+
+        foreach ($parsed['values'] as $value) {
+
+            if (!isset($this->variables[$value['value']])) {
+                continue;
+            }
+
+            $variable = $this->variables[$value['value']];
+            $actuallyUseQuery = $useQuery;
+            $expanded = '';
+
+            if (is_array($variable)) {
+
+                $isAssoc = $this->isAssoc($variable);
+                $kvp = [];
+                foreach ($variable as $key => $var) {
+
+                    if ($isAssoc) {
+                        $key = rawurlencode($key);
+                        $isNestedArray = is_array($var);
+                    } else {
+                        $isNestedArray = false;
+                    }
+
+                    if (!$isNestedArray) {
+                        $var = rawurlencode($var);
+                        if ($parsed['operator'] === '+' ||
+                            $parsed['operator'] === '#'
+                        ) {
+                            $var = $this->decodeReserved($var);
+                        }
+                    }
+
+                    if ($value['modifier'] === '*') {
+                        if ($isAssoc) {
+                            if ($isNestedArray) {
+                                // Nested arrays must allow for deeply nested
+                                // structures.
+                                $var = strtr(
+                                    http_build_query([$key => $var]),
+                                    $rfc1738to3986
+                                );
+                            } else {
+                                $var = $key . '=' . $var;
+                            }
+                        } elseif ($key > 0 && $actuallyUseQuery) {
+                            $var = $value['value'] . '=' . $var;
+                        }
+                    }
+
+                    $kvp[$key] = $var;
+                }
+
+                if (empty($variable)) {
+                    $actuallyUseQuery = false;
+                } elseif ($value['modifier'] === '*') {
+                    $expanded = implode($joiner, $kvp);
+                    if ($isAssoc) {
+                        // Don't prepend the value name when using the explode
+                        // modifier with an associative array.
+                        $actuallyUseQuery = false;
+                    }
+                } else {
+                    if ($isAssoc) {
+                        // When an associative array is encountered and the
+                        // explode modifier is not set, then the result must be
+                        // a comma separated list of keys followed by their
+                        // respective values.
+                        foreach ($kvp as $k => &$v) {
+                            $v = $k . ',' . $v;
+                        }
+                    }
+                    $expanded = implode(',', $kvp);
+                }
+
+            } else {
+                if ($value['modifier'] === ':') {
+                    $variable = substr($variable, 0, $value['position']);
+                }
+                $expanded = rawurlencode($variable);
+                if ($parsed['operator'] === '+' || $parsed['operator'] === '#') {
+                    $expanded = $this->decodeReserved($expanded);
+                }
+            }
+
+            if ($actuallyUseQuery) {
+                if (!$expanded && $joiner !== '&') {
+                    $expanded = $value['value'];
+                } else {
+                    $expanded = $value['value'] . '=' . $expanded;
+                }
+            }
+
+            $replacements[] = $expanded;
+        }
+
+        $ret = implode($joiner, $replacements);
+        if ($ret && $prefix) {
+            return $prefix . $ret;
+        }
+
+        return $ret;
+    }
+
+    /**
+     * Determines if an array is associative.
+     *
+     * This makes the assumption that input arrays are sequences or hashes.
+     * This assumption is a tradeoff for accuracy in favor of speed, but it
+     * should work in almost every case where input is supplied for a URI
+     * template.
+     *
+     * @param array $array Array to check
+     *
+     * @return bool
+     */
+    private function isAssoc(array $array)
+    {
+        return $array && array_keys($array)[0] !== 0;
+    }
+
+    /**
+     * Removes percent encoding on reserved characters (used with + and #
+     * modifiers).
+     *
+     * @param string $string String to fix
+     *
+     * @return string
+     */
+    private function decodeReserved($string)
+    {
+        return str_replace(self::$delimsPct, self::$delims, $string);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/functions.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/functions.php
new file mode 100644
index 0000000..59e212e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/functions.php
@@ -0,0 +1,331 @@
+<?php
+namespace GuzzleHttp;
+
+use GuzzleHttp\Handler\CurlHandler;
+use GuzzleHttp\Handler\CurlMultiHandler;
+use GuzzleHttp\Handler\Proxy;
+use GuzzleHttp\Handler\StreamHandler;
+
+/**
+ * Expands a URI template
+ *
+ * @param string $template  URI template
+ * @param array  $variables Template variables
+ *
+ * @return string
+ */
+function uri_template($template, array $variables)
+{
+    if (extension_loaded('uri_template')) {
+        // @codeCoverageIgnoreStart
+        return \uri_template($template, $variables);
+        // @codeCoverageIgnoreEnd
+    }
+
+    static $uriTemplate;
+    if (!$uriTemplate) {
+        $uriTemplate = new UriTemplate();
+    }
+
+    return $uriTemplate->expand($template, $variables);
+}
+
+/**
+ * Debug function used to describe the provided value type and class.
+ *
+ * @param mixed $input
+ *
+ * @return string Returns a string containing the type of the variable and
+ *                if a class is provided, the class name.
+ */
+function describe_type($input)
+{
+    switch (gettype($input)) {
+        case 'object':
+            return 'object(' . get_class($input) . ')';
+        case 'array':
+            return 'array(' . count($input) . ')';
+        default:
+            ob_start();
+            var_dump($input);
+            // normalize float vs double
+            return str_replace('double(', 'float(', rtrim(ob_get_clean()));
+    }
+}
+
+/**
+ * Parses an array of header lines into an associative array of headers.
+ *
+ * @param array $lines Header lines array of strings in the following
+ *                     format: "Name: Value"
+ * @return array
+ */
+function headers_from_lines($lines)
+{
+    $headers = [];
+
+    foreach ($lines as $line) {
+        $parts = explode(':', $line, 2);
+        $headers[trim($parts[0])][] = isset($parts[1])
+            ? trim($parts[1])
+            : null;
+    }
+
+    return $headers;
+}
+
+/**
+ * Returns a debug stream based on the provided variable.
+ *
+ * @param mixed $value Optional value
+ *
+ * @return resource
+ */
+function debug_resource($value = null)
+{
+    if (is_resource($value)) {
+        return $value;
+    } elseif (defined('STDOUT')) {
+        return STDOUT;
+    }
+
+    return fopen('php://output', 'w');
+}
+
+/**
+ * Chooses and creates a default handler to use based on the environment.
+ *
+ * The returned handler is not wrapped by any default middlewares.
+ *
+ * @throws \RuntimeException if no viable Handler is available.
+ * @return callable Returns the best handler for the given system.
+ */
+function choose_handler()
+{
+    $handler = null;
+    if (function_exists('curl_multi_exec') && function_exists('curl_exec')) {
+        $handler = Proxy::wrapSync(new CurlMultiHandler(), new CurlHandler());
+    } elseif (function_exists('curl_exec')) {
+        $handler = new CurlHandler();
+    } elseif (function_exists('curl_multi_exec')) {
+        $handler = new CurlMultiHandler();
+    }
+
+    if (ini_get('allow_url_fopen')) {
+        $handler = $handler
+            ? Proxy::wrapStreaming($handler, new StreamHandler())
+            : new StreamHandler();
+    } elseif (!$handler) {
+        throw new \RuntimeException('GuzzleHttp requires cURL, the '
+            . 'allow_url_fopen ini setting, or a custom HTTP handler.');
+    }
+
+    return $handler;
+}
+
+/**
+ * Get the default User-Agent string to use with Guzzle
+ *
+ * @return string
+ */
+function default_user_agent()
+{
+    static $defaultAgent = '';
+
+    if (!$defaultAgent) {
+        $defaultAgent = 'GuzzleHttp/' . Client::VERSION;
+        if (extension_loaded('curl') && function_exists('curl_version')) {
+            $defaultAgent .= ' curl/' . \curl_version()['version'];
+        }
+        $defaultAgent .= ' PHP/' . PHP_VERSION;
+    }
+
+    return $defaultAgent;
+}
+
+/**
+ * Returns the default cacert bundle for the current system.
+ *
+ * First, the openssl.cafile and curl.cainfo php.ini settings are checked.
+ * If those settings are not configured, then the common locations for
+ * bundles found on Red Hat, CentOS, Fedora, Ubuntu, Debian, FreeBSD, OS X
+ * and Windows are checked. If any of these file locations are found on
+ * disk, they will be utilized.
+ *
+ * Note: the result of this function is cached for subsequent calls.
+ *
+ * @return string
+ * @throws \RuntimeException if no bundle can be found.
+ */
+function default_ca_bundle()
+{
+    static $cached = null;
+    static $cafiles = [
+        // Red Hat, CentOS, Fedora (provided by the ca-certificates package)
+        '/etc/pki/tls/certs/ca-bundle.crt',
+        // Ubuntu, Debian (provided by the ca-certificates package)
+        '/etc/ssl/certs/ca-certificates.crt',
+        // FreeBSD (provided by the ca_root_nss package)
+        '/usr/local/share/certs/ca-root-nss.crt',
+        // SLES 12 (provided by the ca-certificates package)
+        '/var/lib/ca-certificates/ca-bundle.pem',
+        // OS X provided by homebrew (using the default path)
+        '/usr/local/etc/openssl/cert.pem',
+        // Google app engine
+        '/etc/ca-certificates.crt',
+        // Windows?
+        'C:\\windows\\system32\\curl-ca-bundle.crt',
+        'C:\\windows\\curl-ca-bundle.crt',
+    ];
+
+    if ($cached) {
+        return $cached;
+    }
+
+    if ($ca = ini_get('openssl.cafile')) {
+        return $cached = $ca;
+    }
+
+    if ($ca = ini_get('curl.cainfo')) {
+        return $cached = $ca;
+    }
+
+    foreach ($cafiles as $filename) {
+        if (file_exists($filename)) {
+            return $cached = $filename;
+        }
+    }
+
+    throw new \RuntimeException(<<< EOT
+No system CA bundle could be found in any of the the common system locations.
+PHP versions earlier than 5.6 are not properly configured to use the system's
+CA bundle by default. In order to verify peer certificates, you will need to
+supply the path on disk to a certificate bundle to the 'verify' request
+option: http://docs.guzzlephp.org/en/latest/clients.html#verify. If you do not
+need a specific certificate bundle, then Mozilla provides a commonly used CA
+bundle which can be downloaded here (provided by the maintainer of cURL):
+https://raw.githubusercontent.com/bagder/ca-bundle/master/ca-bundle.crt. Once
+you have a CA bundle available on disk, you can set the 'openssl.cafile' PHP
+ini setting to point to the path to the file, allowing you to omit the 'verify'
+request option. See http://curl.haxx.se/docs/sslcerts.html for more
+information.
+EOT
+    );
+}
+
+/**
+ * Creates an associative array of lowercase header names to the actual
+ * header casing.
+ *
+ * @param array $headers
+ *
+ * @return array
+ */
+function normalize_header_keys(array $headers)
+{
+    $result = [];
+    foreach (array_keys($headers) as $key) {
+        $result[strtolower($key)] = $key;
+    }
+
+    return $result;
+}
+
+/**
+ * Returns true if the provided host matches any of the no proxy areas.
+ *
+ * This method will strip a port from the host if it is present. Each pattern
+ * can be matched with an exact match (e.g., "foo.com" == "foo.com") or a
+ * partial match: (e.g., "foo.com" == "baz.foo.com" and ".foo.com" ==
+ * "baz.foo.com", but ".foo.com" != "foo.com").
+ *
+ * Areas are matched in the following cases:
+ * 1. "*" (without quotes) always matches any hosts.
+ * 2. An exact match.
+ * 3. The area starts with "." and the area is the last part of the host. e.g.
+ *    '.mit.edu' will match any host that ends with '.mit.edu'.
+ *
+ * @param string $host         Host to check against the patterns.
+ * @param array  $noProxyArray An array of host patterns.
+ *
+ * @return bool
+ */
+function is_host_in_noproxy($host, array $noProxyArray)
+{
+    if (strlen($host) === 0) {
+        throw new \InvalidArgumentException('Empty host provided');
+    }
+
+    // Strip port if present.
+    if (strpos($host, ':')) {
+        $host = explode($host, ':', 2)[0];
+    }
+
+    foreach ($noProxyArray as $area) {
+        // Always match on wildcards.
+        if ($area === '*') {
+            return true;
+        } elseif (empty($area)) {
+            // Don't match on empty values.
+            continue;
+        } elseif ($area === $host) {
+            // Exact matches.
+            return true;
+        } else {
+            // Special match if the area when prefixed with ".". Remove any
+            // existing leading "." and add a new leading ".".
+            $area = '.' . ltrim($area, '.');
+            if (substr($host, -(strlen($area))) === $area) {
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+/**
+ * Wrapper for json_decode that throws when an error occurs.
+ *
+ * @param string $json    JSON data to parse
+ * @param bool $assoc     When true, returned objects will be converted
+ *                        into associative arrays.
+ * @param int    $depth   User specified recursion depth.
+ * @param int    $options Bitmask of JSON decode options.
+ *
+ * @return mixed
+ * @throws \InvalidArgumentException if the JSON cannot be decoded.
+ * @link http://www.php.net/manual/en/function.json-decode.php
+ */
+function json_decode($json, $assoc = false, $depth = 512, $options = 0)
+{
+    $data = \json_decode($json, $assoc, $depth, $options);
+    if (JSON_ERROR_NONE !== json_last_error()) {
+        throw new \InvalidArgumentException(
+            'json_decode error: ' . json_last_error_msg());
+    }
+
+    return $data;
+}
+
+/**
+ * Wrapper for JSON encoding that throws when an error occurs.
+ *
+ * @param mixed $value   The value being encoded
+ * @param int    $options JSON encode option bitmask
+ * @param int    $depth   Set the maximum depth. Must be greater than zero.
+ *
+ * @return string
+ * @throws \InvalidArgumentException if the JSON cannot be encoded.
+ * @link http://www.php.net/manual/en/function.json-encode.php
+ */
+function json_encode($value, $options = 0, $depth = 512)
+{
+    $json = \json_encode($value, $options, $depth);
+    if (JSON_ERROR_NONE !== json_last_error()) {
+        throw new \InvalidArgumentException(
+            'json_encode error: ' . json_last_error_msg());
+    }
+
+    return $json;
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/functions_include.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/functions_include.php
new file mode 100644
index 0000000..a93393a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/guzzle/src/functions_include.php
@@ -0,0 +1,6 @@
+<?php
+
+// Don't redefine the functions if included multiple times.
+if (!function_exists('GuzzleHttp\uri_template')) {
+    require __DIR__ . '/functions.php';
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/CHANGELOG.md b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/CHANGELOG.md
new file mode 100644
index 0000000..551929f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/CHANGELOG.md
@@ -0,0 +1,65 @@
+# CHANGELOG
+
+
+## 1.3.1 - 2016-12-20
+
+### Fixed
+
+- `wait()` foreign promise compatibility
+
+
+## 1.3.0 - 2016-11-18
+
+### Added
+
+- Adds support for custom task queues.
+
+### Fixed
+
+- Fixed coroutine promise memory leak.
+
+
+## 1.2.0 - 2016-05-18
+
+### Changed
+
+- Update to now catch `\Throwable` on PHP 7+
+
+
+## 1.1.0 - 2016-03-07
+
+### Changed
+
+- Update EachPromise to prevent recurring on a iterator when advancing, as this
+  could trigger fatal generator errors.
+- Update Promise to allow recursive waiting without unwrapping exceptions.
+
+
+## 1.0.3 - 2015-10-15
+
+### Changed
+
+- Update EachPromise to immediately resolve when the underlying promise iterator
+  is empty. Previously, such a promise would throw an exception when its `wait`
+  function was called.
+
+
+## 1.0.2 - 2015-05-15
+
+### Changed
+
+- Conditionally require functions.php.
+
+
+## 1.0.1 - 2015-06-24
+
+### Changed
+
+- Updating EachPromise to call next on the underlying promise iterator as late
+  as possible to ensure that generators that generate new requests based on
+  callbacks are not iterated until after callbacks are invoked.
+
+
+## 1.0.0 - 2015-05-12
+
+- Initial release
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/LICENSE
new file mode 100644
index 0000000..67f91a1
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2015-2016 Michael Dowling, https://github.com/mtdowling <mtdowling@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/Makefile b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/Makefile
new file mode 100644
index 0000000..8d5b3ef
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/Makefile
@@ -0,0 +1,13 @@
+all: clean test
+
+test:
+	vendor/bin/phpunit
+
+coverage:
+	vendor/bin/phpunit --coverage-html=artifacts/coverage
+
+view-coverage:
+	open artifacts/coverage/index.html
+
+clean:
+	rm -rf artifacts/*
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/README.md b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/README.md
new file mode 100644
index 0000000..7b607e2
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/README.md
@@ -0,0 +1,504 @@
+# Guzzle Promises
+
+[Promises/A+](https://promisesaplus.com/) implementation that handles promise
+chaining and resolution iteratively, allowing for "infinite" promise chaining
+while keeping the stack size constant. Read [this blog post](https://blog.domenic.me/youre-missing-the-point-of-promises/)
+for a general introduction to promises.
+
+- [Features](#features)
+- [Quick start](#quick-start)
+- [Synchronous wait](#synchronous-wait)
+- [Cancellation](#cancellation)
+- [API](#api)
+  - [Promise](#promise)
+  - [FulfilledPromise](#fulfilledpromise)
+  - [RejectedPromise](#rejectedpromise)
+- [Promise interop](#promise-interop)
+- [Implementation notes](#implementation-notes)
+
+
+# Features
+
+- [Promises/A+](https://promisesaplus.com/) implementation.
+- Promise resolution and chaining is handled iteratively, allowing for
+  "infinite" promise chaining.
+- Promises have a synchronous `wait` method.
+- Promises can be cancelled.
+- Works with any object that has a `then` function.
+- C# style async/await coroutine promises using
+  `GuzzleHttp\Promise\coroutine()`.
+
+
+# Quick start
+
+A *promise* represents the eventual result of an asynchronous operation. The
+primary way of interacting with a promise is through its `then` method, which
+registers callbacks to receive either a promise's eventual value or the reason
+why the promise cannot be fulfilled.
+
+
+## Callbacks
+
+Callbacks are registered with the `then` method by providing an optional 
+`$onFulfilled` followed by an optional `$onRejected` function.
+
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise->then(
+    // $onFulfilled
+    function ($value) {
+        echo 'The promise was fulfilled.';
+    },
+    // $onRejected
+    function ($reason) {
+        echo 'The promise was rejected.';
+    }
+);
+```
+
+*Resolving* a promise means that you either fulfill a promise with a *value* or
+reject a promise with a *reason*. Resolving a promises triggers callbacks
+registered with the promises's `then` method. These callbacks are triggered
+only once and in the order in which they were added.
+
+
+## Resolving a promise
+
+Promises are fulfilled using the `resolve($value)` method. Resolving a promise
+with any value other than a `GuzzleHttp\Promise\RejectedPromise` will trigger
+all of the onFulfilled callbacks (resolving a promise with a rejected promise
+will reject the promise and trigger the `$onRejected` callbacks).
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise
+    ->then(function ($value) {
+        // Return a value and don't break the chain
+        return "Hello, " . $value;
+    })
+    // This then is executed after the first then and receives the value
+    // returned from the first then.
+    ->then(function ($value) {
+        echo $value;
+    });
+
+// Resolving the promise triggers the $onFulfilled callbacks and outputs
+// "Hello, reader".
+$promise->resolve('reader.');
+```
+
+
+## Promise forwarding
+
+Promises can be chained one after the other. Each then in the chain is a new
+promise. The return value of a promise is what's forwarded to the next
+promise in the chain. Returning a promise in a `then` callback will cause the
+subsequent promises in the chain to only be fulfilled when the returned promise
+has been fulfilled. The next promise in the chain will be invoked with the
+resolved value of the promise.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$nextPromise = new Promise();
+
+$promise
+    ->then(function ($value) use ($nextPromise) {
+        echo $value;
+        return $nextPromise;
+    })
+    ->then(function ($value) {
+        echo $value;
+    });
+
+// Triggers the first callback and outputs "A"
+$promise->resolve('A');
+// Triggers the second callback and outputs "B"
+$nextPromise->resolve('B');
+```
+
+## Promise rejection
+
+When a promise is rejected, the `$onRejected` callbacks are invoked with the
+rejection reason.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise->then(null, function ($reason) {
+    echo $reason;
+});
+
+$promise->reject('Error!');
+// Outputs "Error!"
+```
+
+## Rejection forwarding
+
+If an exception is thrown in an `$onRejected` callback, subsequent
+`$onRejected` callbacks are invoked with the thrown exception as the reason.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise();
+$promise->then(null, function ($reason) {
+    throw new \Exception($reason);
+})->then(null, function ($reason) {
+    assert($reason->getMessage() === 'Error!');
+});
+
+$promise->reject('Error!');
+```
+
+You can also forward a rejection down the promise chain by returning a
+`GuzzleHttp\Promise\RejectedPromise` in either an `$onFulfilled` or
+`$onRejected` callback.
+
+```php
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\RejectedPromise;
+
+$promise = new Promise();
+$promise->then(null, function ($reason) {
+    return new RejectedPromise($reason);
+})->then(null, function ($reason) {
+    assert($reason === 'Error!');
+});
+
+$promise->reject('Error!');
+```
+
+If an exception is not thrown in a `$onRejected` callback and the callback
+does not return a rejected promise, downstream `$onFulfilled` callbacks are
+invoked using the value returned from the `$onRejected` callback.
+
+```php
+use GuzzleHttp\Promise\Promise;
+use GuzzleHttp\Promise\RejectedPromise;
+
+$promise = new Promise();
+$promise
+    ->then(null, function ($reason) {
+        return "It's ok";
+    })
+    ->then(function ($value) {
+        assert($value === "It's ok");
+    });
+
+$promise->reject('Error!');
+```
+
+# Synchronous wait
+
+You can synchronously force promises to complete using a promise's `wait`
+method. When creating a promise, you can provide a wait function that is used
+to synchronously force a promise to complete. When a wait function is invoked
+it is expected to deliver a value to the promise or reject the promise. If the
+wait function does not deliver a value, then an exception is thrown. The wait
+function provided to a promise constructor is invoked when the `wait` function
+of the promise is called.
+
+```php
+$promise = new Promise(function () use (&$promise) {
+    $promise->resolve('foo');
+});
+
+// Calling wait will return the value of the promise.
+echo $promise->wait(); // outputs "foo"
+```
+
+If an exception is encountered while invoking the wait function of a promise,
+the promise is rejected with the exception and the exception is thrown.
+
+```php
+$promise = new Promise(function () use (&$promise) {
+    throw new \Exception('foo');
+});
+
+$promise->wait(); // throws the exception.
+```
+
+Calling `wait` on a promise that has been fulfilled will not trigger the wait
+function. It will simply return the previously resolved value.
+
+```php
+$promise = new Promise(function () { die('this is not called!'); });
+$promise->resolve('foo');
+echo $promise->wait(); // outputs "foo"
+```
+
+Calling `wait` on a promise that has been rejected will throw an exception. If
+the rejection reason is an instance of `\Exception` the reason is thrown.
+Otherwise, a `GuzzleHttp\Promise\RejectionException` is thrown and the reason
+can be obtained by calling the `getReason` method of the exception.
+
+```php
+$promise = new Promise();
+$promise->reject('foo');
+$promise->wait();
+```
+
+> PHP Fatal error:  Uncaught exception 'GuzzleHttp\Promise\RejectionException' with message 'The promise was rejected with value: foo'
+
+
+## Unwrapping a promise
+
+When synchronously waiting on a promise, you are joining the state of the
+promise into the current state of execution (i.e., return the value of the
+promise if it was fulfilled or throw an exception if it was rejected). This is
+called "unwrapping" the promise. Waiting on a promise will by default unwrap
+the promise state.
+
+You can force a promise to resolve and *not* unwrap the state of the promise
+by passing `false` to the first argument of the `wait` function:
+
+```php
+$promise = new Promise();
+$promise->reject('foo');
+// This will not throw an exception. It simply ensures the promise has
+// been resolved.
+$promise->wait(false);
+```
+
+When unwrapping a promise, the resolved value of the promise will be waited
+upon until the unwrapped value is not a promise. This means that if you resolve
+promise A with a promise B and unwrap promise A, the value returned by the
+wait function will be the value delivered to promise B.
+
+**Note**: when you do not unwrap the promise, no value is returned.
+
+
+# Cancellation
+
+You can cancel a promise that has not yet been fulfilled using the `cancel()`
+method of a promise. When creating a promise you can provide an optional
+cancel function that when invoked cancels the action of computing a resolution
+of the promise.
+
+
+# API
+
+
+## Promise
+
+When creating a promise object, you can provide an optional `$waitFn` and
+`$cancelFn`. `$waitFn` is a function that is invoked with no arguments and is
+expected to resolve the promise. `$cancelFn` is a function with no arguments
+that is expected to cancel the computation of a promise. It is invoked when the
+`cancel()` method of a promise is called.
+
+```php
+use GuzzleHttp\Promise\Promise;
+
+$promise = new Promise(
+    function () use (&$promise) {
+        $promise->resolve('waited');
+    },
+    function () {
+        // do something that will cancel the promise computation (e.g., close
+        // a socket, cancel a database query, etc...)
+    }
+);
+
+assert('waited' === $promise->wait());
+```
+
+A promise has the following methods:
+
+- `then(callable $onFulfilled, callable $onRejected) : PromiseInterface`
+  
+  Appends fulfillment and rejection handlers to the promise, and returns a new promise resolving to the return value of the called handler.
+
+- `otherwise(callable $onRejected) : PromiseInterface`
+  
+  Appends a rejection handler callback to the promise, and returns a new promise resolving to the return value of the callback if it is called, or to its original fulfillment value if the promise is instead fulfilled.
+
+- `wait($unwrap = true) : mixed`
+
+  Synchronously waits on the promise to complete.
+  
+  `$unwrap` controls whether or not the value of the promise is returned for a
+  fulfilled promise or if an exception is thrown if the promise is rejected.
+  This is set to `true` by default.
+
+- `cancel()`
+
+  Attempts to cancel the promise if possible. The promise being cancelled and
+  the parent most ancestor that has not yet been resolved will also be
+  cancelled. Any promises waiting on the cancelled promise to resolve will also
+  be cancelled.
+
+- `getState() : string`
+
+  Returns the state of the promise. One of `pending`, `fulfilled`, or
+  `rejected`.
+
+- `resolve($value)`
+
+  Fulfills the promise with the given `$value`.
+
+- `reject($reason)`
+
+  Rejects the promise with the given `$reason`.
+
+
+## FulfilledPromise
+
+A fulfilled promise can be created to represent a promise that has been
+fulfilled.
+
+```php
+use GuzzleHttp\Promise\FulfilledPromise;
+
+$promise = new FulfilledPromise('value');
+
+// Fulfilled callbacks are immediately invoked.
+$promise->then(function ($value) {
+    echo $value;
+});
+```
+
+
+## RejectedPromise
+
+A rejected promise can be created to represent a promise that has been
+rejected.
+
+```php
+use GuzzleHttp\Promise\RejectedPromise;
+
+$promise = new RejectedPromise('Error');
+
+// Rejected callbacks are immediately invoked.
+$promise->then(null, function ($reason) {
+    echo $reason;
+});
+```
+
+
+# Promise interop
+
+This library works with foreign promises that have a `then` method. This means
+you can use Guzzle promises with [React promises](https://github.com/reactphp/promise)
+for example. When a foreign promise is returned inside of a then method
+callback, promise resolution will occur recursively.
+
+```php
+// Create a React promise
+$deferred = new React\Promise\Deferred();
+$reactPromise = $deferred->promise();
+
+// Create a Guzzle promise that is fulfilled with a React promise.
+$guzzlePromise = new \GuzzleHttp\Promise\Promise();
+$guzzlePromise->then(function ($value) use ($reactPromise) {
+    // Do something something with the value...
+    // Return the React promise
+    return $reactPromise;
+});
+```
+
+Please note that wait and cancel chaining is no longer possible when forwarding
+a foreign promise. You will need to wrap a third-party promise with a Guzzle
+promise in order to utilize wait and cancel functions with foreign promises.
+
+
+## Event Loop Integration
+
+In order to keep the stack size constant, Guzzle promises are resolved
+asynchronously using a task queue. When waiting on promises synchronously, the
+task queue will be automatically run to ensure that the blocking promise and
+any forwarded promises are resolved. When using promises asynchronously in an
+event loop, you will need to run the task queue on each tick of the loop. If
+you do not run the task queue, then promises will not be resolved.
+
+You can run the task queue using the `run()` method of the global task queue
+instance.
+
+```php
+// Get the global task queue
+$queue = \GuzzleHttp\Promise\queue();
+$queue->run();
+```
+
+For example, you could use Guzzle promises with React using a periodic timer:
+
+```php
+$loop = React\EventLoop\Factory::create();
+$loop->addPeriodicTimer(0, [$queue, 'run']);
+```
+
+*TODO*: Perhaps adding a `futureTick()` on each tick would be faster?
+
+
+# Implementation notes
+
+
+## Promise resolution and chaining is handled iteratively
+
+By shuffling pending handlers from one owner to another, promises are
+resolved iteratively, allowing for "infinite" then chaining.
+
+```php
+<?php
+require 'vendor/autoload.php';
+
+use GuzzleHttp\Promise\Promise;
+
+$parent = new Promise();
+$p = $parent;
+
+for ($i = 0; $i < 1000; $i++) {
+    $p = $p->then(function ($v) {
+        // The stack size remains constant (a good thing)
+        echo xdebug_get_stack_depth() . ', ';
+        return $v + 1;
+    });
+}
+
+$parent->resolve(0);
+var_dump($p->wait()); // int(1000)
+
+```
+
+When a promise is fulfilled or rejected with a non-promise value, the promise
+then takes ownership of the handlers of each child promise and delivers values
+down the chain without using recursion.
+
+When a promise is resolved with another promise, the original promise transfers
+all of its pending handlers to the new promise. When the new promise is
+eventually resolved, all of the pending handlers are delivered the forwarded
+value.
+
+
+## A promise is the deferred.
+
+Some promise libraries implement promises using a deferred object to represent
+a computation and a promise object to represent the delivery of the result of
+the computation. This is a nice separation of computation and delivery because
+consumers of the promise cannot modify the value that will be eventually
+delivered.
+
+One side effect of being able to implement promise resolution and chaining
+iteratively is that you need to be able for one promise to reach into the state
+of another promise to shuffle around ownership of handlers. In order to achieve
+this without making the handlers of a promise publicly mutable, a promise is
+also the deferred value, allowing promises of the same parent class to reach
+into and modify the private properties of promises of the same type. While this
+does allow consumers of the value to modify the resolution or rejection of the
+deferred, it is a small price to pay for keeping the stack size constant.
+
+```php
+$promise = new Promise();
+$promise->then(function ($value) { echo $value; });
+// The promise is the deferred value, so you can deliver a value to it.
+$promise->resolve('foo');
+// prints "foo"
+```
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/composer.json b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/composer.json
new file mode 100644
index 0000000..ec41a61
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/composer.json
@@ -0,0 +1,34 @@
+{
+    "name": "guzzlehttp/promises",
+    "description": "Guzzle promises library",
+    "keywords": ["promise"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Michael Dowling",
+            "email": "mtdowling@gmail.com",
+            "homepage": "https://github.com/mtdowling"
+        }
+    ],
+    "require": {
+        "php": ">=5.5.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^4.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "GuzzleHttp\\Promise\\": "src/"
+        },
+        "files": ["src/functions_include.php"]
+    },
+    "scripts": {
+        "test": "vendor/bin/phpunit",
+        "test-ci": "vendor/bin/phpunit --coverage-text"
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.4-dev"
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/AggregateException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/AggregateException.php
new file mode 100644
index 0000000..6a5690c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/AggregateException.php
@@ -0,0 +1,16 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * Exception thrown when too many errors occur in the some() or any() methods.
+ */
+class AggregateException extends RejectionException
+{
+    public function __construct($msg, array $reasons)
+    {
+        parent::__construct(
+            $reasons,
+            sprintf('%s; %d rejected promises', $msg, count($reasons))
+        );
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/CancellationException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/CancellationException.php
new file mode 100644
index 0000000..cb360b8
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/CancellationException.php
@@ -0,0 +1,9 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * Exception that is set as the reason for a promise that has been cancelled.
+ */
+class CancellationException extends RejectionException
+{
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/Coroutine.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/Coroutine.php
new file mode 100644
index 0000000..6aa0958
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/Coroutine.php
@@ -0,0 +1,151 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+use Exception;
+use Generator;
+use Throwable;
+
+/**
+ * Creates a promise that is resolved using a generator that yields values or
+ * promises (somewhat similar to C#'s async keyword).
+ *
+ * When called, the coroutine function will start an instance of the generator
+ * and returns a promise that is fulfilled with its final yielded value.
+ *
+ * Control is returned back to the generator when the yielded promise settles.
+ * This can lead to less verbose code when doing lots of sequential async calls
+ * with minimal processing in between.
+ *
+ *     use GuzzleHttp\Promise;
+ *
+ *     function createPromise($value) {
+ *         return new Promise\FulfilledPromise($value);
+ *     }
+ *
+ *     $promise = Promise\coroutine(function () {
+ *         $value = (yield createPromise('a'));
+ *         try {
+ *             $value = (yield createPromise($value . 'b'));
+ *         } catch (\Exception $e) {
+ *             // The promise was rejected.
+ *         }
+ *         yield $value . 'c';
+ *     });
+ *
+ *     // Outputs "abc"
+ *     $promise->then(function ($v) { echo $v; });
+ *
+ * @param callable $generatorFn Generator function to wrap into a promise.
+ *
+ * @return Promise
+ * @link https://github.com/petkaantonov/bluebird/blob/master/API.md#generators inspiration
+ */
+final class Coroutine implements PromiseInterface
+{
+    /**
+     * @var PromiseInterface|null
+     */
+    private $currentPromise;
+
+    /**
+     * @var Generator
+     */
+    private $generator;
+
+    /**
+     * @var Promise
+     */
+    private $result;
+
+    public function __construct(callable $generatorFn)
+    {
+        $this->generator = $generatorFn();
+        $this->result = new Promise(function () {
+            while (isset($this->currentPromise)) {
+                $this->currentPromise->wait();
+            }
+        });
+        $this->nextCoroutine($this->generator->current());
+    }
+
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        return $this->result->then($onFulfilled, $onRejected);
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->result->otherwise($onRejected);
+    }
+
+    public function wait($unwrap = true)
+    {
+        return $this->result->wait($unwrap);
+    }
+
+    public function getState()
+    {
+        return $this->result->getState();
+    }
+
+    public function resolve($value)
+    {
+        $this->result->resolve($value);
+    }
+
+    public function reject($reason)
+    {
+        $this->result->reject($reason);
+    }
+
+    public function cancel()
+    {
+        $this->currentPromise->cancel();
+        $this->result->cancel();
+    }
+
+    private function nextCoroutine($yielded)
+    {
+        $this->currentPromise = promise_for($yielded)
+            ->then([$this, '_handleSuccess'], [$this, '_handleFailure']);
+    }
+
+    /**
+     * @internal
+     */
+    public function _handleSuccess($value)
+    {
+        unset($this->currentPromise);
+        try {
+            $next = $this->generator->send($value);
+            if ($this->generator->valid()) {
+                $this->nextCoroutine($next);
+            } else {
+                $this->result->resolve($value);
+            }
+        } catch (Exception $exception) {
+            $this->result->reject($exception);
+        } catch (Throwable $throwable) {
+            $this->result->reject($throwable);
+        }
+    }
+
+    /**
+     * @internal
+     */
+    public function _handleFailure($reason)
+    {
+        unset($this->currentPromise);
+        try {
+            $nextYield = $this->generator->throw(exception_for($reason));
+            // The throw was caught, so keep iterating on the coroutine
+            $this->nextCoroutine($nextYield);
+        } catch (Exception $exception) {
+            $this->result->reject($exception);
+        } catch (Throwable $throwable) {
+            $this->result->reject($throwable);
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/EachPromise.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/EachPromise.php
new file mode 100644
index 0000000..d0ddf60
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/EachPromise.php
@@ -0,0 +1,229 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * Represents a promise that iterates over many promises and invokes
+ * side-effect functions in the process.
+ */
+class EachPromise implements PromisorInterface
+{
+    private $pending = [];
+
+    /** @var \Iterator */
+    private $iterable;
+
+    /** @var callable|int */
+    private $concurrency;
+
+    /** @var callable */
+    private $onFulfilled;
+
+    /** @var callable */
+    private $onRejected;
+
+    /** @var Promise */
+    private $aggregate;
+
+    /** @var bool */
+    private $mutex;
+
+    /**
+     * Configuration hash can include the following key value pairs:
+     *
+     * - fulfilled: (callable) Invoked when a promise fulfills. The function
+     *   is invoked with three arguments: the fulfillment value, the index
+     *   position from the iterable list of the promise, and the aggregate
+     *   promise that manages all of the promises. The aggregate promise may
+     *   be resolved from within the callback to short-circuit the promise.
+     * - rejected: (callable) Invoked when a promise is rejected. The
+     *   function is invoked with three arguments: the rejection reason, the
+     *   index position from the iterable list of the promise, and the
+     *   aggregate promise that manages all of the promises. The aggregate
+     *   promise may be resolved from within the callback to short-circuit
+     *   the promise.
+     * - concurrency: (integer) Pass this configuration option to limit the
+     *   allowed number of outstanding concurrently executing promises,
+     *   creating a capped pool of promises. There is no limit by default.
+     *
+     * @param mixed    $iterable Promises or values to iterate.
+     * @param array    $config   Configuration options
+     */
+    public function __construct($iterable, array $config = [])
+    {
+        $this->iterable = iter_for($iterable);
+
+        if (isset($config['concurrency'])) {
+            $this->concurrency = $config['concurrency'];
+        }
+
+        if (isset($config['fulfilled'])) {
+            $this->onFulfilled = $config['fulfilled'];
+        }
+
+        if (isset($config['rejected'])) {
+            $this->onRejected = $config['rejected'];
+        }
+    }
+
+    public function promise()
+    {
+        if ($this->aggregate) {
+            return $this->aggregate;
+        }
+
+        try {
+            $this->createPromise();
+            $this->iterable->rewind();
+            $this->refillPending();
+        } catch (\Throwable $e) {
+            $this->aggregate->reject($e);
+        } catch (\Exception $e) {
+            $this->aggregate->reject($e);
+        }
+
+        return $this->aggregate;
+    }
+
+    private function createPromise()
+    {
+        $this->mutex = false;
+        $this->aggregate = new Promise(function () {
+            reset($this->pending);
+            if (empty($this->pending) && !$this->iterable->valid()) {
+                $this->aggregate->resolve(null);
+                return;
+            }
+
+            // Consume a potentially fluctuating list of promises while
+            // ensuring that indexes are maintained (precluding array_shift).
+            while ($promise = current($this->pending)) {
+                next($this->pending);
+                $promise->wait();
+                if ($this->aggregate->getState() !== PromiseInterface::PENDING) {
+                    return;
+                }
+            }
+        });
+
+        // Clear the references when the promise is resolved.
+        $clearFn = function () {
+            $this->iterable = $this->concurrency = $this->pending = null;
+            $this->onFulfilled = $this->onRejected = null;
+        };
+
+        $this->aggregate->then($clearFn, $clearFn);
+    }
+
+    private function refillPending()
+    {
+        if (!$this->concurrency) {
+            // Add all pending promises.
+            while ($this->addPending() && $this->advanceIterator());
+            return;
+        }
+
+        // Add only up to N pending promises.
+        $concurrency = is_callable($this->concurrency)
+            ? call_user_func($this->concurrency, count($this->pending))
+            : $this->concurrency;
+        $concurrency = max($concurrency - count($this->pending), 0);
+        // Concurrency may be set to 0 to disallow new promises.
+        if (!$concurrency) {
+            return;
+        }
+        // Add the first pending promise.
+        $this->addPending();
+        // Note this is special handling for concurrency=1 so that we do
+        // not advance the iterator after adding the first promise. This
+        // helps work around issues with generators that might not have the
+        // next value to yield until promise callbacks are called.
+        while (--$concurrency
+            && $this->advanceIterator()
+            && $this->addPending());
+    }
+
+    private function addPending()
+    {
+        if (!$this->iterable || !$this->iterable->valid()) {
+            return false;
+        }
+
+        $promise = promise_for($this->iterable->current());
+        $idx = $this->iterable->key();
+
+        $this->pending[$idx] = $promise->then(
+            function ($value) use ($idx) {
+                if ($this->onFulfilled) {
+                    call_user_func(
+                        $this->onFulfilled, $value, $idx, $this->aggregate
+                    );
+                }
+                $this->step($idx);
+            },
+            function ($reason) use ($idx) {
+                if ($this->onRejected) {
+                    call_user_func(
+                        $this->onRejected, $reason, $idx, $this->aggregate
+                    );
+                }
+                $this->step($idx);
+            }
+        );
+
+        return true;
+    }
+
+    private function advanceIterator()
+    {
+        // Place a lock on the iterator so that we ensure to not recurse,
+        // preventing fatal generator errors.
+        if ($this->mutex) {
+            return false;
+        }
+
+        $this->mutex = true;
+
+        try {
+            $this->iterable->next();
+            $this->mutex = false;
+            return true;
+        } catch (\Throwable $e) {
+            $this->aggregate->reject($e);
+            $this->mutex = false;
+            return false;
+        } catch (\Exception $e) {
+            $this->aggregate->reject($e);
+            $this->mutex = false;
+            return false;
+        }
+    }
+
+    private function step($idx)
+    {
+        // If the promise was already resolved, then ignore this step.
+        if ($this->aggregate->getState() !== PromiseInterface::PENDING) {
+            return;
+        }
+
+        unset($this->pending[$idx]);
+
+        // Only refill pending promises if we are not locked, preventing the
+        // EachPromise to recursively invoke the provided iterator, which
+        // cause a fatal error: "Cannot resume an already running generator"
+        if ($this->advanceIterator() && !$this->checkIfFinished()) {
+            // Add more pending promises if possible.
+            $this->refillPending();
+        }
+    }
+
+    private function checkIfFinished()
+    {
+        if (!$this->pending && !$this->iterable->valid()) {
+            // Resolve the promise if there's nothing left to do.
+            $this->aggregate->resolve(null);
+            return true;
+        }
+
+        return false;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/FulfilledPromise.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/FulfilledPromise.php
new file mode 100644
index 0000000..dbbeeb9
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/FulfilledPromise.php
@@ -0,0 +1,82 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * A promise that has been fulfilled.
+ *
+ * Thenning off of this promise will invoke the onFulfilled callback
+ * immediately and ignore other callbacks.
+ */
+class FulfilledPromise implements PromiseInterface
+{
+    private $value;
+
+    public function __construct($value)
+    {
+        if (method_exists($value, 'then')) {
+            throw new \InvalidArgumentException(
+                'You cannot create a FulfilledPromise with a promise.');
+        }
+
+        $this->value = $value;
+    }
+
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        // Return itself if there is no onFulfilled function.
+        if (!$onFulfilled) {
+            return $this;
+        }
+
+        $queue = queue();
+        $p = new Promise([$queue, 'run']);
+        $value = $this->value;
+        $queue->add(static function () use ($p, $value, $onFulfilled) {
+            if ($p->getState() === self::PENDING) {
+                try {
+                    $p->resolve($onFulfilled($value));
+                } catch (\Throwable $e) {
+                    $p->reject($e);
+                } catch (\Exception $e) {
+                    $p->reject($e);
+                }
+            }
+        });
+
+        return $p;
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->then(null, $onRejected);
+    }
+
+    public function wait($unwrap = true, $defaultDelivery = null)
+    {
+        return $unwrap ? $this->value : null;
+    }
+
+    public function getState()
+    {
+        return self::FULFILLED;
+    }
+
+    public function resolve($value)
+    {
+        if ($value !== $this->value) {
+            throw new \LogicException("Cannot resolve a fulfilled promise");
+        }
+    }
+
+    public function reject($reason)
+    {
+        throw new \LogicException("Cannot reject a fulfilled promise");
+    }
+
+    public function cancel()
+    {
+        // pass
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/Promise.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/Promise.php
new file mode 100644
index 0000000..844ada0
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/Promise.php
@@ -0,0 +1,280 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * Promises/A+ implementation that avoids recursion when possible.
+ *
+ * @link https://promisesaplus.com/
+ */
+class Promise implements PromiseInterface
+{
+    private $state = self::PENDING;
+    private $result;
+    private $cancelFn;
+    private $waitFn;
+    private $waitList;
+    private $handlers = [];
+
+    /**
+     * @param callable $waitFn   Fn that when invoked resolves the promise.
+     * @param callable $cancelFn Fn that when invoked cancels the promise.
+     */
+    public function __construct(
+        callable $waitFn = null,
+        callable $cancelFn = null
+    ) {
+        $this->waitFn = $waitFn;
+        $this->cancelFn = $cancelFn;
+    }
+
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        if ($this->state === self::PENDING) {
+            $p = new Promise(null, [$this, 'cancel']);
+            $this->handlers[] = [$p, $onFulfilled, $onRejected];
+            $p->waitList = $this->waitList;
+            $p->waitList[] = $this;
+            return $p;
+        }
+
+        // Return a fulfilled promise and immediately invoke any callbacks.
+        if ($this->state === self::FULFILLED) {
+            return $onFulfilled
+                ? promise_for($this->result)->then($onFulfilled)
+                : promise_for($this->result);
+        }
+
+        // It's either cancelled or rejected, so return a rejected promise
+        // and immediately invoke any callbacks.
+        $rejection = rejection_for($this->result);
+        return $onRejected ? $rejection->then(null, $onRejected) : $rejection;
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->then(null, $onRejected);
+    }
+
+    public function wait($unwrap = true)
+    {
+        $this->waitIfPending();
+
+        $inner = $this->result instanceof PromiseInterface
+            ? $this->result->wait($unwrap)
+            : $this->result;
+
+        if ($unwrap) {
+            if ($this->result instanceof PromiseInterface
+                || $this->state === self::FULFILLED
+            ) {
+                return $inner;
+            } else {
+                // It's rejected so "unwrap" and throw an exception.
+                throw exception_for($inner);
+            }
+        }
+    }
+
+    public function getState()
+    {
+        return $this->state;
+    }
+
+    public function cancel()
+    {
+        if ($this->state !== self::PENDING) {
+            return;
+        }
+
+        $this->waitFn = $this->waitList = null;
+
+        if ($this->cancelFn) {
+            $fn = $this->cancelFn;
+            $this->cancelFn = null;
+            try {
+                $fn();
+            } catch (\Throwable $e) {
+                $this->reject($e);
+            } catch (\Exception $e) {
+                $this->reject($e);
+            }
+        }
+
+        // Reject the promise only if it wasn't rejected in a then callback.
+        if ($this->state === self::PENDING) {
+            $this->reject(new CancellationException('Promise has been cancelled'));
+        }
+    }
+
+    public function resolve($value)
+    {
+        $this->settle(self::FULFILLED, $value);
+    }
+
+    public function reject($reason)
+    {
+        $this->settle(self::REJECTED, $reason);
+    }
+
+    private function settle($state, $value)
+    {
+        if ($this->state !== self::PENDING) {
+            // Ignore calls with the same resolution.
+            if ($state === $this->state && $value === $this->result) {
+                return;
+            }
+            throw $this->state === $state
+                ? new \LogicException("The promise is already {$state}.")
+                : new \LogicException("Cannot change a {$this->state} promise to {$state}");
+        }
+
+        if ($value === $this) {
+            throw new \LogicException('Cannot fulfill or reject a promise with itself');
+        }
+
+        // Clear out the state of the promise but stash the handlers.
+        $this->state = $state;
+        $this->result = $value;
+        $handlers = $this->handlers;
+        $this->handlers = null;
+        $this->waitList = $this->waitFn = null;
+        $this->cancelFn = null;
+
+        if (!$handlers) {
+            return;
+        }
+
+        // If the value was not a settled promise or a thenable, then resolve
+        // it in the task queue using the correct ID.
+        if (!method_exists($value, 'then')) {
+            $id = $state === self::FULFILLED ? 1 : 2;
+            // It's a success, so resolve the handlers in the queue.
+            queue()->add(static function () use ($id, $value, $handlers) {
+                foreach ($handlers as $handler) {
+                    self::callHandler($id, $value, $handler);
+                }
+            });
+        } elseif ($value instanceof Promise
+            && $value->getState() === self::PENDING
+        ) {
+            // We can just merge our handlers onto the next promise.
+            $value->handlers = array_merge($value->handlers, $handlers);
+        } else {
+            // Resolve the handlers when the forwarded promise is resolved.
+            $value->then(
+                static function ($value) use ($handlers) {
+                    foreach ($handlers as $handler) {
+                        self::callHandler(1, $value, $handler);
+                    }
+                },
+                static function ($reason) use ($handlers) {
+                    foreach ($handlers as $handler) {
+                        self::callHandler(2, $reason, $handler);
+                    }
+                }
+            );
+        }
+    }
+
+    /**
+     * Call a stack of handlers using a specific callback index and value.
+     *
+     * @param int   $index   1 (resolve) or 2 (reject).
+     * @param mixed $value   Value to pass to the callback.
+     * @param array $handler Array of handler data (promise and callbacks).
+     *
+     * @return array Returns the next group to resolve.
+     */
+    private static function callHandler($index, $value, array $handler)
+    {
+        /** @var PromiseInterface $promise */
+        $promise = $handler[0];
+
+        // The promise may have been cancelled or resolved before placing
+        // this thunk in the queue.
+        if ($promise->getState() !== self::PENDING) {
+            return;
+        }
+
+        try {
+            if (isset($handler[$index])) {
+                $promise->resolve($handler[$index]($value));
+            } elseif ($index === 1) {
+                // Forward resolution values as-is.
+                $promise->resolve($value);
+            } else {
+                // Forward rejections down the chain.
+                $promise->reject($value);
+            }
+        } catch (\Throwable $reason) {
+            $promise->reject($reason);
+        } catch (\Exception $reason) {
+            $promise->reject($reason);
+        }
+    }
+
+    private function waitIfPending()
+    {
+        if ($this->state !== self::PENDING) {
+            return;
+        } elseif ($this->waitFn) {
+            $this->invokeWaitFn();
+        } elseif ($this->waitList) {
+            $this->invokeWaitList();
+        } else {
+            // If there's not wait function, then reject the promise.
+            $this->reject('Cannot wait on a promise that has '
+                . 'no internal wait function. You must provide a wait '
+                . 'function when constructing the promise to be able to '
+                . 'wait on a promise.');
+        }
+
+        queue()->run();
+
+        if ($this->state === self::PENDING) {
+            $this->reject('Invoking the wait callback did not resolve the promise');
+        }
+    }
+
+    private function invokeWaitFn()
+    {
+        try {
+            $wfn = $this->waitFn;
+            $this->waitFn = null;
+            $wfn(true);
+        } catch (\Exception $reason) {
+            if ($this->state === self::PENDING) {
+                // The promise has not been resolved yet, so reject the promise
+                // with the exception.
+                $this->reject($reason);
+            } else {
+                // The promise was already resolved, so there's a problem in
+                // the application.
+                throw $reason;
+            }
+        }
+    }
+
+    private function invokeWaitList()
+    {
+        $waitList = $this->waitList;
+        $this->waitList = null;
+
+        foreach ($waitList as $result) {
+            while (true) {
+                $result->waitIfPending();
+
+                if ($result->result instanceof Promise) {
+                    $result = $result->result;
+                } else {
+                    if ($result->result instanceof PromiseInterface) {
+                        $result->result->wait(false);
+                    }
+                    break;
+                }
+            }
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/PromiseInterface.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/PromiseInterface.php
new file mode 100644
index 0000000..8f5f4b9
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/PromiseInterface.php
@@ -0,0 +1,93 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * A promise represents the eventual result of an asynchronous operation.
+ *
+ * The primary way of interacting with a promise is through its then method,
+ * which registers callbacks to receive either a promise’s eventual value or
+ * the reason why the promise cannot be fulfilled.
+ *
+ * @link https://promisesaplus.com/
+ */
+interface PromiseInterface
+{
+    const PENDING = 'pending';
+    const FULFILLED = 'fulfilled';
+    const REJECTED = 'rejected';
+
+    /**
+     * Appends fulfillment and rejection handlers to the promise, and returns
+     * a new promise resolving to the return value of the called handler.
+     *
+     * @param callable $onFulfilled Invoked when the promise fulfills.
+     * @param callable $onRejected  Invoked when the promise is rejected.
+     *
+     * @return PromiseInterface
+     */
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    );
+
+    /**
+     * Appends a rejection handler callback to the promise, and returns a new
+     * promise resolving to the return value of the callback if it is called,
+     * or to its original fulfillment value if the promise is instead
+     * fulfilled.
+     *
+     * @param callable $onRejected Invoked when the promise is rejected.
+     *
+     * @return PromiseInterface
+     */
+    public function otherwise(callable $onRejected);
+
+    /**
+     * Get the state of the promise ("pending", "rejected", or "fulfilled").
+     *
+     * The three states can be checked against the constants defined on
+     * PromiseInterface: PENDING, FULFILLED, and REJECTED.
+     *
+     * @return string
+     */
+    public function getState();
+
+    /**
+     * Resolve the promise with the given value.
+     *
+     * @param mixed $value
+     * @throws \RuntimeException if the promise is already resolved.
+     */
+    public function resolve($value);
+
+    /**
+     * Reject the promise with the given reason.
+     *
+     * @param mixed $reason
+     * @throws \RuntimeException if the promise is already resolved.
+     */
+    public function reject($reason);
+
+    /**
+     * Cancels the promise if possible.
+     *
+     * @link https://github.com/promises-aplus/cancellation-spec/issues/7
+     */
+    public function cancel();
+
+    /**
+     * Waits until the promise completes if possible.
+     *
+     * Pass $unwrap as true to unwrap the result of the promise, either
+     * returning the resolved value or throwing the rejected exception.
+     *
+     * If the promise cannot be waited on, then the promise will be rejected.
+     *
+     * @param bool $unwrap
+     *
+     * @return mixed
+     * @throws \LogicException if the promise has no wait function or if the
+     *                         promise does not settle after waiting.
+     */
+    public function wait($unwrap = true);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/PromisorInterface.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/PromisorInterface.php
new file mode 100644
index 0000000..b07fe32
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/PromisorInterface.php
@@ -0,0 +1,15 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * Interface used with classes that return a promise.
+ */
+interface PromisorInterface
+{
+    /**
+     * Returns a promise.
+     *
+     * @return PromiseInterface
+     */
+    public function promise();
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/RejectedPromise.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/RejectedPromise.php
new file mode 100644
index 0000000..2bc6508
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/RejectedPromise.php
@@ -0,0 +1,87 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * A promise that has been rejected.
+ *
+ * Thenning off of this promise will invoke the onRejected callback
+ * immediately and ignore other callbacks.
+ */
+class RejectedPromise implements PromiseInterface
+{
+    private $reason;
+
+    public function __construct($reason)
+    {
+        if (method_exists($reason, 'then')) {
+            throw new \InvalidArgumentException(
+                'You cannot create a RejectedPromise with a promise.');
+        }
+
+        $this->reason = $reason;
+    }
+
+    public function then(
+        callable $onFulfilled = null,
+        callable $onRejected = null
+    ) {
+        // If there's no onRejected callback then just return self.
+        if (!$onRejected) {
+            return $this;
+        }
+
+        $queue = queue();
+        $reason = $this->reason;
+        $p = new Promise([$queue, 'run']);
+        $queue->add(static function () use ($p, $reason, $onRejected) {
+            if ($p->getState() === self::PENDING) {
+                try {
+                    // Return a resolved promise if onRejected does not throw.
+                    $p->resolve($onRejected($reason));
+                } catch (\Throwable $e) {
+                    // onRejected threw, so return a rejected promise.
+                    $p->reject($e);
+                } catch (\Exception $e) {
+                    // onRejected threw, so return a rejected promise.
+                    $p->reject($e);
+                }
+            }
+        });
+
+        return $p;
+    }
+
+    public function otherwise(callable $onRejected)
+    {
+        return $this->then(null, $onRejected);
+    }
+
+    public function wait($unwrap = true, $defaultDelivery = null)
+    {
+        if ($unwrap) {
+            throw exception_for($this->reason);
+        }
+    }
+
+    public function getState()
+    {
+        return self::REJECTED;
+    }
+
+    public function resolve($value)
+    {
+        throw new \LogicException("Cannot resolve a rejected promise");
+    }
+
+    public function reject($reason)
+    {
+        if ($reason !== $this->reason) {
+            throw new \LogicException("Cannot reject a rejected promise");
+        }
+    }
+
+    public function cancel()
+    {
+        // pass
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/RejectionException.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/RejectionException.php
new file mode 100644
index 0000000..07c1136
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/RejectionException.php
@@ -0,0 +1,47 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * A special exception that is thrown when waiting on a rejected promise.
+ *
+ * The reason value is available via the getReason() method.
+ */
+class RejectionException extends \RuntimeException
+{
+    /** @var mixed Rejection reason. */
+    private $reason;
+
+    /**
+     * @param mixed $reason       Rejection reason.
+     * @param string $description Optional description
+     */
+    public function __construct($reason, $description = null)
+    {
+        $this->reason = $reason;
+
+        $message = 'The promise was rejected';
+
+        if ($description) {
+            $message .= ' with reason: ' . $description;
+        } elseif (is_string($reason)
+            || (is_object($reason) && method_exists($reason, '__toString'))
+        ) {
+            $message .= ' with reason: ' . $this->reason;
+        } elseif ($reason instanceof \JsonSerializable) {
+            $message .= ' with reason: '
+                . json_encode($this->reason, JSON_PRETTY_PRINT);
+        }
+
+        parent::__construct($message);
+    }
+
+    /**
+     * Returns the rejection reason.
+     *
+     * @return mixed
+     */
+    public function getReason()
+    {
+        return $this->reason;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/TaskQueue.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/TaskQueue.php
new file mode 100644
index 0000000..6e8a2a0
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/TaskQueue.php
@@ -0,0 +1,66 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * A task queue that executes tasks in a FIFO order.
+ *
+ * This task queue class is used to settle promises asynchronously and
+ * maintains a constant stack size. You can use the task queue asynchronously
+ * by calling the `run()` function of the global task queue in an event loop.
+ *
+ *     GuzzleHttp\Promise\queue()->run();
+ */
+class TaskQueue implements TaskQueueInterface
+{
+    private $enableShutdown = true;
+    private $queue = [];
+
+    public function __construct($withShutdown = true)
+    {
+        if ($withShutdown) {
+            register_shutdown_function(function () {
+                if ($this->enableShutdown) {
+                    // Only run the tasks if an E_ERROR didn't occur.
+                    $err = error_get_last();
+                    if (!$err || ($err['type'] ^ E_ERROR)) {
+                        $this->run();
+                    }
+                }
+            });
+        }
+    }
+
+    public function isEmpty()
+    {
+        return !$this->queue;
+    }
+
+    public function add(callable $task)
+    {
+        $this->queue[] = $task;
+    }
+
+    public function run()
+    {
+        /** @var callable $task */
+        while ($task = array_shift($this->queue)) {
+            $task();
+        }
+    }
+
+    /**
+     * The task queue will be run and exhausted by default when the process
+     * exits IFF the exit is not the result of a PHP E_ERROR error.
+     *
+     * You can disable running the automatic shutdown of the queue by calling
+     * this function. If you disable the task queue shutdown process, then you
+     * MUST either run the task queue (as a result of running your event loop
+     * or manually using the run() method) or wait on each outstanding promise.
+     *
+     * Note: This shutdown will occur before any destructors are triggered.
+     */
+    public function disableShutdown()
+    {
+        $this->enableShutdown = false;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/TaskQueueInterface.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/TaskQueueInterface.php
new file mode 100644
index 0000000..ac8306e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/TaskQueueInterface.php
@@ -0,0 +1,25 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+interface TaskQueueInterface
+{
+    /**
+     * Returns true if the queue is empty.
+     *
+     * @return bool
+     */
+    public function isEmpty();
+
+    /**
+     * Adds a task to the queue that will be executed the next time run is
+     * called.
+     *
+     * @param callable $task
+     */
+    public function add(callable $task);
+
+    /**
+     * Execute all of the pending task in the queue.
+     */
+    public function run();
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/functions.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/functions.php
new file mode 100644
index 0000000..4e27709
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/functions.php
@@ -0,0 +1,457 @@
+<?php
+namespace GuzzleHttp\Promise;
+
+/**
+ * Get the global task queue used for promise resolution.
+ *
+ * This task queue MUST be run in an event loop in order for promises to be
+ * settled asynchronously. It will be automatically run when synchronously
+ * waiting on a promise.
+ *
+ * <code>
+ * while ($eventLoop->isRunning()) {
+ *     GuzzleHttp\Promise\queue()->run();
+ * }
+ * </code>
+ *
+ * @param TaskQueueInterface $assign Optionally specify a new queue instance.
+ *
+ * @return TaskQueueInterface
+ */
+function queue(TaskQueueInterface $assign = null)
+{
+    static $queue;
+
+    if ($assign) {
+        $queue = $assign;
+    } elseif (!$queue) {
+        $queue = new TaskQueue();
+    }
+
+    return $queue;
+}
+
+/**
+ * Adds a function to run in the task queue when it is next `run()` and returns
+ * a promise that is fulfilled or rejected with the result.
+ *
+ * @param callable $task Task function to run.
+ *
+ * @return PromiseInterface
+ */
+function task(callable $task)
+{
+    $queue = queue();
+    $promise = new Promise([$queue, 'run']);
+    $queue->add(function () use ($task, $promise) {
+        try {
+            $promise->resolve($task());
+        } catch (\Throwable $e) {
+            $promise->reject($e);
+        } catch (\Exception $e) {
+            $promise->reject($e);
+        }
+    });
+
+    return $promise;
+}
+
+/**
+ * Creates a promise for a value if the value is not a promise.
+ *
+ * @param mixed $value Promise or value.
+ *
+ * @return PromiseInterface
+ */
+function promise_for($value)
+{
+    if ($value instanceof PromiseInterface) {
+        return $value;
+    }
+
+    // Return a Guzzle promise that shadows the given promise.
+    if (method_exists($value, 'then')) {
+        $wfn = method_exists($value, 'wait') ? [$value, 'wait'] : null;
+        $cfn = method_exists($value, 'cancel') ? [$value, 'cancel'] : null;
+        $promise = new Promise($wfn, $cfn);
+        $value->then([$promise, 'resolve'], [$promise, 'reject']);
+        return $promise;
+    }
+
+    return new FulfilledPromise($value);
+}
+
+/**
+ * Creates a rejected promise for a reason if the reason is not a promise. If
+ * the provided reason is a promise, then it is returned as-is.
+ *
+ * @param mixed $reason Promise or reason.
+ *
+ * @return PromiseInterface
+ */
+function rejection_for($reason)
+{
+    if ($reason instanceof PromiseInterface) {
+        return $reason;
+    }
+
+    return new RejectedPromise($reason);
+}
+
+/**
+ * Create an exception for a rejected promise value.
+ *
+ * @param mixed $reason
+ *
+ * @return \Exception|\Throwable
+ */
+function exception_for($reason)
+{
+    return $reason instanceof \Exception || $reason instanceof \Throwable
+        ? $reason
+        : new RejectionException($reason);
+}
+
+/**
+ * Returns an iterator for the given value.
+ *
+ * @param mixed $value
+ *
+ * @return \Iterator
+ */
+function iter_for($value)
+{
+    if ($value instanceof \Iterator) {
+        return $value;
+    } elseif (is_array($value)) {
+        return new \ArrayIterator($value);
+    } else {
+        return new \ArrayIterator([$value]);
+    }
+}
+
+/**
+ * Synchronously waits on a promise to resolve and returns an inspection state
+ * array.
+ *
+ * Returns a state associative array containing a "state" key mapping to a
+ * valid promise state. If the state of the promise is "fulfilled", the array
+ * will contain a "value" key mapping to the fulfilled value of the promise. If
+ * the promise is rejected, the array will contain a "reason" key mapping to
+ * the rejection reason of the promise.
+ *
+ * @param PromiseInterface $promise Promise or value.
+ *
+ * @return array
+ */
+function inspect(PromiseInterface $promise)
+{
+    try {
+        return [
+            'state' => PromiseInterface::FULFILLED,
+            'value' => $promise->wait()
+        ];
+    } catch (RejectionException $e) {
+        return ['state' => PromiseInterface::REJECTED, 'reason' => $e->getReason()];
+    } catch (\Throwable $e) {
+        return ['state' => PromiseInterface::REJECTED, 'reason' => $e];
+    } catch (\Exception $e) {
+        return ['state' => PromiseInterface::REJECTED, 'reason' => $e];
+    }
+}
+
+/**
+ * Waits on all of the provided promises, but does not unwrap rejected promises
+ * as thrown exception.
+ *
+ * Returns an array of inspection state arrays.
+ *
+ * @param PromiseInterface[] $promises Traversable of promises to wait upon.
+ *
+ * @return array
+ * @see GuzzleHttp\Promise\inspect for the inspection state array format.
+ */
+function inspect_all($promises)
+{
+    $results = [];
+    foreach ($promises as $key => $promise) {
+        $results[$key] = inspect($promise);
+    }
+
+    return $results;
+}
+
+/**
+ * Waits on all of the provided promises and returns the fulfilled values.
+ *
+ * Returns an array that contains the value of each promise (in the same order
+ * the promises were provided). An exception is thrown if any of the promises
+ * are rejected.
+ *
+ * @param mixed $promises Iterable of PromiseInterface objects to wait on.
+ *
+ * @return array
+ * @throws \Exception on error
+ * @throws \Throwable on error in PHP >=7
+ */
+function unwrap($promises)
+{
+    $results = [];
+    foreach ($promises as $key => $promise) {
+        $results[$key] = $promise->wait();
+    }
+
+    return $results;
+}
+
+/**
+ * Given an array of promises, return a promise that is fulfilled when all the
+ * items in the array are fulfilled.
+ *
+ * The promise's fulfillment value is an array with fulfillment values at
+ * respective positions to the original array. If any promise in the array
+ * rejects, the returned promise is rejected with the rejection reason.
+ *
+ * @param mixed $promises Promises or values.
+ *
+ * @return PromiseInterface
+ */
+function all($promises)
+{
+    $results = [];
+    return each(
+        $promises,
+        function ($value, $idx) use (&$results) {
+            $results[$idx] = $value;
+        },
+        function ($reason, $idx, Promise $aggregate) {
+            $aggregate->reject($reason);
+        }
+    )->then(function () use (&$results) {
+        ksort($results);
+        return $results;
+    });
+}
+
+/**
+ * Initiate a competitive race between multiple promises or values (values will
+ * become immediately fulfilled promises).
+ *
+ * When count amount of promises have been fulfilled, the returned promise is
+ * fulfilled with an array that contains the fulfillment values of the winners
+ * in order of resolution.
+ *
+ * This prommise is rejected with a {@see GuzzleHttp\Promise\AggregateException}
+ * if the number of fulfilled promises is less than the desired $count.
+ *
+ * @param int   $count    Total number of promises.
+ * @param mixed $promises Promises or values.
+ *
+ * @return PromiseInterface
+ */
+function some($count, $promises)
+{
+    $results = [];
+    $rejections = [];
+
+    return each(
+        $promises,
+        function ($value, $idx, PromiseInterface $p) use (&$results, $count) {
+            if ($p->getState() !== PromiseInterface::PENDING) {
+                return;
+            }
+            $results[$idx] = $value;
+            if (count($results) >= $count) {
+                $p->resolve(null);
+            }
+        },
+        function ($reason) use (&$rejections) {
+            $rejections[] = $reason;
+        }
+    )->then(
+        function () use (&$results, &$rejections, $count) {
+            if (count($results) !== $count) {
+                throw new AggregateException(
+                    'Not enough promises to fulfill count',
+                    $rejections
+                );
+            }
+            ksort($results);
+            return array_values($results);
+        }
+    );
+}
+
+/**
+ * Like some(), with 1 as count. However, if the promise fulfills, the
+ * fulfillment value is not an array of 1 but the value directly.
+ *
+ * @param mixed $promises Promises or values.
+ *
+ * @return PromiseInterface
+ */
+function any($promises)
+{
+    return some(1, $promises)->then(function ($values) { return $values[0]; });
+}
+
+/**
+ * Returns a promise that is fulfilled when all of the provided promises have
+ * been fulfilled or rejected.
+ *
+ * The returned promise is fulfilled with an array of inspection state arrays.
+ *
+ * @param mixed $promises Promises or values.
+ *
+ * @return PromiseInterface
+ * @see GuzzleHttp\Promise\inspect for the inspection state array format.
+ */
+function settle($promises)
+{
+    $results = [];
+
+    return each(
+        $promises,
+        function ($value, $idx) use (&$results) {
+            $results[$idx] = ['state' => PromiseInterface::FULFILLED, 'value' => $value];
+        },
+        function ($reason, $idx) use (&$results) {
+            $results[$idx] = ['state' => PromiseInterface::REJECTED, 'reason' => $reason];
+        }
+    )->then(function () use (&$results) {
+        ksort($results);
+        return $results;
+    });
+}
+
+/**
+ * Given an iterator that yields promises or values, returns a promise that is
+ * fulfilled with a null value when the iterator has been consumed or the
+ * aggregate promise has been fulfilled or rejected.
+ *
+ * $onFulfilled is a function that accepts the fulfilled value, iterator
+ * index, and the aggregate promise. The callback can invoke any necessary side
+ * effects and choose to resolve or reject the aggregate promise if needed.
+ *
+ * $onRejected is a function that accepts the rejection reason, iterator
+ * index, and the aggregate promise. The callback can invoke any necessary side
+ * effects and choose to resolve or reject the aggregate promise if needed.
+ *
+ * @param mixed    $iterable    Iterator or array to iterate over.
+ * @param callable $onFulfilled
+ * @param callable $onRejected
+ *
+ * @return PromiseInterface
+ */
+function each(
+    $iterable,
+    callable $onFulfilled = null,
+    callable $onRejected = null
+) {
+    return (new EachPromise($iterable, [
+        'fulfilled' => $onFulfilled,
+        'rejected'  => $onRejected
+    ]))->promise();
+}
+
+/**
+ * Like each, but only allows a certain number of outstanding promises at any
+ * given time.
+ *
+ * $concurrency may be an integer or a function that accepts the number of
+ * pending promises and returns a numeric concurrency limit value to allow for
+ * dynamic a concurrency size.
+ *
+ * @param mixed        $iterable
+ * @param int|callable $concurrency
+ * @param callable     $onFulfilled
+ * @param callable     $onRejected
+ *
+ * @return PromiseInterface
+ */
+function each_limit(
+    $iterable,
+    $concurrency,
+    callable $onFulfilled = null,
+    callable $onRejected = null
+) {
+    return (new EachPromise($iterable, [
+        'fulfilled'   => $onFulfilled,
+        'rejected'    => $onRejected,
+        'concurrency' => $concurrency
+    ]))->promise();
+}
+
+/**
+ * Like each_limit, but ensures that no promise in the given $iterable argument
+ * is rejected. If any promise is rejected, then the aggregate promise is
+ * rejected with the encountered rejection.
+ *
+ * @param mixed        $iterable
+ * @param int|callable $concurrency
+ * @param callable     $onFulfilled
+ *
+ * @return PromiseInterface
+ */
+function each_limit_all(
+    $iterable,
+    $concurrency,
+    callable $onFulfilled = null
+) {
+    return each_limit(
+        $iterable,
+        $concurrency,
+        $onFulfilled,
+        function ($reason, $idx, PromiseInterface $aggregate) {
+            $aggregate->reject($reason);
+        }
+    );
+}
+
+/**
+ * Returns true if a promise is fulfilled.
+ *
+ * @param PromiseInterface $promise
+ *
+ * @return bool
+ */
+function is_fulfilled(PromiseInterface $promise)
+{
+    return $promise->getState() === PromiseInterface::FULFILLED;
+}
+
+/**
+ * Returns true if a promise is rejected.
+ *
+ * @param PromiseInterface $promise
+ *
+ * @return bool
+ */
+function is_rejected(PromiseInterface $promise)
+{
+    return $promise->getState() === PromiseInterface::REJECTED;
+}
+
+/**
+ * Returns true if a promise is fulfilled or rejected.
+ *
+ * @param PromiseInterface $promise
+ *
+ * @return bool
+ */
+function is_settled(PromiseInterface $promise)
+{
+    return $promise->getState() !== PromiseInterface::PENDING;
+}
+
+/**
+ * @see Coroutine
+ *
+ * @param callable $generatorFn
+ *
+ * @return PromiseInterface
+ */
+function coroutine(callable $generatorFn)
+{
+    return new Coroutine($generatorFn);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/functions_include.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/functions_include.php
new file mode 100644
index 0000000..34cd171
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/promises/src/functions_include.php
@@ -0,0 +1,6 @@
+<?php
+
+// Don't redefine the functions if included multiple times.
+if (!function_exists('GuzzleHttp\Promise\promise_for')) {
+    require __DIR__ . '/functions.php';
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/CHANGELOG.md b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/CHANGELOG.md
new file mode 100644
index 0000000..5c252b3
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/CHANGELOG.md
@@ -0,0 +1,110 @@
+# CHANGELOG
+
+## 1.4.2 - 2017-03-20
+
+* Reverted BC break to `Uri::resolve` and `Uri::removeDotSegments` by removing 
+  calls to `trigger_error` when deprecated methods are invoked.
+
+## 1.4.1 - 2017-02-27
+
+* Reverted BC break by reintroducing behavior to automagically fix a URI with a
+  relative path and an authority by adding a leading slash to the path. It's only
+  deprecated now.
+* Added triggering of silenced deprecation warnings.
+
+## 1.4.0 - 2017-02-21
+
+* Fix `Stream::read` when length parameter <= 0.
+* `copy_to_stream` reads bytes in chunks instead of `maxLen` into memory.
+* Fix `ServerRequest::getUriFromGlobals` when `Host` header contains port.
+* Ensure `ServerRequest::getUriFromGlobals` returns a URI in absolute form.
+* Allow `parse_response` to parse a response without delimiting space and reason.
+* Ensure each URI modification results in a valid URI according to PSR-7 discussions.
+  Invalid modifications will throw an exception instead of returning a wrong URI or
+  doing some magic.
+  - `(new Uri)->withPath('foo')->withHost('example.com')` will throw an exception
+    because the path of a URI with an authority must start with a slash "/" or be empty
+  - `(new Uri())->withScheme('http')` will return `'http://localhost'`
+* Fix compatibility of URIs with `file` scheme and empty host.
+* Added common URI utility methods based on RFC 3986 (see documentation in the readme):
+  - `Uri::isDefaultPort`
+  - `Uri::isAbsolute`
+  - `Uri::isNetworkPathReference`
+  - `Uri::isAbsolutePathReference`
+  - `Uri::isRelativePathReference`
+  - `Uri::isSameDocumentReference`
+  - `Uri::composeComponents`
+  - `UriNormalizer::normalize`
+  - `UriNormalizer::isEquivalent`
+  - `UriResolver::relativize`
+* Deprecated `Uri::resolve` in favor of `UriResolver::resolve`
+* Deprecated `Uri::removeDotSegments` in favor of `UriResolver::removeDotSegments`
+
+## 1.3.1 - 2016-06-25
+
+* Fix `Uri::__toString` for network path references, e.g. `//example.org`.
+* Fix missing lowercase normalization for host.
+* Fix handling of URI components in case they are `'0'` in a lot of places,
+  e.g. as a user info password.
+* Fix `Uri::withAddedHeader` to correctly merge headers with different case.
+* Fix trimming of header values in `Uri::withAddedHeader`. Header values may
+  be surrounded by whitespace which should be ignored according to RFC 7230
+  Section 3.2.4. This does not apply to header names.
+* Fix `Uri::withAddedHeader` with an array of header values.
+* Fix `Uri::resolve` when base path has no slash and handling of fragment.
+* Fix handling of encoding in `Uri::with(out)QueryValue` so one can pass the
+  key/value both in encoded as well as decoded form to those methods. This is
+  consistent with withPath, withQuery etc.
+* Fix `ServerRequest::withoutAttribute` when attribute value is null.
+
+## 1.3.0 - 2016-04-13
+
+* Added remaining interfaces needed for full PSR7 compatibility
+  (ServerRequestInterface, UploadedFileInterface, etc.).
+* Added support for stream_for from scalars.
+* Can now extend Uri.
+* Fixed a bug in validating request methods by making it more permissive.
+
+## 1.2.3 - 2016-02-18
+
+* Fixed support in `GuzzleHttp\Psr7\CachingStream` for seeking forward on remote
+  streams, which can sometimes return fewer bytes than requested with `fread`.
+* Fixed handling of gzipped responses with FNAME headers.
+
+## 1.2.2 - 2016-01-22
+
+* Added support for URIs without any authority.
+* Added support for HTTP 451 'Unavailable For Legal Reasons.'
+* Added support for using '0' as a filename.
+* Added support for including non-standard ports in Host headers.
+
+## 1.2.1 - 2015-11-02
+
+* Now supporting negative offsets when seeking to SEEK_END.
+
+## 1.2.0 - 2015-08-15
+
+* Body as `"0"` is now properly added to a response.
+* Now allowing forward seeking in CachingStream.
+* Now properly parsing HTTP requests that contain proxy targets in
+  `parse_request`.
+* functions.php is now conditionally required.
+* user-info is no longer dropped when resolving URIs.
+
+## 1.1.0 - 2015-06-24
+
+* URIs can now be relative.
+* `multipart/form-data` headers are now overridden case-insensitively.
+* URI paths no longer encode the following characters because they are allowed
+  in URIs: "(", ")", "*", "!", "'"
+* A port is no longer added to a URI when the scheme is missing and no port is
+  present.
+
+## 1.0.0 - 2015-05-19
+
+Initial release.
+
+Currently unsupported:
+
+- `Psr\Http\Message\ServerRequestInterface`
+- `Psr\Http\Message\UploadedFileInterface`
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/LICENSE
new file mode 100644
index 0000000..581d95f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2015 Michael Dowling, https://github.com/mtdowling <mtdowling@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/README.md b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/README.md
new file mode 100644
index 0000000..1649935
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/README.md
@@ -0,0 +1,739 @@
+# PSR-7 Message Implementation
+
+This repository contains a full [PSR-7](http://www.php-fig.org/psr/psr-7/)
+message implementation, several stream decorators, and some helpful
+functionality like query string parsing.
+
+
+[![Build Status](https://travis-ci.org/guzzle/psr7.svg?branch=master)](https://travis-ci.org/guzzle/psr7)
+
+
+# Stream implementation
+
+This package comes with a number of stream implementations and stream
+decorators.
+
+
+## AppendStream
+
+`GuzzleHttp\Psr7\AppendStream`
+
+Reads from multiple streams, one after the other.
+
+```php
+use GuzzleHttp\Psr7;
+
+$a = Psr7\stream_for('abc, ');
+$b = Psr7\stream_for('123.');
+$composed = new Psr7\AppendStream([$a, $b]);
+
+$composed->addStream(Psr7\stream_for(' Above all listen to me'));
+
+echo $composed; // abc, 123. Above all listen to me.
+```
+
+
+## BufferStream
+
+`GuzzleHttp\Psr7\BufferStream`
+
+Provides a buffer stream that can be written to fill a buffer, and read
+from to remove bytes from the buffer.
+
+This stream returns a "hwm" metadata value that tells upstream consumers
+what the configured high water mark of the stream is, or the maximum
+preferred size of the buffer.
+
+```php
+use GuzzleHttp\Psr7;
+
+// When more than 1024 bytes are in the buffer, it will begin returning
+// false to writes. This is an indication that writers should slow down.
+$buffer = new Psr7\BufferStream(1024);
+```
+
+
+## CachingStream
+
+The CachingStream is used to allow seeking over previously read bytes on
+non-seekable streams. This can be useful when transferring a non-seekable
+entity body fails due to needing to rewind the stream (for example, resulting
+from a redirect). Data that is read from the remote stream will be buffered in
+a PHP temp stream so that previously read bytes are cached first in memory,
+then on disk.
+
+```php
+use GuzzleHttp\Psr7;
+
+$original = Psr7\stream_for(fopen('http://www.google.com', 'r'));
+$stream = new Psr7\CachingStream($original);
+
+$stream->read(1024);
+echo $stream->tell();
+// 1024
+
+$stream->seek(0);
+echo $stream->tell();
+// 0
+```
+
+
+## DroppingStream
+
+`GuzzleHttp\Psr7\DroppingStream`
+
+Stream decorator that begins dropping data once the size of the underlying
+stream becomes too full.
+
+```php
+use GuzzleHttp\Psr7;
+
+// Create an empty stream
+$stream = Psr7\stream_for();
+
+// Start dropping data when the stream has more than 10 bytes
+$dropping = new Psr7\DroppingStream($stream, 10);
+
+$dropping->write('01234567890123456789');
+echo $stream; // 0123456789
+```
+
+
+## FnStream
+
+`GuzzleHttp\Psr7\FnStream`
+
+Compose stream implementations based on a hash of functions.
+
+Allows for easy testing and extension of a provided stream without needing
+to create a concrete class for a simple extension point.
+
+```php
+
+use GuzzleHttp\Psr7;
+
+$stream = Psr7\stream_for('hi');
+$fnStream = Psr7\FnStream::decorate($stream, [
+    'rewind' => function () use ($stream) {
+        echo 'About to rewind - ';
+        $stream->rewind();
+        echo 'rewound!';
+    }
+]);
+
+$fnStream->rewind();
+// Outputs: About to rewind - rewound!
+```
+
+
+## InflateStream
+
+`GuzzleHttp\Psr7\InflateStream`
+
+Uses PHP's zlib.inflate filter to inflate deflate or gzipped content.
+
+This stream decorator skips the first 10 bytes of the given stream to remove
+the gzip header, converts the provided stream to a PHP stream resource,
+then appends the zlib.inflate filter. The stream is then converted back
+to a Guzzle stream resource to be used as a Guzzle stream.
+
+
+## LazyOpenStream
+
+`GuzzleHttp\Psr7\LazyOpenStream`
+
+Lazily reads or writes to a file that is opened only after an IO operation
+take place on the stream.
+
+```php
+use GuzzleHttp\Psr7;
+
+$stream = new Psr7\LazyOpenStream('/path/to/file', 'r');
+// The file has not yet been opened...
+
+echo $stream->read(10);
+// The file is opened and read from only when needed.
+```
+
+
+## LimitStream
+
+`GuzzleHttp\Psr7\LimitStream`
+
+LimitStream can be used to read a subset or slice of an existing stream object.
+This can be useful for breaking a large file into smaller pieces to be sent in
+chunks (e.g. Amazon S3's multipart upload API).
+
+```php
+use GuzzleHttp\Psr7;
+
+$original = Psr7\stream_for(fopen('/tmp/test.txt', 'r+'));
+echo $original->getSize();
+// >>> 1048576
+
+// Limit the size of the body to 1024 bytes and start reading from byte 2048
+$stream = new Psr7\LimitStream($original, 1024, 2048);
+echo $stream->getSize();
+// >>> 1024
+echo $stream->tell();
+// >>> 0
+```
+
+
+## MultipartStream
+
+`GuzzleHttp\Psr7\MultipartStream`
+
+Stream that when read returns bytes for a streaming multipart or
+multipart/form-data stream.
+
+
+## NoSeekStream
+
+`GuzzleHttp\Psr7\NoSeekStream`
+
+NoSeekStream wraps a stream and does not allow seeking.
+
+```php
+use GuzzleHttp\Psr7;
+
+$original = Psr7\stream_for('foo');
+$noSeek = new Psr7\NoSeekStream($original);
+
+echo $noSeek->read(3);
+// foo
+var_export($noSeek->isSeekable());
+// false
+$noSeek->seek(0);
+var_export($noSeek->read(3));
+// NULL
+```
+
+
+## PumpStream
+
+`GuzzleHttp\Psr7\PumpStream`
+
+Provides a read only stream that pumps data from a PHP callable.
+
+When invoking the provided callable, the PumpStream will pass the amount of
+data requested to read to the callable. The callable can choose to ignore
+this value and return fewer or more bytes than requested. Any extra data
+returned by the provided callable is buffered internally until drained using
+the read() function of the PumpStream. The provided callable MUST return
+false when there is no more data to read.
+
+
+## Implementing stream decorators
+
+Creating a stream decorator is very easy thanks to the
+`GuzzleHttp\Psr7\StreamDecoratorTrait`. This trait provides methods that
+implement `Psr\Http\Message\StreamInterface` by proxying to an underlying
+stream. Just `use` the `StreamDecoratorTrait` and implement your custom
+methods.
+
+For example, let's say we wanted to call a specific function each time the last
+byte is read from a stream. This could be implemented by overriding the
+`read()` method.
+
+```php
+use Psr\Http\Message\StreamInterface;
+use GuzzleHttp\Psr7\StreamDecoratorTrait;
+
+class EofCallbackStream implements StreamInterface
+{
+    use StreamDecoratorTrait;
+
+    private $callback;
+
+    public function __construct(StreamInterface $stream, callable $cb)
+    {
+        $this->stream = $stream;
+        $this->callback = $cb;
+    }
+
+    public function read($length)
+    {
+        $result = $this->stream->read($length);
+
+        // Invoke the callback when EOF is hit.
+        if ($this->eof()) {
+            call_user_func($this->callback);
+        }
+
+        return $result;
+    }
+}
+```
+
+This decorator could be added to any existing stream and used like so:
+
+```php
+use GuzzleHttp\Psr7;
+
+$original = Psr7\stream_for('foo');
+
+$eofStream = new EofCallbackStream($original, function () {
+    echo 'EOF!';
+});
+
+$eofStream->read(2);
+$eofStream->read(1);
+// echoes "EOF!"
+$eofStream->seek(0);
+$eofStream->read(3);
+// echoes "EOF!"
+```
+
+
+## PHP StreamWrapper
+
+You can use the `GuzzleHttp\Psr7\StreamWrapper` class if you need to use a
+PSR-7 stream as a PHP stream resource.
+
+Use the `GuzzleHttp\Psr7\StreamWrapper::getResource()` method to create a PHP
+stream from a PSR-7 stream.
+
+```php
+use GuzzleHttp\Psr7\StreamWrapper;
+
+$stream = GuzzleHttp\Psr7\stream_for('hello!');
+$resource = StreamWrapper::getResource($stream);
+echo fread($resource, 6); // outputs hello!
+```
+
+
+# Function API
+
+There are various functions available under the `GuzzleHttp\Psr7` namespace.
+
+
+## `function str`
+
+`function str(MessageInterface $message)`
+
+Returns the string representation of an HTTP message.
+
+```php
+$request = new GuzzleHttp\Psr7\Request('GET', 'http://example.com');
+echo GuzzleHttp\Psr7\str($request);
+```
+
+
+## `function uri_for`
+
+`function uri_for($uri)`
+
+This function accepts a string or `Psr\Http\Message\UriInterface` and returns a
+UriInterface for the given value. If the value is already a `UriInterface`, it
+is returned as-is.
+
+```php
+$uri = GuzzleHttp\Psr7\uri_for('http://example.com');
+assert($uri === GuzzleHttp\Psr7\uri_for($uri));
+```
+
+
+## `function stream_for`
+
+`function stream_for($resource = '', array $options = [])`
+
+Create a new stream based on the input type.
+
+Options is an associative array that can contain the following keys:
+
+* - metadata: Array of custom metadata.
+* - size: Size of the stream.
+
+This method accepts the following `$resource` types:
+
+- `Psr\Http\Message\StreamInterface`: Returns the value as-is.
+- `string`: Creates a stream object that uses the given string as the contents.
+- `resource`: Creates a stream object that wraps the given PHP stream resource.
+- `Iterator`: If the provided value implements `Iterator`, then a read-only
+  stream object will be created that wraps the given iterable. Each time the
+  stream is read from, data from the iterator will fill a buffer and will be
+  continuously called until the buffer is equal to the requested read size.
+  Subsequent read calls will first read from the buffer and then call `next`
+  on the underlying iterator until it is exhausted.
+- `object` with `__toString()`: If the object has the `__toString()` method,
+  the object will be cast to a string and then a stream will be returned that
+  uses the string value.
+- `NULL`: When `null` is passed, an empty stream object is returned.
+- `callable` When a callable is passed, a read-only stream object will be
+  created that invokes the given callable. The callable is invoked with the
+  number of suggested bytes to read. The callable can return any number of
+  bytes, but MUST return `false` when there is no more data to return. The
+  stream object that wraps the callable will invoke the callable until the
+  number of requested bytes are available. Any additional bytes will be
+  buffered and used in subsequent reads.
+
+```php
+$stream = GuzzleHttp\Psr7\stream_for('foo');
+$stream = GuzzleHttp\Psr7\stream_for(fopen('/path/to/file', 'r'));
+
+$generator function ($bytes) {
+    for ($i = 0; $i < $bytes; $i++) {
+        yield ' ';
+    }
+}
+
+$stream = GuzzleHttp\Psr7\stream_for($generator(100));
+```
+
+
+## `function parse_header`
+
+`function parse_header($header)`
+
+Parse an array of header values containing ";" separated data into an array of
+associative arrays representing the header key value pair data of the header.
+When a parameter does not contain a value, but just contains a key, this
+function will inject a key with a '' string value.
+
+
+## `function normalize_header`
+
+`function normalize_header($header)`
+
+Converts an array of header values that may contain comma separated headers
+into an array of headers with no comma separated values.
+
+
+## `function modify_request`
+
+`function modify_request(RequestInterface $request, array $changes)`
+
+Clone and modify a request with the given changes. This method is useful for
+reducing the number of clones needed to mutate a message.
+
+The changes can be one of:
+
+- method: (string) Changes the HTTP method.
+- set_headers: (array) Sets the given headers.
+- remove_headers: (array) Remove the given headers.
+- body: (mixed) Sets the given body.
+- uri: (UriInterface) Set the URI.
+- query: (string) Set the query string value of the URI.
+- version: (string) Set the protocol version.
+
+
+## `function rewind_body`
+
+`function rewind_body(MessageInterface $message)`
+
+Attempts to rewind a message body and throws an exception on failure. The body
+of the message will only be rewound if a call to `tell()` returns a value other
+than `0`.
+
+
+## `function try_fopen`
+
+`function try_fopen($filename, $mode)`
+
+Safely opens a PHP stream resource using a filename.
+
+When fopen fails, PHP normally raises a warning. This function adds an error
+handler that checks for errors and throws an exception instead.
+
+
+## `function copy_to_string`
+
+`function copy_to_string(StreamInterface $stream, $maxLen = -1)`
+
+Copy the contents of a stream into a string until the given number of bytes
+have been read.
+
+
+## `function copy_to_stream`
+
+`function copy_to_stream(StreamInterface $source, StreamInterface $dest, $maxLen = -1)`
+
+Copy the contents of a stream into another stream until the given number of
+bytes have been read.
+
+
+## `function hash`
+
+`function hash(StreamInterface $stream, $algo, $rawOutput = false)`
+
+Calculate a hash of a Stream. This method reads the entire stream to calculate
+a rolling hash (based on PHP's hash_init functions).
+
+
+## `function readline`
+
+`function readline(StreamInterface $stream, $maxLength = null)`
+
+Read a line from the stream up to the maximum allowed buffer length.
+
+
+## `function parse_request`
+
+`function parse_request($message)`
+
+Parses a request message string into a request object.
+
+
+## `function parse_response`
+
+`function parse_response($message)`
+
+Parses a response message string into a response object.
+
+
+## `function parse_query`
+
+`function parse_query($str, $urlEncoding = true)`
+
+Parse a query string into an associative array.
+
+If multiple values are found for the same key, the value of that key value pair
+will become an array. This function does not parse nested PHP style arrays into
+an associative array (e.g., `foo[a]=1&foo[b]=2` will be parsed into
+`['foo[a]' => '1', 'foo[b]' => '2']`).
+
+
+## `function build_query`
+
+`function build_query(array $params, $encoding = PHP_QUERY_RFC3986)`
+
+Build a query string from an array of key value pairs.
+
+This function can use the return value of parse_query() to build a query string.
+This function does not modify the provided keys when an array is encountered
+(like http_build_query would).
+
+
+## `function mimetype_from_filename`
+
+`function mimetype_from_filename($filename)`
+
+Determines the mimetype of a file by looking at its extension.
+
+
+## `function mimetype_from_extension`
+
+`function mimetype_from_extension($extension)`
+
+Maps a file extensions to a mimetype.
+
+
+# Additional URI Methods
+
+Aside from the standard `Psr\Http\Message\UriInterface` implementation in form of the `GuzzleHttp\Psr7\Uri` class,
+this library also provides additional functionality when working with URIs as static methods.
+
+## URI Types
+
+An instance of `Psr\Http\Message\UriInterface` can either be an absolute URI or a relative reference.
+An absolute URI has a scheme. A relative reference is used to express a URI relative to another URI,
+the base URI. Relative references can be divided into several forms according to
+[RFC 3986 Section 4.2](https://tools.ietf.org/html/rfc3986#section-4.2):
+
+- network-path references, e.g. `//example.com/path`
+- absolute-path references, e.g. `/path`
+- relative-path references, e.g. `subpath`
+
+The following methods can be used to identify the type of the URI.
+
+### `GuzzleHttp\Psr7\Uri::isAbsolute`
+
+`public static function isAbsolute(UriInterface $uri): bool`
+
+Whether the URI is absolute, i.e. it has a scheme.
+
+### `GuzzleHttp\Psr7\Uri::isNetworkPathReference`
+
+`public static function isNetworkPathReference(UriInterface $uri): bool`
+
+Whether the URI is a network-path reference. A relative reference that begins with two slash characters is
+termed an network-path reference.
+
+### `GuzzleHttp\Psr7\Uri::isAbsolutePathReference`
+
+`public static function isAbsolutePathReference(UriInterface $uri): bool`
+
+Whether the URI is a absolute-path reference. A relative reference that begins with a single slash character is
+termed an absolute-path reference.
+
+### `GuzzleHttp\Psr7\Uri::isRelativePathReference`
+
+`public static function isRelativePathReference(UriInterface $uri): bool`
+
+Whether the URI is a relative-path reference. A relative reference that does not begin with a slash character is
+termed a relative-path reference.
+
+### `GuzzleHttp\Psr7\Uri::isSameDocumentReference`
+
+`public static function isSameDocumentReference(UriInterface $uri, UriInterface $base = null): bool`
+
+Whether the URI is a same-document reference. A same-document reference refers to a URI that is, aside from its
+fragment component, identical to the base URI. When no base URI is given, only an empty URI reference
+(apart from its fragment) is considered a same-document reference.
+
+## URI Components
+
+Additional methods to work with URI components.
+
+### `GuzzleHttp\Psr7\Uri::isDefaultPort`
+
+`public static function isDefaultPort(UriInterface $uri): bool`
+
+Whether the URI has the default port of the current scheme. `Psr\Http\Message\UriInterface::getPort` may return null
+or the standard port. This method can be used independently of the implementation.
+
+### `GuzzleHttp\Psr7\Uri::composeComponents`
+
+`public static function composeComponents($scheme, $authority, $path, $query, $fragment): string`
+
+Composes a URI reference string from its various components according to
+[RFC 3986 Section 5.3](https://tools.ietf.org/html/rfc3986#section-5.3). Usually this method does not need to be called
+manually but instead is used indirectly via `Psr\Http\Message\UriInterface::__toString`.
+
+### `GuzzleHttp\Psr7\Uri::fromParts`
+
+`public static function fromParts(array $parts): UriInterface`
+
+Creates a URI from a hash of [`parse_url`](http://php.net/manual/en/function.parse-url.php) components.
+
+
+### `GuzzleHttp\Psr7\Uri::withQueryValue`
+
+`public static function withQueryValue(UriInterface $uri, $key, $value): UriInterface`
+
+Creates a new URI with a specific query string value. Any existing query string values that exactly match the
+provided key are removed and replaced with the given key value pair. A value of null will set the query string
+key without a value, e.g. "key" instead of "key=value".
+
+
+### `GuzzleHttp\Psr7\Uri::withoutQueryValue`
+
+`public static function withoutQueryValue(UriInterface $uri, $key): UriInterface`
+
+Creates a new URI with a specific query string value removed. Any existing query string values that exactly match the
+provided key are removed.
+
+## Reference Resolution
+
+`GuzzleHttp\Psr7\UriResolver` provides methods to resolve a URI reference in the context of a base URI according
+to [RFC 3986 Section 5](https://tools.ietf.org/html/rfc3986#section-5). This is for example also what web browsers
+do when resolving a link in a website based on the current request URI.
+
+### `GuzzleHttp\Psr7\UriResolver::resolve`
+
+`public static function resolve(UriInterface $base, UriInterface $rel): UriInterface`
+
+Converts the relative URI into a new URI that is resolved against the base URI.
+
+### `GuzzleHttp\Psr7\UriResolver::removeDotSegments`
+
+`public static function removeDotSegments(string $path): string`
+
+Removes dot segments from a path and returns the new path according to
+[RFC 3986 Section 5.2.4](https://tools.ietf.org/html/rfc3986#section-5.2.4).
+
+### `GuzzleHttp\Psr7\UriResolver::relativize`
+
+`public static function relativize(UriInterface $base, UriInterface $target): UriInterface`
+
+Returns the target URI as a relative reference from the base URI. This method is the counterpart to resolve():
+
+```php
+(string) $target === (string) UriResolver::resolve($base, UriResolver::relativize($base, $target))
+```
+
+One use-case is to use the current request URI as base URI and then generate relative links in your documents
+to reduce the document size or offer self-contained downloadable document archives.
+
+```php
+$base = new Uri('http://example.com/a/b/');
+echo UriResolver::relativize($base, new Uri('http://example.com/a/b/c'));  // prints 'c'.
+echo UriResolver::relativize($base, new Uri('http://example.com/a/x/y'));  // prints '../x/y'.
+echo UriResolver::relativize($base, new Uri('http://example.com/a/b/?q')); // prints '?q'.
+echo UriResolver::relativize($base, new Uri('http://example.org/a/b/'));   // prints '//example.org/a/b/'.
+```
+
+## Normalization and Comparison
+
+`GuzzleHttp\Psr7\UriNormalizer` provides methods to normalize and compare URIs according to
+[RFC 3986 Section 6](https://tools.ietf.org/html/rfc3986#section-6).
+
+### `GuzzleHttp\Psr7\UriNormalizer::normalize`
+
+`public static function normalize(UriInterface $uri, $flags = self::PRESERVING_NORMALIZATIONS): UriInterface`
+
+Returns a normalized URI. The scheme and host component are already normalized to lowercase per PSR-7 UriInterface.
+This methods adds additional normalizations that can be configured with the `$flags` parameter which is a bitmask
+of normalizations to apply. The following normalizations are available:
+
+- `UriNormalizer::PRESERVING_NORMALIZATIONS`
+
+    Default normalizations which only include the ones that preserve semantics.
+
+- `UriNormalizer::CAPITALIZE_PERCENT_ENCODING`
+
+    All letters within a percent-encoding triplet (e.g., "%3A") are case-insensitive, and should be capitalized.
+
+    Example: `http://example.org/a%c2%b1b` → `http://example.org/a%C2%B1b`
+
+- `UriNormalizer::DECODE_UNRESERVED_CHARACTERS`
+
+    Decodes percent-encoded octets of unreserved characters. For consistency, percent-encoded octets in the ranges of
+    ALPHA (%41–%5A and %61–%7A), DIGIT (%30–%39), hyphen (%2D), period (%2E), underscore (%5F), or tilde (%7E) should
+    not be created by URI producers and, when found in a URI, should be decoded to their corresponding unreserved
+    characters by URI normalizers.
+
+    Example: `http://example.org/%7Eusern%61me/` → `http://example.org/~username/`
+
+- `UriNormalizer::CONVERT_EMPTY_PATH`
+
+    Converts the empty path to "/" for http and https URIs.
+
+    Example: `http://example.org` → `http://example.org/`
+
+- `UriNormalizer::REMOVE_DEFAULT_HOST`
+
+    Removes the default host of the given URI scheme from the URI. Only the "file" scheme defines the default host
+    "localhost". All of `file:/myfile`, `file:///myfile`, and `file://localhost/myfile` are equivalent according to
+    RFC 3986.
+
+    Example: `file://localhost/myfile` → `file:///myfile`
+
+- `UriNormalizer::REMOVE_DEFAULT_PORT`
+
+    Removes the default port of the given URI scheme from the URI.
+
+    Example: `http://example.org:80/` → `http://example.org/`
+
+- `UriNormalizer::REMOVE_DOT_SEGMENTS`
+
+    Removes unnecessary dot-segments. Dot-segments in relative-path references are not removed as it would
+    change the semantics of the URI reference.
+
+    Example: `http://example.org/../a/b/../c/./d.html` → `http://example.org/a/c/d.html`
+
+- `UriNormalizer::REMOVE_DUPLICATE_SLASHES`
+
+    Paths which include two or more adjacent slashes are converted to one. Webservers usually ignore duplicate slashes
+    and treat those URIs equivalent. But in theory those URIs do not need to be equivalent. So this normalization
+    may change the semantics. Encoded slashes (%2F) are not removed.
+
+    Example: `http://example.org//foo///bar.html` → `http://example.org/foo/bar.html`
+
+- `UriNormalizer::SORT_QUERY_PARAMETERS`
+
+    Sort query parameters with their values in alphabetical order. However, the order of parameters in a URI may be
+    significant (this is not defined by the standard). So this normalization is not safe and may change the semantics
+    of the URI.
+
+    Example: `?lang=en&article=fred` → `?article=fred&lang=en`
+
+### `GuzzleHttp\Psr7\UriNormalizer::isEquivalent`
+
+`public static function isEquivalent(UriInterface $uri1, UriInterface $uri2, $normalizations = self::PRESERVING_NORMALIZATIONS): bool`
+
+Whether two URIs can be considered equivalent. Both URIs are normalized automatically before comparison with the given
+`$normalizations` bitmask. The method also accepts relative URI references and returns true when they are equivalent.
+This of course assumes they will be resolved against the same base URI. If this is not the case, determination of
+equivalence or difference of relative references does not mean anything.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/composer.json b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/composer.json
new file mode 100644
index 0000000..b1c5a90
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/composer.json
@@ -0,0 +1,39 @@
+{
+    "name": "guzzlehttp/psr7",
+    "type": "library",
+    "description": "PSR-7 message implementation that also provides common utility methods",
+    "keywords": ["request", "response", "message", "stream", "http", "uri", "url"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Michael Dowling",
+            "email": "mtdowling@gmail.com",
+            "homepage": "https://github.com/mtdowling"
+        },
+        {
+            "name": "Tobias Schultze",
+            "homepage": "https://github.com/Tobion"
+        }
+    ],
+    "require": {
+        "php": ">=5.4.0",
+        "psr/http-message": "~1.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "~4.0"
+    },
+    "provide": {
+        "psr/http-message-implementation": "1.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "GuzzleHttp\\Psr7\\": "src/"
+        },
+        "files": ["src/functions_include.php"]
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.4-dev"
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/AppendStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/AppendStream.php
new file mode 100644
index 0000000..23039fd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/AppendStream.php
@@ -0,0 +1,233 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Reads from multiple streams, one after the other.
+ *
+ * This is a read-only stream decorator.
+ */
+class AppendStream implements StreamInterface
+{
+    /** @var StreamInterface[] Streams being decorated */
+    private $streams = [];
+
+    private $seekable = true;
+    private $current = 0;
+    private $pos = 0;
+    private $detached = false;
+
+    /**
+     * @param StreamInterface[] $streams Streams to decorate. Each stream must
+     *                                   be readable.
+     */
+    public function __construct(array $streams = [])
+    {
+        foreach ($streams as $stream) {
+            $this->addStream($stream);
+        }
+    }
+
+    public function __toString()
+    {
+        try {
+            $this->rewind();
+            return $this->getContents();
+        } catch (\Exception $e) {
+            return '';
+        }
+    }
+
+    /**
+     * Add a stream to the AppendStream
+     *
+     * @param StreamInterface $stream Stream to append. Must be readable.
+     *
+     * @throws \InvalidArgumentException if the stream is not readable
+     */
+    public function addStream(StreamInterface $stream)
+    {
+        if (!$stream->isReadable()) {
+            throw new \InvalidArgumentException('Each stream must be readable');
+        }
+
+        // The stream is only seekable if all streams are seekable
+        if (!$stream->isSeekable()) {
+            $this->seekable = false;
+        }
+
+        $this->streams[] = $stream;
+    }
+
+    public function getContents()
+    {
+        return copy_to_string($this);
+    }
+
+    /**
+     * Closes each attached stream.
+     *
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        $this->pos = $this->current = 0;
+
+        foreach ($this->streams as $stream) {
+            $stream->close();
+        }
+
+        $this->streams = [];
+    }
+
+    /**
+     * Detaches each attached stream
+     *
+     * {@inheritdoc}
+     */
+    public function detach()
+    {
+        $this->close();
+        $this->detached = true;
+    }
+
+    public function tell()
+    {
+        return $this->pos;
+    }
+
+    /**
+     * Tries to calculate the size by adding the size of each stream.
+     *
+     * If any of the streams do not return a valid number, then the size of the
+     * append stream cannot be determined and null is returned.
+     *
+     * {@inheritdoc}
+     */
+    public function getSize()
+    {
+        $size = 0;
+
+        foreach ($this->streams as $stream) {
+            $s = $stream->getSize();
+            if ($s === null) {
+                return null;
+            }
+            $size += $s;
+        }
+
+        return $size;
+    }
+
+    public function eof()
+    {
+        return !$this->streams ||
+            ($this->current >= count($this->streams) - 1 &&
+             $this->streams[$this->current]->eof());
+    }
+
+    public function rewind()
+    {
+        $this->seek(0);
+    }
+
+    /**
+     * Attempts to seek to the given position. Only supports SEEK_SET.
+     *
+     * {@inheritdoc}
+     */
+    public function seek($offset, $whence = SEEK_SET)
+    {
+        if (!$this->seekable) {
+            throw new \RuntimeException('This AppendStream is not seekable');
+        } elseif ($whence !== SEEK_SET) {
+            throw new \RuntimeException('The AppendStream can only seek with SEEK_SET');
+        }
+
+        $this->pos = $this->current = 0;
+
+        // Rewind each stream
+        foreach ($this->streams as $i => $stream) {
+            try {
+                $stream->rewind();
+            } catch (\Exception $e) {
+                throw new \RuntimeException('Unable to seek stream '
+                    . $i . ' of the AppendStream', 0, $e);
+            }
+        }
+
+        // Seek to the actual position by reading from each stream
+        while ($this->pos < $offset && !$this->eof()) {
+            $result = $this->read(min(8096, $offset - $this->pos));
+            if ($result === '') {
+                break;
+            }
+        }
+    }
+
+    /**
+     * Reads from all of the appended streams until the length is met or EOF.
+     *
+     * {@inheritdoc}
+     */
+    public function read($length)
+    {
+        $buffer = '';
+        $total = count($this->streams) - 1;
+        $remaining = $length;
+        $progressToNext = false;
+
+        while ($remaining > 0) {
+
+            // Progress to the next stream if needed.
+            if ($progressToNext || $this->streams[$this->current]->eof()) {
+                $progressToNext = false;
+                if ($this->current === $total) {
+                    break;
+                }
+                $this->current++;
+            }
+
+            $result = $this->streams[$this->current]->read($remaining);
+
+            // Using a loose comparison here to match on '', false, and null
+            if ($result == null) {
+                $progressToNext = true;
+                continue;
+            }
+
+            $buffer .= $result;
+            $remaining = $length - strlen($buffer);
+        }
+
+        $this->pos += strlen($buffer);
+
+        return $buffer;
+    }
+
+    public function isReadable()
+    {
+        return true;
+    }
+
+    public function isWritable()
+    {
+        return false;
+    }
+
+    public function isSeekable()
+    {
+        return $this->seekable;
+    }
+
+    public function write($string)
+    {
+        throw new \RuntimeException('Cannot write to an AppendStream');
+    }
+
+    public function getMetadata($key = null)
+    {
+        return $key ? null : [];
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/BufferStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/BufferStream.php
new file mode 100644
index 0000000..af4d4c2
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/BufferStream.php
@@ -0,0 +1,137 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Provides a buffer stream that can be written to to fill a buffer, and read
+ * from to remove bytes from the buffer.
+ *
+ * This stream returns a "hwm" metadata value that tells upstream consumers
+ * what the configured high water mark of the stream is, or the maximum
+ * preferred size of the buffer.
+ */
+class BufferStream implements StreamInterface
+{
+    private $hwm;
+    private $buffer = '';
+
+    /**
+     * @param int $hwm High water mark, representing the preferred maximum
+     *                 buffer size. If the size of the buffer exceeds the high
+     *                 water mark, then calls to write will continue to succeed
+     *                 but will return false to inform writers to slow down
+     *                 until the buffer has been drained by reading from it.
+     */
+    public function __construct($hwm = 16384)
+    {
+        $this->hwm = $hwm;
+    }
+
+    public function __toString()
+    {
+        return $this->getContents();
+    }
+
+    public function getContents()
+    {
+        $buffer = $this->buffer;
+        $this->buffer = '';
+
+        return $buffer;
+    }
+
+    public function close()
+    {
+        $this->buffer = '';
+    }
+
+    public function detach()
+    {
+        $this->close();
+    }
+
+    public function getSize()
+    {
+        return strlen($this->buffer);
+    }
+
+    public function isReadable()
+    {
+        return true;
+    }
+
+    public function isWritable()
+    {
+        return true;
+    }
+
+    public function isSeekable()
+    {
+        return false;
+    }
+
+    public function rewind()
+    {
+        $this->seek(0);
+    }
+
+    public function seek($offset, $whence = SEEK_SET)
+    {
+        throw new \RuntimeException('Cannot seek a BufferStream');
+    }
+
+    public function eof()
+    {
+        return strlen($this->buffer) === 0;
+    }
+
+    public function tell()
+    {
+        throw new \RuntimeException('Cannot determine the position of a BufferStream');
+    }
+
+    /**
+     * Reads data from the buffer.
+     */
+    public function read($length)
+    {
+        $currentLength = strlen($this->buffer);
+
+        if ($length >= $currentLength) {
+            // No need to slice the buffer because we don't have enough data.
+            $result = $this->buffer;
+            $this->buffer = '';
+        } else {
+            // Slice up the result to provide a subset of the buffer.
+            $result = substr($this->buffer, 0, $length);
+            $this->buffer = substr($this->buffer, $length);
+        }
+
+        return $result;
+    }
+
+    /**
+     * Writes data to the buffer.
+     */
+    public function write($string)
+    {
+        $this->buffer .= $string;
+
+        // TODO: What should happen here?
+        if (strlen($this->buffer) >= $this->hwm) {
+            return false;
+        }
+
+        return strlen($string);
+    }
+
+    public function getMetadata($key = null)
+    {
+        if ($key == 'hwm') {
+            return $this->hwm;
+        }
+
+        return $key ? null : [];
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/CachingStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/CachingStream.php
new file mode 100644
index 0000000..ed68f08
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/CachingStream.php
@@ -0,0 +1,138 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Stream decorator that can cache previously read bytes from a sequentially
+ * read stream.
+ */
+class CachingStream implements StreamInterface
+{
+    use StreamDecoratorTrait;
+
+    /** @var StreamInterface Stream being wrapped */
+    private $remoteStream;
+
+    /** @var int Number of bytes to skip reading due to a write on the buffer */
+    private $skipReadBytes = 0;
+
+    /**
+     * We will treat the buffer object as the body of the stream
+     *
+     * @param StreamInterface $stream Stream to cache
+     * @param StreamInterface $target Optionally specify where data is cached
+     */
+    public function __construct(
+        StreamInterface $stream,
+        StreamInterface $target = null
+    ) {
+        $this->remoteStream = $stream;
+        $this->stream = $target ?: new Stream(fopen('php://temp', 'r+'));
+    }
+
+    public function getSize()
+    {
+        return max($this->stream->getSize(), $this->remoteStream->getSize());
+    }
+
+    public function rewind()
+    {
+        $this->seek(0);
+    }
+
+    public function seek($offset, $whence = SEEK_SET)
+    {
+        if ($whence == SEEK_SET) {
+            $byte = $offset;
+        } elseif ($whence == SEEK_CUR) {
+            $byte = $offset + $this->tell();
+        } elseif ($whence == SEEK_END) {
+            $size = $this->remoteStream->getSize();
+            if ($size === null) {
+                $size = $this->cacheEntireStream();
+            }
+            $byte = $size + $offset;
+        } else {
+            throw new \InvalidArgumentException('Invalid whence');
+        }
+
+        $diff = $byte - $this->stream->getSize();
+
+        if ($diff > 0) {
+            // Read the remoteStream until we have read in at least the amount
+            // of bytes requested, or we reach the end of the file.
+            while ($diff > 0 && !$this->remoteStream->eof()) {
+                $this->read($diff);
+                $diff = $byte - $this->stream->getSize();
+            }
+        } else {
+            // We can just do a normal seek since we've already seen this byte.
+            $this->stream->seek($byte);
+        }
+    }
+
+    public function read($length)
+    {
+        // Perform a regular read on any previously read data from the buffer
+        $data = $this->stream->read($length);
+        $remaining = $length - strlen($data);
+
+        // More data was requested so read from the remote stream
+        if ($remaining) {
+            // If data was written to the buffer in a position that would have
+            // been filled from the remote stream, then we must skip bytes on
+            // the remote stream to emulate overwriting bytes from that
+            // position. This mimics the behavior of other PHP stream wrappers.
+            $remoteData = $this->remoteStream->read(
+                $remaining + $this->skipReadBytes
+            );
+
+            if ($this->skipReadBytes) {
+                $len = strlen($remoteData);
+                $remoteData = substr($remoteData, $this->skipReadBytes);
+                $this->skipReadBytes = max(0, $this->skipReadBytes - $len);
+            }
+
+            $data .= $remoteData;
+            $this->stream->write($remoteData);
+        }
+
+        return $data;
+    }
+
+    public function write($string)
+    {
+        // When appending to the end of the currently read stream, you'll want
+        // to skip bytes from being read from the remote stream to emulate
+        // other stream wrappers. Basically replacing bytes of data of a fixed
+        // length.
+        $overflow = (strlen($string) + $this->tell()) - $this->remoteStream->tell();
+        if ($overflow > 0) {
+            $this->skipReadBytes += $overflow;
+        }
+
+        return $this->stream->write($string);
+    }
+
+    public function eof()
+    {
+        return $this->stream->eof() && $this->remoteStream->eof();
+    }
+
+    /**
+     * Close both the remote stream and buffer stream
+     */
+    public function close()
+    {
+        $this->remoteStream->close() && $this->stream->close();
+    }
+
+    private function cacheEntireStream()
+    {
+        $target = new FnStream(['write' => 'strlen']);
+        copy_to_stream($this, $target);
+
+        return $this->tell();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/DroppingStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/DroppingStream.php
new file mode 100644
index 0000000..8935c80
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/DroppingStream.php
@@ -0,0 +1,42 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Stream decorator that begins dropping data once the size of the underlying
+ * stream becomes too full.
+ */
+class DroppingStream implements StreamInterface
+{
+    use StreamDecoratorTrait;
+
+    private $maxLength;
+
+    /**
+     * @param StreamInterface $stream    Underlying stream to decorate.
+     * @param int             $maxLength Maximum size before dropping data.
+     */
+    public function __construct(StreamInterface $stream, $maxLength)
+    {
+        $this->stream = $stream;
+        $this->maxLength = $maxLength;
+    }
+
+    public function write($string)
+    {
+        $diff = $this->maxLength - $this->stream->getSize();
+
+        // Begin returning 0 when the underlying stream is too large.
+        if ($diff <= 0) {
+            return 0;
+        }
+
+        // Write the stream or a subset of the stream if needed.
+        if (strlen($string) < $diff) {
+            return $this->stream->write($string);
+        }
+
+        return $this->stream->write(substr($string, 0, $diff));
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/FnStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/FnStream.php
new file mode 100644
index 0000000..cc9b445
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/FnStream.php
@@ -0,0 +1,149 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Compose stream implementations based on a hash of functions.
+ *
+ * Allows for easy testing and extension of a provided stream without needing
+ * to create a concrete class for a simple extension point.
+ */
+class FnStream implements StreamInterface
+{
+    /** @var array */
+    private $methods;
+
+    /** @var array Methods that must be implemented in the given array */
+    private static $slots = ['__toString', 'close', 'detach', 'rewind',
+        'getSize', 'tell', 'eof', 'isSeekable', 'seek', 'isWritable', 'write',
+        'isReadable', 'read', 'getContents', 'getMetadata'];
+
+    /**
+     * @param array $methods Hash of method name to a callable.
+     */
+    public function __construct(array $methods)
+    {
+        $this->methods = $methods;
+
+        // Create the functions on the class
+        foreach ($methods as $name => $fn) {
+            $this->{'_fn_' . $name} = $fn;
+        }
+    }
+
+    /**
+     * Lazily determine which methods are not implemented.
+     * @throws \BadMethodCallException
+     */
+    public function __get($name)
+    {
+        throw new \BadMethodCallException(str_replace('_fn_', '', $name)
+            . '() is not implemented in the FnStream');
+    }
+
+    /**
+     * The close method is called on the underlying stream only if possible.
+     */
+    public function __destruct()
+    {
+        if (isset($this->_fn_close)) {
+            call_user_func($this->_fn_close);
+        }
+    }
+
+    /**
+     * Adds custom functionality to an underlying stream by intercepting
+     * specific method calls.
+     *
+     * @param StreamInterface $stream  Stream to decorate
+     * @param array           $methods Hash of method name to a closure
+     *
+     * @return FnStream
+     */
+    public static function decorate(StreamInterface $stream, array $methods)
+    {
+        // If any of the required methods were not provided, then simply
+        // proxy to the decorated stream.
+        foreach (array_diff(self::$slots, array_keys($methods)) as $diff) {
+            $methods[$diff] = [$stream, $diff];
+        }
+
+        return new self($methods);
+    }
+
+    public function __toString()
+    {
+        return call_user_func($this->_fn___toString);
+    }
+
+    public function close()
+    {
+        return call_user_func($this->_fn_close);
+    }
+
+    public function detach()
+    {
+        return call_user_func($this->_fn_detach);
+    }
+
+    public function getSize()
+    {
+        return call_user_func($this->_fn_getSize);
+    }
+
+    public function tell()
+    {
+        return call_user_func($this->_fn_tell);
+    }
+
+    public function eof()
+    {
+        return call_user_func($this->_fn_eof);
+    }
+
+    public function isSeekable()
+    {
+        return call_user_func($this->_fn_isSeekable);
+    }
+
+    public function rewind()
+    {
+        call_user_func($this->_fn_rewind);
+    }
+
+    public function seek($offset, $whence = SEEK_SET)
+    {
+        call_user_func($this->_fn_seek, $offset, $whence);
+    }
+
+    public function isWritable()
+    {
+        return call_user_func($this->_fn_isWritable);
+    }
+
+    public function write($string)
+    {
+        return call_user_func($this->_fn_write, $string);
+    }
+
+    public function isReadable()
+    {
+        return call_user_func($this->_fn_isReadable);
+    }
+
+    public function read($length)
+    {
+        return call_user_func($this->_fn_read, $length);
+    }
+
+    public function getContents()
+    {
+        return call_user_func($this->_fn_getContents);
+    }
+
+    public function getMetadata($key = null)
+    {
+        return call_user_func($this->_fn_getMetadata, $key);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/InflateStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/InflateStream.php
new file mode 100644
index 0000000..0051d3f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/InflateStream.php
@@ -0,0 +1,52 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Uses PHP's zlib.inflate filter to inflate deflate or gzipped content.
+ *
+ * This stream decorator skips the first 10 bytes of the given stream to remove
+ * the gzip header, converts the provided stream to a PHP stream resource,
+ * then appends the zlib.inflate filter. The stream is then converted back
+ * to a Guzzle stream resource to be used as a Guzzle stream.
+ *
+ * @link http://tools.ietf.org/html/rfc1952
+ * @link http://php.net/manual/en/filters.compression.php
+ */
+class InflateStream implements StreamInterface
+{
+    use StreamDecoratorTrait;
+
+    public function __construct(StreamInterface $stream)
+    {
+        // read the first 10 bytes, ie. gzip header
+        $header = $stream->read(10);
+        $filenameHeaderLength = $this->getLengthOfPossibleFilenameHeader($stream, $header);
+        // Skip the header, that is 10 + length of filename + 1 (nil) bytes
+        $stream = new LimitStream($stream, -1, 10 + $filenameHeaderLength);
+        $resource = StreamWrapper::getResource($stream);
+        stream_filter_append($resource, 'zlib.inflate', STREAM_FILTER_READ);
+        $this->stream = new Stream($resource);
+    }
+
+    /**
+     * @param StreamInterface $stream
+     * @param $header
+     * @return int
+     */
+    private function getLengthOfPossibleFilenameHeader(StreamInterface $stream, $header)
+    {
+        $filename_header_length = 0;
+
+        if (substr(bin2hex($header), 6, 2) === '08') {
+            // we have a filename, read until nil
+            $filename_header_length = 1;
+            while ($stream->read(1) !== chr(0)) {
+                $filename_header_length++;
+            }
+        }
+
+        return $filename_header_length;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/LazyOpenStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/LazyOpenStream.php
new file mode 100644
index 0000000..02cec3a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/LazyOpenStream.php
@@ -0,0 +1,39 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Lazily reads or writes to a file that is opened only after an IO operation
+ * take place on the stream.
+ */
+class LazyOpenStream implements StreamInterface
+{
+    use StreamDecoratorTrait;
+
+    /** @var string File to open */
+    private $filename;
+
+    /** @var string $mode */
+    private $mode;
+
+    /**
+     * @param string $filename File to lazily open
+     * @param string $mode     fopen mode to use when opening the stream
+     */
+    public function __construct($filename, $mode)
+    {
+        $this->filename = $filename;
+        $this->mode = $mode;
+    }
+
+    /**
+     * Creates the underlying stream lazily when required.
+     *
+     * @return StreamInterface
+     */
+    protected function createStream()
+    {
+        return stream_for(try_fopen($this->filename, $this->mode));
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/LimitStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/LimitStream.php
new file mode 100644
index 0000000..3c13d4f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/LimitStream.php
@@ -0,0 +1,155 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+
+/**
+ * Decorator used to return only a subset of a stream
+ */
+class LimitStream implements StreamInterface
+{
+    use StreamDecoratorTrait;
+
+    /** @var int Offset to start reading from */
+    private $offset;
+
+    /** @var int Limit the number of bytes that can be read */
+    private $limit;
+
+    /**
+     * @param StreamInterface $stream Stream to wrap
+     * @param int             $limit  Total number of bytes to allow to be read
+     *                                from the stream. Pass -1 for no limit.
+     * @param int             $offset Position to seek to before reading (only
+     *                                works on seekable streams).
+     */
+    public function __construct(
+        StreamInterface $stream,
+        $limit = -1,
+        $offset = 0
+    ) {
+        $this->stream = $stream;
+        $this->setLimit($limit);
+        $this->setOffset($offset);
+    }
+
+    public function eof()
+    {
+        // Always return true if the underlying stream is EOF
+        if ($this->stream->eof()) {
+            return true;
+        }
+
+        // No limit and the underlying stream is not at EOF
+        if ($this->limit == -1) {
+            return false;
+        }
+
+        return $this->stream->tell() >= $this->offset + $this->limit;
+    }
+
+    /**
+     * Returns the size of the limited subset of data
+     * {@inheritdoc}
+     */
+    public function getSize()
+    {
+        if (null === ($length = $this->stream->getSize())) {
+            return null;
+        } elseif ($this->limit == -1) {
+            return $length - $this->offset;
+        } else {
+            return min($this->limit, $length - $this->offset);
+        }
+    }
+
+    /**
+     * Allow for a bounded seek on the read limited stream
+     * {@inheritdoc}
+     */
+    public function seek($offset, $whence = SEEK_SET)
+    {
+        if ($whence !== SEEK_SET || $offset < 0) {
+            throw new \RuntimeException(sprintf(
+                'Cannot seek to offset % with whence %s',
+                $offset,
+                $whence
+            ));
+        }
+
+        $offset += $this->offset;
+
+        if ($this->limit !== -1) {
+            if ($offset > $this->offset + $this->limit) {
+                $offset = $this->offset + $this->limit;
+            }
+        }
+
+        $this->stream->seek($offset);
+    }
+
+    /**
+     * Give a relative tell()
+     * {@inheritdoc}
+     */
+    public function tell()
+    {
+        return $this->stream->tell() - $this->offset;
+    }
+
+    /**
+     * Set the offset to start limiting from
+     *
+     * @param int $offset Offset to seek to and begin byte limiting from
+     *
+     * @throws \RuntimeException if the stream cannot be seeked.
+     */
+    public function setOffset($offset)
+    {
+        $current = $this->stream->tell();
+
+        if ($current !== $offset) {
+            // If the stream cannot seek to the offset position, then read to it
+            if ($this->stream->isSeekable()) {
+                $this->stream->seek($offset);
+            } elseif ($current > $offset) {
+                throw new \RuntimeException("Could not seek to stream offset $offset");
+            } else {
+                $this->stream->read($offset - $current);
+            }
+        }
+
+        $this->offset = $offset;
+    }
+
+    /**
+     * Set the limit of bytes that the decorator allows to be read from the
+     * stream.
+     *
+     * @param int $limit Number of bytes to allow to be read from the stream.
+     *                   Use -1 for no limit.
+     */
+    public function setLimit($limit)
+    {
+        $this->limit = $limit;
+    }
+
+    public function read($length)
+    {
+        if ($this->limit == -1) {
+            return $this->stream->read($length);
+        }
+
+        // Check if the current position is less than the total allowed
+        // bytes + original offset
+        $remaining = ($this->offset + $this->limit) - $this->stream->tell();
+        if ($remaining > 0) {
+            // Only return the amount of requested data, ensuring that the byte
+            // limit is not exceeded
+            return $this->stream->read(min($remaining, $length));
+        }
+
+        return '';
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/MessageTrait.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/MessageTrait.php
new file mode 100644
index 0000000..1e4da64
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/MessageTrait.php
@@ -0,0 +1,183 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Trait implementing functionality common to requests and responses.
+ */
+trait MessageTrait
+{
+    /** @var array Map of all registered headers, as original name => array of values */
+    private $headers = [];
+
+    /** @var array Map of lowercase header name => original name at registration */
+    private $headerNames  = [];
+
+    /** @var string */
+    private $protocol = '1.1';
+
+    /** @var StreamInterface */
+    private $stream;
+
+    public function getProtocolVersion()
+    {
+        return $this->protocol;
+    }
+
+    public function withProtocolVersion($version)
+    {
+        if ($this->protocol === $version) {
+            return $this;
+        }
+
+        $new = clone $this;
+        $new->protocol = $version;
+        return $new;
+    }
+
+    public function getHeaders()
+    {
+        return $this->headers;
+    }
+
+    public function hasHeader($header)
+    {
+        return isset($this->headerNames[strtolower($header)]);
+    }
+
+    public function getHeader($header)
+    {
+        $header = strtolower($header);
+
+        if (!isset($this->headerNames[$header])) {
+            return [];
+        }
+
+        $header = $this->headerNames[$header];
+
+        return $this->headers[$header];
+    }
+
+    public function getHeaderLine($header)
+    {
+        return implode(', ', $this->getHeader($header));
+    }
+
+    public function withHeader($header, $value)
+    {
+        if (!is_array($value)) {
+            $value = [$value];
+        }
+
+        $value = $this->trimHeaderValues($value);
+        $normalized = strtolower($header);
+
+        $new = clone $this;
+        if (isset($new->headerNames[$normalized])) {
+            unset($new->headers[$new->headerNames[$normalized]]);
+        }
+        $new->headerNames[$normalized] = $header;
+        $new->headers[$header] = $value;
+
+        return $new;
+    }
+
+    public function withAddedHeader($header, $value)
+    {
+        if (!is_array($value)) {
+            $value = [$value];
+        }
+
+        $value = $this->trimHeaderValues($value);
+        $normalized = strtolower($header);
+
+        $new = clone $this;
+        if (isset($new->headerNames[$normalized])) {
+            $header = $this->headerNames[$normalized];
+            $new->headers[$header] = array_merge($this->headers[$header], $value);
+        } else {
+            $new->headerNames[$normalized] = $header;
+            $new->headers[$header] = $value;
+        }
+
+        return $new;
+    }
+
+    public function withoutHeader($header)
+    {
+        $normalized = strtolower($header);
+
+        if (!isset($this->headerNames[$normalized])) {
+            return $this;
+        }
+
+        $header = $this->headerNames[$normalized];
+
+        $new = clone $this;
+        unset($new->headers[$header], $new->headerNames[$normalized]);
+
+        return $new;
+    }
+
+    public function getBody()
+    {
+        if (!$this->stream) {
+            $this->stream = stream_for('');
+        }
+
+        return $this->stream;
+    }
+
+    public function withBody(StreamInterface $body)
+    {
+        if ($body === $this->stream) {
+            return $this;
+        }
+
+        $new = clone $this;
+        $new->stream = $body;
+        return $new;
+    }
+
+    private function setHeaders(array $headers)
+    {
+        $this->headerNames = $this->headers = [];
+        foreach ($headers as $header => $value) {
+            if (!is_array($value)) {
+                $value = [$value];
+            }
+
+            $value = $this->trimHeaderValues($value);
+            $normalized = strtolower($header);
+            if (isset($this->headerNames[$normalized])) {
+                $header = $this->headerNames[$normalized];
+                $this->headers[$header] = array_merge($this->headers[$header], $value);
+            } else {
+                $this->headerNames[$normalized] = $header;
+                $this->headers[$header] = $value;
+            }
+        }
+    }
+
+    /**
+     * Trims whitespace from the header values.
+     *
+     * Spaces and tabs ought to be excluded by parsers when extracting the field value from a header field.
+     *
+     * header-field = field-name ":" OWS field-value OWS
+     * OWS          = *( SP / HTAB )
+     *
+     * @param string[] $values Header values
+     *
+     * @return string[] Trimmed header values
+     *
+     * @see https://tools.ietf.org/html/rfc7230#section-3.2.4
+     */
+    private function trimHeaderValues(array $values)
+    {
+        return array_map(function ($value) {
+            return trim($value, " \t");
+        }, $values);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/MultipartStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/MultipartStream.php
new file mode 100644
index 0000000..c0fd584
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/MultipartStream.php
@@ -0,0 +1,153 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Stream that when read returns bytes for a streaming multipart or
+ * multipart/form-data stream.
+ */
+class MultipartStream implements StreamInterface
+{
+    use StreamDecoratorTrait;
+
+    private $boundary;
+
+    /**
+     * @param array  $elements Array of associative arrays, each containing a
+     *                         required "name" key mapping to the form field,
+     *                         name, a required "contents" key mapping to a
+     *                         StreamInterface/resource/string, an optional
+     *                         "headers" associative array of custom headers,
+     *                         and an optional "filename" key mapping to a
+     *                         string to send as the filename in the part.
+     * @param string $boundary You can optionally provide a specific boundary
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function __construct(array $elements = [], $boundary = null)
+    {
+        $this->boundary = $boundary ?: sha1(uniqid('', true));
+        $this->stream = $this->createStream($elements);
+    }
+
+    /**
+     * Get the boundary
+     *
+     * @return string
+     */
+    public function getBoundary()
+    {
+        return $this->boundary;
+    }
+
+    public function isWritable()
+    {
+        return false;
+    }
+
+    /**
+     * Get the headers needed before transferring the content of a POST file
+     */
+    private function getHeaders(array $headers)
+    {
+        $str = '';
+        foreach ($headers as $key => $value) {
+            $str .= "{$key}: {$value}\r\n";
+        }
+
+        return "--{$this->boundary}\r\n" . trim($str) . "\r\n\r\n";
+    }
+
+    /**
+     * Create the aggregate stream that will be used to upload the POST data
+     */
+    protected function createStream(array $elements)
+    {
+        $stream = new AppendStream();
+
+        foreach ($elements as $element) {
+            $this->addElement($stream, $element);
+        }
+
+        // Add the trailing boundary with CRLF
+        $stream->addStream(stream_for("--{$this->boundary}--\r\n"));
+
+        return $stream;
+    }
+
+    private function addElement(AppendStream $stream, array $element)
+    {
+        foreach (['contents', 'name'] as $key) {
+            if (!array_key_exists($key, $element)) {
+                throw new \InvalidArgumentException("A '{$key}' key is required");
+            }
+        }
+
+        $element['contents'] = stream_for($element['contents']);
+
+        if (empty($element['filename'])) {
+            $uri = $element['contents']->getMetadata('uri');
+            if (substr($uri, 0, 6) !== 'php://') {
+                $element['filename'] = $uri;
+            }
+        }
+
+        list($body, $headers) = $this->createElement(
+            $element['name'],
+            $element['contents'],
+            isset($element['filename']) ? $element['filename'] : null,
+            isset($element['headers']) ? $element['headers'] : []
+        );
+
+        $stream->addStream(stream_for($this->getHeaders($headers)));
+        $stream->addStream($body);
+        $stream->addStream(stream_for("\r\n"));
+    }
+
+    /**
+     * @return array
+     */
+    private function createElement($name, StreamInterface $stream, $filename, array $headers)
+    {
+        // Set a default content-disposition header if one was no provided
+        $disposition = $this->getHeader($headers, 'content-disposition');
+        if (!$disposition) {
+            $headers['Content-Disposition'] = ($filename === '0' || $filename)
+                ? sprintf('form-data; name="%s"; filename="%s"',
+                    $name,
+                    basename($filename))
+                : "form-data; name=\"{$name}\"";
+        }
+
+        // Set a default content-length header if one was no provided
+        $length = $this->getHeader($headers, 'content-length');
+        if (!$length) {
+            if ($length = $stream->getSize()) {
+                $headers['Content-Length'] = (string) $length;
+            }
+        }
+
+        // Set a default Content-Type if one was not supplied
+        $type = $this->getHeader($headers, 'content-type');
+        if (!$type && ($filename === '0' || $filename)) {
+            if ($type = mimetype_from_filename($filename)) {
+                $headers['Content-Type'] = $type;
+            }
+        }
+
+        return [$stream, $headers];
+    }
+
+    private function getHeader(array $headers, $key)
+    {
+        $lowercaseHeader = strtolower($key);
+        foreach ($headers as $k => $v) {
+            if (strtolower($k) === $lowercaseHeader) {
+                return $v;
+            }
+        }
+
+        return null;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/NoSeekStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/NoSeekStream.php
new file mode 100644
index 0000000..2332218
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/NoSeekStream.php
@@ -0,0 +1,22 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Stream decorator that prevents a stream from being seeked
+ */
+class NoSeekStream implements StreamInterface
+{
+    use StreamDecoratorTrait;
+
+    public function seek($offset, $whence = SEEK_SET)
+    {
+        throw new \RuntimeException('Cannot seek a NoSeekStream');
+    }
+
+    public function isSeekable()
+    {
+        return false;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/PumpStream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/PumpStream.php
new file mode 100644
index 0000000..ffb5440
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/PumpStream.php
@@ -0,0 +1,165 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Provides a read only stream that pumps data from a PHP callable.
+ *
+ * When invoking the provided callable, the PumpStream will pass the amount of
+ * data requested to read to the callable. The callable can choose to ignore
+ * this value and return fewer or more bytes than requested. Any extra data
+ * returned by the provided callable is buffered internally until drained using
+ * the read() function of the PumpStream. The provided callable MUST return
+ * false when there is no more data to read.
+ */
+class PumpStream implements StreamInterface
+{
+    /** @var callable */
+    private $source;
+
+    /** @var int */
+    private $size;
+
+    /** @var int */
+    private $tellPos = 0;
+
+    /** @var array */
+    private $metadata;
+
+    /** @var BufferStream */
+    private $buffer;
+
+    /**
+     * @param callable $source Source of the stream data. The callable MAY
+     *                         accept an integer argument used to control the
+     *                         amount of data to return. The callable MUST
+     *                         return a string when called, or false on error
+     *                         or EOF.
+     * @param array $options   Stream options:
+     *                         - metadata: Hash of metadata to use with stream.
+     *                         - size: Size of the stream, if known.
+     */
+    public function __construct(callable $source, array $options = [])
+    {
+        $this->source = $source;
+        $this->size = isset($options['size']) ? $options['size'] : null;
+        $this->metadata = isset($options['metadata']) ? $options['metadata'] : [];
+        $this->buffer = new BufferStream();
+    }
+
+    public function __toString()
+    {
+        try {
+            return copy_to_string($this);
+        } catch (\Exception $e) {
+            return '';
+        }
+    }
+
+    public function close()
+    {
+        $this->detach();
+    }
+
+    public function detach()
+    {
+        $this->tellPos = false;
+        $this->source = null;
+    }
+
+    public function getSize()
+    {
+        return $this->size;
+    }
+
+    public function tell()
+    {
+        return $this->tellPos;
+    }
+
+    public function eof()
+    {
+        return !$this->source;
+    }
+
+    public function isSeekable()
+    {
+        return false;
+    }
+
+    public function rewind()
+    {
+        $this->seek(0);
+    }
+
+    public function seek($offset, $whence = SEEK_SET)
+    {
+        throw new \RuntimeException('Cannot seek a PumpStream');
+    }
+
+    public function isWritable()
+    {
+        return false;
+    }
+
+    public function write($string)
+    {
+        throw new \RuntimeException('Cannot write to a PumpStream');
+    }
+
+    public function isReadable()
+    {
+        return true;
+    }
+
+    public function read($length)
+    {
+        $data = $this->buffer->read($length);
+        $readLen = strlen($data);
+        $this->tellPos += $readLen;
+        $remaining = $length - $readLen;
+
+        if ($remaining) {
+            $this->pump($remaining);
+            $data .= $this->buffer->read($remaining);
+            $this->tellPos += strlen($data) - $readLen;
+        }
+
+        return $data;
+    }
+
+    public function getContents()
+    {
+        $result = '';
+        while (!$this->eof()) {
+            $result .= $this->read(1000000);
+        }
+
+        return $result;
+    }
+
+    public function getMetadata($key = null)
+    {
+        if (!$key) {
+            return $this->metadata;
+        }
+
+        return isset($this->metadata[$key]) ? $this->metadata[$key] : null;
+    }
+
+    private function pump($length)
+    {
+        if ($this->source) {
+            do {
+                $data = call_user_func($this->source, $length);
+                if ($data === false || $data === null) {
+                    $this->source = null;
+                    return;
+                }
+                $this->buffer->write($data);
+                $length -= strlen($data);
+            } while ($length > 0);
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Request.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Request.php
new file mode 100644
index 0000000..0828548
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Request.php
@@ -0,0 +1,142 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use InvalidArgumentException;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\StreamInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * PSR-7 request implementation.
+ */
+class Request implements RequestInterface
+{
+    use MessageTrait;
+
+    /** @var string */
+    private $method;
+
+    /** @var null|string */
+    private $requestTarget;
+
+    /** @var UriInterface */
+    private $uri;
+
+    /**
+     * @param string                               $method  HTTP method
+     * @param string|UriInterface                  $uri     URI
+     * @param array                                $headers Request headers
+     * @param string|null|resource|StreamInterface $body    Request body
+     * @param string                               $version Protocol version
+     */
+    public function __construct(
+        $method,
+        $uri,
+        array $headers = [],
+        $body = null,
+        $version = '1.1'
+    ) {
+        if (!($uri instanceof UriInterface)) {
+            $uri = new Uri($uri);
+        }
+
+        $this->method = strtoupper($method);
+        $this->uri = $uri;
+        $this->setHeaders($headers);
+        $this->protocol = $version;
+
+        if (!$this->hasHeader('Host')) {
+            $this->updateHostFromUri();
+        }
+
+        if ($body !== '' && $body !== null) {
+            $this->stream = stream_for($body);
+        }
+    }
+
+    public function getRequestTarget()
+    {
+        if ($this->requestTarget !== null) {
+            return $this->requestTarget;
+        }
+
+        $target = $this->uri->getPath();
+        if ($target == '') {
+            $target = '/';
+        }
+        if ($this->uri->getQuery() != '') {
+            $target .= '?' . $this->uri->getQuery();
+        }
+
+        return $target;
+    }
+
+    public function withRequestTarget($requestTarget)
+    {
+        if (preg_match('#\s#', $requestTarget)) {
+            throw new InvalidArgumentException(
+                'Invalid request target provided; cannot contain whitespace'
+            );
+        }
+
+        $new = clone $this;
+        $new->requestTarget = $requestTarget;
+        return $new;
+    }
+
+    public function getMethod()
+    {
+        return $this->method;
+    }
+
+    public function withMethod($method)
+    {
+        $new = clone $this;
+        $new->method = strtoupper($method);
+        return $new;
+    }
+
+    public function getUri()
+    {
+        return $this->uri;
+    }
+
+    public function withUri(UriInterface $uri, $preserveHost = false)
+    {
+        if ($uri === $this->uri) {
+            return $this;
+        }
+
+        $new = clone $this;
+        $new->uri = $uri;
+
+        if (!$preserveHost) {
+            $new->updateHostFromUri();
+        }
+
+        return $new;
+    }
+
+    private function updateHostFromUri()
+    {
+        $host = $this->uri->getHost();
+
+        if ($host == '') {
+            return;
+        }
+
+        if (($port = $this->uri->getPort()) !== null) {
+            $host .= ':' . $port;
+        }
+
+        if (isset($this->headerNames['host'])) {
+            $header = $this->headerNames['host'];
+        } else {
+            $header = 'Host';
+            $this->headerNames['host'] = 'Host';
+        }
+        // Ensure Host is the first header.
+        // See: http://tools.ietf.org/html/rfc7230#section-5.4
+        $this->headers = [$header => [$host]] + $this->headers;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Response.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Response.php
new file mode 100644
index 0000000..2830c6c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Response.php
@@ -0,0 +1,132 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * PSR-7 response implementation.
+ */
+class Response implements ResponseInterface
+{
+    use MessageTrait;
+
+    /** @var array Map of standard HTTP status code/reason phrases */
+    private static $phrases = [
+        100 => 'Continue',
+        101 => 'Switching Protocols',
+        102 => 'Processing',
+        200 => 'OK',
+        201 => 'Created',
+        202 => 'Accepted',
+        203 => 'Non-Authoritative Information',
+        204 => 'No Content',
+        205 => 'Reset Content',
+        206 => 'Partial Content',
+        207 => 'Multi-status',
+        208 => 'Already Reported',
+        300 => 'Multiple Choices',
+        301 => 'Moved Permanently',
+        302 => 'Found',
+        303 => 'See Other',
+        304 => 'Not Modified',
+        305 => 'Use Proxy',
+        306 => 'Switch Proxy',
+        307 => 'Temporary Redirect',
+        400 => 'Bad Request',
+        401 => 'Unauthorized',
+        402 => 'Payment Required',
+        403 => 'Forbidden',
+        404 => 'Not Found',
+        405 => 'Method Not Allowed',
+        406 => 'Not Acceptable',
+        407 => 'Proxy Authentication Required',
+        408 => 'Request Time-out',
+        409 => 'Conflict',
+        410 => 'Gone',
+        411 => 'Length Required',
+        412 => 'Precondition Failed',
+        413 => 'Request Entity Too Large',
+        414 => 'Request-URI Too Large',
+        415 => 'Unsupported Media Type',
+        416 => 'Requested range not satisfiable',
+        417 => 'Expectation Failed',
+        418 => 'I\'m a teapot',
+        422 => 'Unprocessable Entity',
+        423 => 'Locked',
+        424 => 'Failed Dependency',
+        425 => 'Unordered Collection',
+        426 => 'Upgrade Required',
+        428 => 'Precondition Required',
+        429 => 'Too Many Requests',
+        431 => 'Request Header Fields Too Large',
+        451 => 'Unavailable For Legal Reasons',
+        500 => 'Internal Server Error',
+        501 => 'Not Implemented',
+        502 => 'Bad Gateway',
+        503 => 'Service Unavailable',
+        504 => 'Gateway Time-out',
+        505 => 'HTTP Version not supported',
+        506 => 'Variant Also Negotiates',
+        507 => 'Insufficient Storage',
+        508 => 'Loop Detected',
+        511 => 'Network Authentication Required',
+    ];
+
+    /** @var string */
+    private $reasonPhrase = '';
+
+    /** @var int */
+    private $statusCode = 200;
+
+    /**
+     * @param int                                  $status  Status code
+     * @param array                                $headers Response headers
+     * @param string|null|resource|StreamInterface $body    Response body
+     * @param string                               $version Protocol version
+     * @param string|null                          $reason  Reason phrase (when empty a default will be used based on the status code)
+     */
+    public function __construct(
+        $status = 200,
+        array $headers = [],
+        $body = null,
+        $version = '1.1',
+        $reason = null
+    ) {
+        $this->statusCode = (int) $status;
+
+        if ($body !== '' && $body !== null) {
+            $this->stream = stream_for($body);
+        }
+
+        $this->setHeaders($headers);
+        if ($reason == '' && isset(self::$phrases[$this->statusCode])) {
+            $this->reasonPhrase = self::$phrases[$this->statusCode];
+        } else {
+            $this->reasonPhrase = (string) $reason;
+        }
+
+        $this->protocol = $version;
+    }
+
+    public function getStatusCode()
+    {
+        return $this->statusCode;
+    }
+
+    public function getReasonPhrase()
+    {
+        return $this->reasonPhrase;
+    }
+
+    public function withStatus($code, $reasonPhrase = '')
+    {
+        $new = clone $this;
+        $new->statusCode = (int) $code;
+        if ($reasonPhrase == '' && isset(self::$phrases[$new->statusCode])) {
+            $reasonPhrase = self::$phrases[$new->statusCode];
+        }
+        $new->reasonPhrase = $reasonPhrase;
+        return $new;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/ServerRequest.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/ServerRequest.php
new file mode 100644
index 0000000..575aab8
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/ServerRequest.php
@@ -0,0 +1,358 @@
+<?php
+
+namespace GuzzleHttp\Psr7;
+
+use InvalidArgumentException;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Message\UriInterface;
+use Psr\Http\Message\StreamInterface;
+use Psr\Http\Message\UploadedFileInterface;
+
+/**
+ * Server-side HTTP request
+ *
+ * Extends the Request definition to add methods for accessing incoming data,
+ * specifically server parameters, cookies, matched path parameters, query
+ * string arguments, body parameters, and upload file information.
+ *
+ * "Attributes" are discovered via decomposing the request (and usually
+ * specifically the URI path), and typically will be injected by the application.
+ *
+ * Requests are considered immutable; all methods that might change state are
+ * implemented such that they retain the internal state of the current
+ * message and return a new instance that contains the changed state.
+ */
+class ServerRequest extends Request implements ServerRequestInterface
+{
+    /**
+     * @var array
+     */
+    private $attributes = [];
+
+    /**
+     * @var array
+     */
+    private $cookieParams = [];
+
+    /**
+     * @var null|array|object
+     */
+    private $parsedBody;
+
+    /**
+     * @var array
+     */
+    private $queryParams = [];
+
+    /**
+     * @var array
+     */
+    private $serverParams;
+
+    /**
+     * @var array
+     */
+    private $uploadedFiles = [];
+
+    /**
+     * @param string                               $method       HTTP method
+     * @param string|UriInterface                  $uri          URI
+     * @param array                                $headers      Request headers
+     * @param string|null|resource|StreamInterface $body         Request body
+     * @param string                               $version      Protocol version
+     * @param array                                $serverParams Typically the $_SERVER superglobal
+     */
+    public function __construct(
+        $method,
+        $uri,
+        array $headers = [],
+        $body = null,
+        $version = '1.1',
+        array $serverParams = []
+    ) {
+        $this->serverParams = $serverParams;
+
+        parent::__construct($method, $uri, $headers, $body, $version);
+    }
+
+    /**
+     * Return an UploadedFile instance array.
+     *
+     * @param array $files A array which respect $_FILES structure
+     * @throws InvalidArgumentException for unrecognized values
+     * @return array
+     */
+    public static function normalizeFiles(array $files)
+    {
+        $normalized = [];
+
+        foreach ($files as $key => $value) {
+            if ($value instanceof UploadedFileInterface) {
+                $normalized[$key] = $value;
+            } elseif (is_array($value) && isset($value['tmp_name'])) {
+                $normalized[$key] = self::createUploadedFileFromSpec($value);
+            } elseif (is_array($value)) {
+                $normalized[$key] = self::normalizeFiles($value);
+                continue;
+            } else {
+                throw new InvalidArgumentException('Invalid value in files specification');
+            }
+        }
+
+        return $normalized;
+    }
+
+    /**
+     * Create and return an UploadedFile instance from a $_FILES specification.
+     *
+     * If the specification represents an array of values, this method will
+     * delegate to normalizeNestedFileSpec() and return that return value.
+     *
+     * @param array $value $_FILES struct
+     * @return array|UploadedFileInterface
+     */
+    private static function createUploadedFileFromSpec(array $value)
+    {
+        if (is_array($value['tmp_name'])) {
+            return self::normalizeNestedFileSpec($value);
+        }
+
+        return new UploadedFile(
+            $value['tmp_name'],
+            (int) $value['size'],
+            (int) $value['error'],
+            $value['name'],
+            $value['type']
+        );
+    }
+
+    /**
+     * Normalize an array of file specifications.
+     *
+     * Loops through all nested files and returns a normalized array of
+     * UploadedFileInterface instances.
+     *
+     * @param array $files
+     * @return UploadedFileInterface[]
+     */
+    private static function normalizeNestedFileSpec(array $files = [])
+    {
+        $normalizedFiles = [];
+
+        foreach (array_keys($files['tmp_name']) as $key) {
+            $spec = [
+                'tmp_name' => $files['tmp_name'][$key],
+                'size'     => $files['size'][$key],
+                'error'    => $files['error'][$key],
+                'name'     => $files['name'][$key],
+                'type'     => $files['type'][$key],
+            ];
+            $normalizedFiles[$key] = self::createUploadedFileFromSpec($spec);
+        }
+
+        return $normalizedFiles;
+    }
+
+    /**
+     * Return a ServerRequest populated with superglobals:
+     * $_GET
+     * $_POST
+     * $_COOKIE
+     * $_FILES
+     * $_SERVER
+     *
+     * @return ServerRequestInterface
+     */
+    public static function fromGlobals()
+    {
+        $method = isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] : 'GET';
+        $headers = function_exists('getallheaders') ? getallheaders() : [];
+        $uri = self::getUriFromGlobals();
+        $body = new LazyOpenStream('php://input', 'r+');
+        $protocol = isset($_SERVER['SERVER_PROTOCOL']) ? str_replace('HTTP/', '', $_SERVER['SERVER_PROTOCOL']) : '1.1';
+
+        $serverRequest = new ServerRequest($method, $uri, $headers, $body, $protocol, $_SERVER);
+
+        return $serverRequest
+            ->withCookieParams($_COOKIE)
+            ->withQueryParams($_GET)
+            ->withParsedBody($_POST)
+            ->withUploadedFiles(self::normalizeFiles($_FILES));
+    }
+
+    /**
+     * Get a Uri populated with values from $_SERVER.
+     *
+     * @return UriInterface
+     */
+    public static function getUriFromGlobals() {
+        $uri = new Uri('');
+
+        $uri = $uri->withScheme(!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' ? 'https' : 'http');
+
+        $hasPort = false;
+        if (isset($_SERVER['HTTP_HOST'])) {
+            $hostHeaderParts = explode(':', $_SERVER['HTTP_HOST']);
+            $uri = $uri->withHost($hostHeaderParts[0]);
+            if (isset($hostHeaderParts[1])) {
+                $hasPort = true;
+                $uri = $uri->withPort($hostHeaderParts[1]);
+            }
+        } elseif (isset($_SERVER['SERVER_NAME'])) {
+            $uri = $uri->withHost($_SERVER['SERVER_NAME']);
+        } elseif (isset($_SERVER['SERVER_ADDR'])) {
+            $uri = $uri->withHost($_SERVER['SERVER_ADDR']);
+        }
+
+        if (!$hasPort && isset($_SERVER['SERVER_PORT'])) {
+            $uri = $uri->withPort($_SERVER['SERVER_PORT']);
+        }
+
+        $hasQuery = false;
+        if (isset($_SERVER['REQUEST_URI'])) {
+            $requestUriParts = explode('?', $_SERVER['REQUEST_URI']);
+            $uri = $uri->withPath($requestUriParts[0]);
+            if (isset($requestUriParts[1])) {
+                $hasQuery = true;
+                $uri = $uri->withQuery($requestUriParts[1]);
+            }
+        }
+
+        if (!$hasQuery && isset($_SERVER['QUERY_STRING'])) {
+            $uri = $uri->withQuery($_SERVER['QUERY_STRING']);
+        }
+
+        return $uri;
+    }
+
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getServerParams()
+    {
+        return $this->serverParams;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getUploadedFiles()
+    {
+        return $this->uploadedFiles;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function withUploadedFiles(array $uploadedFiles)
+    {
+        $new = clone $this;
+        $new->uploadedFiles = $uploadedFiles;
+
+        return $new;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getCookieParams()
+    {
+        return $this->cookieParams;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function withCookieParams(array $cookies)
+    {
+        $new = clone $this;
+        $new->cookieParams = $cookies;
+
+        return $new;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getQueryParams()
+    {
+        return $this->queryParams;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function withQueryParams(array $query)
+    {
+        $new = clone $this;
+        $new->queryParams = $query;
+
+        return $new;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getParsedBody()
+    {
+        return $this->parsedBody;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function withParsedBody($data)
+    {
+        $new = clone $this;
+        $new->parsedBody = $data;
+
+        return $new;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getAttributes()
+    {
+        return $this->attributes;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getAttribute($attribute, $default = null)
+    {
+        if (false === array_key_exists($attribute, $this->attributes)) {
+            return $default;
+        }
+
+        return $this->attributes[$attribute];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function withAttribute($attribute, $value)
+    {
+        $new = clone $this;
+        $new->attributes[$attribute] = $value;
+
+        return $new;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function withoutAttribute($attribute)
+    {
+        if (false === array_key_exists($attribute, $this->attributes)) {
+            return $this;
+        }
+
+        $new = clone $this;
+        unset($new->attributes[$attribute]);
+
+        return $new;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Stream.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Stream.php
new file mode 100644
index 0000000..e336628
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Stream.php
@@ -0,0 +1,257 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * PHP stream implementation.
+ *
+ * @var $stream
+ */
+class Stream implements StreamInterface
+{
+    private $stream;
+    private $size;
+    private $seekable;
+    private $readable;
+    private $writable;
+    private $uri;
+    private $customMetadata;
+
+    /** @var array Hash of readable and writable stream types */
+    private static $readWriteHash = [
+        'read' => [
+            'r' => true, 'w+' => true, 'r+' => true, 'x+' => true, 'c+' => true,
+            'rb' => true, 'w+b' => true, 'r+b' => true, 'x+b' => true,
+            'c+b' => true, 'rt' => true, 'w+t' => true, 'r+t' => true,
+            'x+t' => true, 'c+t' => true, 'a+' => true
+        ],
+        'write' => [
+            'w' => true, 'w+' => true, 'rw' => true, 'r+' => true, 'x+' => true,
+            'c+' => true, 'wb' => true, 'w+b' => true, 'r+b' => true,
+            'x+b' => true, 'c+b' => true, 'w+t' => true, 'r+t' => true,
+            'x+t' => true, 'c+t' => true, 'a' => true, 'a+' => true
+        ]
+    ];
+
+    /**
+     * This constructor accepts an associative array of options.
+     *
+     * - size: (int) If a read stream would otherwise have an indeterminate
+     *   size, but the size is known due to foreknowledge, then you can
+     *   provide that size, in bytes.
+     * - metadata: (array) Any additional metadata to return when the metadata
+     *   of the stream is accessed.
+     *
+     * @param resource $stream  Stream resource to wrap.
+     * @param array    $options Associative array of options.
+     *
+     * @throws \InvalidArgumentException if the stream is not a stream resource
+     */
+    public function __construct($stream, $options = [])
+    {
+        if (!is_resource($stream)) {
+            throw new \InvalidArgumentException('Stream must be a resource');
+        }
+
+        if (isset($options['size'])) {
+            $this->size = $options['size'];
+        }
+
+        $this->customMetadata = isset($options['metadata'])
+            ? $options['metadata']
+            : [];
+
+        $this->stream = $stream;
+        $meta = stream_get_meta_data($this->stream);
+        $this->seekable = $meta['seekable'];
+        $this->readable = isset(self::$readWriteHash['read'][$meta['mode']]);
+        $this->writable = isset(self::$readWriteHash['write'][$meta['mode']]);
+        $this->uri = $this->getMetadata('uri');
+    }
+
+    public function __get($name)
+    {
+        if ($name == 'stream') {
+            throw new \RuntimeException('The stream is detached');
+        }
+
+        throw new \BadMethodCallException('No value for ' . $name);
+    }
+
+    /**
+     * Closes the stream when the destructed
+     */
+    public function __destruct()
+    {
+        $this->close();
+    }
+
+    public function __toString()
+    {
+        try {
+            $this->seek(0);
+            return (string) stream_get_contents($this->stream);
+        } catch (\Exception $e) {
+            return '';
+        }
+    }
+
+    public function getContents()
+    {
+        $contents = stream_get_contents($this->stream);
+
+        if ($contents === false) {
+            throw new \RuntimeException('Unable to read stream contents');
+        }
+
+        return $contents;
+    }
+
+    public function close()
+    {
+        if (isset($this->stream)) {
+            if (is_resource($this->stream)) {
+                fclose($this->stream);
+            }
+            $this->detach();
+        }
+    }
+
+    public function detach()
+    {
+        if (!isset($this->stream)) {
+            return null;
+        }
+
+        $result = $this->stream;
+        unset($this->stream);
+        $this->size = $this->uri = null;
+        $this->readable = $this->writable = $this->seekable = false;
+
+        return $result;
+    }
+
+    public function getSize()
+    {
+        if ($this->size !== null) {
+            return $this->size;
+        }
+
+        if (!isset($this->stream)) {
+            return null;
+        }
+
+        // Clear the stat cache if the stream has a URI
+        if ($this->uri) {
+            clearstatcache(true, $this->uri);
+        }
+
+        $stats = fstat($this->stream);
+        if (isset($stats['size'])) {
+            $this->size = $stats['size'];
+            return $this->size;
+        }
+
+        return null;
+    }
+
+    public function isReadable()
+    {
+        return $this->readable;
+    }
+
+    public function isWritable()
+    {
+        return $this->writable;
+    }
+
+    public function isSeekable()
+    {
+        return $this->seekable;
+    }
+
+    public function eof()
+    {
+        return !$this->stream || feof($this->stream);
+    }
+
+    public function tell()
+    {
+        $result = ftell($this->stream);
+
+        if ($result === false) {
+            throw new \RuntimeException('Unable to determine stream position');
+        }
+
+        return $result;
+    }
+
+    public function rewind()
+    {
+        $this->seek(0);
+    }
+
+    public function seek($offset, $whence = SEEK_SET)
+    {
+        if (!$this->seekable) {
+            throw new \RuntimeException('Stream is not seekable');
+        } elseif (fseek($this->stream, $offset, $whence) === -1) {
+            throw new \RuntimeException('Unable to seek to stream position '
+                . $offset . ' with whence ' . var_export($whence, true));
+        }
+    }
+
+    public function read($length)
+    {
+        if (!$this->readable) {
+            throw new \RuntimeException('Cannot read from non-readable stream');
+        }
+        if ($length < 0) {
+            throw new \RuntimeException('Length parameter cannot be negative');
+        }
+
+        if (0 === $length) {
+            return '';
+        }
+
+        $string = fread($this->stream, $length);
+        if (false === $string) {
+            throw new \RuntimeException('Unable to read from stream');
+        }
+
+        return $string;
+    }
+
+    public function write($string)
+    {
+        if (!$this->writable) {
+            throw new \RuntimeException('Cannot write to a non-writable stream');
+        }
+
+        // We can't know the size after writing anything
+        $this->size = null;
+        $result = fwrite($this->stream, $string);
+
+        if ($result === false) {
+            throw new \RuntimeException('Unable to write to stream');
+        }
+
+        return $result;
+    }
+
+    public function getMetadata($key = null)
+    {
+        if (!isset($this->stream)) {
+            return $key ? null : [];
+        } elseif (!$key) {
+            return $this->customMetadata + stream_get_meta_data($this->stream);
+        } elseif (isset($this->customMetadata[$key])) {
+            return $this->customMetadata[$key];
+        }
+
+        $meta = stream_get_meta_data($this->stream);
+
+        return isset($meta[$key]) ? $meta[$key] : null;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/StreamDecoratorTrait.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/StreamDecoratorTrait.php
new file mode 100644
index 0000000..daec6f5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/StreamDecoratorTrait.php
@@ -0,0 +1,149 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Stream decorator trait
+ * @property StreamInterface stream
+ */
+trait StreamDecoratorTrait
+{
+    /**
+     * @param StreamInterface $stream Stream to decorate
+     */
+    public function __construct(StreamInterface $stream)
+    {
+        $this->stream = $stream;
+    }
+
+    /**
+     * Magic method used to create a new stream if streams are not added in
+     * the constructor of a decorator (e.g., LazyOpenStream).
+     *
+     * @param string $name Name of the property (allows "stream" only).
+     *
+     * @return StreamInterface
+     */
+    public function __get($name)
+    {
+        if ($name == 'stream') {
+            $this->stream = $this->createStream();
+            return $this->stream;
+        }
+
+        throw new \UnexpectedValueException("$name not found on class");
+    }
+
+    public function __toString()
+    {
+        try {
+            if ($this->isSeekable()) {
+                $this->seek(0);
+            }
+            return $this->getContents();
+        } catch (\Exception $e) {
+            // Really, PHP? https://bugs.php.net/bug.php?id=53648
+            trigger_error('StreamDecorator::__toString exception: '
+                . (string) $e, E_USER_ERROR);
+            return '';
+        }
+    }
+
+    public function getContents()
+    {
+        return copy_to_string($this);
+    }
+
+    /**
+     * Allow decorators to implement custom methods
+     *
+     * @param string $method Missing method name
+     * @param array  $args   Method arguments
+     *
+     * @return mixed
+     */
+    public function __call($method, array $args)
+    {
+        $result = call_user_func_array([$this->stream, $method], $args);
+
+        // Always return the wrapped object if the result is a return $this
+        return $result === $this->stream ? $this : $result;
+    }
+
+    public function close()
+    {
+        $this->stream->close();
+    }
+
+    public function getMetadata($key = null)
+    {
+        return $this->stream->getMetadata($key);
+    }
+
+    public function detach()
+    {
+        return $this->stream->detach();
+    }
+
+    public function getSize()
+    {
+        return $this->stream->getSize();
+    }
+
+    public function eof()
+    {
+        return $this->stream->eof();
+    }
+
+    public function tell()
+    {
+        return $this->stream->tell();
+    }
+
+    public function isReadable()
+    {
+        return $this->stream->isReadable();
+    }
+
+    public function isWritable()
+    {
+        return $this->stream->isWritable();
+    }
+
+    public function isSeekable()
+    {
+        return $this->stream->isSeekable();
+    }
+
+    public function rewind()
+    {
+        $this->seek(0);
+    }
+
+    public function seek($offset, $whence = SEEK_SET)
+    {
+        $this->stream->seek($offset, $whence);
+    }
+
+    public function read($length)
+    {
+        return $this->stream->read($length);
+    }
+
+    public function write($string)
+    {
+        return $this->stream->write($string);
+    }
+
+    /**
+     * Implement in subclasses to dynamically create streams when requested.
+     *
+     * @return StreamInterface
+     * @throws \BadMethodCallException
+     */
+    protected function createStream()
+    {
+        throw new \BadMethodCallException('Not implemented');
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/StreamWrapper.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/StreamWrapper.php
new file mode 100644
index 0000000..cf7b223
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/StreamWrapper.php
@@ -0,0 +1,121 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Converts Guzzle streams into PHP stream resources.
+ */
+class StreamWrapper
+{
+    /** @var resource */
+    public $context;
+
+    /** @var StreamInterface */
+    private $stream;
+
+    /** @var string r, r+, or w */
+    private $mode;
+
+    /**
+     * Returns a resource representing the stream.
+     *
+     * @param StreamInterface $stream The stream to get a resource for
+     *
+     * @return resource
+     * @throws \InvalidArgumentException if stream is not readable or writable
+     */
+    public static function getResource(StreamInterface $stream)
+    {
+        self::register();
+
+        if ($stream->isReadable()) {
+            $mode = $stream->isWritable() ? 'r+' : 'r';
+        } elseif ($stream->isWritable()) {
+            $mode = 'w';
+        } else {
+            throw new \InvalidArgumentException('The stream must be readable, '
+                . 'writable, or both.');
+        }
+
+        return fopen('guzzle://stream', $mode, null, stream_context_create([
+            'guzzle' => ['stream' => $stream]
+        ]));
+    }
+
+    /**
+     * Registers the stream wrapper if needed
+     */
+    public static function register()
+    {
+        if (!in_array('guzzle', stream_get_wrappers())) {
+            stream_wrapper_register('guzzle', __CLASS__);
+        }
+    }
+
+    public function stream_open($path, $mode, $options, &$opened_path)
+    {
+        $options = stream_context_get_options($this->context);
+
+        if (!isset($options['guzzle']['stream'])) {
+            return false;
+        }
+
+        $this->mode = $mode;
+        $this->stream = $options['guzzle']['stream'];
+
+        return true;
+    }
+
+    public function stream_read($count)
+    {
+        return $this->stream->read($count);
+    }
+
+    public function stream_write($data)
+    {
+        return (int) $this->stream->write($data);
+    }
+
+    public function stream_tell()
+    {
+        return $this->stream->tell();
+    }
+
+    public function stream_eof()
+    {
+        return $this->stream->eof();
+    }
+
+    public function stream_seek($offset, $whence)
+    {
+        $this->stream->seek($offset, $whence);
+
+        return true;
+    }
+
+    public function stream_stat()
+    {
+        static $modeMap = [
+            'r'  => 33060,
+            'r+' => 33206,
+            'w'  => 33188
+        ];
+
+        return [
+            'dev'     => 0,
+            'ino'     => 0,
+            'mode'    => $modeMap[$this->mode],
+            'nlink'   => 0,
+            'uid'     => 0,
+            'gid'     => 0,
+            'rdev'    => 0,
+            'size'    => $this->stream->getSize() ?: 0,
+            'atime'   => 0,
+            'mtime'   => 0,
+            'ctime'   => 0,
+            'blksize' => 0,
+            'blocks'  => 0
+        ];
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/UploadedFile.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/UploadedFile.php
new file mode 100644
index 0000000..e62bd5c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/UploadedFile.php
@@ -0,0 +1,316 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use InvalidArgumentException;
+use Psr\Http\Message\StreamInterface;
+use Psr\Http\Message\UploadedFileInterface;
+use RuntimeException;
+
+class UploadedFile implements UploadedFileInterface
+{
+    /**
+     * @var int[]
+     */
+    private static $errors = [
+        UPLOAD_ERR_OK,
+        UPLOAD_ERR_INI_SIZE,
+        UPLOAD_ERR_FORM_SIZE,
+        UPLOAD_ERR_PARTIAL,
+        UPLOAD_ERR_NO_FILE,
+        UPLOAD_ERR_NO_TMP_DIR,
+        UPLOAD_ERR_CANT_WRITE,
+        UPLOAD_ERR_EXTENSION,
+    ];
+
+    /**
+     * @var string
+     */
+    private $clientFilename;
+
+    /**
+     * @var string
+     */
+    private $clientMediaType;
+
+    /**
+     * @var int
+     */
+    private $error;
+
+    /**
+     * @var null|string
+     */
+    private $file;
+
+    /**
+     * @var bool
+     */
+    private $moved = false;
+
+    /**
+     * @var int
+     */
+    private $size;
+
+    /**
+     * @var StreamInterface|null
+     */
+    private $stream;
+
+    /**
+     * @param StreamInterface|string|resource $streamOrFile
+     * @param int $size
+     * @param int $errorStatus
+     * @param string|null $clientFilename
+     * @param string|null $clientMediaType
+     */
+    public function __construct(
+        $streamOrFile,
+        $size,
+        $errorStatus,
+        $clientFilename = null,
+        $clientMediaType = null
+    ) {
+        $this->setError($errorStatus);
+        $this->setSize($size);
+        $this->setClientFilename($clientFilename);
+        $this->setClientMediaType($clientMediaType);
+
+        if ($this->isOk()) {
+            $this->setStreamOrFile($streamOrFile);
+        }
+    }
+
+    /**
+     * Depending on the value set file or stream variable
+     *
+     * @param mixed $streamOrFile
+     * @throws InvalidArgumentException
+     */
+    private function setStreamOrFile($streamOrFile)
+    {
+        if (is_string($streamOrFile)) {
+            $this->file = $streamOrFile;
+        } elseif (is_resource($streamOrFile)) {
+            $this->stream = new Stream($streamOrFile);
+        } elseif ($streamOrFile instanceof StreamInterface) {
+            $this->stream = $streamOrFile;
+        } else {
+            throw new InvalidArgumentException(
+                'Invalid stream or file provided for UploadedFile'
+            );
+        }
+    }
+
+    /**
+     * @param int $error
+     * @throws InvalidArgumentException
+     */
+    private function setError($error)
+    {
+        if (false === is_int($error)) {
+            throw new InvalidArgumentException(
+                'Upload file error status must be an integer'
+            );
+        }
+
+        if (false === in_array($error, UploadedFile::$errors)) {
+            throw new InvalidArgumentException(
+                'Invalid error status for UploadedFile'
+            );
+        }
+
+        $this->error = $error;
+    }
+
+    /**
+     * @param int $size
+     * @throws InvalidArgumentException
+     */
+    private function setSize($size)
+    {
+        if (false === is_int($size)) {
+            throw new InvalidArgumentException(
+                'Upload file size must be an integer'
+            );
+        }
+
+        $this->size = $size;
+    }
+
+    /**
+     * @param mixed $param
+     * @return boolean
+     */
+    private function isStringOrNull($param)
+    {
+        return in_array(gettype($param), ['string', 'NULL']);
+    }
+
+    /**
+     * @param mixed $param
+     * @return boolean
+     */
+    private function isStringNotEmpty($param)
+    {
+        return is_string($param) && false === empty($param);
+    }
+
+    /**
+     * @param string|null $clientFilename
+     * @throws InvalidArgumentException
+     */
+    private function setClientFilename($clientFilename)
+    {
+        if (false === $this->isStringOrNull($clientFilename)) {
+            throw new InvalidArgumentException(
+                'Upload file client filename must be a string or null'
+            );
+        }
+
+        $this->clientFilename = $clientFilename;
+    }
+
+    /**
+     * @param string|null $clientMediaType
+     * @throws InvalidArgumentException
+     */
+    private function setClientMediaType($clientMediaType)
+    {
+        if (false === $this->isStringOrNull($clientMediaType)) {
+            throw new InvalidArgumentException(
+                'Upload file client media type must be a string or null'
+            );
+        }
+
+        $this->clientMediaType = $clientMediaType;
+    }
+
+    /**
+     * Return true if there is no upload error
+     *
+     * @return boolean
+     */
+    private function isOk()
+    {
+        return $this->error === UPLOAD_ERR_OK;
+    }
+
+    /**
+     * @return boolean
+     */
+    public function isMoved()
+    {
+        return $this->moved;
+    }
+
+    /**
+     * @throws RuntimeException if is moved or not ok
+     */
+    private function validateActive()
+    {
+        if (false === $this->isOk()) {
+            throw new RuntimeException('Cannot retrieve stream due to upload error');
+        }
+
+        if ($this->isMoved()) {
+            throw new RuntimeException('Cannot retrieve stream after it has already been moved');
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     * @throws RuntimeException if the upload was not successful.
+     */
+    public function getStream()
+    {
+        $this->validateActive();
+
+        if ($this->stream instanceof StreamInterface) {
+            return $this->stream;
+        }
+
+        return new LazyOpenStream($this->file, 'r+');
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @see http://php.net/is_uploaded_file
+     * @see http://php.net/move_uploaded_file
+     * @param string $targetPath Path to which to move the uploaded file.
+     * @throws RuntimeException if the upload was not successful.
+     * @throws InvalidArgumentException if the $path specified is invalid.
+     * @throws RuntimeException on any error during the move operation, or on
+     *     the second or subsequent call to the method.
+     */
+    public function moveTo($targetPath)
+    {
+        $this->validateActive();
+
+        if (false === $this->isStringNotEmpty($targetPath)) {
+            throw new InvalidArgumentException(
+                'Invalid path provided for move operation; must be a non-empty string'
+            );
+        }
+
+        if ($this->file) {
+            $this->moved = php_sapi_name() == 'cli'
+                ? rename($this->file, $targetPath)
+                : move_uploaded_file($this->file, $targetPath);
+        } else {
+            copy_to_stream(
+                $this->getStream(),
+                new LazyOpenStream($targetPath, 'w')
+            );
+
+            $this->moved = true;
+        }
+
+        if (false === $this->moved) {
+            throw new RuntimeException(
+                sprintf('Uploaded file could not be moved to %s', $targetPath)
+            );
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return int|null The file size in bytes or null if unknown.
+     */
+    public function getSize()
+    {
+        return $this->size;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @see http://php.net/manual/en/features.file-upload.errors.php
+     * @return int One of PHP's UPLOAD_ERR_XXX constants.
+     */
+    public function getError()
+    {
+        return $this->error;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @return string|null The filename sent by the client or null if none
+     *     was provided.
+     */
+    public function getClientFilename()
+    {
+        return $this->clientFilename;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getClientMediaType()
+    {
+        return $this->clientMediaType;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Uri.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Uri.php
new file mode 100644
index 0000000..f46c1db
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/Uri.php
@@ -0,0 +1,702 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\UriInterface;
+
+/**
+ * PSR-7 URI implementation.
+ *
+ * @author Michael Dowling
+ * @author Tobias Schultze
+ * @author Matthew Weier O'Phinney
+ */
+class Uri implements UriInterface
+{
+    /**
+     * Absolute http and https URIs require a host per RFC 7230 Section 2.7
+     * but in generic URIs the host can be empty. So for http(s) URIs
+     * we apply this default host when no host is given yet to form a
+     * valid URI.
+     */
+    const HTTP_DEFAULT_HOST = 'localhost';
+
+    private static $defaultPorts = [
+        'http'  => 80,
+        'https' => 443,
+        'ftp' => 21,
+        'gopher' => 70,
+        'nntp' => 119,
+        'news' => 119,
+        'telnet' => 23,
+        'tn3270' => 23,
+        'imap' => 143,
+        'pop' => 110,
+        'ldap' => 389,
+    ];
+
+    private static $charUnreserved = 'a-zA-Z0-9_\-\.~';
+    private static $charSubDelims = '!\$&\'\(\)\*\+,;=';
+    private static $replaceQuery = ['=' => '%3D', '&' => '%26'];
+
+    /** @var string Uri scheme. */
+    private $scheme = '';
+
+    /** @var string Uri user info. */
+    private $userInfo = '';
+
+    /** @var string Uri host. */
+    private $host = '';
+
+    /** @var int|null Uri port. */
+    private $port;
+
+    /** @var string Uri path. */
+    private $path = '';
+
+    /** @var string Uri query string. */
+    private $query = '';
+
+    /** @var string Uri fragment. */
+    private $fragment = '';
+
+    /**
+     * @param string $uri URI to parse
+     */
+    public function __construct($uri = '')
+    {
+        // weak type check to also accept null until we can add scalar type hints
+        if ($uri != '') {
+            $parts = parse_url($uri);
+            if ($parts === false) {
+                throw new \InvalidArgumentException("Unable to parse URI: $uri");
+            }
+            $this->applyParts($parts);
+        }
+    }
+
+    public function __toString()
+    {
+        return self::composeComponents(
+            $this->scheme,
+            $this->getAuthority(),
+            $this->path,
+            $this->query,
+            $this->fragment
+        );
+    }
+
+    /**
+     * Composes a URI reference string from its various components.
+     *
+     * Usually this method does not need to be called manually but instead is used indirectly via
+     * `Psr\Http\Message\UriInterface::__toString`.
+     *
+     * PSR-7 UriInterface treats an empty component the same as a missing component as
+     * getQuery(), getFragment() etc. always return a string. This explains the slight
+     * difference to RFC 3986 Section 5.3.
+     *
+     * Another adjustment is that the authority separator is added even when the authority is missing/empty
+     * for the "file" scheme. This is because PHP stream functions like `file_get_contents` only work with
+     * `file:///myfile` but not with `file:/myfile` although they are equivalent according to RFC 3986. But
+     * `file:///` is the more common syntax for the file scheme anyway (Chrome for example redirects to
+     * that format).
+     *
+     * @param string $scheme
+     * @param string $authority
+     * @param string $path
+     * @param string $query
+     * @param string $fragment
+     *
+     * @return string
+     *
+     * @link https://tools.ietf.org/html/rfc3986#section-5.3
+     */
+    public static function composeComponents($scheme, $authority, $path, $query, $fragment)
+    {
+        $uri = '';
+
+        // weak type checks to also accept null until we can add scalar type hints
+        if ($scheme != '') {
+            $uri .= $scheme . ':';
+        }
+
+        if ($authority != ''|| $scheme === 'file') {
+            $uri .= '//' . $authority;
+        }
+
+        $uri .= $path;
+
+        if ($query != '') {
+            $uri .= '?' . $query;
+        }
+
+        if ($fragment != '') {
+            $uri .= '#' . $fragment;
+        }
+
+        return $uri;
+    }
+
+    /**
+     * Whether the URI has the default port of the current scheme.
+     *
+     * `Psr\Http\Message\UriInterface::getPort` may return null or the standard port. This method can be used
+     * independently of the implementation.
+     *
+     * @param UriInterface $uri
+     *
+     * @return bool
+     */
+    public static function isDefaultPort(UriInterface $uri)
+    {
+        return $uri->getPort() === null
+            || (isset(self::$defaultPorts[$uri->getScheme()]) && $uri->getPort() === self::$defaultPorts[$uri->getScheme()]);
+    }
+
+    /**
+     * Whether the URI is absolute, i.e. it has a scheme.
+     *
+     * An instance of UriInterface can either be an absolute URI or a relative reference. This method returns true
+     * if it is the former. An absolute URI has a scheme. A relative reference is used to express a URI relative
+     * to another URI, the base URI. Relative references can be divided into several forms:
+     * - network-path references, e.g. '//example.com/path'
+     * - absolute-path references, e.g. '/path'
+     * - relative-path references, e.g. 'subpath'
+     *
+     * @param UriInterface $uri
+     *
+     * @return bool
+     * @see Uri::isNetworkPathReference
+     * @see Uri::isAbsolutePathReference
+     * @see Uri::isRelativePathReference
+     * @link https://tools.ietf.org/html/rfc3986#section-4
+     */
+    public static function isAbsolute(UriInterface $uri)
+    {
+        return $uri->getScheme() !== '';
+    }
+
+    /**
+     * Whether the URI is a network-path reference.
+     *
+     * A relative reference that begins with two slash characters is termed an network-path reference.
+     *
+     * @param UriInterface $uri
+     *
+     * @return bool
+     * @link https://tools.ietf.org/html/rfc3986#section-4.2
+     */
+    public static function isNetworkPathReference(UriInterface $uri)
+    {
+        return $uri->getScheme() === '' && $uri->getAuthority() !== '';
+    }
+
+    /**
+     * Whether the URI is a absolute-path reference.
+     *
+     * A relative reference that begins with a single slash character is termed an absolute-path reference.
+     *
+     * @param UriInterface $uri
+     *
+     * @return bool
+     * @link https://tools.ietf.org/html/rfc3986#section-4.2
+     */
+    public static function isAbsolutePathReference(UriInterface $uri)
+    {
+        return $uri->getScheme() === ''
+            && $uri->getAuthority() === ''
+            && isset($uri->getPath()[0])
+            && $uri->getPath()[0] === '/';
+    }
+
+    /**
+     * Whether the URI is a relative-path reference.
+     *
+     * A relative reference that does not begin with a slash character is termed a relative-path reference.
+     *
+     * @param UriInterface $uri
+     *
+     * @return bool
+     * @link https://tools.ietf.org/html/rfc3986#section-4.2
+     */
+    public static function isRelativePathReference(UriInterface $uri)
+    {
+        return $uri->getScheme() === ''
+            && $uri->getAuthority() === ''
+            && (!isset($uri->getPath()[0]) || $uri->getPath()[0] !== '/');
+    }
+
+    /**
+     * Whether the URI is a same-document reference.
+     *
+     * A same-document reference refers to a URI that is, aside from its fragment
+     * component, identical to the base URI. When no base URI is given, only an empty
+     * URI reference (apart from its fragment) is considered a same-document reference.
+     *
+     * @param UriInterface      $uri  The URI to check
+     * @param UriInterface|null $base An optional base URI to compare against
+     *
+     * @return bool
+     * @link https://tools.ietf.org/html/rfc3986#section-4.4
+     */
+    public static function isSameDocumentReference(UriInterface $uri, UriInterface $base = null)
+    {
+        if ($base !== null) {
+            $uri = UriResolver::resolve($base, $uri);
+
+            return ($uri->getScheme() === $base->getScheme())
+                && ($uri->getAuthority() === $base->getAuthority())
+                && ($uri->getPath() === $base->getPath())
+                && ($uri->getQuery() === $base->getQuery());
+        }
+
+        return $uri->getScheme() === '' && $uri->getAuthority() === '' && $uri->getPath() === '' && $uri->getQuery() === '';
+    }
+
+    /**
+     * Removes dot segments from a path and returns the new path.
+     *
+     * @param string $path
+     *
+     * @return string
+     *
+     * @deprecated since version 1.4. Use UriResolver::removeDotSegments instead.
+     * @see UriResolver::removeDotSegments
+     */
+    public static function removeDotSegments($path)
+    {
+        return UriResolver::removeDotSegments($path);
+    }
+
+    /**
+     * Converts the relative URI into a new URI that is resolved against the base URI.
+     *
+     * @param UriInterface        $base Base URI
+     * @param string|UriInterface $rel  Relative URI
+     *
+     * @return UriInterface
+     *
+     * @deprecated since version 1.4. Use UriResolver::resolve instead.
+     * @see UriResolver::resolve
+     */
+    public static function resolve(UriInterface $base, $rel)
+    {
+        if (!($rel instanceof UriInterface)) {
+            $rel = new self($rel);
+        }
+
+        return UriResolver::resolve($base, $rel);
+    }
+
+    /**
+     * Creates a new URI with a specific query string value removed.
+     *
+     * Any existing query string values that exactly match the provided key are
+     * removed.
+     *
+     * @param UriInterface $uri URI to use as a base.
+     * @param string       $key Query string key to remove.
+     *
+     * @return UriInterface
+     */
+    public static function withoutQueryValue(UriInterface $uri, $key)
+    {
+        $current = $uri->getQuery();
+        if ($current === '') {
+            return $uri;
+        }
+
+        $decodedKey = rawurldecode($key);
+        $result = array_filter(explode('&', $current), function ($part) use ($decodedKey) {
+            return rawurldecode(explode('=', $part)[0]) !== $decodedKey;
+        });
+
+        return $uri->withQuery(implode('&', $result));
+    }
+
+    /**
+     * Creates a new URI with a specific query string value.
+     *
+     * Any existing query string values that exactly match the provided key are
+     * removed and replaced with the given key value pair.
+     *
+     * A value of null will set the query string key without a value, e.g. "key"
+     * instead of "key=value".
+     *
+     * @param UriInterface $uri   URI to use as a base.
+     * @param string       $key   Key to set.
+     * @param string|null  $value Value to set
+     *
+     * @return UriInterface
+     */
+    public static function withQueryValue(UriInterface $uri, $key, $value)
+    {
+        $current = $uri->getQuery();
+
+        if ($current === '') {
+            $result = [];
+        } else {
+            $decodedKey = rawurldecode($key);
+            $result = array_filter(explode('&', $current), function ($part) use ($decodedKey) {
+                return rawurldecode(explode('=', $part)[0]) !== $decodedKey;
+            });
+        }
+
+        // Query string separators ("=", "&") within the key or value need to be encoded
+        // (while preventing double-encoding) before setting the query string. All other
+        // chars that need percent-encoding will be encoded by withQuery().
+        $key = strtr($key, self::$replaceQuery);
+
+        if ($value !== null) {
+            $result[] = $key . '=' . strtr($value, self::$replaceQuery);
+        } else {
+            $result[] = $key;
+        }
+
+        return $uri->withQuery(implode('&', $result));
+    }
+
+    /**
+     * Creates a URI from a hash of `parse_url` components.
+     *
+     * @param array $parts
+     *
+     * @return UriInterface
+     * @link http://php.net/manual/en/function.parse-url.php
+     *
+     * @throws \InvalidArgumentException If the components do not form a valid URI.
+     */
+    public static function fromParts(array $parts)
+    {
+        $uri = new self();
+        $uri->applyParts($parts);
+        $uri->validateState();
+
+        return $uri;
+    }
+
+    public function getScheme()
+    {
+        return $this->scheme;
+    }
+
+    public function getAuthority()
+    {
+        $authority = $this->host;
+        if ($this->userInfo !== '') {
+            $authority = $this->userInfo . '@' . $authority;
+        }
+
+        if ($this->port !== null) {
+            $authority .= ':' . $this->port;
+        }
+
+        return $authority;
+    }
+
+    public function getUserInfo()
+    {
+        return $this->userInfo;
+    }
+
+    public function getHost()
+    {
+        return $this->host;
+    }
+
+    public function getPort()
+    {
+        return $this->port;
+    }
+
+    public function getPath()
+    {
+        return $this->path;
+    }
+
+    public function getQuery()
+    {
+        return $this->query;
+    }
+
+    public function getFragment()
+    {
+        return $this->fragment;
+    }
+
+    public function withScheme($scheme)
+    {
+        $scheme = $this->filterScheme($scheme);
+
+        if ($this->scheme === $scheme) {
+            return $this;
+        }
+
+        $new = clone $this;
+        $new->scheme = $scheme;
+        $new->removeDefaultPort();
+        $new->validateState();
+
+        return $new;
+    }
+
+    public function withUserInfo($user, $password = null)
+    {
+        $info = $user;
+        if ($password != '') {
+            $info .= ':' . $password;
+        }
+
+        if ($this->userInfo === $info) {
+            return $this;
+        }
+
+        $new = clone $this;
+        $new->userInfo = $info;
+        $new->validateState();
+
+        return $new;
+    }
+
+    public function withHost($host)
+    {
+        $host = $this->filterHost($host);
+
+        if ($this->host === $host) {
+            return $this;
+        }
+
+        $new = clone $this;
+        $new->host = $host;
+        $new->validateState();
+
+        return $new;
+    }
+
+    public function withPort($port)
+    {
+        $port = $this->filterPort($port);
+
+        if ($this->port === $port) {
+            return $this;
+        }
+
+        $new = clone $this;
+        $new->port = $port;
+        $new->removeDefaultPort();
+        $new->validateState();
+
+        return $new;
+    }
+
+    public function withPath($path)
+    {
+        $path = $this->filterPath($path);
+
+        if ($this->path === $path) {
+            return $this;
+        }
+
+        $new = clone $this;
+        $new->path = $path;
+        $new->validateState();
+
+        return $new;
+    }
+
+    public function withQuery($query)
+    {
+        $query = $this->filterQueryAndFragment($query);
+
+        if ($this->query === $query) {
+            return $this;
+        }
+
+        $new = clone $this;
+        $new->query = $query;
+
+        return $new;
+    }
+
+    public function withFragment($fragment)
+    {
+        $fragment = $this->filterQueryAndFragment($fragment);
+
+        if ($this->fragment === $fragment) {
+            return $this;
+        }
+
+        $new = clone $this;
+        $new->fragment = $fragment;
+
+        return $new;
+    }
+
+    /**
+     * Apply parse_url parts to a URI.
+     *
+     * @param array $parts Array of parse_url parts to apply.
+     */
+    private function applyParts(array $parts)
+    {
+        $this->scheme = isset($parts['scheme'])
+            ? $this->filterScheme($parts['scheme'])
+            : '';
+        $this->userInfo = isset($parts['user']) ? $parts['user'] : '';
+        $this->host = isset($parts['host'])
+            ? $this->filterHost($parts['host'])
+            : '';
+        $this->port = isset($parts['port'])
+            ? $this->filterPort($parts['port'])
+            : null;
+        $this->path = isset($parts['path'])
+            ? $this->filterPath($parts['path'])
+            : '';
+        $this->query = isset($parts['query'])
+            ? $this->filterQueryAndFragment($parts['query'])
+            : '';
+        $this->fragment = isset($parts['fragment'])
+            ? $this->filterQueryAndFragment($parts['fragment'])
+            : '';
+        if (isset($parts['pass'])) {
+            $this->userInfo .= ':' . $parts['pass'];
+        }
+
+        $this->removeDefaultPort();
+    }
+
+    /**
+     * @param string $scheme
+     *
+     * @return string
+     *
+     * @throws \InvalidArgumentException If the scheme is invalid.
+     */
+    private function filterScheme($scheme)
+    {
+        if (!is_string($scheme)) {
+            throw new \InvalidArgumentException('Scheme must be a string');
+        }
+
+        return strtolower($scheme);
+    }
+
+    /**
+     * @param string $host
+     *
+     * @return string
+     *
+     * @throws \InvalidArgumentException If the host is invalid.
+     */
+    private function filterHost($host)
+    {
+        if (!is_string($host)) {
+            throw new \InvalidArgumentException('Host must be a string');
+        }
+
+        return strtolower($host);
+    }
+
+    /**
+     * @param int|null $port
+     *
+     * @return int|null
+     *
+     * @throws \InvalidArgumentException If the port is invalid.
+     */
+    private function filterPort($port)
+    {
+        if ($port === null) {
+            return null;
+        }
+
+        $port = (int) $port;
+        if (1 > $port || 0xffff < $port) {
+            throw new \InvalidArgumentException(
+                sprintf('Invalid port: %d. Must be between 1 and 65535', $port)
+            );
+        }
+
+        return $port;
+    }
+
+    private function removeDefaultPort()
+    {
+        if ($this->port !== null && self::isDefaultPort($this)) {
+            $this->port = null;
+        }
+    }
+
+    /**
+     * Filters the path of a URI
+     *
+     * @param string $path
+     *
+     * @return string
+     *
+     * @throws \InvalidArgumentException If the path is invalid.
+     */
+    private function filterPath($path)
+    {
+        if (!is_string($path)) {
+            throw new \InvalidArgumentException('Path must be a string');
+        }
+
+        return preg_replace_callback(
+            '/(?:[^' . self::$charUnreserved . self::$charSubDelims . '%:@\/]++|%(?![A-Fa-f0-9]{2}))/',
+            [$this, 'rawurlencodeMatchZero'],
+            $path
+        );
+    }
+
+    /**
+     * Filters the query string or fragment of a URI.
+     *
+     * @param string $str
+     *
+     * @return string
+     *
+     * @throws \InvalidArgumentException If the query or fragment is invalid.
+     */
+    private function filterQueryAndFragment($str)
+    {
+        if (!is_string($str)) {
+            throw new \InvalidArgumentException('Query and fragment must be a string');
+        }
+
+        return preg_replace_callback(
+            '/(?:[^' . self::$charUnreserved . self::$charSubDelims . '%:@\/\?]++|%(?![A-Fa-f0-9]{2}))/',
+            [$this, 'rawurlencodeMatchZero'],
+            $str
+        );
+    }
+
+    private function rawurlencodeMatchZero(array $match)
+    {
+        return rawurlencode($match[0]);
+    }
+
+    private function validateState()
+    {
+        if ($this->host === '' && ($this->scheme === 'http' || $this->scheme === 'https')) {
+            $this->host = self::HTTP_DEFAULT_HOST;
+        }
+
+        if ($this->getAuthority() === '') {
+            if (0 === strpos($this->path, '//')) {
+                throw new \InvalidArgumentException('The path of a URI without an authority must not start with two slashes "//"');
+            }
+            if ($this->scheme === '' && false !== strpos(explode('/', $this->path, 2)[0], ':')) {
+                throw new \InvalidArgumentException('A relative URI must not have a path beginning with a segment containing a colon');
+            }
+        } elseif (isset($this->path[0]) && $this->path[0] !== '/') {
+            @trigger_error(
+                'The path of a URI with an authority must start with a slash "/" or be empty. Automagically fixing the URI ' .
+                'by adding a leading slash to the path is deprecated since version 1.4 and will throw an exception instead.',
+                E_USER_DEPRECATED
+            );
+            $this->path = '/'. $this->path;
+            //throw new \InvalidArgumentException('The path of a URI with an authority must start with a slash "/" or be empty');
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/UriNormalizer.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/UriNormalizer.php
new file mode 100644
index 0000000..384c29e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/UriNormalizer.php
@@ -0,0 +1,216 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Provides methods to normalize and compare URIs.
+ *
+ * @author Tobias Schultze
+ *
+ * @link https://tools.ietf.org/html/rfc3986#section-6
+ */
+final class UriNormalizer
+{
+    /**
+     * Default normalizations which only include the ones that preserve semantics.
+     *
+     * self::CAPITALIZE_PERCENT_ENCODING | self::DECODE_UNRESERVED_CHARACTERS | self::CONVERT_EMPTY_PATH |
+     * self::REMOVE_DEFAULT_HOST | self::REMOVE_DEFAULT_PORT | self::REMOVE_DOT_SEGMENTS
+     */
+    const PRESERVING_NORMALIZATIONS = 63;
+
+    /**
+     * All letters within a percent-encoding triplet (e.g., "%3A") are case-insensitive, and should be capitalized.
+     *
+     * Example: http://example.org/a%c2%b1b → http://example.org/a%C2%B1b
+     */
+    const CAPITALIZE_PERCENT_ENCODING = 1;
+
+    /**
+     * Decodes percent-encoded octets of unreserved characters.
+     *
+     * For consistency, percent-encoded octets in the ranges of ALPHA (%41–%5A and %61–%7A), DIGIT (%30–%39),
+     * hyphen (%2D), period (%2E), underscore (%5F), or tilde (%7E) should not be created by URI producers and,
+     * when found in a URI, should be decoded to their corresponding unreserved characters by URI normalizers.
+     *
+     * Example: http://example.org/%7Eusern%61me/ → http://example.org/~username/
+     */
+    const DECODE_UNRESERVED_CHARACTERS = 2;
+
+    /**
+     * Converts the empty path to "/" for http and https URIs.
+     *
+     * Example: http://example.org → http://example.org/
+     */
+    const CONVERT_EMPTY_PATH = 4;
+
+    /**
+     * Removes the default host of the given URI scheme from the URI.
+     *
+     * Only the "file" scheme defines the default host "localhost".
+     * All of `file:/myfile`, `file:///myfile`, and `file://localhost/myfile`
+     * are equivalent according to RFC 3986. The first format is not accepted
+     * by PHPs stream functions and thus already normalized implicitly to the
+     * second format in the Uri class. See `GuzzleHttp\Psr7\Uri::composeComponents`.
+     *
+     * Example: file://localhost/myfile → file:///myfile
+     */
+    const REMOVE_DEFAULT_HOST = 8;
+
+    /**
+     * Removes the default port of the given URI scheme from the URI.
+     *
+     * Example: http://example.org:80/ → http://example.org/
+     */
+    const REMOVE_DEFAULT_PORT = 16;
+
+    /**
+     * Removes unnecessary dot-segments.
+     *
+     * Dot-segments in relative-path references are not removed as it would
+     * change the semantics of the URI reference.
+     *
+     * Example: http://example.org/../a/b/../c/./d.html → http://example.org/a/c/d.html
+     */
+    const REMOVE_DOT_SEGMENTS = 32;
+
+    /**
+     * Paths which include two or more adjacent slashes are converted to one.
+     *
+     * Webservers usually ignore duplicate slashes and treat those URIs equivalent.
+     * But in theory those URIs do not need to be equivalent. So this normalization
+     * may change the semantics. Encoded slashes (%2F) are not removed.
+     *
+     * Example: http://example.org//foo///bar.html → http://example.org/foo/bar.html
+     */
+    const REMOVE_DUPLICATE_SLASHES = 64;
+
+    /**
+     * Sort query parameters with their values in alphabetical order.
+     *
+     * However, the order of parameters in a URI may be significant (this is not defined by the standard).
+     * So this normalization is not safe and may change the semantics of the URI.
+     *
+     * Example: ?lang=en&article=fred → ?article=fred&lang=en
+     *
+     * Note: The sorting is neither locale nor Unicode aware (the URI query does not get decoded at all) as the
+     * purpose is to be able to compare URIs in a reproducible way, not to have the params sorted perfectly.
+     */
+    const SORT_QUERY_PARAMETERS = 128;
+
+    /**
+     * Returns a normalized URI.
+     *
+     * The scheme and host component are already normalized to lowercase per PSR-7 UriInterface.
+     * This methods adds additional normalizations that can be configured with the $flags parameter.
+     *
+     * PSR-7 UriInterface cannot distinguish between an empty component and a missing component as
+     * getQuery(), getFragment() etc. always return a string. This means the URIs "/?#" and "/" are
+     * treated equivalent which is not necessarily true according to RFC 3986. But that difference
+     * is highly uncommon in reality. So this potential normalization is implied in PSR-7 as well.
+     *
+     * @param UriInterface $uri   The URI to normalize
+     * @param int          $flags A bitmask of normalizations to apply, see constants
+     *
+     * @return UriInterface The normalized URI
+     * @link https://tools.ietf.org/html/rfc3986#section-6.2
+     */
+    public static function normalize(UriInterface $uri, $flags = self::PRESERVING_NORMALIZATIONS)
+    {
+        if ($flags & self::CAPITALIZE_PERCENT_ENCODING) {
+            $uri = self::capitalizePercentEncoding($uri);
+        }
+
+        if ($flags & self::DECODE_UNRESERVED_CHARACTERS) {
+            $uri = self::decodeUnreservedCharacters($uri);
+        }
+
+        if ($flags & self::CONVERT_EMPTY_PATH && $uri->getPath() === '' &&
+            ($uri->getScheme() === 'http' || $uri->getScheme() === 'https')
+        ) {
+            $uri = $uri->withPath('/');
+        }
+
+        if ($flags & self::REMOVE_DEFAULT_HOST && $uri->getScheme() === 'file' && $uri->getHost() === 'localhost') {
+            $uri = $uri->withHost('');
+        }
+
+        if ($flags & self::REMOVE_DEFAULT_PORT && $uri->getPort() !== null && Uri::isDefaultPort($uri)) {
+            $uri = $uri->withPort(null);
+        }
+
+        if ($flags & self::REMOVE_DOT_SEGMENTS && !Uri::isRelativePathReference($uri)) {
+            $uri = $uri->withPath(UriResolver::removeDotSegments($uri->getPath()));
+        }
+
+        if ($flags & self::REMOVE_DUPLICATE_SLASHES) {
+            $uri = $uri->withPath(preg_replace('#//++#', '/', $uri->getPath()));
+        }
+
+        if ($flags & self::SORT_QUERY_PARAMETERS && $uri->getQuery() !== '') {
+            $queryKeyValues = explode('&', $uri->getQuery());
+            sort($queryKeyValues);
+            $uri = $uri->withQuery(implode('&', $queryKeyValues));
+        }
+
+        return $uri;
+    }
+
+    /**
+     * Whether two URIs can be considered equivalent.
+     *
+     * Both URIs are normalized automatically before comparison with the given $normalizations bitmask. The method also
+     * accepts relative URI references and returns true when they are equivalent. This of course assumes they will be
+     * resolved against the same base URI. If this is not the case, determination of equivalence or difference of
+     * relative references does not mean anything.
+     *
+     * @param UriInterface $uri1           An URI to compare
+     * @param UriInterface $uri2           An URI to compare
+     * @param int          $normalizations A bitmask of normalizations to apply, see constants
+     *
+     * @return bool
+     * @link https://tools.ietf.org/html/rfc3986#section-6.1
+     */
+    public static function isEquivalent(UriInterface $uri1, UriInterface $uri2, $normalizations = self::PRESERVING_NORMALIZATIONS)
+    {
+        return (string) self::normalize($uri1, $normalizations) === (string) self::normalize($uri2, $normalizations);
+    }
+
+    private static function capitalizePercentEncoding(UriInterface $uri)
+    {
+        $regex = '/(?:%[A-Fa-f0-9]{2})++/';
+
+        $callback = function (array $match) {
+            return strtoupper($match[0]);
+        };
+
+        return
+            $uri->withPath(
+                preg_replace_callback($regex, $callback, $uri->getPath())
+            )->withQuery(
+                preg_replace_callback($regex, $callback, $uri->getQuery())
+            );
+    }
+
+    private static function decodeUnreservedCharacters(UriInterface $uri)
+    {
+        $regex = '/%(?:2D|2E|5F|7E|3[0-9]|[46][1-9A-F]|[57][0-9A])/i';
+
+        $callback = function (array $match) {
+            return rawurldecode($match[0]);
+        };
+
+        return
+            $uri->withPath(
+                preg_replace_callback($regex, $callback, $uri->getPath())
+            )->withQuery(
+                preg_replace_callback($regex, $callback, $uri->getQuery())
+            );
+    }
+
+    private function __construct()
+    {
+        // cannot be instantiated
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/UriResolver.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/UriResolver.php
new file mode 100644
index 0000000..c1cb8a2
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/UriResolver.php
@@ -0,0 +1,219 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Resolves a URI reference in the context of a base URI and the opposite way.
+ *
+ * @author Tobias Schultze
+ *
+ * @link https://tools.ietf.org/html/rfc3986#section-5
+ */
+final class UriResolver
+{
+    /**
+     * Removes dot segments from a path and returns the new path.
+     *
+     * @param string $path
+     *
+     * @return string
+     * @link http://tools.ietf.org/html/rfc3986#section-5.2.4
+     */
+    public static function removeDotSegments($path)
+    {
+        if ($path === '' || $path === '/') {
+            return $path;
+        }
+
+        $results = [];
+        $segments = explode('/', $path);
+        foreach ($segments as $segment) {
+            if ($segment === '..') {
+                array_pop($results);
+            } elseif ($segment !== '.') {
+                $results[] = $segment;
+            }
+        }
+
+        $newPath = implode('/', $results);
+
+        if ($path[0] === '/' && (!isset($newPath[0]) || $newPath[0] !== '/')) {
+            // Re-add the leading slash if necessary for cases like "/.."
+            $newPath = '/' . $newPath;
+        } elseif ($newPath !== '' && ($segment === '.' || $segment === '..')) {
+            // Add the trailing slash if necessary
+            // If newPath is not empty, then $segment must be set and is the last segment from the foreach
+            $newPath .= '/';
+        }
+
+        return $newPath;
+    }
+
+    /**
+     * Converts the relative URI into a new URI that is resolved against the base URI.
+     *
+     * @param UriInterface $base Base URI
+     * @param UriInterface $rel  Relative URI
+     *
+     * @return UriInterface
+     * @link http://tools.ietf.org/html/rfc3986#section-5.2
+     */
+    public static function resolve(UriInterface $base, UriInterface $rel)
+    {
+        if ((string) $rel === '') {
+            // we can simply return the same base URI instance for this same-document reference
+            return $base;
+        }
+
+        if ($rel->getScheme() != '') {
+            return $rel->withPath(self::removeDotSegments($rel->getPath()));
+        }
+
+        if ($rel->getAuthority() != '') {
+            $targetAuthority = $rel->getAuthority();
+            $targetPath = self::removeDotSegments($rel->getPath());
+            $targetQuery = $rel->getQuery();
+        } else {
+            $targetAuthority = $base->getAuthority();
+            if ($rel->getPath() === '') {
+                $targetPath = $base->getPath();
+                $targetQuery = $rel->getQuery() != '' ? $rel->getQuery() : $base->getQuery();
+            } else {
+                if ($rel->getPath()[0] === '/') {
+                    $targetPath = $rel->getPath();
+                } else {
+                    if ($targetAuthority != '' && $base->getPath() === '') {
+                        $targetPath = '/' . $rel->getPath();
+                    } else {
+                        $lastSlashPos = strrpos($base->getPath(), '/');
+                        if ($lastSlashPos === false) {
+                            $targetPath = $rel->getPath();
+                        } else {
+                            $targetPath = substr($base->getPath(), 0, $lastSlashPos + 1) . $rel->getPath();
+                        }
+                    }
+                }
+                $targetPath = self::removeDotSegments($targetPath);
+                $targetQuery = $rel->getQuery();
+            }
+        }
+
+        return new Uri(Uri::composeComponents(
+            $base->getScheme(),
+            $targetAuthority,
+            $targetPath,
+            $targetQuery,
+            $rel->getFragment()
+        ));
+    }
+
+    /**
+     * Returns the target URI as a relative reference from the base URI.
+     *
+     * This method is the counterpart to resolve():
+     *
+     *    (string) $target === (string) UriResolver::resolve($base, UriResolver::relativize($base, $target))
+     *
+     * One use-case is to use the current request URI as base URI and then generate relative links in your documents
+     * to reduce the document size or offer self-contained downloadable document archives.
+     *
+     *    $base = new Uri('http://example.com/a/b/');
+     *    echo UriResolver::relativize($base, new Uri('http://example.com/a/b/c'));  // prints 'c'.
+     *    echo UriResolver::relativize($base, new Uri('http://example.com/a/x/y'));  // prints '../x/y'.
+     *    echo UriResolver::relativize($base, new Uri('http://example.com/a/b/?q')); // prints '?q'.
+     *    echo UriResolver::relativize($base, new Uri('http://example.org/a/b/'));   // prints '//example.org/a/b/'.
+     *
+     * This method also accepts a target that is already relative and will try to relativize it further. Only a
+     * relative-path reference will be returned as-is.
+     *
+     *    echo UriResolver::relativize($base, new Uri('/a/b/c'));  // prints 'c' as well
+     *
+     * @param UriInterface $base   Base URI
+     * @param UriInterface $target Target URI
+     *
+     * @return UriInterface The relative URI reference
+     */
+    public static function relativize(UriInterface $base, UriInterface $target)
+    {
+        if ($target->getScheme() !== '' &&
+            ($base->getScheme() !== $target->getScheme() || $target->getAuthority() === '' && $base->getAuthority() !== '')
+        ) {
+            return $target;
+        }
+
+        if (Uri::isRelativePathReference($target)) {
+            // As the target is already highly relative we return it as-is. It would be possible to resolve
+            // the target with `$target = self::resolve($base, $target);` and then try make it more relative
+            // by removing a duplicate query. But let's not do that automatically.
+            return $target;
+        }
+
+        if ($target->getAuthority() !== '' && $base->getAuthority() !== $target->getAuthority()) {
+            return $target->withScheme('');
+        }
+
+        // We must remove the path before removing the authority because if the path starts with two slashes, the URI
+        // would turn invalid. And we also cannot set a relative path before removing the authority, as that is also
+        // invalid.
+        $emptyPathUri = $target->withScheme('')->withPath('')->withUserInfo('')->withPort(null)->withHost('');
+
+        if ($base->getPath() !== $target->getPath()) {
+            return $emptyPathUri->withPath(self::getRelativePath($base, $target));
+        }
+
+        if ($base->getQuery() === $target->getQuery()) {
+            // Only the target fragment is left. And it must be returned even if base and target fragment are the same.
+            return $emptyPathUri->withQuery('');
+        }
+
+        // If the base URI has a query but the target has none, we cannot return an empty path reference as it would
+        // inherit the base query component when resolving.
+        if ($target->getQuery() === '') {
+            $segments = explode('/', $target->getPath());
+            $lastSegment = end($segments);
+
+            return $emptyPathUri->withPath($lastSegment === '' ? './' : $lastSegment);
+        }
+
+        return $emptyPathUri;
+    }
+
+    private static function getRelativePath(UriInterface $base, UriInterface $target)
+    {
+        $sourceSegments = explode('/', $base->getPath());
+        $targetSegments = explode('/', $target->getPath());
+        array_pop($sourceSegments);
+        $targetLastSegment = array_pop($targetSegments);
+        foreach ($sourceSegments as $i => $segment) {
+            if (isset($targetSegments[$i]) && $segment === $targetSegments[$i]) {
+                unset($sourceSegments[$i], $targetSegments[$i]);
+            } else {
+                break;
+            }
+        }
+        $targetSegments[] = $targetLastSegment;
+        $relativePath = str_repeat('../', count($sourceSegments)) . implode('/', $targetSegments);
+
+        // A reference to am empty last segment or an empty first sub-segment must be prefixed with "./".
+        // This also applies to a segment with a colon character (e.g., "file:colon") that cannot be used
+        // as the first segment of a relative-path reference, as it would be mistaken for a scheme name.
+        if ('' === $relativePath || false !== strpos(explode('/', $relativePath, 2)[0], ':')) {
+            $relativePath = "./$relativePath";
+        } elseif ('/' === $relativePath[0]) {
+            if ($base->getAuthority() != '' && $base->getPath() === '') {
+                // In this case an extra slash is added by resolve() automatically. So we must not add one here.
+                $relativePath = ".$relativePath";
+            } else {
+                $relativePath = "./$relativePath";
+            }
+        }
+
+        return $relativePath;
+    }
+
+    private function __construct()
+    {
+        // cannot be instantiated
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/functions.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/functions.php
new file mode 100644
index 0000000..e40348d
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/functions.php
@@ -0,0 +1,828 @@
+<?php
+namespace GuzzleHttp\Psr7;
+
+use Psr\Http\Message\MessageInterface;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Message\StreamInterface;
+use Psr\Http\Message\UriInterface;
+
+/**
+ * Returns the string representation of an HTTP message.
+ *
+ * @param MessageInterface $message Message to convert to a string.
+ *
+ * @return string
+ */
+function str(MessageInterface $message)
+{
+    if ($message instanceof RequestInterface) {
+        $msg = trim($message->getMethod() . ' '
+                . $message->getRequestTarget())
+            . ' HTTP/' . $message->getProtocolVersion();
+        if (!$message->hasHeader('host')) {
+            $msg .= "\r\nHost: " . $message->getUri()->getHost();
+        }
+    } elseif ($message instanceof ResponseInterface) {
+        $msg = 'HTTP/' . $message->getProtocolVersion() . ' '
+            . $message->getStatusCode() . ' '
+            . $message->getReasonPhrase();
+    } else {
+        throw new \InvalidArgumentException('Unknown message type');
+    }
+
+    foreach ($message->getHeaders() as $name => $values) {
+        $msg .= "\r\n{$name}: " . implode(', ', $values);
+    }
+
+    return "{$msg}\r\n\r\n" . $message->getBody();
+}
+
+/**
+ * Returns a UriInterface for the given value.
+ *
+ * This function accepts a string or {@see Psr\Http\Message\UriInterface} and
+ * returns a UriInterface for the given value. If the value is already a
+ * `UriInterface`, it is returned as-is.
+ *
+ * @param string|UriInterface $uri
+ *
+ * @return UriInterface
+ * @throws \InvalidArgumentException
+ */
+function uri_for($uri)
+{
+    if ($uri instanceof UriInterface) {
+        return $uri;
+    } elseif (is_string($uri)) {
+        return new Uri($uri);
+    }
+
+    throw new \InvalidArgumentException('URI must be a string or UriInterface');
+}
+
+/**
+ * Create a new stream based on the input type.
+ *
+ * Options is an associative array that can contain the following keys:
+ * - metadata: Array of custom metadata.
+ * - size: Size of the stream.
+ *
+ * @param resource|string|null|int|float|bool|StreamInterface|callable $resource Entity body data
+ * @param array                                                        $options  Additional options
+ *
+ * @return Stream
+ * @throws \InvalidArgumentException if the $resource arg is not valid.
+ */
+function stream_for($resource = '', array $options = [])
+{
+    if (is_scalar($resource)) {
+        $stream = fopen('php://temp', 'r+');
+        if ($resource !== '') {
+            fwrite($stream, $resource);
+            fseek($stream, 0);
+        }
+        return new Stream($stream, $options);
+    }
+
+    switch (gettype($resource)) {
+        case 'resource':
+            return new Stream($resource, $options);
+        case 'object':
+            if ($resource instanceof StreamInterface) {
+                return $resource;
+            } elseif ($resource instanceof \Iterator) {
+                return new PumpStream(function () use ($resource) {
+                    if (!$resource->valid()) {
+                        return false;
+                    }
+                    $result = $resource->current();
+                    $resource->next();
+                    return $result;
+                }, $options);
+            } elseif (method_exists($resource, '__toString')) {
+                return stream_for((string) $resource, $options);
+            }
+            break;
+        case 'NULL':
+            return new Stream(fopen('php://temp', 'r+'), $options);
+    }
+
+    if (is_callable($resource)) {
+        return new PumpStream($resource, $options);
+    }
+
+    throw new \InvalidArgumentException('Invalid resource type: ' . gettype($resource));
+}
+
+/**
+ * Parse an array of header values containing ";" separated data into an
+ * array of associative arrays representing the header key value pair
+ * data of the header. When a parameter does not contain a value, but just
+ * contains a key, this function will inject a key with a '' string value.
+ *
+ * @param string|array $header Header to parse into components.
+ *
+ * @return array Returns the parsed header values.
+ */
+function parse_header($header)
+{
+    static $trimmed = "\"'  \n\t\r";
+    $params = $matches = [];
+
+    foreach (normalize_header($header) as $val) {
+        $part = [];
+        foreach (preg_split('/;(?=([^"]*"[^"]*")*[^"]*$)/', $val) as $kvp) {
+            if (preg_match_all('/<[^>]+>|[^=]+/', $kvp, $matches)) {
+                $m = $matches[0];
+                if (isset($m[1])) {
+                    $part[trim($m[0], $trimmed)] = trim($m[1], $trimmed);
+                } else {
+                    $part[] = trim($m[0], $trimmed);
+                }
+            }
+        }
+        if ($part) {
+            $params[] = $part;
+        }
+    }
+
+    return $params;
+}
+
+/**
+ * Converts an array of header values that may contain comma separated
+ * headers into an array of headers with no comma separated values.
+ *
+ * @param string|array $header Header to normalize.
+ *
+ * @return array Returns the normalized header field values.
+ */
+function normalize_header($header)
+{
+    if (!is_array($header)) {
+        return array_map('trim', explode(',', $header));
+    }
+
+    $result = [];
+    foreach ($header as $value) {
+        foreach ((array) $value as $v) {
+            if (strpos($v, ',') === false) {
+                $result[] = $v;
+                continue;
+            }
+            foreach (preg_split('/,(?=([^"]*"[^"]*")*[^"]*$)/', $v) as $vv) {
+                $result[] = trim($vv);
+            }
+        }
+    }
+
+    return $result;
+}
+
+/**
+ * Clone and modify a request with the given changes.
+ *
+ * The changes can be one of:
+ * - method: (string) Changes the HTTP method.
+ * - set_headers: (array) Sets the given headers.
+ * - remove_headers: (array) Remove the given headers.
+ * - body: (mixed) Sets the given body.
+ * - uri: (UriInterface) Set the URI.
+ * - query: (string) Set the query string value of the URI.
+ * - version: (string) Set the protocol version.
+ *
+ * @param RequestInterface $request Request to clone and modify.
+ * @param array            $changes Changes to apply.
+ *
+ * @return RequestInterface
+ */
+function modify_request(RequestInterface $request, array $changes)
+{
+    if (!$changes) {
+        return $request;
+    }
+
+    $headers = $request->getHeaders();
+
+    if (!isset($changes['uri'])) {
+        $uri = $request->getUri();
+    } else {
+        // Remove the host header if one is on the URI
+        if ($host = $changes['uri']->getHost()) {
+            $changes['set_headers']['Host'] = $host;
+
+            if ($port = $changes['uri']->getPort()) {
+                $standardPorts = ['http' => 80, 'https' => 443];
+                $scheme = $changes['uri']->getScheme();
+                if (isset($standardPorts[$scheme]) && $port != $standardPorts[$scheme]) {
+                    $changes['set_headers']['Host'] .= ':'.$port;
+                }
+            }
+        }
+        $uri = $changes['uri'];
+    }
+
+    if (!empty($changes['remove_headers'])) {
+        $headers = _caseless_remove($changes['remove_headers'], $headers);
+    }
+
+    if (!empty($changes['set_headers'])) {
+        $headers = _caseless_remove(array_keys($changes['set_headers']), $headers);
+        $headers = $changes['set_headers'] + $headers;
+    }
+
+    if (isset($changes['query'])) {
+        $uri = $uri->withQuery($changes['query']);
+    }
+
+    if ($request instanceof ServerRequestInterface) {
+        return new ServerRequest(
+            isset($changes['method']) ? $changes['method'] : $request->getMethod(),
+            $uri,
+            $headers,
+            isset($changes['body']) ? $changes['body'] : $request->getBody(),
+            isset($changes['version'])
+                ? $changes['version']
+                : $request->getProtocolVersion(),
+            $request->getServerParams()
+        );
+    }
+
+    return new Request(
+        isset($changes['method']) ? $changes['method'] : $request->getMethod(),
+        $uri,
+        $headers,
+        isset($changes['body']) ? $changes['body'] : $request->getBody(),
+        isset($changes['version'])
+            ? $changes['version']
+            : $request->getProtocolVersion()
+    );
+}
+
+/**
+ * Attempts to rewind a message body and throws an exception on failure.
+ *
+ * The body of the message will only be rewound if a call to `tell()` returns a
+ * value other than `0`.
+ *
+ * @param MessageInterface $message Message to rewind
+ *
+ * @throws \RuntimeException
+ */
+function rewind_body(MessageInterface $message)
+{
+    $body = $message->getBody();
+
+    if ($body->tell()) {
+        $body->rewind();
+    }
+}
+
+/**
+ * Safely opens a PHP stream resource using a filename.
+ *
+ * When fopen fails, PHP normally raises a warning. This function adds an
+ * error handler that checks for errors and throws an exception instead.
+ *
+ * @param string $filename File to open
+ * @param string $mode     Mode used to open the file
+ *
+ * @return resource
+ * @throws \RuntimeException if the file cannot be opened
+ */
+function try_fopen($filename, $mode)
+{
+    $ex = null;
+    set_error_handler(function () use ($filename, $mode, &$ex) {
+        $ex = new \RuntimeException(sprintf(
+            'Unable to open %s using mode %s: %s',
+            $filename,
+            $mode,
+            func_get_args()[1]
+        ));
+    });
+
+    $handle = fopen($filename, $mode);
+    restore_error_handler();
+
+    if ($ex) {
+        /** @var $ex \RuntimeException */
+        throw $ex;
+    }
+
+    return $handle;
+}
+
+/**
+ * Copy the contents of a stream into a string until the given number of
+ * bytes have been read.
+ *
+ * @param StreamInterface $stream Stream to read
+ * @param int             $maxLen Maximum number of bytes to read. Pass -1
+ *                                to read the entire stream.
+ * @return string
+ * @throws \RuntimeException on error.
+ */
+function copy_to_string(StreamInterface $stream, $maxLen = -1)
+{
+    $buffer = '';
+
+    if ($maxLen === -1) {
+        while (!$stream->eof()) {
+            $buf = $stream->read(1048576);
+            // Using a loose equality here to match on '' and false.
+            if ($buf == null) {
+                break;
+            }
+            $buffer .= $buf;
+        }
+        return $buffer;
+    }
+
+    $len = 0;
+    while (!$stream->eof() && $len < $maxLen) {
+        $buf = $stream->read($maxLen - $len);
+        // Using a loose equality here to match on '' and false.
+        if ($buf == null) {
+            break;
+        }
+        $buffer .= $buf;
+        $len = strlen($buffer);
+    }
+
+    return $buffer;
+}
+
+/**
+ * Copy the contents of a stream into another stream until the given number
+ * of bytes have been read.
+ *
+ * @param StreamInterface $source Stream to read from
+ * @param StreamInterface $dest   Stream to write to
+ * @param int             $maxLen Maximum number of bytes to read. Pass -1
+ *                                to read the entire stream.
+ *
+ * @throws \RuntimeException on error.
+ */
+function copy_to_stream(
+    StreamInterface $source,
+    StreamInterface $dest,
+    $maxLen = -1
+) {
+    $bufferSize = 8192;
+
+    if ($maxLen === -1) {
+        while (!$source->eof()) {
+            if (!$dest->write($source->read($bufferSize))) {
+                break;
+            }
+        }
+    } else {
+        $remaining = $maxLen;
+        while ($remaining > 0 && !$source->eof()) {
+            $buf = $source->read(min($bufferSize, $remaining));
+            $len = strlen($buf);
+            if (!$len) {
+                break;
+            }
+            $remaining -= $len;
+            $dest->write($buf);
+        }
+    }
+}
+
+/**
+ * Calculate a hash of a Stream
+ *
+ * @param StreamInterface $stream    Stream to calculate the hash for
+ * @param string          $algo      Hash algorithm (e.g. md5, crc32, etc)
+ * @param bool            $rawOutput Whether or not to use raw output
+ *
+ * @return string Returns the hash of the stream
+ * @throws \RuntimeException on error.
+ */
+function hash(
+    StreamInterface $stream,
+    $algo,
+    $rawOutput = false
+) {
+    $pos = $stream->tell();
+
+    if ($pos > 0) {
+        $stream->rewind();
+    }
+
+    $ctx = hash_init($algo);
+    while (!$stream->eof()) {
+        hash_update($ctx, $stream->read(1048576));
+    }
+
+    $out = hash_final($ctx, (bool) $rawOutput);
+    $stream->seek($pos);
+
+    return $out;
+}
+
+/**
+ * Read a line from the stream up to the maximum allowed buffer length
+ *
+ * @param StreamInterface $stream    Stream to read from
+ * @param int             $maxLength Maximum buffer length
+ *
+ * @return string|bool
+ */
+function readline(StreamInterface $stream, $maxLength = null)
+{
+    $buffer = '';
+    $size = 0;
+
+    while (!$stream->eof()) {
+        // Using a loose equality here to match on '' and false.
+        if (null == ($byte = $stream->read(1))) {
+            return $buffer;
+        }
+        $buffer .= $byte;
+        // Break when a new line is found or the max length - 1 is reached
+        if ($byte === "\n" || ++$size === $maxLength - 1) {
+            break;
+        }
+    }
+
+    return $buffer;
+}
+
+/**
+ * Parses a request message string into a request object.
+ *
+ * @param string $message Request message string.
+ *
+ * @return Request
+ */
+function parse_request($message)
+{
+    $data = _parse_message($message);
+    $matches = [];
+    if (!preg_match('/^[\S]+\s+([a-zA-Z]+:\/\/|\/).*/', $data['start-line'], $matches)) {
+        throw new \InvalidArgumentException('Invalid request string');
+    }
+    $parts = explode(' ', $data['start-line'], 3);
+    $version = isset($parts[2]) ? explode('/', $parts[2])[1] : '1.1';
+
+    $request = new Request(
+        $parts[0],
+        $matches[1] === '/' ? _parse_request_uri($parts[1], $data['headers']) : $parts[1],
+        $data['headers'],
+        $data['body'],
+        $version
+    );
+
+    return $matches[1] === '/' ? $request : $request->withRequestTarget($parts[1]);
+}
+
+/**
+ * Parses a response message string into a response object.
+ *
+ * @param string $message Response message string.
+ *
+ * @return Response
+ */
+function parse_response($message)
+{
+    $data = _parse_message($message);
+    // According to https://tools.ietf.org/html/rfc7230#section-3.1.2 the space
+    // between status-code and reason-phrase is required. But browsers accept
+    // responses without space and reason as well.
+    if (!preg_match('/^HTTP\/.* [0-9]{3}( .*|$)/', $data['start-line'])) {
+        throw new \InvalidArgumentException('Invalid response string');
+    }
+    $parts = explode(' ', $data['start-line'], 3);
+
+    return new Response(
+        $parts[1],
+        $data['headers'],
+        $data['body'],
+        explode('/', $parts[0])[1],
+        isset($parts[2]) ? $parts[2] : null
+    );
+}
+
+/**
+ * Parse a query string into an associative array.
+ *
+ * If multiple values are found for the same key, the value of that key
+ * value pair will become an array. This function does not parse nested
+ * PHP style arrays into an associative array (e.g., foo[a]=1&foo[b]=2 will
+ * be parsed into ['foo[a]' => '1', 'foo[b]' => '2']).
+ *
+ * @param string      $str         Query string to parse
+ * @param bool|string $urlEncoding How the query string is encoded
+ *
+ * @return array
+ */
+function parse_query($str, $urlEncoding = true)
+{
+    $result = [];
+
+    if ($str === '') {
+        return $result;
+    }
+
+    if ($urlEncoding === true) {
+        $decoder = function ($value) {
+            return rawurldecode(str_replace('+', ' ', $value));
+        };
+    } elseif ($urlEncoding == PHP_QUERY_RFC3986) {
+        $decoder = 'rawurldecode';
+    } elseif ($urlEncoding == PHP_QUERY_RFC1738) {
+        $decoder = 'urldecode';
+    } else {
+        $decoder = function ($str) { return $str; };
+    }
+
+    foreach (explode('&', $str) as $kvp) {
+        $parts = explode('=', $kvp, 2);
+        $key = $decoder($parts[0]);
+        $value = isset($parts[1]) ? $decoder($parts[1]) : null;
+        if (!isset($result[$key])) {
+            $result[$key] = $value;
+        } else {
+            if (!is_array($result[$key])) {
+                $result[$key] = [$result[$key]];
+            }
+            $result[$key][] = $value;
+        }
+    }
+
+    return $result;
+}
+
+/**
+ * Build a query string from an array of key value pairs.
+ *
+ * This function can use the return value of parse_query() to build a query
+ * string. This function does not modify the provided keys when an array is
+ * encountered (like http_build_query would).
+ *
+ * @param array     $params   Query string parameters.
+ * @param int|false $encoding Set to false to not encode, PHP_QUERY_RFC3986
+ *                            to encode using RFC3986, or PHP_QUERY_RFC1738
+ *                            to encode using RFC1738.
+ * @return string
+ */
+function build_query(array $params, $encoding = PHP_QUERY_RFC3986)
+{
+    if (!$params) {
+        return '';
+    }
+
+    if ($encoding === false) {
+        $encoder = function ($str) { return $str; };
+    } elseif ($encoding === PHP_QUERY_RFC3986) {
+        $encoder = 'rawurlencode';
+    } elseif ($encoding === PHP_QUERY_RFC1738) {
+        $encoder = 'urlencode';
+    } else {
+        throw new \InvalidArgumentException('Invalid type');
+    }
+
+    $qs = '';
+    foreach ($params as $k => $v) {
+        $k = $encoder($k);
+        if (!is_array($v)) {
+            $qs .= $k;
+            if ($v !== null) {
+                $qs .= '=' . $encoder($v);
+            }
+            $qs .= '&';
+        } else {
+            foreach ($v as $vv) {
+                $qs .= $k;
+                if ($vv !== null) {
+                    $qs .= '=' . $encoder($vv);
+                }
+                $qs .= '&';
+            }
+        }
+    }
+
+    return $qs ? (string) substr($qs, 0, -1) : '';
+}
+
+/**
+ * Determines the mimetype of a file by looking at its extension.
+ *
+ * @param $filename
+ *
+ * @return null|string
+ */
+function mimetype_from_filename($filename)
+{
+    return mimetype_from_extension(pathinfo($filename, PATHINFO_EXTENSION));
+}
+
+/**
+ * Maps a file extensions to a mimetype.
+ *
+ * @param $extension string The file extension.
+ *
+ * @return string|null
+ * @link http://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x/conf/mime.types
+ */
+function mimetype_from_extension($extension)
+{
+    static $mimetypes = [
+        '7z' => 'application/x-7z-compressed',
+        'aac' => 'audio/x-aac',
+        'ai' => 'application/postscript',
+        'aif' => 'audio/x-aiff',
+        'asc' => 'text/plain',
+        'asf' => 'video/x-ms-asf',
+        'atom' => 'application/atom+xml',
+        'avi' => 'video/x-msvideo',
+        'bmp' => 'image/bmp',
+        'bz2' => 'application/x-bzip2',
+        'cer' => 'application/pkix-cert',
+        'crl' => 'application/pkix-crl',
+        'crt' => 'application/x-x509-ca-cert',
+        'css' => 'text/css',
+        'csv' => 'text/csv',
+        'cu' => 'application/cu-seeme',
+        'deb' => 'application/x-debian-package',
+        'doc' => 'application/msword',
+        'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+        'dvi' => 'application/x-dvi',
+        'eot' => 'application/vnd.ms-fontobject',
+        'eps' => 'application/postscript',
+        'epub' => 'application/epub+zip',
+        'etx' => 'text/x-setext',
+        'flac' => 'audio/flac',
+        'flv' => 'video/x-flv',
+        'gif' => 'image/gif',
+        'gz' => 'application/gzip',
+        'htm' => 'text/html',
+        'html' => 'text/html',
+        'ico' => 'image/x-icon',
+        'ics' => 'text/calendar',
+        'ini' => 'text/plain',
+        'iso' => 'application/x-iso9660-image',
+        'jar' => 'application/java-archive',
+        'jpe' => 'image/jpeg',
+        'jpeg' => 'image/jpeg',
+        'jpg' => 'image/jpeg',
+        'js' => 'text/javascript',
+        'json' => 'application/json',
+        'latex' => 'application/x-latex',
+        'log' => 'text/plain',
+        'm4a' => 'audio/mp4',
+        'm4v' => 'video/mp4',
+        'mid' => 'audio/midi',
+        'midi' => 'audio/midi',
+        'mov' => 'video/quicktime',
+        'mp3' => 'audio/mpeg',
+        'mp4' => 'video/mp4',
+        'mp4a' => 'audio/mp4',
+        'mp4v' => 'video/mp4',
+        'mpe' => 'video/mpeg',
+        'mpeg' => 'video/mpeg',
+        'mpg' => 'video/mpeg',
+        'mpg4' => 'video/mp4',
+        'oga' => 'audio/ogg',
+        'ogg' => 'audio/ogg',
+        'ogv' => 'video/ogg',
+        'ogx' => 'application/ogg',
+        'pbm' => 'image/x-portable-bitmap',
+        'pdf' => 'application/pdf',
+        'pgm' => 'image/x-portable-graymap',
+        'png' => 'image/png',
+        'pnm' => 'image/x-portable-anymap',
+        'ppm' => 'image/x-portable-pixmap',
+        'ppt' => 'application/vnd.ms-powerpoint',
+        'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+        'ps' => 'application/postscript',
+        'qt' => 'video/quicktime',
+        'rar' => 'application/x-rar-compressed',
+        'ras' => 'image/x-cmu-raster',
+        'rss' => 'application/rss+xml',
+        'rtf' => 'application/rtf',
+        'sgm' => 'text/sgml',
+        'sgml' => 'text/sgml',
+        'svg' => 'image/svg+xml',
+        'swf' => 'application/x-shockwave-flash',
+        'tar' => 'application/x-tar',
+        'tif' => 'image/tiff',
+        'tiff' => 'image/tiff',
+        'torrent' => 'application/x-bittorrent',
+        'ttf' => 'application/x-font-ttf',
+        'txt' => 'text/plain',
+        'wav' => 'audio/x-wav',
+        'webm' => 'video/webm',
+        'wma' => 'audio/x-ms-wma',
+        'wmv' => 'video/x-ms-wmv',
+        'woff' => 'application/x-font-woff',
+        'wsdl' => 'application/wsdl+xml',
+        'xbm' => 'image/x-xbitmap',
+        'xls' => 'application/vnd.ms-excel',
+        'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+        'xml' => 'application/xml',
+        'xpm' => 'image/x-xpixmap',
+        'xwd' => 'image/x-xwindowdump',
+        'yaml' => 'text/yaml',
+        'yml' => 'text/yaml',
+        'zip' => 'application/zip',
+    ];
+
+    $extension = strtolower($extension);
+
+    return isset($mimetypes[$extension])
+        ? $mimetypes[$extension]
+        : null;
+}
+
+/**
+ * Parses an HTTP message into an associative array.
+ *
+ * The array contains the "start-line" key containing the start line of
+ * the message, "headers" key containing an associative array of header
+ * array values, and a "body" key containing the body of the message.
+ *
+ * @param string $message HTTP request or response to parse.
+ *
+ * @return array
+ * @internal
+ */
+function _parse_message($message)
+{
+    if (!$message) {
+        throw new \InvalidArgumentException('Invalid message');
+    }
+
+    // Iterate over each line in the message, accounting for line endings
+    $lines = preg_split('/(\\r?\\n)/', $message, -1, PREG_SPLIT_DELIM_CAPTURE);
+    $result = ['start-line' => array_shift($lines), 'headers' => [], 'body' => ''];
+    array_shift($lines);
+
+    for ($i = 0, $totalLines = count($lines); $i < $totalLines; $i += 2) {
+        $line = $lines[$i];
+        // If two line breaks were encountered, then this is the end of body
+        if (empty($line)) {
+            if ($i < $totalLines - 1) {
+                $result['body'] = implode('', array_slice($lines, $i + 2));
+            }
+            break;
+        }
+        if (strpos($line, ':')) {
+            $parts = explode(':', $line, 2);
+            $key = trim($parts[0]);
+            $value = isset($parts[1]) ? trim($parts[1]) : '';
+            $result['headers'][$key][] = $value;
+        }
+    }
+
+    return $result;
+}
+
+/**
+ * Constructs a URI for an HTTP request message.
+ *
+ * @param string $path    Path from the start-line
+ * @param array  $headers Array of headers (each value an array).
+ *
+ * @return string
+ * @internal
+ */
+function _parse_request_uri($path, array $headers)
+{
+    $hostKey = array_filter(array_keys($headers), function ($k) {
+        return strtolower($k) === 'host';
+    });
+
+    // If no host is found, then a full URI cannot be constructed.
+    if (!$hostKey) {
+        return $path;
+    }
+
+    $host = $headers[reset($hostKey)][0];
+    $scheme = substr($host, -4) === ':443' ? 'https' : 'http';
+
+    return $scheme . '://' . $host . '/' . ltrim($path, '/');
+}
+
+/** @internal */
+function _caseless_remove($keys, array $data)
+{
+    $result = [];
+
+    foreach ($keys as &$key) {
+        $key = strtolower($key);
+    }
+
+    foreach ($data as $k => $v) {
+        if (!in_array(strtolower($k), $keys)) {
+            $result[$k] = $v;
+        }
+    }
+
+    return $result;
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/functions_include.php b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/functions_include.php
new file mode 100644
index 0000000..96a4a83
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/guzzlehttp/psr7/src/functions_include.php
@@ -0,0 +1,6 @@
+<?php
+
+// Don't redefine the functions if included multiple times.
+if (!function_exists('GuzzleHttp\Psr7\str')) {
+    require __DIR__ . '/functions.php';
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/.php_cs b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/.php_cs
new file mode 100644
index 0000000..366ccd0
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/.php_cs
@@ -0,0 +1,59 @@
+<?php
+
+$header = <<<EOF
+This file is part of the Monolog package.
+
+(c) Jordi Boggiano <j.boggiano@seld.be>
+
+For the full copyright and license information, please view the LICENSE
+file that was distributed with this source code.
+EOF;
+
+$finder = Symfony\CS\Finder::create()
+    ->files()
+    ->name('*.php')
+    ->exclude('Fixtures')
+    ->in(__DIR__.'/src')
+    ->in(__DIR__.'/tests')
+;
+
+return Symfony\CS\Config::create()
+    ->setUsingCache(true)
+    //->setUsingLinter(false)
+    ->setRiskyAllowed(true)
+    ->setRules(array(
+        '@PSR2' => true,
+        'binary_operator_spaces' => true,
+        'blank_line_before_return' => true,
+        'header_comment' => array('header' => $header),
+        'include' => true,
+        'long_array_syntax' => true,
+        'method_separation' => true,
+        'no_blank_lines_after_class_opening' => true,
+        'no_blank_lines_after_phpdoc' => true,
+        'no_blank_lines_between_uses' => true,
+        'no_duplicate_semicolons' => true,
+        'no_extra_consecutive_blank_lines' => true,
+        'no_leading_import_slash' => true,
+        'no_leading_namespace_whitespace' => true,
+        'no_trailing_comma_in_singleline_array' => true,
+        'no_unused_imports' => true,
+        'object_operator_without_whitespace' => true,
+        'phpdoc_align' => true,
+        'phpdoc_indent' => true,
+        'phpdoc_no_access' => true,
+        'phpdoc_no_package' => true,
+        'phpdoc_order' => true,
+        'phpdoc_scalar' => true,
+        'phpdoc_trim' => true,
+        'phpdoc_type_to_var' => true,
+        'psr0' => true,
+        'single_blank_line_before_namespace' => true,
+        'spaces_cast' => true,
+        'standardize_not_equals' => true,
+        'ternary_operator_spaces' => true,
+        'trailing_comma_in_multiline_array' => true,
+        'whitespacy_lines' => true,
+    ))
+    ->finder($finder)
+;
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/LICENSE
new file mode 100644
index 0000000..1647321
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2011-2016 Jordi Boggiano
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/composer.json b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/composer.json
new file mode 100644
index 0000000..3b0c880
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/composer.json
@@ -0,0 +1,66 @@
+{
+    "name": "monolog/monolog",
+    "description": "Sends your logs to files, sockets, inboxes, databases and various web services",
+    "keywords": ["log", "logging", "psr-3"],
+    "homepage": "http://github.com/Seldaek/monolog",
+    "type": "library",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Jordi Boggiano",
+            "email": "j.boggiano@seld.be",
+            "homepage": "http://seld.be"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.0",
+        "psr/log": "~1.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "~4.5",
+        "graylog2/gelf-php": "~1.0",
+        "sentry/sentry": "^0.13",
+        "ruflin/elastica": ">=0.90 <3.0",
+        "doctrine/couchdb": "~1.0@dev",
+        "aws/aws-sdk-php": "^2.4.9 || ^3.0",
+        "php-amqplib/php-amqplib": "~2.4",
+        "swiftmailer/swiftmailer": "^5.3|^6.0",
+        "php-console/php-console": "^3.1.3",
+        "phpunit/phpunit-mock-objects": "2.3.0",
+        "jakub-onderka/php-parallel-lint": "0.9"
+    },
+    "_": "phpunit/phpunit-mock-objects required in 2.3.0 due to https://github.com/sebastianbergmann/phpunit-mock-objects/issues/223 - needs hhvm 3.8+ on travis",
+    "suggest": {
+        "graylog2/gelf-php": "Allow sending log messages to a GrayLog2 server",
+        "sentry/sentry": "Allow sending log messages to a Sentry server",
+        "doctrine/couchdb": "Allow sending log messages to a CouchDB server",
+        "ruflin/elastica": "Allow sending log messages to an Elastic Search server",
+        "php-amqplib/php-amqplib": "Allow sending log messages to an AMQP server using php-amqplib",
+        "ext-amqp": "Allow sending log messages to an AMQP server (1.0+ required)",
+        "ext-mongo": "Allow sending log messages to a MongoDB server",
+        "mongodb/mongodb": "Allow sending log messages to a MongoDB server via PHP Driver",
+        "aws/aws-sdk-php": "Allow sending log messages to AWS services like DynamoDB",
+        "rollbar/rollbar": "Allow sending log messages to Rollbar",
+        "php-console/php-console": "Allow sending log messages to Google Chrome"
+    },
+    "autoload": {
+        "psr-4": {"Monolog\\": "src/Monolog"}
+    },
+    "autoload-dev": {
+        "psr-4": {"Monolog\\": "tests/Monolog"}
+    },
+    "provide": {
+        "psr/log-implementation": "1.0.0"
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "2.0.x-dev"
+        }
+    },
+    "scripts": {
+        "test": [
+            "parallel-lint . --exclude vendor",
+            "phpunit"
+        ]
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/ErrorHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/ErrorHandler.php
new file mode 100644
index 0000000..7bfcd83
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/ErrorHandler.php
@@ -0,0 +1,230 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog;
+
+use Psr\Log\LoggerInterface;
+use Psr\Log\LogLevel;
+use Monolog\Handler\AbstractHandler;
+
+/**
+ * Monolog error handler
+ *
+ * A facility to enable logging of runtime errors, exceptions and fatal errors.
+ *
+ * Quick setup: <code>ErrorHandler::register($logger);</code>
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class ErrorHandler
+{
+    private $logger;
+
+    private $previousExceptionHandler;
+    private $uncaughtExceptionLevel;
+
+    private $previousErrorHandler;
+    private $errorLevelMap;
+    private $handleOnlyReportedErrors;
+
+    private $hasFatalErrorHandler;
+    private $fatalLevel;
+    private $reservedMemory;
+    private static $fatalErrors = array(E_ERROR, E_PARSE, E_CORE_ERROR, E_COMPILE_ERROR, E_USER_ERROR);
+
+    public function __construct(LoggerInterface $logger)
+    {
+        $this->logger = $logger;
+    }
+
+    /**
+     * Registers a new ErrorHandler for a given Logger
+     *
+     * By default it will handle errors, exceptions and fatal errors
+     *
+     * @param  LoggerInterface $logger
+     * @param  array|false     $errorLevelMap  an array of E_* constant to LogLevel::* constant mapping, or false to disable error handling
+     * @param  int|false       $exceptionLevel a LogLevel::* constant, or false to disable exception handling
+     * @param  int|false       $fatalLevel     a LogLevel::* constant, or false to disable fatal error handling
+     * @return ErrorHandler
+     */
+    public static function register(LoggerInterface $logger, $errorLevelMap = array(), $exceptionLevel = null, $fatalLevel = null)
+    {
+        //Forces the autoloader to run for LogLevel. Fixes an autoload issue at compile-time on PHP5.3. See https://github.com/Seldaek/monolog/pull/929
+        class_exists('\\Psr\\Log\\LogLevel', true);
+
+        $handler = new static($logger);
+        if ($errorLevelMap !== false) {
+            $handler->registerErrorHandler($errorLevelMap);
+        }
+        if ($exceptionLevel !== false) {
+            $handler->registerExceptionHandler($exceptionLevel);
+        }
+        if ($fatalLevel !== false) {
+            $handler->registerFatalHandler($fatalLevel);
+        }
+
+        return $handler;
+    }
+
+    public function registerExceptionHandler($level = null, $callPrevious = true)
+    {
+        $prev = set_exception_handler(array($this, 'handleException'));
+        $this->uncaughtExceptionLevel = $level;
+        if ($callPrevious && $prev) {
+            $this->previousExceptionHandler = $prev;
+        }
+    }
+
+    public function registerErrorHandler(array $levelMap = array(), $callPrevious = true, $errorTypes = -1, $handleOnlyReportedErrors = true)
+    {
+        $prev = set_error_handler(array($this, 'handleError'), $errorTypes);
+        $this->errorLevelMap = array_replace($this->defaultErrorLevelMap(), $levelMap);
+        if ($callPrevious) {
+            $this->previousErrorHandler = $prev ?: true;
+        }
+
+        $this->handleOnlyReportedErrors = $handleOnlyReportedErrors;
+    }
+
+    public function registerFatalHandler($level = null, $reservedMemorySize = 20)
+    {
+        register_shutdown_function(array($this, 'handleFatalError'));
+
+        $this->reservedMemory = str_repeat(' ', 1024 * $reservedMemorySize);
+        $this->fatalLevel = $level;
+        $this->hasFatalErrorHandler = true;
+    }
+
+    protected function defaultErrorLevelMap()
+    {
+        return array(
+            E_ERROR             => LogLevel::CRITICAL,
+            E_WARNING           => LogLevel::WARNING,
+            E_PARSE             => LogLevel::ALERT,
+            E_NOTICE            => LogLevel::NOTICE,
+            E_CORE_ERROR        => LogLevel::CRITICAL,
+            E_CORE_WARNING      => LogLevel::WARNING,
+            E_COMPILE_ERROR     => LogLevel::ALERT,
+            E_COMPILE_WARNING   => LogLevel::WARNING,
+            E_USER_ERROR        => LogLevel::ERROR,
+            E_USER_WARNING      => LogLevel::WARNING,
+            E_USER_NOTICE       => LogLevel::NOTICE,
+            E_STRICT            => LogLevel::NOTICE,
+            E_RECOVERABLE_ERROR => LogLevel::ERROR,
+            E_DEPRECATED        => LogLevel::NOTICE,
+            E_USER_DEPRECATED   => LogLevel::NOTICE,
+        );
+    }
+
+    /**
+     * @private
+     */
+    public function handleException($e)
+    {
+        $this->logger->log(
+            $this->uncaughtExceptionLevel === null ? LogLevel::ERROR : $this->uncaughtExceptionLevel,
+            sprintf('Uncaught Exception %s: "%s" at %s line %s', get_class($e), $e->getMessage(), $e->getFile(), $e->getLine()),
+            array('exception' => $e)
+        );
+
+        if ($this->previousExceptionHandler) {
+            call_user_func($this->previousExceptionHandler, $e);
+        }
+
+        exit(255);
+    }
+
+    /**
+     * @private
+     */
+    public function handleError($code, $message, $file = '', $line = 0, $context = array())
+    {
+        if ($this->handleOnlyReportedErrors && !(error_reporting() & $code)) {
+            return;
+        }
+
+        // fatal error codes are ignored if a fatal error handler is present as well to avoid duplicate log entries
+        if (!$this->hasFatalErrorHandler || !in_array($code, self::$fatalErrors, true)) {
+            $level = isset($this->errorLevelMap[$code]) ? $this->errorLevelMap[$code] : LogLevel::CRITICAL;
+            $this->logger->log($level, self::codeToString($code).': '.$message, array('code' => $code, 'message' => $message, 'file' => $file, 'line' => $line));
+        }
+
+        if ($this->previousErrorHandler === true) {
+            return false;
+        } elseif ($this->previousErrorHandler) {
+            return call_user_func($this->previousErrorHandler, $code, $message, $file, $line, $context);
+        }
+    }
+
+    /**
+     * @private
+     */
+    public function handleFatalError()
+    {
+        $this->reservedMemory = null;
+
+        $lastError = error_get_last();
+        if ($lastError && in_array($lastError['type'], self::$fatalErrors, true)) {
+            $this->logger->log(
+                $this->fatalLevel === null ? LogLevel::ALERT : $this->fatalLevel,
+                'Fatal Error ('.self::codeToString($lastError['type']).'): '.$lastError['message'],
+                array('code' => $lastError['type'], 'message' => $lastError['message'], 'file' => $lastError['file'], 'line' => $lastError['line'])
+            );
+
+            if ($this->logger instanceof Logger) {
+                foreach ($this->logger->getHandlers() as $handler) {
+                    if ($handler instanceof AbstractHandler) {
+                        $handler->close();
+                    }
+                }
+            }
+        }
+    }
+
+    private static function codeToString($code)
+    {
+        switch ($code) {
+            case E_ERROR:
+                return 'E_ERROR';
+            case E_WARNING:
+                return 'E_WARNING';
+            case E_PARSE:
+                return 'E_PARSE';
+            case E_NOTICE:
+                return 'E_NOTICE';
+            case E_CORE_ERROR:
+                return 'E_CORE_ERROR';
+            case E_CORE_WARNING:
+                return 'E_CORE_WARNING';
+            case E_COMPILE_ERROR:
+                return 'E_COMPILE_ERROR';
+            case E_COMPILE_WARNING:
+                return 'E_COMPILE_WARNING';
+            case E_USER_ERROR:
+                return 'E_USER_ERROR';
+            case E_USER_WARNING:
+                return 'E_USER_WARNING';
+            case E_USER_NOTICE:
+                return 'E_USER_NOTICE';
+            case E_STRICT:
+                return 'E_STRICT';
+            case E_RECOVERABLE_ERROR:
+                return 'E_RECOVERABLE_ERROR';
+            case E_DEPRECATED:
+                return 'E_DEPRECATED';
+            case E_USER_DEPRECATED:
+                return 'E_USER_DEPRECATED';
+        }
+
+        return 'Unknown PHP error';
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/ChromePHPFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/ChromePHPFormatter.php
new file mode 100644
index 0000000..9beda1e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/ChromePHPFormatter.php
@@ -0,0 +1,78 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+use Monolog\Logger;
+
+/**
+ * Formats a log message according to the ChromePHP array format
+ *
+ * @author Christophe Coevoet <stof@notk.org>
+ */
+class ChromePHPFormatter implements FormatterInterface
+{
+    /**
+     * Translates Monolog log levels to Wildfire levels.
+     */
+    private $logLevels = array(
+        Logger::DEBUG     => 'log',
+        Logger::INFO      => 'info',
+        Logger::NOTICE    => 'info',
+        Logger::WARNING   => 'warn',
+        Logger::ERROR     => 'error',
+        Logger::CRITICAL  => 'error',
+        Logger::ALERT     => 'error',
+        Logger::EMERGENCY => 'error',
+    );
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        // Retrieve the line and file if set and remove them from the formatted extra
+        $backtrace = 'unknown';
+        if (isset($record['extra']['file'], $record['extra']['line'])) {
+            $backtrace = $record['extra']['file'].' : '.$record['extra']['line'];
+            unset($record['extra']['file'], $record['extra']['line']);
+        }
+
+        $message = array('message' => $record['message']);
+        if ($record['context']) {
+            $message['context'] = $record['context'];
+        }
+        if ($record['extra']) {
+            $message['extra'] = $record['extra'];
+        }
+        if (count($message) === 1) {
+            $message = reset($message);
+        }
+
+        return array(
+            $record['channel'],
+            $message,
+            $backtrace,
+            $this->logLevels[$record['level']],
+        );
+    }
+
+    public function formatBatch(array $records)
+    {
+        $formatted = array();
+
+        foreach ($records as $record) {
+            $formatted[] = $this->format($record);
+        }
+
+        return $formatted;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/ElasticaFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/ElasticaFormatter.php
new file mode 100644
index 0000000..4c556cf
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/ElasticaFormatter.php
@@ -0,0 +1,89 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+use Elastica\Document;
+
+/**
+ * Format a log message into an Elastica Document
+ *
+ * @author Jelle Vink <jelle.vink@gmail.com>
+ */
+class ElasticaFormatter extends NormalizerFormatter
+{
+    /**
+     * @var string Elastic search index name
+     */
+    protected $index;
+
+    /**
+     * @var string Elastic search document type
+     */
+    protected $type;
+
+    /**
+     * @param string $index Elastic Search index name
+     * @param string $type  Elastic Search document type
+     */
+    public function __construct($index, $type)
+    {
+        // elasticsearch requires a ISO 8601 format date with optional millisecond precision.
+        parent::__construct('Y-m-d\TH:i:s.uP');
+
+        $this->index = $index;
+        $this->type = $type;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        $record = parent::format($record);
+
+        return $this->getDocument($record);
+    }
+
+    /**
+     * Getter index
+     * @return string
+     */
+    public function getIndex()
+    {
+        return $this->index;
+    }
+
+    /**
+     * Getter type
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->type;
+    }
+
+    /**
+     * Convert a log message into an Elastica Document
+     *
+     * @param  array    $record Log message
+     * @return Document
+     */
+    protected function getDocument($record)
+    {
+        $document = new Document();
+        $document->setData($record);
+        $document->setType($this->type);
+        $document->setIndex($this->index);
+
+        return $document;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/FlowdockFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/FlowdockFormatter.php
new file mode 100644
index 0000000..5094af3
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/FlowdockFormatter.php
@@ -0,0 +1,116 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+/**
+ * formats the record to be used in the FlowdockHandler
+ *
+ * @author Dominik Liebler <liebler.dominik@gmail.com>
+ */
+class FlowdockFormatter implements FormatterInterface
+{
+    /**
+     * @var string
+     */
+    private $source;
+
+    /**
+     * @var string
+     */
+    private $sourceEmail;
+
+    /**
+     * @param string $source
+     * @param string $sourceEmail
+     */
+    public function __construct($source, $sourceEmail)
+    {
+        $this->source = $source;
+        $this->sourceEmail = $sourceEmail;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        $tags = array(
+            '#logs',
+            '#' . strtolower($record['level_name']),
+            '#' . $record['channel'],
+        );
+
+        foreach ($record['extra'] as $value) {
+            $tags[] = '#' . $value;
+        }
+
+        $subject = sprintf(
+            'in %s: %s - %s',
+            $this->source,
+            $record['level_name'],
+            $this->getShortMessage($record['message'])
+        );
+
+        $record['flowdock'] = array(
+            'source' => $this->source,
+            'from_address' => $this->sourceEmail,
+            'subject' => $subject,
+            'content' => $record['message'],
+            'tags' => $tags,
+            'project' => $this->source,
+        );
+
+        return $record;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function formatBatch(array $records)
+    {
+        $formatted = array();
+
+        foreach ($records as $record) {
+            $formatted[] = $this->format($record);
+        }
+
+        return $formatted;
+    }
+
+    /**
+     * @param string $message
+     *
+     * @return string
+     */
+    public function getShortMessage($message)
+    {
+        static $hasMbString;
+
+        if (null === $hasMbString) {
+            $hasMbString = function_exists('mb_strlen');
+        }
+
+        $maxLength = 45;
+
+        if ($hasMbString) {
+            if (mb_strlen($message, 'UTF-8') > $maxLength) {
+                $message = mb_substr($message, 0, $maxLength - 4, 'UTF-8') . ' ...';
+            }
+        } else {
+            if (strlen($message) > $maxLength) {
+                $message = substr($message, 0, $maxLength - 4) . ' ...';
+            }
+        }
+
+        return $message;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/FluentdFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/FluentdFormatter.php
new file mode 100644
index 0000000..02632bb
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/FluentdFormatter.php
@@ -0,0 +1,85 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+/**
+ * Class FluentdFormatter
+ *
+ * Serializes a log message to Fluentd unix socket protocol
+ *
+ * Fluentd config:
+ *
+ * <source>
+ *  type unix
+ *  path /var/run/td-agent/td-agent.sock
+ * </source>
+ *
+ * Monolog setup:
+ *
+ * $logger = new Monolog\Logger('fluent.tag');
+ * $fluentHandler = new Monolog\Handler\SocketHandler('unix:///var/run/td-agent/td-agent.sock');
+ * $fluentHandler->setFormatter(new Monolog\Formatter\FluentdFormatter());
+ * $logger->pushHandler($fluentHandler);
+ *
+ * @author Andrius Putna <fordnox@gmail.com>
+ */
+class FluentdFormatter implements FormatterInterface
+{
+    /**
+     * @var bool $levelTag should message level be a part of the fluentd tag
+     */
+    protected $levelTag = false;
+
+    public function __construct($levelTag = false)
+    {
+        if (!function_exists('json_encode')) {
+            throw new \RuntimeException('PHP\'s json extension is required to use Monolog\'s FluentdUnixFormatter');
+        }
+
+        $this->levelTag = (bool) $levelTag;
+    }
+
+    public function isUsingLevelsInTag()
+    {
+        return $this->levelTag;
+    }
+
+    public function format(array $record)
+    {
+        $tag = $record['channel'];
+        if ($this->levelTag) {
+            $tag .= '.' . strtolower($record['level_name']);
+        }
+
+        $message = array(
+            'message' => $record['message'],
+            'extra' => $record['extra'],
+        );
+
+        if (!$this->levelTag) {
+            $message['level'] = $record['level'];
+            $message['level_name'] = $record['level_name'];
+        }
+
+        return json_encode(array($tag, $record['datetime']->getTimestamp(), $message));
+    }
+
+    public function formatBatch(array $records)
+    {
+        $message = '';
+        foreach ($records as $record) {
+            $message .= $this->format($record);
+        }
+
+        return $message;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/FormatterInterface.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/FormatterInterface.php
new file mode 100644
index 0000000..b5de751
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/FormatterInterface.php
@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+/**
+ * Interface for formatters
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+interface FormatterInterface
+{
+    /**
+     * Formats a log record.
+     *
+     * @param  array $record A record to format
+     * @return mixed The formatted record
+     */
+    public function format(array $record);
+
+    /**
+     * Formats a set of log records.
+     *
+     * @param  array $records A set of records to format
+     * @return mixed The formatted set of records
+     */
+    public function formatBatch(array $records);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/GelfMessageFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/GelfMessageFormatter.php
new file mode 100644
index 0000000..2c1b0e8
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/GelfMessageFormatter.php
@@ -0,0 +1,138 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+use Monolog\Logger;
+use Gelf\Message;
+
+/**
+ * Serializes a log message to GELF
+ * @see http://www.graylog2.org/about/gelf
+ *
+ * @author Matt Lehner <mlehner@gmail.com>
+ */
+class GelfMessageFormatter extends NormalizerFormatter
+{
+    const DEFAULT_MAX_LENGTH = 32766;
+
+    /**
+     * @var string the name of the system for the Gelf log message
+     */
+    protected $systemName;
+
+    /**
+     * @var string a prefix for 'extra' fields from the Monolog record (optional)
+     */
+    protected $extraPrefix;
+
+    /**
+     * @var string a prefix for 'context' fields from the Monolog record (optional)
+     */
+    protected $contextPrefix;
+
+    /**
+     * @var int max length per field
+     */
+    protected $maxLength;
+
+    /**
+     * Translates Monolog log levels to Graylog2 log priorities.
+     */
+    private $logLevels = array(
+        Logger::DEBUG     => 7,
+        Logger::INFO      => 6,
+        Logger::NOTICE    => 5,
+        Logger::WARNING   => 4,
+        Logger::ERROR     => 3,
+        Logger::CRITICAL  => 2,
+        Logger::ALERT     => 1,
+        Logger::EMERGENCY => 0,
+    );
+
+    public function __construct($systemName = null, $extraPrefix = null, $contextPrefix = 'ctxt_', $maxLength = null)
+    {
+        parent::__construct('U.u');
+
+        $this->systemName = $systemName ?: gethostname();
+
+        $this->extraPrefix = $extraPrefix;
+        $this->contextPrefix = $contextPrefix;
+        $this->maxLength = is_null($maxLength) ? self::DEFAULT_MAX_LENGTH : $maxLength;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        $record = parent::format($record);
+
+        if (!isset($record['datetime'], $record['message'], $record['level'])) {
+            throw new \InvalidArgumentException('The record should at least contain datetime, message and level keys, '.var_export($record, true).' given');
+        }
+
+        $message = new Message();
+        $message
+            ->setTimestamp($record['datetime'])
+            ->setShortMessage((string) $record['message'])
+            ->setHost($this->systemName)
+            ->setLevel($this->logLevels[$record['level']]);
+
+        // message length + system name length + 200 for padding / metadata 
+        $len = 200 + strlen((string) $record['message']) + strlen($this->systemName);
+
+        if ($len > $this->maxLength) {
+            $message->setShortMessage(substr($record['message'], 0, $this->maxLength));
+        }
+
+        if (isset($record['channel'])) {
+            $message->setFacility($record['channel']);
+        }
+        if (isset($record['extra']['line'])) {
+            $message->setLine($record['extra']['line']);
+            unset($record['extra']['line']);
+        }
+        if (isset($record['extra']['file'])) {
+            $message->setFile($record['extra']['file']);
+            unset($record['extra']['file']);
+        }
+
+        foreach ($record['extra'] as $key => $val) {
+            $val = is_scalar($val) || null === $val ? $val : $this->toJson($val);
+            $len = strlen($this->extraPrefix . $key . $val);
+            if ($len > $this->maxLength) {
+                $message->setAdditional($this->extraPrefix . $key, substr($val, 0, $this->maxLength));
+                break;
+            }
+            $message->setAdditional($this->extraPrefix . $key, $val);
+        }
+
+        foreach ($record['context'] as $key => $val) {
+            $val = is_scalar($val) || null === $val ? $val : $this->toJson($val);
+            $len = strlen($this->contextPrefix . $key . $val);
+            if ($len > $this->maxLength) {
+                $message->setAdditional($this->contextPrefix . $key, substr($val, 0, $this->maxLength));
+                break;
+            }
+            $message->setAdditional($this->contextPrefix . $key, $val);
+        }
+
+        if (null === $message->getFile() && isset($record['context']['exception']['file'])) {
+            if (preg_match("/^(.+):([0-9]+)$/", $record['context']['exception']['file'], $matches)) {
+                $message->setFile($matches[1]);
+                $message->setLine($matches[2]);
+            }
+        }
+
+        return $message;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/HtmlFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/HtmlFormatter.php
new file mode 100644
index 0000000..3eec95f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/HtmlFormatter.php
@@ -0,0 +1,141 @@
+<?php
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+use Monolog\Logger;
+
+/**
+ * Formats incoming records into an HTML table
+ *
+ * This is especially useful for html email logging
+ *
+ * @author Tiago Brito <tlfbrito@gmail.com>
+ */
+class HtmlFormatter extends NormalizerFormatter
+{
+    /**
+     * Translates Monolog log levels to html color priorities.
+     */
+    protected $logLevels = array(
+        Logger::DEBUG     => '#cccccc',
+        Logger::INFO      => '#468847',
+        Logger::NOTICE    => '#3a87ad',
+        Logger::WARNING   => '#c09853',
+        Logger::ERROR     => '#f0ad4e',
+        Logger::CRITICAL  => '#FF7708',
+        Logger::ALERT     => '#C12A19',
+        Logger::EMERGENCY => '#000000',
+    );
+
+    /**
+     * @param string $dateFormat The format of the timestamp: one supported by DateTime::format
+     */
+    public function __construct($dateFormat = null)
+    {
+        parent::__construct($dateFormat);
+    }
+
+    /**
+     * Creates an HTML table row
+     *
+     * @param  string $th       Row header content
+     * @param  string $td       Row standard cell content
+     * @param  bool   $escapeTd false if td content must not be html escaped
+     * @return string
+     */
+    protected function addRow($th, $td = ' ', $escapeTd = true)
+    {
+        $th = htmlspecialchars($th, ENT_NOQUOTES, 'UTF-8');
+        if ($escapeTd) {
+            $td = '<pre>'.htmlspecialchars($td, ENT_NOQUOTES, 'UTF-8').'</pre>';
+        }
+
+        return "<tr style=\"padding: 4px;spacing: 0;text-align: left;\">\n<th style=\"background: #cccccc\" width=\"100px\">$th:</th>\n<td style=\"padding: 4px;spacing: 0;text-align: left;background: #eeeeee\">".$td."</td>\n</tr>";
+    }
+
+    /**
+     * Create a HTML h1 tag
+     *
+     * @param  string $title Text to be in the h1
+     * @param  int    $level Error level
+     * @return string
+     */
+    protected function addTitle($title, $level)
+    {
+        $title = htmlspecialchars($title, ENT_NOQUOTES, 'UTF-8');
+
+        return '<h1 style="background: '.$this->logLevels[$level].';color: #ffffff;padding: 5px;" class="monolog-output">'.$title.'</h1>';
+    }
+
+    /**
+     * Formats a log record.
+     *
+     * @param  array $record A record to format
+     * @return mixed The formatted record
+     */
+    public function format(array $record)
+    {
+        $output = $this->addTitle($record['level_name'], $record['level']);
+        $output .= '<table cellspacing="1" width="100%" class="monolog-output">';
+
+        $output .= $this->addRow('Message', (string) $record['message']);
+        $output .= $this->addRow('Time', $record['datetime']->format($this->dateFormat));
+        $output .= $this->addRow('Channel', $record['channel']);
+        if ($record['context']) {
+            $embeddedTable = '<table cellspacing="1" width="100%">';
+            foreach ($record['context'] as $key => $value) {
+                $embeddedTable .= $this->addRow($key, $this->convertToString($value));
+            }
+            $embeddedTable .= '</table>';
+            $output .= $this->addRow('Context', $embeddedTable, false);
+        }
+        if ($record['extra']) {
+            $embeddedTable = '<table cellspacing="1" width="100%">';
+            foreach ($record['extra'] as $key => $value) {
+                $embeddedTable .= $this->addRow($key, $this->convertToString($value));
+            }
+            $embeddedTable .= '</table>';
+            $output .= $this->addRow('Extra', $embeddedTable, false);
+        }
+
+        return $output.'</table>';
+    }
+
+    /**
+     * Formats a set of log records.
+     *
+     * @param  array $records A set of records to format
+     * @return mixed The formatted set of records
+     */
+    public function formatBatch(array $records)
+    {
+        $message = '';
+        foreach ($records as $record) {
+            $message .= $this->format($record);
+        }
+
+        return $message;
+    }
+
+    protected function convertToString($data)
+    {
+        if (null === $data || is_scalar($data)) {
+            return (string) $data;
+        }
+
+        $data = $this->normalize($data);
+        if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
+            return json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
+        }
+
+        return str_replace('\\/', '/', json_encode($data));
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/JsonFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/JsonFormatter.php
new file mode 100644
index 0000000..0782f14
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/JsonFormatter.php
@@ -0,0 +1,208 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+use Exception;
+use Throwable;
+
+/**
+ * Encodes whatever record data is passed to it as json
+ *
+ * This can be useful to log to databases or remote APIs
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class JsonFormatter extends NormalizerFormatter
+{
+    const BATCH_MODE_JSON = 1;
+    const BATCH_MODE_NEWLINES = 2;
+
+    protected $batchMode;
+    protected $appendNewline;
+
+    /**
+     * @var bool
+     */
+    protected $includeStacktraces = false;
+
+    /**
+     * @param int $batchMode
+     * @param bool $appendNewline
+     */
+    public function __construct($batchMode = self::BATCH_MODE_JSON, $appendNewline = true)
+    {
+        $this->batchMode = $batchMode;
+        $this->appendNewline = $appendNewline;
+    }
+
+    /**
+     * The batch mode option configures the formatting style for
+     * multiple records. By default, multiple records will be
+     * formatted as a JSON-encoded array. However, for
+     * compatibility with some API endpoints, alternative styles
+     * are available.
+     *
+     * @return int
+     */
+    public function getBatchMode()
+    {
+        return $this->batchMode;
+    }
+
+    /**
+     * True if newlines are appended to every formatted record
+     *
+     * @return bool
+     */
+    public function isAppendingNewlines()
+    {
+        return $this->appendNewline;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        return $this->toJson($this->normalize($record), true) . ($this->appendNewline ? "\n" : '');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function formatBatch(array $records)
+    {
+        switch ($this->batchMode) {
+            case static::BATCH_MODE_NEWLINES:
+                return $this->formatBatchNewlines($records);
+
+            case static::BATCH_MODE_JSON:
+            default:
+                return $this->formatBatchJson($records);
+        }
+    }
+
+    /**
+     * @param bool $include
+     */
+    public function includeStacktraces($include = true)
+    {
+        $this->includeStacktraces = $include;
+    }
+
+    /**
+     * Return a JSON-encoded array of records.
+     *
+     * @param  array  $records
+     * @return string
+     */
+    protected function formatBatchJson(array $records)
+    {
+        return $this->toJson($this->normalize($records), true);
+    }
+
+    /**
+     * Use new lines to separate records instead of a
+     * JSON-encoded array.
+     *
+     * @param  array  $records
+     * @return string
+     */
+    protected function formatBatchNewlines(array $records)
+    {
+        $instance = $this;
+
+        $oldNewline = $this->appendNewline;
+        $this->appendNewline = false;
+        array_walk($records, function (&$value, $key) use ($instance) {
+            $value = $instance->format($value);
+        });
+        $this->appendNewline = $oldNewline;
+
+        return implode("\n", $records);
+    }
+
+    /**
+     * Normalizes given $data.
+     *
+     * @param mixed $data
+     *
+     * @return mixed
+     */
+    protected function normalize($data)
+    {
+        if (is_array($data) || $data instanceof \Traversable) {
+            $normalized = array();
+
+            $count = 1;
+            foreach ($data as $key => $value) {
+                if ($count++ >= 1000) {
+                    $normalized['...'] = 'Over 1000 items, aborting normalization';
+                    break;
+                }
+                $normalized[$key] = $this->normalize($value);
+            }
+
+            return $normalized;
+        }
+
+        if ($data instanceof Exception || $data instanceof Throwable) {
+            return $this->normalizeException($data);
+        }
+
+        return $data;
+    }
+
+    /**
+     * Normalizes given exception with or without its own stack trace based on
+     * `includeStacktraces` property.
+     *
+     * @param Exception|Throwable $e
+     *
+     * @return array
+     */
+    protected function normalizeException($e)
+    {
+        // TODO 2.0 only check for Throwable
+        if (!$e instanceof Exception && !$e instanceof Throwable) {
+            throw new \InvalidArgumentException('Exception/Throwable expected, got '.gettype($e).' / '.get_class($e));
+        }
+
+        $data = array(
+            'class' => get_class($e),
+            'message' => $e->getMessage(),
+            'code' => $e->getCode(),
+            'file' => $e->getFile().':'.$e->getLine(),
+        );
+
+        if ($this->includeStacktraces) {
+            $trace = $e->getTrace();
+            foreach ($trace as $frame) {
+                if (isset($frame['file'])) {
+                    $data['trace'][] = $frame['file'].':'.$frame['line'];
+                } elseif (isset($frame['function']) && $frame['function'] === '{closure}') {
+                    // We should again normalize the frames, because it might contain invalid items
+                    $data['trace'][] = $frame['function'];
+                } else {
+                    // We should again normalize the frames, because it might contain invalid items
+                    $data['trace'][] = $this->normalize($frame);
+                }
+            }
+        }
+
+        if ($previous = $e->getPrevious()) {
+            $data['previous'] = $this->normalizeException($previous);
+        }
+
+        return $data;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/LineFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/LineFormatter.php
new file mode 100644
index 0000000..d3e209e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/LineFormatter.php
@@ -0,0 +1,179 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+/**
+ * Formats incoming records into a one-line string
+ *
+ * This is especially useful for logging to files
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ * @author Christophe Coevoet <stof@notk.org>
+ */
+class LineFormatter extends NormalizerFormatter
+{
+    const SIMPLE_FORMAT = "[%datetime%] %channel%.%level_name%: %message% %context% %extra%\n";
+
+    protected $format;
+    protected $allowInlineLineBreaks;
+    protected $ignoreEmptyContextAndExtra;
+    protected $includeStacktraces;
+
+    /**
+     * @param string $format                     The format of the message
+     * @param string $dateFormat                 The format of the timestamp: one supported by DateTime::format
+     * @param bool   $allowInlineLineBreaks      Whether to allow inline line breaks in log entries
+     * @param bool   $ignoreEmptyContextAndExtra
+     */
+    public function __construct($format = null, $dateFormat = null, $allowInlineLineBreaks = false, $ignoreEmptyContextAndExtra = false)
+    {
+        $this->format = $format ?: static::SIMPLE_FORMAT;
+        $this->allowInlineLineBreaks = $allowInlineLineBreaks;
+        $this->ignoreEmptyContextAndExtra = $ignoreEmptyContextAndExtra;
+        parent::__construct($dateFormat);
+    }
+
+    public function includeStacktraces($include = true)
+    {
+        $this->includeStacktraces = $include;
+        if ($this->includeStacktraces) {
+            $this->allowInlineLineBreaks = true;
+        }
+    }
+
+    public function allowInlineLineBreaks($allow = true)
+    {
+        $this->allowInlineLineBreaks = $allow;
+    }
+
+    public function ignoreEmptyContextAndExtra($ignore = true)
+    {
+        $this->ignoreEmptyContextAndExtra = $ignore;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        $vars = parent::format($record);
+
+        $output = $this->format;
+
+        foreach ($vars['extra'] as $var => $val) {
+            if (false !== strpos($output, '%extra.'.$var.'%')) {
+                $output = str_replace('%extra.'.$var.'%', $this->stringify($val), $output);
+                unset($vars['extra'][$var]);
+            }
+        }
+
+
+        foreach ($vars['context'] as $var => $val) {
+            if (false !== strpos($output, '%context.'.$var.'%')) {
+                $output = str_replace('%context.'.$var.'%', $this->stringify($val), $output);
+                unset($vars['context'][$var]);
+            }
+        }
+
+        if ($this->ignoreEmptyContextAndExtra) {
+            if (empty($vars['context'])) {
+                unset($vars['context']);
+                $output = str_replace('%context%', '', $output);
+            }
+
+            if (empty($vars['extra'])) {
+                unset($vars['extra']);
+                $output = str_replace('%extra%', '', $output);
+            }
+        }
+
+        foreach ($vars as $var => $val) {
+            if (false !== strpos($output, '%'.$var.'%')) {
+                $output = str_replace('%'.$var.'%', $this->stringify($val), $output);
+            }
+        }
+
+        // remove leftover %extra.xxx% and %context.xxx% if any
+        if (false !== strpos($output, '%')) {
+            $output = preg_replace('/%(?:extra|context)\..+?%/', '', $output);
+        }
+
+        return $output;
+    }
+
+    public function formatBatch(array $records)
+    {
+        $message = '';
+        foreach ($records as $record) {
+            $message .= $this->format($record);
+        }
+
+        return $message;
+    }
+
+    public function stringify($value)
+    {
+        return $this->replaceNewlines($this->convertToString($value));
+    }
+
+    protected function normalizeException($e)
+    {
+        // TODO 2.0 only check for Throwable
+        if (!$e instanceof \Exception && !$e instanceof \Throwable) {
+            throw new \InvalidArgumentException('Exception/Throwable expected, got '.gettype($e).' / '.get_class($e));
+        }
+
+        $previousText = '';
+        if ($previous = $e->getPrevious()) {
+            do {
+                $previousText .= ', '.get_class($previous).'(code: '.$previous->getCode().'): '.$previous->getMessage().' at '.$previous->getFile().':'.$previous->getLine();
+            } while ($previous = $previous->getPrevious());
+        }
+
+        $str = '[object] ('.get_class($e).'(code: '.$e->getCode().'): '.$e->getMessage().' at '.$e->getFile().':'.$e->getLine().$previousText.')';
+        if ($this->includeStacktraces) {
+            $str .= "\n[stacktrace]\n".$e->getTraceAsString()."\n";
+        }
+
+        return $str;
+    }
+
+    protected function convertToString($data)
+    {
+        if (null === $data || is_bool($data)) {
+            return var_export($data, true);
+        }
+
+        if (is_scalar($data)) {
+            return (string) $data;
+        }
+
+        if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
+            return $this->toJson($data, true);
+        }
+
+        return str_replace('\\/', '/', @json_encode($data));
+    }
+
+    protected function replaceNewlines($str)
+    {
+        if ($this->allowInlineLineBreaks) {
+            if (0 === strpos($str, '{')) {
+                return str_replace(array('\r', '\n'), array("\r", "\n"), $str);
+            }
+
+            return $str;
+        }
+
+        return str_replace(array("\r\n", "\r", "\n"), ' ', $str);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/LogglyFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/LogglyFormatter.php
new file mode 100644
index 0000000..401859b
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/LogglyFormatter.php
@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+/**
+ * Encodes message information into JSON in a format compatible with Loggly.
+ *
+ * @author Adam Pancutt <adam@pancutt.com>
+ */
+class LogglyFormatter extends JsonFormatter
+{
+    /**
+     * Overrides the default batch mode to new lines for compatibility with the
+     * Loggly bulk API.
+     *
+     * @param int $batchMode
+     */
+    public function __construct($batchMode = self::BATCH_MODE_NEWLINES, $appendNewline = false)
+    {
+        parent::__construct($batchMode, $appendNewline);
+    }
+
+    /**
+     * Appends the 'timestamp' parameter for indexing by Loggly.
+     *
+     * @see https://www.loggly.com/docs/automated-parsing/#json
+     * @see \Monolog\Formatter\JsonFormatter::format()
+     */
+    public function format(array $record)
+    {
+        if (isset($record["datetime"]) && ($record["datetime"] instanceof \DateTime)) {
+            $record["timestamp"] = $record["datetime"]->format("Y-m-d\TH:i:s.uO");
+            // TODO 2.0 unset the 'datetime' parameter, retained for BC
+        }
+
+        return parent::format($record);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/LogstashFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/LogstashFormatter.php
new file mode 100644
index 0000000..8f83bec
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/LogstashFormatter.php
@@ -0,0 +1,166 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+/**
+ * Serializes a log message to Logstash Event Format
+ *
+ * @see http://logstash.net/
+ * @see https://github.com/logstash/logstash/blob/master/lib/logstash/event.rb
+ *
+ * @author Tim Mower <timothy.mower@gmail.com>
+ */
+class LogstashFormatter extends NormalizerFormatter
+{
+    const V0 = 0;
+    const V1 = 1;
+
+    /**
+     * @var string the name of the system for the Logstash log message, used to fill the @source field
+     */
+    protected $systemName;
+
+    /**
+     * @var string an application name for the Logstash log message, used to fill the @type field
+     */
+    protected $applicationName;
+
+    /**
+     * @var string a prefix for 'extra' fields from the Monolog record (optional)
+     */
+    protected $extraPrefix;
+
+    /**
+     * @var string a prefix for 'context' fields from the Monolog record (optional)
+     */
+    protected $contextPrefix;
+
+    /**
+     * @var int logstash format version to use
+     */
+    protected $version;
+
+    /**
+     * @param string $applicationName the application that sends the data, used as the "type" field of logstash
+     * @param string $systemName      the system/machine name, used as the "source" field of logstash, defaults to the hostname of the machine
+     * @param string $extraPrefix     prefix for extra keys inside logstash "fields"
+     * @param string $contextPrefix   prefix for context keys inside logstash "fields", defaults to ctxt_
+     * @param int    $version         the logstash format version to use, defaults to 0
+     */
+    public function __construct($applicationName, $systemName = null, $extraPrefix = null, $contextPrefix = 'ctxt_', $version = self::V0)
+    {
+        // logstash requires a ISO 8601 format date with optional millisecond precision.
+        parent::__construct('Y-m-d\TH:i:s.uP');
+
+        $this->systemName = $systemName ?: gethostname();
+        $this->applicationName = $applicationName;
+        $this->extraPrefix = $extraPrefix;
+        $this->contextPrefix = $contextPrefix;
+        $this->version = $version;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        $record = parent::format($record);
+
+        if ($this->version === self::V1) {
+            $message = $this->formatV1($record);
+        } else {
+            $message = $this->formatV0($record);
+        }
+
+        return $this->toJson($message) . "\n";
+    }
+
+    protected function formatV0(array $record)
+    {
+        if (empty($record['datetime'])) {
+            $record['datetime'] = gmdate('c');
+        }
+        $message = array(
+            '@timestamp' => $record['datetime'],
+            '@source' => $this->systemName,
+            '@fields' => array(),
+        );
+        if (isset($record['message'])) {
+            $message['@message'] = $record['message'];
+        }
+        if (isset($record['channel'])) {
+            $message['@tags'] = array($record['channel']);
+            $message['@fields']['channel'] = $record['channel'];
+        }
+        if (isset($record['level'])) {
+            $message['@fields']['level'] = $record['level'];
+        }
+        if ($this->applicationName) {
+            $message['@type'] = $this->applicationName;
+        }
+        if (isset($record['extra']['server'])) {
+            $message['@source_host'] = $record['extra']['server'];
+        }
+        if (isset($record['extra']['url'])) {
+            $message['@source_path'] = $record['extra']['url'];
+        }
+        if (!empty($record['extra'])) {
+            foreach ($record['extra'] as $key => $val) {
+                $message['@fields'][$this->extraPrefix . $key] = $val;
+            }
+        }
+        if (!empty($record['context'])) {
+            foreach ($record['context'] as $key => $val) {
+                $message['@fields'][$this->contextPrefix . $key] = $val;
+            }
+        }
+
+        return $message;
+    }
+
+    protected function formatV1(array $record)
+    {
+        if (empty($record['datetime'])) {
+            $record['datetime'] = gmdate('c');
+        }
+        $message = array(
+            '@timestamp' => $record['datetime'],
+            '@version' => 1,
+            'host' => $this->systemName,
+        );
+        if (isset($record['message'])) {
+            $message['message'] = $record['message'];
+        }
+        if (isset($record['channel'])) {
+            $message['type'] = $record['channel'];
+            $message['channel'] = $record['channel'];
+        }
+        if (isset($record['level_name'])) {
+            $message['level'] = $record['level_name'];
+        }
+        if ($this->applicationName) {
+            $message['type'] = $this->applicationName;
+        }
+        if (!empty($record['extra'])) {
+            foreach ($record['extra'] as $key => $val) {
+                $message[$this->extraPrefix . $key] = $val;
+            }
+        }
+        if (!empty($record['context'])) {
+            foreach ($record['context'] as $key => $val) {
+                $message[$this->contextPrefix . $key] = $val;
+            }
+        }
+
+        return $message;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/MongoDBFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/MongoDBFormatter.php
new file mode 100644
index 0000000..eb067bb
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/MongoDBFormatter.php
@@ -0,0 +1,105 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+/**
+ * Formats a record for use with the MongoDBHandler.
+ *
+ * @author Florian Plattner <me@florianplattner.de>
+ */
+class MongoDBFormatter implements FormatterInterface
+{
+    private $exceptionTraceAsString;
+    private $maxNestingLevel;
+
+    /**
+     * @param int  $maxNestingLevel        0 means infinite nesting, the $record itself is level 1, $record['context'] is 2
+     * @param bool $exceptionTraceAsString set to false to log exception traces as a sub documents instead of strings
+     */
+    public function __construct($maxNestingLevel = 3, $exceptionTraceAsString = true)
+    {
+        $this->maxNestingLevel = max($maxNestingLevel, 0);
+        $this->exceptionTraceAsString = (bool) $exceptionTraceAsString;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function format(array $record)
+    {
+        return $this->formatArray($record);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function formatBatch(array $records)
+    {
+        foreach ($records as $key => $record) {
+            $records[$key] = $this->format($record);
+        }
+
+        return $records;
+    }
+
+    protected function formatArray(array $record, $nestingLevel = 0)
+    {
+        if ($this->maxNestingLevel == 0 || $nestingLevel <= $this->maxNestingLevel) {
+            foreach ($record as $name => $value) {
+                if ($value instanceof \DateTime) {
+                    $record[$name] = $this->formatDate($value, $nestingLevel + 1);
+                } elseif ($value instanceof \Exception) {
+                    $record[$name] = $this->formatException($value, $nestingLevel + 1);
+                } elseif (is_array($value)) {
+                    $record[$name] = $this->formatArray($value, $nestingLevel + 1);
+                } elseif (is_object($value)) {
+                    $record[$name] = $this->formatObject($value, $nestingLevel + 1);
+                }
+            }
+        } else {
+            $record = '[...]';
+        }
+
+        return $record;
+    }
+
+    protected function formatObject($value, $nestingLevel)
+    {
+        $objectVars = get_object_vars($value);
+        $objectVars['class'] = get_class($value);
+
+        return $this->formatArray($objectVars, $nestingLevel);
+    }
+
+    protected function formatException(\Exception $exception, $nestingLevel)
+    {
+        $formattedException = array(
+            'class' => get_class($exception),
+            'message' => $exception->getMessage(),
+            'code' => $exception->getCode(),
+            'file' => $exception->getFile() . ':' . $exception->getLine(),
+        );
+
+        if ($this->exceptionTraceAsString === true) {
+            $formattedException['trace'] = $exception->getTraceAsString();
+        } else {
+            $formattedException['trace'] = $exception->getTrace();
+        }
+
+        return $this->formatArray($formattedException, $nestingLevel);
+    }
+
+    protected function formatDate(\DateTime $value, $nestingLevel)
+    {
+        return new \MongoDate($value->getTimestamp());
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/NormalizerFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/NormalizerFormatter.php
new file mode 100644
index 0000000..d441488
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/NormalizerFormatter.php
@@ -0,0 +1,297 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+use Exception;
+
+/**
+ * Normalizes incoming records to remove objects/resources so it's easier to dump to various targets
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class NormalizerFormatter implements FormatterInterface
+{
+    const SIMPLE_DATE = "Y-m-d H:i:s";
+
+    protected $dateFormat;
+
+    /**
+     * @param string $dateFormat The format of the timestamp: one supported by DateTime::format
+     */
+    public function __construct($dateFormat = null)
+    {
+        $this->dateFormat = $dateFormat ?: static::SIMPLE_DATE;
+        if (!function_exists('json_encode')) {
+            throw new \RuntimeException('PHP\'s json extension is required to use Monolog\'s NormalizerFormatter');
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        return $this->normalize($record);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function formatBatch(array $records)
+    {
+        foreach ($records as $key => $record) {
+            $records[$key] = $this->format($record);
+        }
+
+        return $records;
+    }
+
+    protected function normalize($data)
+    {
+        if (null === $data || is_scalar($data)) {
+            if (is_float($data)) {
+                if (is_infinite($data)) {
+                    return ($data > 0 ? '' : '-') . 'INF';
+                }
+                if (is_nan($data)) {
+                    return 'NaN';
+                }
+            }
+
+            return $data;
+        }
+
+        if (is_array($data)) {
+            $normalized = array();
+
+            $count = 1;
+            foreach ($data as $key => $value) {
+                if ($count++ >= 1000) {
+                    $normalized['...'] = 'Over 1000 items ('.count($data).' total), aborting normalization';
+                    break;
+                }
+                $normalized[$key] = $this->normalize($value);
+            }
+
+            return $normalized;
+        }
+
+        if ($data instanceof \DateTime) {
+            return $data->format($this->dateFormat);
+        }
+
+        if (is_object($data)) {
+            // TODO 2.0 only check for Throwable
+            if ($data instanceof Exception || (PHP_VERSION_ID > 70000 && $data instanceof \Throwable)) {
+                return $this->normalizeException($data);
+            }
+
+            // non-serializable objects that implement __toString stringified
+            if (method_exists($data, '__toString') && !$data instanceof \JsonSerializable) {
+                $value = $data->__toString();
+            } else {
+                // the rest is json-serialized in some way
+                $value = $this->toJson($data, true);
+            }
+
+            return sprintf("[object] (%s: %s)", get_class($data), $value);
+        }
+
+        if (is_resource($data)) {
+            return sprintf('[resource] (%s)', get_resource_type($data));
+        }
+
+        return '[unknown('.gettype($data).')]';
+    }
+
+    protected function normalizeException($e)
+    {
+        // TODO 2.0 only check for Throwable
+        if (!$e instanceof Exception && !$e instanceof \Throwable) {
+            throw new \InvalidArgumentException('Exception/Throwable expected, got '.gettype($e).' / '.get_class($e));
+        }
+
+        $data = array(
+            'class' => get_class($e),
+            'message' => $e->getMessage(),
+            'code' => $e->getCode(),
+            'file' => $e->getFile().':'.$e->getLine(),
+        );
+
+        if ($e instanceof \SoapFault) {
+            if (isset($e->faultcode)) {
+                $data['faultcode'] = $e->faultcode;
+            }
+
+            if (isset($e->faultactor)) {
+                $data['faultactor'] = $e->faultactor;
+            }
+
+            if (isset($e->detail)) {
+                $data['detail'] = $e->detail;
+            }
+        }
+
+        $trace = $e->getTrace();
+        foreach ($trace as $frame) {
+            if (isset($frame['file'])) {
+                $data['trace'][] = $frame['file'].':'.$frame['line'];
+            } elseif (isset($frame['function']) && $frame['function'] === '{closure}') {
+                // We should again normalize the frames, because it might contain invalid items
+                $data['trace'][] = $frame['function'];
+            } else {
+                // We should again normalize the frames, because it might contain invalid items
+                $data['trace'][] = $this->toJson($this->normalize($frame), true);
+            }
+        }
+
+        if ($previous = $e->getPrevious()) {
+            $data['previous'] = $this->normalizeException($previous);
+        }
+
+        return $data;
+    }
+
+    /**
+     * Return the JSON representation of a value
+     *
+     * @param  mixed             $data
+     * @param  bool              $ignoreErrors
+     * @throws \RuntimeException if encoding fails and errors are not ignored
+     * @return string
+     */
+    protected function toJson($data, $ignoreErrors = false)
+    {
+        // suppress json_encode errors since it's twitchy with some inputs
+        if ($ignoreErrors) {
+            return @$this->jsonEncode($data);
+        }
+
+        $json = $this->jsonEncode($data);
+
+        if ($json === false) {
+            $json = $this->handleJsonError(json_last_error(), $data);
+        }
+
+        return $json;
+    }
+
+    /**
+     * @param  mixed  $data
+     * @return string JSON encoded data or null on failure
+     */
+    private function jsonEncode($data)
+    {
+        if (version_compare(PHP_VERSION, '5.4.0', '>=')) {
+            return json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
+        }
+
+        return json_encode($data);
+    }
+
+    /**
+     * Handle a json_encode failure.
+     *
+     * If the failure is due to invalid string encoding, try to clean the
+     * input and encode again. If the second encoding attempt fails, the
+     * inital error is not encoding related or the input can't be cleaned then
+     * raise a descriptive exception.
+     *
+     * @param  int               $code return code of json_last_error function
+     * @param  mixed             $data data that was meant to be encoded
+     * @throws \RuntimeException if failure can't be corrected
+     * @return string            JSON encoded data after error correction
+     */
+    private function handleJsonError($code, $data)
+    {
+        if ($code !== JSON_ERROR_UTF8) {
+            $this->throwEncodeError($code, $data);
+        }
+
+        if (is_string($data)) {
+            $this->detectAndCleanUtf8($data);
+        } elseif (is_array($data)) {
+            array_walk_recursive($data, array($this, 'detectAndCleanUtf8'));
+        } else {
+            $this->throwEncodeError($code, $data);
+        }
+
+        $json = $this->jsonEncode($data);
+
+        if ($json === false) {
+            $this->throwEncodeError(json_last_error(), $data);
+        }
+
+        return $json;
+    }
+
+    /**
+     * Throws an exception according to a given code with a customized message
+     *
+     * @param  int               $code return code of json_last_error function
+     * @param  mixed             $data data that was meant to be encoded
+     * @throws \RuntimeException
+     */
+    private function throwEncodeError($code, $data)
+    {
+        switch ($code) {
+            case JSON_ERROR_DEPTH:
+                $msg = 'Maximum stack depth exceeded';
+                break;
+            case JSON_ERROR_STATE_MISMATCH:
+                $msg = 'Underflow or the modes mismatch';
+                break;
+            case JSON_ERROR_CTRL_CHAR:
+                $msg = 'Unexpected control character found';
+                break;
+            case JSON_ERROR_UTF8:
+                $msg = 'Malformed UTF-8 characters, possibly incorrectly encoded';
+                break;
+            default:
+                $msg = 'Unknown error';
+        }
+
+        throw new \RuntimeException('JSON encoding failed: '.$msg.'. Encoding: '.var_export($data, true));
+    }
+
+    /**
+     * Detect invalid UTF-8 string characters and convert to valid UTF-8.
+     *
+     * Valid UTF-8 input will be left unmodified, but strings containing
+     * invalid UTF-8 codepoints will be reencoded as UTF-8 with an assumed
+     * original encoding of ISO-8859-15. This conversion may result in
+     * incorrect output if the actual encoding was not ISO-8859-15, but it
+     * will be clean UTF-8 output and will not rely on expensive and fragile
+     * detection algorithms.
+     *
+     * Function converts the input in place in the passed variable so that it
+     * can be used as a callback for array_walk_recursive.
+     *
+     * @param mixed &$data Input to check and convert if needed
+     * @private
+     */
+    public function detectAndCleanUtf8(&$data)
+    {
+        if (is_string($data) && !preg_match('//u', $data)) {
+            $data = preg_replace_callback(
+                '/[\x80-\xFF]+/',
+                function ($m) { return utf8_encode($m[0]); },
+                $data
+            );
+            $data = str_replace(
+                array('¤', '¦', '¨', '´', '¸', '¼', '½', '¾'),
+                array('€', 'Š', 'š', 'Ž', 'ž', 'Œ', 'œ', 'Ÿ'),
+                $data
+            );
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/ScalarFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/ScalarFormatter.php
new file mode 100644
index 0000000..5d345d5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/ScalarFormatter.php
@@ -0,0 +1,48 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+/**
+ * Formats data into an associative array of scalar values.
+ * Objects and arrays will be JSON encoded.
+ *
+ * @author Andrew Lawson <adlawson@gmail.com>
+ */
+class ScalarFormatter extends NormalizerFormatter
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        foreach ($record as $key => $value) {
+            $record[$key] = $this->normalizeValue($value);
+        }
+
+        return $record;
+    }
+
+    /**
+     * @param  mixed $value
+     * @return mixed
+     */
+    protected function normalizeValue($value)
+    {
+        $normalized = $this->normalize($value);
+
+        if (is_array($normalized) || is_object($normalized)) {
+            return $this->toJson($normalized, true);
+        }
+
+        return $normalized;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/WildfireFormatter.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/WildfireFormatter.php
new file mode 100644
index 0000000..654710a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Formatter/WildfireFormatter.php
@@ -0,0 +1,113 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Formatter;
+
+use Monolog\Logger;
+
+/**
+ * Serializes a log message according to Wildfire's header requirements
+ *
+ * @author Eric Clemmons (@ericclemmons) <eric@uxdriven.com>
+ * @author Christophe Coevoet <stof@notk.org>
+ * @author Kirill chEbba Chebunin <iam@chebba.org>
+ */
+class WildfireFormatter extends NormalizerFormatter
+{
+    const TABLE = 'table';
+
+    /**
+     * Translates Monolog log levels to Wildfire levels.
+     */
+    private $logLevels = array(
+        Logger::DEBUG     => 'LOG',
+        Logger::INFO      => 'INFO',
+        Logger::NOTICE    => 'INFO',
+        Logger::WARNING   => 'WARN',
+        Logger::ERROR     => 'ERROR',
+        Logger::CRITICAL  => 'ERROR',
+        Logger::ALERT     => 'ERROR',
+        Logger::EMERGENCY => 'ERROR',
+    );
+
+    /**
+     * {@inheritdoc}
+     */
+    public function format(array $record)
+    {
+        // Retrieve the line and file if set and remove them from the formatted extra
+        $file = $line = '';
+        if (isset($record['extra']['file'])) {
+            $file = $record['extra']['file'];
+            unset($record['extra']['file']);
+        }
+        if (isset($record['extra']['line'])) {
+            $line = $record['extra']['line'];
+            unset($record['extra']['line']);
+        }
+
+        $record = $this->normalize($record);
+        $message = array('message' => $record['message']);
+        $handleError = false;
+        if ($record['context']) {
+            $message['context'] = $record['context'];
+            $handleError = true;
+        }
+        if ($record['extra']) {
+            $message['extra'] = $record['extra'];
+            $handleError = true;
+        }
+        if (count($message) === 1) {
+            $message = reset($message);
+        }
+
+        if (isset($record['context'][self::TABLE])) {
+            $type  = 'TABLE';
+            $label = $record['channel'] .': '. $record['message'];
+            $message = $record['context'][self::TABLE];
+        } else {
+            $type  = $this->logLevels[$record['level']];
+            $label = $record['channel'];
+        }
+
+        // Create JSON object describing the appearance of the message in the console
+        $json = $this->toJson(array(
+            array(
+                'Type'  => $type,
+                'File'  => $file,
+                'Line'  => $line,
+                'Label' => $label,
+            ),
+            $message,
+        ), $handleError);
+
+        // The message itself is a serialization of the above JSON object + it's length
+        return sprintf(
+            '%s|%s|',
+            strlen($json),
+            $json
+        );
+    }
+
+    public function formatBatch(array $records)
+    {
+        throw new \BadMethodCallException('Batch formatting does not make sense for the WildfireFormatter');
+    }
+
+    protected function normalize($data)
+    {
+        if (is_object($data) && !$data instanceof \DateTime) {
+            return $data;
+        }
+
+        return parent::normalize($data);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AbstractHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AbstractHandler.php
new file mode 100644
index 0000000..758a425
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AbstractHandler.php
@@ -0,0 +1,186 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\FormatterInterface;
+use Monolog\Formatter\LineFormatter;
+
+/**
+ * Base Handler class providing the Handler structure
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+abstract class AbstractHandler implements HandlerInterface
+{
+    protected $level = Logger::DEBUG;
+    protected $bubble = true;
+
+    /**
+     * @var FormatterInterface
+     */
+    protected $formatter;
+    protected $processors = array();
+
+    /**
+     * @param int     $level  The minimum logging level at which this handler will be triggered
+     * @param Boolean $bubble Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct($level = Logger::DEBUG, $bubble = true)
+    {
+        $this->setLevel($level);
+        $this->bubble = $bubble;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isHandling(array $record)
+    {
+        return $record['level'] >= $this->level;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        foreach ($records as $record) {
+            $this->handle($record);
+        }
+    }
+
+    /**
+     * Closes the handler.
+     *
+     * This will be called automatically when the object is destroyed
+     */
+    public function close()
+    {
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function pushProcessor($callback)
+    {
+        if (!is_callable($callback)) {
+            throw new \InvalidArgumentException('Processors must be valid callables (callback or object with an __invoke method), '.var_export($callback, true).' given');
+        }
+        array_unshift($this->processors, $callback);
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function popProcessor()
+    {
+        if (!$this->processors) {
+            throw new \LogicException('You tried to pop from an empty processor stack.');
+        }
+
+        return array_shift($this->processors);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setFormatter(FormatterInterface $formatter)
+    {
+        $this->formatter = $formatter;
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFormatter()
+    {
+        if (!$this->formatter) {
+            $this->formatter = $this->getDefaultFormatter();
+        }
+
+        return $this->formatter;
+    }
+
+    /**
+     * Sets minimum logging level at which this handler will be triggered.
+     *
+     * @param  int|string $level Level or level name
+     * @return self
+     */
+    public function setLevel($level)
+    {
+        $this->level = Logger::toMonologLevel($level);
+
+        return $this;
+    }
+
+    /**
+     * Gets minimum logging level at which this handler will be triggered.
+     *
+     * @return int
+     */
+    public function getLevel()
+    {
+        return $this->level;
+    }
+
+    /**
+     * Sets the bubbling behavior.
+     *
+     * @param  Boolean $bubble true means that this handler allows bubbling.
+     *                         false means that bubbling is not permitted.
+     * @return self
+     */
+    public function setBubble($bubble)
+    {
+        $this->bubble = $bubble;
+
+        return $this;
+    }
+
+    /**
+     * Gets the bubbling behavior.
+     *
+     * @return Boolean true means that this handler allows bubbling.
+     *                 false means that bubbling is not permitted.
+     */
+    public function getBubble()
+    {
+        return $this->bubble;
+    }
+
+    public function __destruct()
+    {
+        try {
+            $this->close();
+        } catch (\Exception $e) {
+            // do nothing
+        } catch (\Throwable $e) {
+            // do nothing
+        }
+    }
+
+    /**
+     * Gets the default formatter.
+     *
+     * @return FormatterInterface
+     */
+    protected function getDefaultFormatter()
+    {
+        return new LineFormatter();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php
new file mode 100644
index 0000000..6f18f72
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AbstractProcessingHandler.php
@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+/**
+ * Base Handler class providing the Handler structure
+ *
+ * Classes extending it should (in most cases) only implement write($record)
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ * @author Christophe Coevoet <stof@notk.org>
+ */
+abstract class AbstractProcessingHandler extends AbstractHandler
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(array $record)
+    {
+        if (!$this->isHandling($record)) {
+            return false;
+        }
+
+        $record = $this->processRecord($record);
+
+        $record['formatted'] = $this->getFormatter()->format($record);
+
+        $this->write($record);
+
+        return false === $this->bubble;
+    }
+
+    /**
+     * Writes the record down to the log of the implementing handler
+     *
+     * @param  array $record
+     * @return void
+     */
+    abstract protected function write(array $record);
+
+    /**
+     * Processes a record.
+     *
+     * @param  array $record
+     * @return array
+     */
+    protected function processRecord(array $record)
+    {
+        if ($this->processors) {
+            foreach ($this->processors as $processor) {
+                $record = call_user_func($processor, $record);
+            }
+        }
+
+        return $record;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AbstractSyslogHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AbstractSyslogHandler.php
new file mode 100644
index 0000000..e2b2832
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AbstractSyslogHandler.php
@@ -0,0 +1,101 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\LineFormatter;
+
+/**
+ * Common syslog functionality
+ */
+abstract class AbstractSyslogHandler extends AbstractProcessingHandler
+{
+    protected $facility;
+
+    /**
+     * Translates Monolog log levels to syslog log priorities.
+     */
+    protected $logLevels = array(
+        Logger::DEBUG     => LOG_DEBUG,
+        Logger::INFO      => LOG_INFO,
+        Logger::NOTICE    => LOG_NOTICE,
+        Logger::WARNING   => LOG_WARNING,
+        Logger::ERROR     => LOG_ERR,
+        Logger::CRITICAL  => LOG_CRIT,
+        Logger::ALERT     => LOG_ALERT,
+        Logger::EMERGENCY => LOG_EMERG,
+    );
+
+    /**
+     * List of valid log facility names.
+     */
+    protected $facilities = array(
+        'auth'     => LOG_AUTH,
+        'authpriv' => LOG_AUTHPRIV,
+        'cron'     => LOG_CRON,
+        'daemon'   => LOG_DAEMON,
+        'kern'     => LOG_KERN,
+        'lpr'      => LOG_LPR,
+        'mail'     => LOG_MAIL,
+        'news'     => LOG_NEWS,
+        'syslog'   => LOG_SYSLOG,
+        'user'     => LOG_USER,
+        'uucp'     => LOG_UUCP,
+    );
+
+    /**
+     * @param mixed   $facility
+     * @param int     $level    The minimum logging level at which this handler will be triggered
+     * @param Boolean $bubble   Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct($facility = LOG_USER, $level = Logger::DEBUG, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+
+        if (!defined('PHP_WINDOWS_VERSION_BUILD')) {
+            $this->facilities['local0'] = LOG_LOCAL0;
+            $this->facilities['local1'] = LOG_LOCAL1;
+            $this->facilities['local2'] = LOG_LOCAL2;
+            $this->facilities['local3'] = LOG_LOCAL3;
+            $this->facilities['local4'] = LOG_LOCAL4;
+            $this->facilities['local5'] = LOG_LOCAL5;
+            $this->facilities['local6'] = LOG_LOCAL6;
+            $this->facilities['local7'] = LOG_LOCAL7;
+        } else {
+            $this->facilities['local0'] = 128; // LOG_LOCAL0
+            $this->facilities['local1'] = 136; // LOG_LOCAL1
+            $this->facilities['local2'] = 144; // LOG_LOCAL2
+            $this->facilities['local3'] = 152; // LOG_LOCAL3
+            $this->facilities['local4'] = 160; // LOG_LOCAL4
+            $this->facilities['local5'] = 168; // LOG_LOCAL5
+            $this->facilities['local6'] = 176; // LOG_LOCAL6
+            $this->facilities['local7'] = 184; // LOG_LOCAL7
+        }
+
+        // convert textual description of facility to syslog constant
+        if (array_key_exists(strtolower($facility), $this->facilities)) {
+            $facility = $this->facilities[strtolower($facility)];
+        } elseif (!in_array($facility, array_values($this->facilities), true)) {
+            throw new \UnexpectedValueException('Unknown facility value "'.$facility.'" given');
+        }
+
+        $this->facility = $facility;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new LineFormatter('%channel%.%level_name%: %message% %context% %extra%');
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AmqpHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AmqpHandler.php
new file mode 100644
index 0000000..e5a46bc
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/AmqpHandler.php
@@ -0,0 +1,148 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\JsonFormatter;
+use PhpAmqpLib\Message\AMQPMessage;
+use PhpAmqpLib\Channel\AMQPChannel;
+use AMQPExchange;
+
+class AmqpHandler extends AbstractProcessingHandler
+{
+    /**
+     * @var AMQPExchange|AMQPChannel $exchange
+     */
+    protected $exchange;
+
+    /**
+     * @var string
+     */
+    protected $exchangeName;
+
+    /**
+     * @param AMQPExchange|AMQPChannel $exchange     AMQPExchange (php AMQP ext) or PHP AMQP lib channel, ready for use
+     * @param string                   $exchangeName
+     * @param int                      $level
+     * @param bool                     $bubble       Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct($exchange, $exchangeName = 'log', $level = Logger::DEBUG, $bubble = true)
+    {
+        if ($exchange instanceof AMQPExchange) {
+            $exchange->setName($exchangeName);
+        } elseif ($exchange instanceof AMQPChannel) {
+            $this->exchangeName = $exchangeName;
+        } else {
+            throw new \InvalidArgumentException('PhpAmqpLib\Channel\AMQPChannel or AMQPExchange instance required');
+        }
+        $this->exchange = $exchange;
+
+        parent::__construct($level, $bubble);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function write(array $record)
+    {
+        $data = $record["formatted"];
+        $routingKey = $this->getRoutingKey($record);
+
+        if ($this->exchange instanceof AMQPExchange) {
+            $this->exchange->publish(
+                $data,
+                $routingKey,
+                0,
+                array(
+                    'delivery_mode' => 2,
+                    'content_type' => 'application/json',
+                )
+            );
+        } else {
+            $this->exchange->basic_publish(
+                $this->createAmqpMessage($data),
+                $this->exchangeName,
+                $routingKey
+            );
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function handleBatch(array $records)
+    {
+        if ($this->exchange instanceof AMQPExchange) {
+            parent::handleBatch($records);
+
+            return;
+        }
+
+        foreach ($records as $record) {
+            if (!$this->isHandling($record)) {
+                continue;
+            }
+
+            $record = $this->processRecord($record);
+            $data = $this->getFormatter()->format($record);
+
+            $this->exchange->batch_basic_publish(
+                $this->createAmqpMessage($data),
+                $this->exchangeName,
+                $this->getRoutingKey($record)
+            );
+        }
+
+        $this->exchange->publish_batch();
+    }
+
+    /**
+     * Gets the routing key for the AMQP exchange
+     *
+     * @param  array  $record
+     * @return string
+     */
+    protected function getRoutingKey(array $record)
+    {
+        $routingKey = sprintf(
+            '%s.%s',
+            // TODO 2.0 remove substr call
+            substr($record['level_name'], 0, 4),
+            $record['channel']
+        );
+
+        return strtolower($routingKey);
+    }
+
+    /**
+     * @param  string      $data
+     * @return AMQPMessage
+     */
+    private function createAmqpMessage($data)
+    {
+        return new AMQPMessage(
+            (string) $data,
+            array(
+                'delivery_mode' => 2,
+                'content_type' => 'application/json',
+            )
+        );
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new JsonFormatter(JsonFormatter::BATCH_MODE_JSON, false);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/BrowserConsoleHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/BrowserConsoleHandler.php
new file mode 100644
index 0000000..b3a21bd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/BrowserConsoleHandler.php
@@ -0,0 +1,230 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\LineFormatter;
+
+/**
+ * Handler sending logs to browser's javascript console with no browser extension required
+ *
+ * @author Olivier Poitrey <rs@dailymotion.com>
+ */
+class BrowserConsoleHandler extends AbstractProcessingHandler
+{
+    protected static $initialized = false;
+    protected static $records = array();
+
+    /**
+     * {@inheritDoc}
+     *
+     * Formatted output may contain some formatting markers to be transferred to `console.log` using the %c format.
+     *
+     * Example of formatted string:
+     *
+     *     You can do [[blue text]]{color: blue} or [[green background]]{background-color: green; color: white}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new LineFormatter('[[%channel%]]{macro: autolabel} [[%level_name%]]{font-weight: bold} %message%');
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function write(array $record)
+    {
+        // Accumulate records
+        self::$records[] = $record;
+
+        // Register shutdown handler if not already done
+        if (!self::$initialized) {
+            self::$initialized = true;
+            $this->registerShutdownFunction();
+        }
+    }
+
+    /**
+     * Convert records to javascript console commands and send it to the browser.
+     * This method is automatically called on PHP shutdown if output is HTML or Javascript.
+     */
+    public static function send()
+    {
+        $format = self::getResponseFormat();
+        if ($format === 'unknown') {
+            return;
+        }
+
+        if (count(self::$records)) {
+            if ($format === 'html') {
+                self::writeOutput('<script>' . self::generateScript() . '</script>');
+            } elseif ($format === 'js') {
+                self::writeOutput(self::generateScript());
+            }
+            self::reset();
+        }
+    }
+
+    /**
+     * Forget all logged records
+     */
+    public static function reset()
+    {
+        self::$records = array();
+    }
+
+    /**
+     * Wrapper for register_shutdown_function to allow overriding
+     */
+    protected function registerShutdownFunction()
+    {
+        if (PHP_SAPI !== 'cli') {
+            register_shutdown_function(array('Monolog\Handler\BrowserConsoleHandler', 'send'));
+        }
+    }
+
+    /**
+     * Wrapper for echo to allow overriding
+     *
+     * @param string $str
+     */
+    protected static function writeOutput($str)
+    {
+        echo $str;
+    }
+
+    /**
+     * Checks the format of the response
+     *
+     * If Content-Type is set to application/javascript or text/javascript -> js
+     * If Content-Type is set to text/html, or is unset -> html
+     * If Content-Type is anything else -> unknown
+     *
+     * @return string One of 'js', 'html' or 'unknown'
+     */
+    protected static function getResponseFormat()
+    {
+        // Check content type
+        foreach (headers_list() as $header) {
+            if (stripos($header, 'content-type:') === 0) {
+                // This handler only works with HTML and javascript outputs
+                // text/javascript is obsolete in favour of application/javascript, but still used
+                if (stripos($header, 'application/javascript') !== false || stripos($header, 'text/javascript') !== false) {
+                    return 'js';
+                }
+                if (stripos($header, 'text/html') === false) {
+                    return 'unknown';
+                }
+                break;
+            }
+        }
+
+        return 'html';
+    }
+
+    private static function generateScript()
+    {
+        $script = array();
+        foreach (self::$records as $record) {
+            $context = self::dump('Context', $record['context']);
+            $extra = self::dump('Extra', $record['extra']);
+
+            if (empty($context) && empty($extra)) {
+                $script[] = self::call_array('log', self::handleStyles($record['formatted']));
+            } else {
+                $script = array_merge($script,
+                    array(self::call_array('groupCollapsed', self::handleStyles($record['formatted']))),
+                    $context,
+                    $extra,
+                    array(self::call('groupEnd'))
+                );
+            }
+        }
+
+        return "(function (c) {if (c && c.groupCollapsed) {\n" . implode("\n", $script) . "\n}})(console);";
+    }
+
+    private static function handleStyles($formatted)
+    {
+        $args = array(self::quote('font-weight: normal'));
+        $format = '%c' . $formatted;
+        preg_match_all('/\[\[(.*?)\]\]\{([^}]*)\}/s', $format, $matches, PREG_OFFSET_CAPTURE | PREG_SET_ORDER);
+
+        foreach (array_reverse($matches) as $match) {
+            $args[] = self::quote(self::handleCustomStyles($match[2][0], $match[1][0]));
+            $args[] = '"font-weight: normal"';
+
+            $pos = $match[0][1];
+            $format = substr($format, 0, $pos) . '%c' . $match[1][0] . '%c' . substr($format, $pos + strlen($match[0][0]));
+        }
+
+        array_unshift($args, self::quote($format));
+
+        return $args;
+    }
+
+    private static function handleCustomStyles($style, $string)
+    {
+        static $colors = array('blue', 'green', 'red', 'magenta', 'orange', 'black', 'grey');
+        static $labels = array();
+
+        return preg_replace_callback('/macro\s*:(.*?)(?:;|$)/', function ($m) use ($string, &$colors, &$labels) {
+            if (trim($m[1]) === 'autolabel') {
+                // Format the string as a label with consistent auto assigned background color
+                if (!isset($labels[$string])) {
+                    $labels[$string] = $colors[count($labels) % count($colors)];
+                }
+                $color = $labels[$string];
+
+                return "background-color: $color; color: white; border-radius: 3px; padding: 0 2px 0 2px";
+            }
+
+            return $m[1];
+        }, $style);
+    }
+
+    private static function dump($title, array $dict)
+    {
+        $script = array();
+        $dict = array_filter($dict);
+        if (empty($dict)) {
+            return $script;
+        }
+        $script[] = self::call('log', self::quote('%c%s'), self::quote('font-weight: bold'), self::quote($title));
+        foreach ($dict as $key => $value) {
+            $value = json_encode($value);
+            if (empty($value)) {
+                $value = self::quote('');
+            }
+            $script[] = self::call('log', self::quote('%s: %o'), self::quote($key), $value);
+        }
+
+        return $script;
+    }
+
+    private static function quote($arg)
+    {
+        return '"' . addcslashes($arg, "\"\n\\") . '"';
+    }
+
+    private static function call()
+    {
+        $args = func_get_args();
+        $method = array_shift($args);
+
+        return self::call_array($method, $args);
+    }
+
+    private static function call_array($method, array $args)
+    {
+        return 'c.' . $method . '(' . implode(', ', $args) . ');';
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/BufferHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/BufferHandler.php
new file mode 100644
index 0000000..72f8953
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/BufferHandler.php
@@ -0,0 +1,117 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Buffers all records until closing the handler and then pass them as batch.
+ *
+ * This is useful for a MailHandler to send only one mail per request instead of
+ * sending one per log message.
+ *
+ * @author Christophe Coevoet <stof@notk.org>
+ */
+class BufferHandler extends AbstractHandler
+{
+    protected $handler;
+    protected $bufferSize = 0;
+    protected $bufferLimit;
+    protected $flushOnOverflow;
+    protected $buffer = array();
+    protected $initialized = false;
+
+    /**
+     * @param HandlerInterface $handler         Handler.
+     * @param int              $bufferLimit     How many entries should be buffered at most, beyond that the oldest items are removed from the buffer.
+     * @param int              $level           The minimum logging level at which this handler will be triggered
+     * @param Boolean          $bubble          Whether the messages that are handled can bubble up the stack or not
+     * @param Boolean          $flushOnOverflow If true, the buffer is flushed when the max size has been reached, by default oldest entries are discarded
+     */
+    public function __construct(HandlerInterface $handler, $bufferLimit = 0, $level = Logger::DEBUG, $bubble = true, $flushOnOverflow = false)
+    {
+        parent::__construct($level, $bubble);
+        $this->handler = $handler;
+        $this->bufferLimit = (int) $bufferLimit;
+        $this->flushOnOverflow = $flushOnOverflow;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(array $record)
+    {
+        if ($record['level'] < $this->level) {
+            return false;
+        }
+
+        if (!$this->initialized) {
+            // __destructor() doesn't get called on Fatal errors
+            register_shutdown_function(array($this, 'close'));
+            $this->initialized = true;
+        }
+
+        if ($this->bufferLimit > 0 && $this->bufferSize === $this->bufferLimit) {
+            if ($this->flushOnOverflow) {
+                $this->flush();
+            } else {
+                array_shift($this->buffer);
+                $this->bufferSize--;
+            }
+        }
+
+        if ($this->processors) {
+            foreach ($this->processors as $processor) {
+                $record = call_user_func($processor, $record);
+            }
+        }
+
+        $this->buffer[] = $record;
+        $this->bufferSize++;
+
+        return false === $this->bubble;
+    }
+
+    public function flush()
+    {
+        if ($this->bufferSize === 0) {
+            return;
+        }
+
+        $this->handler->handleBatch($this->buffer);
+        $this->clear();
+    }
+
+    public function __destruct()
+    {
+        // suppress the parent behavior since we already have register_shutdown_function()
+        // to call close(), and the reference contained there will prevent this from being
+        // GC'd until the end of the request
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        $this->flush();
+    }
+
+    /**
+     * Clears the buffer without flushing any messages down to the wrapped handler.
+     */
+    public function clear()
+    {
+        $this->bufferSize = 0;
+        $this->buffer = array();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ChromePHPHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ChromePHPHandler.php
new file mode 100644
index 0000000..785cb0c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ChromePHPHandler.php
@@ -0,0 +1,211 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\ChromePHPFormatter;
+use Monolog\Logger;
+
+/**
+ * Handler sending logs to the ChromePHP extension (http://www.chromephp.com/)
+ *
+ * This also works out of the box with Firefox 43+
+ *
+ * @author Christophe Coevoet <stof@notk.org>
+ */
+class ChromePHPHandler extends AbstractProcessingHandler
+{
+    /**
+     * Version of the extension
+     */
+    const VERSION = '4.0';
+
+    /**
+     * Header name
+     */
+    const HEADER_NAME = 'X-ChromeLogger-Data';
+    
+    /**
+     * Regular expression to detect supported browsers (matches any Chrome, or Firefox 43+)
+     */
+    const USER_AGENT_REGEX = '{\b(?:Chrome/\d+(?:\.\d+)*|HeadlessChrome|Firefox/(?:4[3-9]|[5-9]\d|\d{3,})(?:\.\d)*)\b}';
+
+    protected static $initialized = false;
+
+    /**
+     * Tracks whether we sent too much data
+     *
+     * Chrome limits the headers to 256KB, so when we sent 240KB we stop sending
+     *
+     * @var Boolean
+     */
+    protected static $overflowed = false;
+
+    protected static $json = array(
+        'version' => self::VERSION,
+        'columns' => array('label', 'log', 'backtrace', 'type'),
+        'rows' => array(),
+    );
+
+    protected static $sendHeaders = true;
+
+    /**
+     * @param int     $level  The minimum logging level at which this handler will be triggered
+     * @param Boolean $bubble Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct($level = Logger::DEBUG, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+        if (!function_exists('json_encode')) {
+            throw new \RuntimeException('PHP\'s json extension is required to use Monolog\'s ChromePHPHandler');
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        $messages = array();
+
+        foreach ($records as $record) {
+            if ($record['level'] < $this->level) {
+                continue;
+            }
+            $messages[] = $this->processRecord($record);
+        }
+
+        if (!empty($messages)) {
+            $messages = $this->getFormatter()->formatBatch($messages);
+            self::$json['rows'] = array_merge(self::$json['rows'], $messages);
+            $this->send();
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new ChromePHPFormatter();
+    }
+
+    /**
+     * Creates & sends header for a record
+     *
+     * @see sendHeader()
+     * @see send()
+     * @param array $record
+     */
+    protected function write(array $record)
+    {
+        self::$json['rows'][] = $record['formatted'];
+
+        $this->send();
+    }
+
+    /**
+     * Sends the log header
+     *
+     * @see sendHeader()
+     */
+    protected function send()
+    {
+        if (self::$overflowed || !self::$sendHeaders) {
+            return;
+        }
+
+        if (!self::$initialized) {
+            self::$initialized = true;
+
+            self::$sendHeaders = $this->headersAccepted();
+            if (!self::$sendHeaders) {
+                return;
+            }
+
+            self::$json['request_uri'] = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '';
+        }
+
+        $json = @json_encode(self::$json);
+        $data = base64_encode(utf8_encode($json));
+        if (strlen($data) > 240 * 1024) {
+            self::$overflowed = true;
+
+            $record = array(
+                'message' => 'Incomplete logs, chrome header size limit reached',
+                'context' => array(),
+                'level' => Logger::WARNING,
+                'level_name' => Logger::getLevelName(Logger::WARNING),
+                'channel' => 'monolog',
+                'datetime' => new \DateTime(),
+                'extra' => array(),
+            );
+            self::$json['rows'][count(self::$json['rows']) - 1] = $this->getFormatter()->format($record);
+            $json = @json_encode(self::$json);
+            $data = base64_encode(utf8_encode($json));
+        }
+
+        if (trim($data) !== '') {
+            $this->sendHeader(self::HEADER_NAME, $data);
+        }
+    }
+
+    /**
+     * Send header string to the client
+     *
+     * @param string $header
+     * @param string $content
+     */
+    protected function sendHeader($header, $content)
+    {
+        if (!headers_sent() && self::$sendHeaders) {
+            header(sprintf('%s: %s', $header, $content));
+        }
+    }
+
+    /**
+     * Verifies if the headers are accepted by the current user agent
+     *
+     * @return Boolean
+     */
+    protected function headersAccepted()
+    {
+        if (empty($_SERVER['HTTP_USER_AGENT'])) {
+            return false;
+        }
+
+        return preg_match(self::USER_AGENT_REGEX, $_SERVER['HTTP_USER_AGENT']);
+    }
+
+    /**
+     * BC getter for the sendHeaders property that has been made static
+     */
+    public function __get($property)
+    {
+        if ('sendHeaders' !== $property) {
+            throw new \InvalidArgumentException('Undefined property '.$property);
+        }
+
+        return static::$sendHeaders;
+    }
+
+    /**
+     * BC setter for the sendHeaders property that has been made static
+     */
+    public function __set($property, $value)
+    {
+        if ('sendHeaders' !== $property) {
+            throw new \InvalidArgumentException('Undefined property '.$property);
+        }
+
+        static::$sendHeaders = $value;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/CouchDBHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/CouchDBHandler.php
new file mode 100644
index 0000000..cc98697
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/CouchDBHandler.php
@@ -0,0 +1,72 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\JsonFormatter;
+use Monolog\Logger;
+
+/**
+ * CouchDB handler
+ *
+ * @author Markus Bachmann <markus.bachmann@bachi.biz>
+ */
+class CouchDBHandler extends AbstractProcessingHandler
+{
+    private $options;
+
+    public function __construct(array $options = array(), $level = Logger::DEBUG, $bubble = true)
+    {
+        $this->options = array_merge(array(
+            'host'     => 'localhost',
+            'port'     => 5984,
+            'dbname'   => 'logger',
+            'username' => null,
+            'password' => null,
+        ), $options);
+
+        parent::__construct($level, $bubble);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function write(array $record)
+    {
+        $basicAuth = null;
+        if ($this->options['username']) {
+            $basicAuth = sprintf('%s:%s@', $this->options['username'], $this->options['password']);
+        }
+
+        $url = 'http://'.$basicAuth.$this->options['host'].':'.$this->options['port'].'/'.$this->options['dbname'];
+        $context = stream_context_create(array(
+            'http' => array(
+                'method'        => 'POST',
+                'content'       => $record['formatted'],
+                'ignore_errors' => true,
+                'max_redirects' => 0,
+                'header'        => 'Content-type: application/json',
+            ),
+        ));
+
+        if (false === @file_get_contents($url, null, $context)) {
+            throw new \RuntimeException(sprintf('Could not connect to %s', $url));
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new JsonFormatter(JsonFormatter::BATCH_MODE_JSON, false);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/CubeHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/CubeHandler.php
new file mode 100644
index 0000000..96b3ca0
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/CubeHandler.php
@@ -0,0 +1,151 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Logs to Cube.
+ *
+ * @link http://square.github.com/cube/
+ * @author Wan Chen <kami@kamisama.me>
+ */
+class CubeHandler extends AbstractProcessingHandler
+{
+    private $udpConnection;
+    private $httpConnection;
+    private $scheme;
+    private $host;
+    private $port;
+    private $acceptedSchemes = array('http', 'udp');
+
+    /**
+     * Create a Cube handler
+     *
+     * @throws \UnexpectedValueException when given url is not a valid url.
+     *                                   A valid url must consist of three parts : protocol://host:port
+     *                                   Only valid protocols used by Cube are http and udp
+     */
+    public function __construct($url, $level = Logger::DEBUG, $bubble = true)
+    {
+        $urlInfo = parse_url($url);
+
+        if (!isset($urlInfo['scheme'], $urlInfo['host'], $urlInfo['port'])) {
+            throw new \UnexpectedValueException('URL "'.$url.'" is not valid');
+        }
+
+        if (!in_array($urlInfo['scheme'], $this->acceptedSchemes)) {
+            throw new \UnexpectedValueException(
+                'Invalid protocol (' . $urlInfo['scheme']  . ').'
+                . ' Valid options are ' . implode(', ', $this->acceptedSchemes));
+        }
+
+        $this->scheme = $urlInfo['scheme'];
+        $this->host = $urlInfo['host'];
+        $this->port = $urlInfo['port'];
+
+        parent::__construct($level, $bubble);
+    }
+
+    /**
+     * Establish a connection to an UDP socket
+     *
+     * @throws \LogicException           when unable to connect to the socket
+     * @throws MissingExtensionException when there is no socket extension
+     */
+    protected function connectUdp()
+    {
+        if (!extension_loaded('sockets')) {
+            throw new MissingExtensionException('The sockets extension is required to use udp URLs with the CubeHandler');
+        }
+
+        $this->udpConnection = socket_create(AF_INET, SOCK_DGRAM, 0);
+        if (!$this->udpConnection) {
+            throw new \LogicException('Unable to create a socket');
+        }
+
+        if (!socket_connect($this->udpConnection, $this->host, $this->port)) {
+            throw new \LogicException('Unable to connect to the socket at ' . $this->host . ':' . $this->port);
+        }
+    }
+
+    /**
+     * Establish a connection to a http server
+     * @throws \LogicException when no curl extension
+     */
+    protected function connectHttp()
+    {
+        if (!extension_loaded('curl')) {
+            throw new \LogicException('The curl extension is needed to use http URLs with the CubeHandler');
+        }
+
+        $this->httpConnection = curl_init('http://'.$this->host.':'.$this->port.'/1.0/event/put');
+
+        if (!$this->httpConnection) {
+            throw new \LogicException('Unable to connect to ' . $this->host . ':' . $this->port);
+        }
+
+        curl_setopt($this->httpConnection, CURLOPT_CUSTOMREQUEST, "POST");
+        curl_setopt($this->httpConnection, CURLOPT_RETURNTRANSFER, true);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        $date = $record['datetime'];
+
+        $data = array('time' => $date->format('Y-m-d\TH:i:s.uO'));
+        unset($record['datetime']);
+
+        if (isset($record['context']['type'])) {
+            $data['type'] = $record['context']['type'];
+            unset($record['context']['type']);
+        } else {
+            $data['type'] = $record['channel'];
+        }
+
+        $data['data'] = $record['context'];
+        $data['data']['level'] = $record['level'];
+
+        if ($this->scheme === 'http') {
+            $this->writeHttp(json_encode($data));
+        } else {
+            $this->writeUdp(json_encode($data));
+        }
+    }
+
+    private function writeUdp($data)
+    {
+        if (!$this->udpConnection) {
+            $this->connectUdp();
+        }
+
+        socket_send($this->udpConnection, $data, strlen($data), 0);
+    }
+
+    private function writeHttp($data)
+    {
+        if (!$this->httpConnection) {
+            $this->connectHttp();
+        }
+
+        curl_setopt($this->httpConnection, CURLOPT_POSTFIELDS, '['.$data.']');
+        curl_setopt($this->httpConnection, CURLOPT_HTTPHEADER, array(
+            'Content-Type: application/json',
+            'Content-Length: ' . strlen('['.$data.']'),
+        ));
+
+        Curl\Util::execute($this->httpConnection, 5, false);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/Curl/Util.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/Curl/Util.php
new file mode 100644
index 0000000..48d30b3
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/Curl/Util.php
@@ -0,0 +1,57 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler\Curl;
+
+class Util
+{
+    private static $retriableErrorCodes = array(
+        CURLE_COULDNT_RESOLVE_HOST,
+        CURLE_COULDNT_CONNECT,
+        CURLE_HTTP_NOT_FOUND,
+        CURLE_READ_ERROR,
+        CURLE_OPERATION_TIMEOUTED,
+        CURLE_HTTP_POST_ERROR,
+        CURLE_SSL_CONNECT_ERROR,
+    );
+
+    /**
+     * Executes a CURL request with optional retries and exception on failure
+     *
+     * @param  resource          $ch curl handler
+     * @throws \RuntimeException
+     */
+    public static function execute($ch, $retries = 5, $closeAfterDone = true)
+    {
+        while ($retries--) {
+            if (curl_exec($ch) === false) {
+                $curlErrno = curl_errno($ch);
+
+                if (false === in_array($curlErrno, self::$retriableErrorCodes, true) || !$retries) {
+                    $curlError = curl_error($ch);
+
+                    if ($closeAfterDone) {
+                        curl_close($ch);
+                    }
+
+                    throw new \RuntimeException(sprintf('Curl error (code %s): %s', $curlErrno, $curlError));
+                }
+
+                continue;
+            }
+
+            if ($closeAfterDone) {
+                curl_close($ch);
+            }
+            break;
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/DeduplicationHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/DeduplicationHandler.php
new file mode 100644
index 0000000..7778c22
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/DeduplicationHandler.php
@@ -0,0 +1,169 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Simple handler wrapper that deduplicates log records across multiple requests
+ *
+ * It also includes the BufferHandler functionality and will buffer
+ * all messages until the end of the request or flush() is called.
+ *
+ * This works by storing all log records' messages above $deduplicationLevel
+ * to the file specified by $deduplicationStore. When further logs come in at the end of the
+ * request (or when flush() is called), all those above $deduplicationLevel are checked
+ * against the existing stored logs. If they match and the timestamps in the stored log is
+ * not older than $time seconds, the new log record is discarded. If no log record is new, the
+ * whole data set is discarded.
+ *
+ * This is mainly useful in combination with Mail handlers or things like Slack or HipChat handlers
+ * that send messages to people, to avoid spamming with the same message over and over in case of
+ * a major component failure like a database server being down which makes all requests fail in the
+ * same way.
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class DeduplicationHandler extends BufferHandler
+{
+    /**
+     * @var string
+     */
+    protected $deduplicationStore;
+
+    /**
+     * @var int
+     */
+    protected $deduplicationLevel;
+
+    /**
+     * @var int
+     */
+    protected $time;
+
+    /**
+     * @var bool
+     */
+    private $gc = false;
+
+    /**
+     * @param HandlerInterface $handler            Handler.
+     * @param string           $deduplicationStore The file/path where the deduplication log should be kept
+     * @param int              $deduplicationLevel The minimum logging level for log records to be looked at for deduplication purposes
+     * @param int              $time               The period (in seconds) during which duplicate entries should be suppressed after a given log is sent through
+     * @param Boolean          $bubble             Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct(HandlerInterface $handler, $deduplicationStore = null, $deduplicationLevel = Logger::ERROR, $time = 60, $bubble = true)
+    {
+        parent::__construct($handler, 0, Logger::DEBUG, $bubble, false);
+
+        $this->deduplicationStore = $deduplicationStore === null ? sys_get_temp_dir() . '/monolog-dedup-' . substr(md5(__FILE__), 0, 20) .'.log' : $deduplicationStore;
+        $this->deduplicationLevel = Logger::toMonologLevel($deduplicationLevel);
+        $this->time = $time;
+    }
+
+    public function flush()
+    {
+        if ($this->bufferSize === 0) {
+            return;
+        }
+
+        $passthru = null;
+
+        foreach ($this->buffer as $record) {
+            if ($record['level'] >= $this->deduplicationLevel) {
+
+                $passthru = $passthru || !$this->isDuplicate($record);
+                if ($passthru) {
+                    $this->appendRecord($record);
+                }
+            }
+        }
+
+        // default of null is valid as well as if no record matches duplicationLevel we just pass through
+        if ($passthru === true || $passthru === null) {
+            $this->handler->handleBatch($this->buffer);
+        }
+
+        $this->clear();
+
+        if ($this->gc) {
+            $this->collectLogs();
+        }
+    }
+
+    private function isDuplicate(array $record)
+    {
+        if (!file_exists($this->deduplicationStore)) {
+            return false;
+        }
+
+        $store = file($this->deduplicationStore, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+        if (!is_array($store)) {
+            return false;
+        }
+
+        $yesterday = time() - 86400;
+        $timestampValidity = $record['datetime']->getTimestamp() - $this->time;
+        $expectedMessage = preg_replace('{[\r\n].*}', '', $record['message']);
+
+        for ($i = count($store) - 1; $i >= 0; $i--) {
+            list($timestamp, $level, $message) = explode(':', $store[$i], 3);
+
+            if ($level === $record['level_name'] && $message === $expectedMessage && $timestamp > $timestampValidity) {
+                return true;
+            }
+
+            if ($timestamp < $yesterday) {
+                $this->gc = true;
+            }
+        }
+
+        return false;
+    }
+
+    private function collectLogs()
+    {
+        if (!file_exists($this->deduplicationStore)) {
+            return false;
+        }
+
+        $handle = fopen($this->deduplicationStore, 'rw+');
+        flock($handle, LOCK_EX);
+        $validLogs = array();
+
+        $timestampValidity = time() - $this->time;
+
+        while (!feof($handle)) {
+            $log = fgets($handle);
+            if (substr($log, 0, 10) >= $timestampValidity) {
+                $validLogs[] = $log;
+            }
+        }
+
+        ftruncate($handle, 0);
+        rewind($handle);
+        foreach ($validLogs as $log) {
+            fwrite($handle, $log);
+        }
+
+        flock($handle, LOCK_UN);
+        fclose($handle);
+
+        $this->gc = false;
+    }
+
+    private function appendRecord(array $record)
+    {
+        file_put_contents($this->deduplicationStore, $record['datetime']->getTimestamp() . ':' . $record['level_name'] . ':' . preg_replace('{[\r\n].*}', '', $record['message']) . "\n", FILE_APPEND);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/DoctrineCouchDBHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/DoctrineCouchDBHandler.php
new file mode 100644
index 0000000..b91ffec
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/DoctrineCouchDBHandler.php
@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\NormalizerFormatter;
+use Doctrine\CouchDB\CouchDBClient;
+
+/**
+ * CouchDB handler for Doctrine CouchDB ODM
+ *
+ * @author Markus Bachmann <markus.bachmann@bachi.biz>
+ */
+class DoctrineCouchDBHandler extends AbstractProcessingHandler
+{
+    private $client;
+
+    public function __construct(CouchDBClient $client, $level = Logger::DEBUG, $bubble = true)
+    {
+        $this->client = $client;
+        parent::__construct($level, $bubble);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function write(array $record)
+    {
+        $this->client->postDocument($record['formatted']);
+    }
+
+    protected function getDefaultFormatter()
+    {
+        return new NormalizerFormatter;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/DynamoDbHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/DynamoDbHandler.php
new file mode 100644
index 0000000..237b71f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/DynamoDbHandler.php
@@ -0,0 +1,107 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Aws\Sdk;
+use Aws\DynamoDb\DynamoDbClient;
+use Aws\DynamoDb\Marshaler;
+use Monolog\Formatter\ScalarFormatter;
+use Monolog\Logger;
+
+/**
+ * Amazon DynamoDB handler (http://aws.amazon.com/dynamodb/)
+ *
+ * @link https://github.com/aws/aws-sdk-php/
+ * @author Andrew Lawson <adlawson@gmail.com>
+ */
+class DynamoDbHandler extends AbstractProcessingHandler
+{
+    const DATE_FORMAT = 'Y-m-d\TH:i:s.uO';
+
+    /**
+     * @var DynamoDbClient
+     */
+    protected $client;
+
+    /**
+     * @var string
+     */
+    protected $table;
+
+    /**
+     * @var int
+     */
+    protected $version;
+
+    /**
+     * @var Marshaler
+     */
+    protected $marshaler;
+
+    /**
+     * @param DynamoDbClient $client
+     * @param string         $table
+     * @param int            $level
+     * @param bool           $bubble
+     */
+    public function __construct(DynamoDbClient $client, $table, $level = Logger::DEBUG, $bubble = true)
+    {
+        if (defined('Aws\Sdk::VERSION') && version_compare(Sdk::VERSION, '3.0', '>=')) {
+            $this->version = 3;
+            $this->marshaler = new Marshaler;
+        } else {
+            $this->version = 2;
+        }
+
+        $this->client = $client;
+        $this->table = $table;
+
+        parent::__construct($level, $bubble);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        $filtered = $this->filterEmptyFields($record['formatted']);
+        if ($this->version === 3) {
+            $formatted = $this->marshaler->marshalItem($filtered);
+        } else {
+            $formatted = $this->client->formatAttributes($filtered);
+        }
+
+        $this->client->putItem(array(
+            'TableName' => $this->table,
+            'Item' => $formatted,
+        ));
+    }
+
+    /**
+     * @param  array $record
+     * @return array
+     */
+    protected function filterEmptyFields(array $record)
+    {
+        return array_filter($record, function ($value) {
+            return !empty($value) || false === $value || 0 === $value;
+        });
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new ScalarFormatter(self::DATE_FORMAT);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ElasticSearchHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ElasticSearchHandler.php
new file mode 100644
index 0000000..8196740
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ElasticSearchHandler.php
@@ -0,0 +1,128 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\FormatterInterface;
+use Monolog\Formatter\ElasticaFormatter;
+use Monolog\Logger;
+use Elastica\Client;
+use Elastica\Exception\ExceptionInterface;
+
+/**
+ * Elastic Search handler
+ *
+ * Usage example:
+ *
+ *    $client = new \Elastica\Client();
+ *    $options = array(
+ *        'index' => 'elastic_index_name',
+ *        'type' => 'elastic_doc_type',
+ *    );
+ *    $handler = new ElasticSearchHandler($client, $options);
+ *    $log = new Logger('application');
+ *    $log->pushHandler($handler);
+ *
+ * @author Jelle Vink <jelle.vink@gmail.com>
+ */
+class ElasticSearchHandler extends AbstractProcessingHandler
+{
+    /**
+     * @var Client
+     */
+    protected $client;
+
+    /**
+     * @var array Handler config options
+     */
+    protected $options = array();
+
+    /**
+     * @param Client  $client  Elastica Client object
+     * @param array   $options Handler configuration
+     * @param int     $level   The minimum logging level at which this handler will be triggered
+     * @param Boolean $bubble  Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct(Client $client, array $options = array(), $level = Logger::DEBUG, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+        $this->client = $client;
+        $this->options = array_merge(
+            array(
+                'index'          => 'monolog',      // Elastic index name
+                'type'           => 'record',       // Elastic document type
+                'ignore_error'   => false,          // Suppress Elastica exceptions
+            ),
+            $options
+        );
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function write(array $record)
+    {
+        $this->bulkSend(array($record['formatted']));
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setFormatter(FormatterInterface $formatter)
+    {
+        if ($formatter instanceof ElasticaFormatter) {
+            return parent::setFormatter($formatter);
+        }
+        throw new \InvalidArgumentException('ElasticSearchHandler is only compatible with ElasticaFormatter');
+    }
+
+    /**
+     * Getter options
+     * @return array
+     */
+    public function getOptions()
+    {
+        return $this->options;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new ElasticaFormatter($this->options['index'], $this->options['type']);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        $documents = $this->getFormatter()->formatBatch($records);
+        $this->bulkSend($documents);
+    }
+
+    /**
+     * Use Elasticsearch bulk API to send list of documents
+     * @param  array             $documents
+     * @throws \RuntimeException
+     */
+    protected function bulkSend(array $documents)
+    {
+        try {
+            $this->client->addDocuments($documents);
+        } catch (ExceptionInterface $e) {
+            if (!$this->options['ignore_error']) {
+                throw new \RuntimeException("Error sending messages to Elasticsearch", 0, $e);
+            }
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ErrorLogHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ErrorLogHandler.php
new file mode 100644
index 0000000..1447a58
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ErrorLogHandler.php
@@ -0,0 +1,82 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\LineFormatter;
+use Monolog\Logger;
+
+/**
+ * Stores to PHP error_log() handler.
+ *
+ * @author Elan Ruusamäe <glen@delfi.ee>
+ */
+class ErrorLogHandler extends AbstractProcessingHandler
+{
+    const OPERATING_SYSTEM = 0;
+    const SAPI = 4;
+
+    protected $messageType;
+    protected $expandNewlines;
+
+    /**
+     * @param int     $messageType    Says where the error should go.
+     * @param int     $level          The minimum logging level at which this handler will be triggered
+     * @param Boolean $bubble         Whether the messages that are handled can bubble up the stack or not
+     * @param Boolean $expandNewlines If set to true, newlines in the message will be expanded to be take multiple log entries
+     */
+    public function __construct($messageType = self::OPERATING_SYSTEM, $level = Logger::DEBUG, $bubble = true, $expandNewlines = false)
+    {
+        parent::__construct($level, $bubble);
+
+        if (false === in_array($messageType, self::getAvailableTypes())) {
+            $message = sprintf('The given message type "%s" is not supported', print_r($messageType, true));
+            throw new \InvalidArgumentException($message);
+        }
+
+        $this->messageType = $messageType;
+        $this->expandNewlines = $expandNewlines;
+    }
+
+    /**
+     * @return array With all available types
+     */
+    public static function getAvailableTypes()
+    {
+        return array(
+            self::OPERATING_SYSTEM,
+            self::SAPI,
+        );
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new LineFormatter('[%datetime%] %channel%.%level_name%: %message% %context% %extra%');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        if ($this->expandNewlines) {
+            $lines = preg_split('{[\r\n]+}', (string) $record['formatted']);
+            foreach ($lines as $line) {
+                error_log($line, $this->messageType);
+            }
+        } else {
+            error_log((string) $record['formatted'], $this->messageType);
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FilterHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FilterHandler.php
new file mode 100644
index 0000000..2a0f7fd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FilterHandler.php
@@ -0,0 +1,140 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Simple handler wrapper that filters records based on a list of levels
+ *
+ * It can be configured with an exact list of levels to allow, or a min/max level.
+ *
+ * @author Hennadiy Verkh
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class FilterHandler extends AbstractHandler
+{
+    /**
+     * Handler or factory callable($record, $this)
+     *
+     * @var callable|\Monolog\Handler\HandlerInterface
+     */
+    protected $handler;
+
+    /**
+     * Minimum level for logs that are passed to handler
+     *
+     * @var int[]
+     */
+    protected $acceptedLevels;
+
+    /**
+     * Whether the messages that are handled can bubble up the stack or not
+     *
+     * @var Boolean
+     */
+    protected $bubble;
+
+    /**
+     * @param callable|HandlerInterface $handler        Handler or factory callable($record, $this).
+     * @param int|array                 $minLevelOrList A list of levels to accept or a minimum level if maxLevel is provided
+     * @param int                       $maxLevel       Maximum level to accept, only used if $minLevelOrList is not an array
+     * @param Boolean                   $bubble         Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct($handler, $minLevelOrList = Logger::DEBUG, $maxLevel = Logger::EMERGENCY, $bubble = true)
+    {
+        $this->handler  = $handler;
+        $this->bubble   = $bubble;
+        $this->setAcceptedLevels($minLevelOrList, $maxLevel);
+
+        if (!$this->handler instanceof HandlerInterface && !is_callable($this->handler)) {
+            throw new \RuntimeException("The given handler (".json_encode($this->handler).") is not a callable nor a Monolog\Handler\HandlerInterface object");
+        }
+    }
+
+    /**
+     * @return array
+     */
+    public function getAcceptedLevels()
+    {
+        return array_flip($this->acceptedLevels);
+    }
+
+    /**
+     * @param int|string|array $minLevelOrList A list of levels to accept or a minimum level or level name if maxLevel is provided
+     * @param int|string       $maxLevel       Maximum level or level name to accept, only used if $minLevelOrList is not an array
+     */
+    public function setAcceptedLevels($minLevelOrList = Logger::DEBUG, $maxLevel = Logger::EMERGENCY)
+    {
+        if (is_array($minLevelOrList)) {
+            $acceptedLevels = array_map('Monolog\Logger::toMonologLevel', $minLevelOrList);
+        } else {
+            $minLevelOrList = Logger::toMonologLevel($minLevelOrList);
+            $maxLevel = Logger::toMonologLevel($maxLevel);
+            $acceptedLevels = array_values(array_filter(Logger::getLevels(), function ($level) use ($minLevelOrList, $maxLevel) {
+                return $level >= $minLevelOrList && $level <= $maxLevel;
+            }));
+        }
+        $this->acceptedLevels = array_flip($acceptedLevels);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isHandling(array $record)
+    {
+        return isset($this->acceptedLevels[$record['level']]);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(array $record)
+    {
+        if (!$this->isHandling($record)) {
+            return false;
+        }
+
+        // The same logic as in FingersCrossedHandler
+        if (!$this->handler instanceof HandlerInterface) {
+            $this->handler = call_user_func($this->handler, $record, $this);
+            if (!$this->handler instanceof HandlerInterface) {
+                throw new \RuntimeException("The factory callable should return a HandlerInterface");
+            }
+        }
+
+        if ($this->processors) {
+            foreach ($this->processors as $processor) {
+                $record = call_user_func($processor, $record);
+            }
+        }
+
+        $this->handler->handle($record);
+
+        return false === $this->bubble;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        $filtered = array();
+        foreach ($records as $record) {
+            if ($this->isHandling($record)) {
+                $filtered[] = $record;
+            }
+        }
+
+        $this->handler->handleBatch($filtered);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossed/ActivationStrategyInterface.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossed/ActivationStrategyInterface.php
new file mode 100644
index 0000000..c3e42ef
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossed/ActivationStrategyInterface.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler\FingersCrossed;
+
+/**
+ * Interface for activation strategies for the FingersCrossedHandler.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+interface ActivationStrategyInterface
+{
+    /**
+     * Returns whether the given record activates the handler.
+     *
+     * @param  array   $record
+     * @return Boolean
+     */
+    public function isHandlerActivated(array $record);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossed/ChannelLevelActivationStrategy.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossed/ChannelLevelActivationStrategy.php
new file mode 100644
index 0000000..2a2a64d
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossed/ChannelLevelActivationStrategy.php
@@ -0,0 +1,59 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler\FingersCrossed;
+
+use Monolog\Logger;
+
+/**
+ * Channel and Error level based monolog activation strategy. Allows to trigger activation
+ * based on level per channel. e.g. trigger activation on level 'ERROR' by default, except
+ * for records of the 'sql' channel; those should trigger activation on level 'WARN'.
+ *
+ * Example:
+ *
+ * <code>
+ *   $activationStrategy = new ChannelLevelActivationStrategy(
+ *       Logger::CRITICAL,
+ *       array(
+ *           'request' => Logger::ALERT,
+ *           'sensitive' => Logger::ERROR,
+ *       )
+ *   );
+ *   $handler = new FingersCrossedHandler(new StreamHandler('php://stderr'), $activationStrategy);
+ * </code>
+ *
+ * @author Mike Meessen <netmikey@gmail.com>
+ */
+class ChannelLevelActivationStrategy implements ActivationStrategyInterface
+{
+    private $defaultActionLevel;
+    private $channelToActionLevel;
+
+    /**
+     * @param int   $defaultActionLevel   The default action level to be used if the record's category doesn't match any
+     * @param array $channelToActionLevel An array that maps channel names to action levels.
+     */
+    public function __construct($defaultActionLevel, $channelToActionLevel = array())
+    {
+        $this->defaultActionLevel = Logger::toMonologLevel($defaultActionLevel);
+        $this->channelToActionLevel = array_map('Monolog\Logger::toMonologLevel', $channelToActionLevel);
+    }
+
+    public function isHandlerActivated(array $record)
+    {
+        if (isset($this->channelToActionLevel[$record['channel']])) {
+            return $record['level'] >= $this->channelToActionLevel[$record['channel']];
+        }
+
+        return $record['level'] >= $this->defaultActionLevel;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossed/ErrorLevelActivationStrategy.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossed/ErrorLevelActivationStrategy.php
new file mode 100644
index 0000000..6e63085
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossed/ErrorLevelActivationStrategy.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler\FingersCrossed;
+
+use Monolog\Logger;
+
+/**
+ * Error level based activation strategy.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ErrorLevelActivationStrategy implements ActivationStrategyInterface
+{
+    private $actionLevel;
+
+    public function __construct($actionLevel)
+    {
+        $this->actionLevel = Logger::toMonologLevel($actionLevel);
+    }
+
+    public function isHandlerActivated(array $record)
+    {
+        return $record['level'] >= $this->actionLevel;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossedHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossedHandler.php
new file mode 100644
index 0000000..d1dcaac
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FingersCrossedHandler.php
@@ -0,0 +1,163 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Handler\FingersCrossed\ErrorLevelActivationStrategy;
+use Monolog\Handler\FingersCrossed\ActivationStrategyInterface;
+use Monolog\Logger;
+
+/**
+ * Buffers all records until a certain level is reached
+ *
+ * The advantage of this approach is that you don't get any clutter in your log files.
+ * Only requests which actually trigger an error (or whatever your actionLevel is) will be
+ * in the logs, but they will contain all records, not only those above the level threshold.
+ *
+ * You can find the various activation strategies in the
+ * Monolog\Handler\FingersCrossed\ namespace.
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class FingersCrossedHandler extends AbstractHandler
+{
+    protected $handler;
+    protected $activationStrategy;
+    protected $buffering = true;
+    protected $bufferSize;
+    protected $buffer = array();
+    protected $stopBuffering;
+    protected $passthruLevel;
+
+    /**
+     * @param callable|HandlerInterface       $handler            Handler or factory callable($record, $fingersCrossedHandler).
+     * @param int|ActivationStrategyInterface $activationStrategy Strategy which determines when this handler takes action
+     * @param int                             $bufferSize         How many entries should be buffered at most, beyond that the oldest items are removed from the buffer.
+     * @param Boolean                         $bubble             Whether the messages that are handled can bubble up the stack or not
+     * @param Boolean                         $stopBuffering      Whether the handler should stop buffering after being triggered (default true)
+     * @param int                             $passthruLevel      Minimum level to always flush to handler on close, even if strategy not triggered
+     */
+    public function __construct($handler, $activationStrategy = null, $bufferSize = 0, $bubble = true, $stopBuffering = true, $passthruLevel = null)
+    {
+        if (null === $activationStrategy) {
+            $activationStrategy = new ErrorLevelActivationStrategy(Logger::WARNING);
+        }
+
+        // convert simple int activationStrategy to an object
+        if (!$activationStrategy instanceof ActivationStrategyInterface) {
+            $activationStrategy = new ErrorLevelActivationStrategy($activationStrategy);
+        }
+
+        $this->handler = $handler;
+        $this->activationStrategy = $activationStrategy;
+        $this->bufferSize = $bufferSize;
+        $this->bubble = $bubble;
+        $this->stopBuffering = $stopBuffering;
+
+        if ($passthruLevel !== null) {
+            $this->passthruLevel = Logger::toMonologLevel($passthruLevel);
+        }
+
+        if (!$this->handler instanceof HandlerInterface && !is_callable($this->handler)) {
+            throw new \RuntimeException("The given handler (".json_encode($this->handler).") is not a callable nor a Monolog\Handler\HandlerInterface object");
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isHandling(array $record)
+    {
+        return true;
+    }
+
+    /**
+     * Manually activate this logger regardless of the activation strategy
+     */
+    public function activate()
+    {
+        if ($this->stopBuffering) {
+            $this->buffering = false;
+        }
+        if (!$this->handler instanceof HandlerInterface) {
+            $record = end($this->buffer) ?: null;
+
+            $this->handler = call_user_func($this->handler, $record, $this);
+            if (!$this->handler instanceof HandlerInterface) {
+                throw new \RuntimeException("The factory callable should return a HandlerInterface");
+            }
+        }
+        $this->handler->handleBatch($this->buffer);
+        $this->buffer = array();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(array $record)
+    {
+        if ($this->processors) {
+            foreach ($this->processors as $processor) {
+                $record = call_user_func($processor, $record);
+            }
+        }
+
+        if ($this->buffering) {
+            $this->buffer[] = $record;
+            if ($this->bufferSize > 0 && count($this->buffer) > $this->bufferSize) {
+                array_shift($this->buffer);
+            }
+            if ($this->activationStrategy->isHandlerActivated($record)) {
+                $this->activate();
+            }
+        } else {
+            $this->handler->handle($record);
+        }
+
+        return false === $this->bubble;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        if (null !== $this->passthruLevel) {
+            $level = $this->passthruLevel;
+            $this->buffer = array_filter($this->buffer, function ($record) use ($level) {
+                return $record['level'] >= $level;
+            });
+            if (count($this->buffer) > 0) {
+                $this->handler->handleBatch($this->buffer);
+                $this->buffer = array();
+            }
+        }
+    }
+
+    /**
+     * Resets the state of the handler. Stops forwarding records to the wrapped handler.
+     */
+    public function reset()
+    {
+        $this->buffering = true;
+    }
+
+    /**
+     * Clears the buffer without flushing any messages down to the wrapped handler.
+     *
+     * It also resets the handler to its initial buffering state.
+     */
+    public function clear()
+    {
+        $this->buffer = array();
+        $this->reset();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FirePHPHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FirePHPHandler.php
new file mode 100644
index 0000000..fee4795
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FirePHPHandler.php
@@ -0,0 +1,195 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\WildfireFormatter;
+
+/**
+ * Simple FirePHP Handler (http://www.firephp.org/), which uses the Wildfire protocol.
+ *
+ * @author Eric Clemmons (@ericclemmons) <eric@uxdriven.com>
+ */
+class FirePHPHandler extends AbstractProcessingHandler
+{
+    /**
+     * WildFire JSON header message format
+     */
+    const PROTOCOL_URI = 'http://meta.wildfirehq.org/Protocol/JsonStream/0.2';
+
+    /**
+     * FirePHP structure for parsing messages & their presentation
+     */
+    const STRUCTURE_URI = 'http://meta.firephp.org/Wildfire/Structure/FirePHP/FirebugConsole/0.1';
+
+    /**
+     * Must reference a "known" plugin, otherwise headers won't display in FirePHP
+     */
+    const PLUGIN_URI = 'http://meta.firephp.org/Wildfire/Plugin/FirePHP/Library-FirePHPCore/0.3';
+
+    /**
+     * Header prefix for Wildfire to recognize & parse headers
+     */
+    const HEADER_PREFIX = 'X-Wf';
+
+    /**
+     * Whether or not Wildfire vendor-specific headers have been generated & sent yet
+     */
+    protected static $initialized = false;
+
+    /**
+     * Shared static message index between potentially multiple handlers
+     * @var int
+     */
+    protected static $messageIndex = 1;
+
+    protected static $sendHeaders = true;
+
+    /**
+     * Base header creation function used by init headers & record headers
+     *
+     * @param  array  $meta    Wildfire Plugin, Protocol & Structure Indexes
+     * @param  string $message Log message
+     * @return array  Complete header string ready for the client as key and message as value
+     */
+    protected function createHeader(array $meta, $message)
+    {
+        $header = sprintf('%s-%s', self::HEADER_PREFIX, join('-', $meta));
+
+        return array($header => $message);
+    }
+
+    /**
+     * Creates message header from record
+     *
+     * @see createHeader()
+     * @param  array  $record
+     * @return string
+     */
+    protected function createRecordHeader(array $record)
+    {
+        // Wildfire is extensible to support multiple protocols & plugins in a single request,
+        // but we're not taking advantage of that (yet), so we're using "1" for simplicity's sake.
+        return $this->createHeader(
+            array(1, 1, 1, self::$messageIndex++),
+            $record['formatted']
+        );
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new WildfireFormatter();
+    }
+
+    /**
+     * Wildfire initialization headers to enable message parsing
+     *
+     * @see createHeader()
+     * @see sendHeader()
+     * @return array
+     */
+    protected function getInitHeaders()
+    {
+        // Initial payload consists of required headers for Wildfire
+        return array_merge(
+            $this->createHeader(array('Protocol', 1), self::PROTOCOL_URI),
+            $this->createHeader(array(1, 'Structure', 1), self::STRUCTURE_URI),
+            $this->createHeader(array(1, 'Plugin', 1), self::PLUGIN_URI)
+        );
+    }
+
+    /**
+     * Send header string to the client
+     *
+     * @param string $header
+     * @param string $content
+     */
+    protected function sendHeader($header, $content)
+    {
+        if (!headers_sent() && self::$sendHeaders) {
+            header(sprintf('%s: %s', $header, $content));
+        }
+    }
+
+    /**
+     * Creates & sends header for a record, ensuring init headers have been sent prior
+     *
+     * @see sendHeader()
+     * @see sendInitHeaders()
+     * @param array $record
+     */
+    protected function write(array $record)
+    {
+        if (!self::$sendHeaders) {
+            return;
+        }
+
+        // WildFire-specific headers must be sent prior to any messages
+        if (!self::$initialized) {
+            self::$initialized = true;
+
+            self::$sendHeaders = $this->headersAccepted();
+            if (!self::$sendHeaders) {
+                return;
+            }
+
+            foreach ($this->getInitHeaders() as $header => $content) {
+                $this->sendHeader($header, $content);
+            }
+        }
+
+        $header = $this->createRecordHeader($record);
+        if (trim(current($header)) !== '') {
+            $this->sendHeader(key($header), current($header));
+        }
+    }
+
+    /**
+     * Verifies if the headers are accepted by the current user agent
+     *
+     * @return Boolean
+     */
+    protected function headersAccepted()
+    {
+        if (!empty($_SERVER['HTTP_USER_AGENT']) && preg_match('{\bFirePHP/\d+\.\d+\b}', $_SERVER['HTTP_USER_AGENT'])) {
+            return true;
+        }
+
+        return isset($_SERVER['HTTP_X_FIREPHP_VERSION']);
+    }
+
+    /**
+     * BC getter for the sendHeaders property that has been made static
+     */
+    public function __get($property)
+    {
+        if ('sendHeaders' !== $property) {
+            throw new \InvalidArgumentException('Undefined property '.$property);
+        }
+
+        return static::$sendHeaders;
+    }
+
+    /**
+     * BC setter for the sendHeaders property that has been made static
+     */
+    public function __set($property, $value)
+    {
+        if ('sendHeaders' !== $property) {
+            throw new \InvalidArgumentException('Undefined property '.$property);
+        }
+
+        static::$sendHeaders = $value;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FleepHookHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FleepHookHandler.php
new file mode 100644
index 0000000..c43c013
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FleepHookHandler.php
@@ -0,0 +1,126 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\LineFormatter;
+use Monolog\Logger;
+
+/**
+ * Sends logs to Fleep.io using Webhook integrations
+ *
+ * You'll need a Fleep.io account to use this handler.
+ *
+ * @see https://fleep.io/integrations/webhooks/ Fleep Webhooks Documentation
+ * @author Ando Roots <ando@sqroot.eu>
+ */
+class FleepHookHandler extends SocketHandler
+{
+    const FLEEP_HOST = 'fleep.io';
+
+    const FLEEP_HOOK_URI = '/hook/';
+
+    /**
+     * @var string Webhook token (specifies the conversation where logs are sent)
+     */
+    protected $token;
+
+    /**
+     * Construct a new Fleep.io Handler.
+     *
+     * For instructions on how to create a new web hook in your conversations
+     * see https://fleep.io/integrations/webhooks/
+     *
+     * @param  string                    $token  Webhook token
+     * @param  bool|int                  $level  The minimum logging level at which this handler will be triggered
+     * @param  bool                      $bubble Whether the messages that are handled can bubble up the stack or not
+     * @throws MissingExtensionException
+     */
+    public function __construct($token, $level = Logger::DEBUG, $bubble = true)
+    {
+        if (!extension_loaded('openssl')) {
+            throw new MissingExtensionException('The OpenSSL PHP extension is required to use the FleepHookHandler');
+        }
+
+        $this->token = $token;
+
+        $connectionString = 'ssl://' . self::FLEEP_HOST . ':443';
+        parent::__construct($connectionString, $level, $bubble);
+    }
+
+    /**
+     * Returns the default formatter to use with this handler
+     *
+     * Overloaded to remove empty context and extra arrays from the end of the log message.
+     *
+     * @return LineFormatter
+     */
+    protected function getDefaultFormatter()
+    {
+        return new LineFormatter(null, null, true, true);
+    }
+
+    /**
+     * Handles a log record
+     *
+     * @param array $record
+     */
+    public function write(array $record)
+    {
+        parent::write($record);
+        $this->closeSocket();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param  array  $record
+     * @return string
+     */
+    protected function generateDataStream($record)
+    {
+        $content = $this->buildContent($record);
+
+        return $this->buildHeader($content) . $content;
+    }
+
+    /**
+     * Builds the header of the API Call
+     *
+     * @param  string $content
+     * @return string
+     */
+    private function buildHeader($content)
+    {
+        $header = "POST " . self::FLEEP_HOOK_URI . $this->token . " HTTP/1.1\r\n";
+        $header .= "Host: " . self::FLEEP_HOST . "\r\n";
+        $header .= "Content-Type: application/x-www-form-urlencoded\r\n";
+        $header .= "Content-Length: " . strlen($content) . "\r\n";
+        $header .= "\r\n";
+
+        return $header;
+    }
+
+    /**
+     * Builds the body of API call
+     *
+     * @param  array  $record
+     * @return string
+     */
+    private function buildContent($record)
+    {
+        $dataArray = array(
+            'message' => $record['formatted'],
+        );
+
+        return http_build_query($dataArray);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FlowdockHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FlowdockHandler.php
new file mode 100644
index 0000000..dd9a361
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/FlowdockHandler.php
@@ -0,0 +1,127 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\FlowdockFormatter;
+use Monolog\Formatter\FormatterInterface;
+
+/**
+ * Sends notifications through the Flowdock push API
+ *
+ * This must be configured with a FlowdockFormatter instance via setFormatter()
+ *
+ * Notes:
+ * API token - Flowdock API token
+ *
+ * @author Dominik Liebler <liebler.dominik@gmail.com>
+ * @see https://www.flowdock.com/api/push
+ */
+class FlowdockHandler extends SocketHandler
+{
+    /**
+     * @var string
+     */
+    protected $apiToken;
+
+    /**
+     * @param string   $apiToken
+     * @param bool|int $level    The minimum logging level at which this handler will be triggered
+     * @param bool     $bubble   Whether the messages that are handled can bubble up the stack or not
+     *
+     * @throws MissingExtensionException if OpenSSL is missing
+     */
+    public function __construct($apiToken, $level = Logger::DEBUG, $bubble = true)
+    {
+        if (!extension_loaded('openssl')) {
+            throw new MissingExtensionException('The OpenSSL PHP extension is required to use the FlowdockHandler');
+        }
+
+        parent::__construct('ssl://api.flowdock.com:443', $level, $bubble);
+        $this->apiToken = $apiToken;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setFormatter(FormatterInterface $formatter)
+    {
+        if (!$formatter instanceof FlowdockFormatter) {
+            throw new \InvalidArgumentException('The FlowdockHandler requires an instance of Monolog\Formatter\FlowdockFormatter to function correctly');
+        }
+
+        return parent::setFormatter($formatter);
+    }
+
+    /**
+     * Gets the default formatter.
+     *
+     * @return FormatterInterface
+     */
+    protected function getDefaultFormatter()
+    {
+        throw new \InvalidArgumentException('The FlowdockHandler must be configured (via setFormatter) with an instance of Monolog\Formatter\FlowdockFormatter to function correctly');
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param array $record
+     */
+    protected function write(array $record)
+    {
+        parent::write($record);
+
+        $this->closeSocket();
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param  array  $record
+     * @return string
+     */
+    protected function generateDataStream($record)
+    {
+        $content = $this->buildContent($record);
+
+        return $this->buildHeader($content) . $content;
+    }
+
+    /**
+     * Builds the body of API call
+     *
+     * @param  array  $record
+     * @return string
+     */
+    private function buildContent($record)
+    {
+        return json_encode($record['formatted']['flowdock']);
+    }
+
+    /**
+     * Builds the header of the API Call
+     *
+     * @param  string $content
+     * @return string
+     */
+    private function buildHeader($content)
+    {
+        $header = "POST /v1/messages/team_inbox/" . $this->apiToken . " HTTP/1.1\r\n";
+        $header .= "Host: api.flowdock.com\r\n";
+        $header .= "Content-Type: application/json\r\n";
+        $header .= "Content-Length: " . strlen($content) . "\r\n";
+        $header .= "\r\n";
+
+        return $header;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/GelfHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/GelfHandler.php
new file mode 100644
index 0000000..d3847d8
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/GelfHandler.php
@@ -0,0 +1,73 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Gelf\IMessagePublisher;
+use Gelf\PublisherInterface;
+use Gelf\Publisher;
+use InvalidArgumentException;
+use Monolog\Logger;
+use Monolog\Formatter\GelfMessageFormatter;
+
+/**
+ * Handler to send messages to a Graylog2 (http://www.graylog2.org) server
+ *
+ * @author Matt Lehner <mlehner@gmail.com>
+ * @author Benjamin Zikarsky <benjamin@zikarsky.de>
+ */
+class GelfHandler extends AbstractProcessingHandler
+{
+    /**
+     * @var Publisher the publisher object that sends the message to the server
+     */
+    protected $publisher;
+
+    /**
+     * @param PublisherInterface|IMessagePublisher|Publisher $publisher a publisher object
+     * @param int                                            $level     The minimum logging level at which this handler will be triggered
+     * @param bool                                           $bubble    Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct($publisher, $level = Logger::DEBUG, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+
+        if (!$publisher instanceof Publisher && !$publisher instanceof IMessagePublisher && !$publisher instanceof PublisherInterface) {
+            throw new InvalidArgumentException('Invalid publisher, expected a Gelf\Publisher, Gelf\IMessagePublisher or Gelf\PublisherInterface instance');
+        }
+
+        $this->publisher = $publisher;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        $this->publisher = null;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        $this->publisher->publish($record['formatted']);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new GelfMessageFormatter();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/GroupHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/GroupHandler.php
new file mode 100644
index 0000000..663f5a9
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/GroupHandler.php
@@ -0,0 +1,104 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\FormatterInterface;
+
+/**
+ * Forwards records to multiple handlers
+ *
+ * @author Lenar Lõhmus <lenar@city.ee>
+ */
+class GroupHandler extends AbstractHandler
+{
+    protected $handlers;
+
+    /**
+     * @param array   $handlers Array of Handlers.
+     * @param Boolean $bubble   Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct(array $handlers, $bubble = true)
+    {
+        foreach ($handlers as $handler) {
+            if (!$handler instanceof HandlerInterface) {
+                throw new \InvalidArgumentException('The first argument of the GroupHandler must be an array of HandlerInterface instances.');
+            }
+        }
+
+        $this->handlers = $handlers;
+        $this->bubble = $bubble;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isHandling(array $record)
+    {
+        foreach ($this->handlers as $handler) {
+            if ($handler->isHandling($record)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(array $record)
+    {
+        if ($this->processors) {
+            foreach ($this->processors as $processor) {
+                $record = call_user_func($processor, $record);
+            }
+        }
+
+        foreach ($this->handlers as $handler) {
+            $handler->handle($record);
+        }
+
+        return false === $this->bubble;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        if ($this->processors) {
+            $processed = array();
+            foreach ($records as $record) {
+                foreach ($this->processors as $processor) {
+                    $processed[] = call_user_func($processor, $record);
+                }
+            }
+            $records = $processed;
+        }
+
+        foreach ($this->handlers as $handler) {
+            $handler->handleBatch($records);
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setFormatter(FormatterInterface $formatter)
+    {
+        foreach ($this->handlers as $handler) {
+            $handler->setFormatter($formatter);
+        }
+
+        return $this;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/HandlerInterface.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/HandlerInterface.php
new file mode 100644
index 0000000..d920c4b
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/HandlerInterface.php
@@ -0,0 +1,90 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\FormatterInterface;
+
+/**
+ * Interface that all Monolog Handlers must implement
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+interface HandlerInterface
+{
+    /**
+     * Checks whether the given record will be handled by this handler.
+     *
+     * This is mostly done for performance reasons, to avoid calling processors for nothing.
+     *
+     * Handlers should still check the record levels within handle(), returning false in isHandling()
+     * is no guarantee that handle() will not be called, and isHandling() might not be called
+     * for a given record.
+     *
+     * @param array $record Partial log record containing only a level key
+     *
+     * @return Boolean
+     */
+    public function isHandling(array $record);
+
+    /**
+     * Handles a record.
+     *
+     * All records may be passed to this method, and the handler should discard
+     * those that it does not want to handle.
+     *
+     * The return value of this function controls the bubbling process of the handler stack.
+     * Unless the bubbling is interrupted (by returning true), the Logger class will keep on
+     * calling further handlers in the stack with a given log record.
+     *
+     * @param  array   $record The record to handle
+     * @return Boolean true means that this handler handled the record, and that bubbling is not permitted.
+     *                        false means the record was either not processed or that this handler allows bubbling.
+     */
+    public function handle(array $record);
+
+    /**
+     * Handles a set of records at once.
+     *
+     * @param array $records The records to handle (an array of record arrays)
+     */
+    public function handleBatch(array $records);
+
+    /**
+     * Adds a processor in the stack.
+     *
+     * @param  callable $callback
+     * @return self
+     */
+    public function pushProcessor($callback);
+
+    /**
+     * Removes the processor on top of the stack and returns it.
+     *
+     * @return callable
+     */
+    public function popProcessor();
+
+    /**
+     * Sets the formatter.
+     *
+     * @param  FormatterInterface $formatter
+     * @return self
+     */
+    public function setFormatter(FormatterInterface $formatter);
+
+    /**
+     * Gets the formatter.
+     *
+     * @return FormatterInterface
+     */
+    public function getFormatter();
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/HandlerWrapper.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/HandlerWrapper.php
new file mode 100644
index 0000000..e540d80
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/HandlerWrapper.php
@@ -0,0 +1,108 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\FormatterInterface;
+
+/**
+ * This simple wrapper class can be used to extend handlers functionality.
+ *
+ * Example: A custom filtering that can be applied to any handler.
+ *
+ * Inherit from this class and override handle() like this:
+ *
+ *   public function handle(array $record)
+ *   {
+ *        if ($record meets certain conditions) {
+ *            return false;
+ *        }
+ *        return $this->handler->handle($record);
+ *   }
+ *
+ * @author Alexey Karapetov <alexey@karapetov.com>
+ */
+class HandlerWrapper implements HandlerInterface
+{
+    /**
+     * @var HandlerInterface
+     */
+    protected $handler;
+
+    /**
+     * HandlerWrapper constructor.
+     * @param HandlerInterface $handler
+     */
+    public function __construct(HandlerInterface $handler)
+    {
+        $this->handler = $handler;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isHandling(array $record)
+    {
+        return $this->handler->isHandling($record);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(array $record)
+    {
+        return $this->handler->handle($record);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        return $this->handler->handleBatch($records);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function pushProcessor($callback)
+    {
+        $this->handler->pushProcessor($callback);
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function popProcessor()
+    {
+        return $this->handler->popProcessor();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setFormatter(FormatterInterface $formatter)
+    {
+        $this->handler->setFormatter($formatter);
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFormatter()
+    {
+        return $this->handler->getFormatter();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/HipChatHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/HipChatHandler.php
new file mode 100644
index 0000000..73049f3
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/HipChatHandler.php
@@ -0,0 +1,350 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Sends notifications through the hipchat api to a hipchat room
+ *
+ * Notes:
+ * API token - HipChat API token
+ * Room      - HipChat Room Id or name, where messages are sent
+ * Name      - Name used to send the message (from)
+ * notify    - Should the message trigger a notification in the clients
+ * version   - The API version to use (HipChatHandler::API_V1 | HipChatHandler::API_V2)
+ *
+ * @author Rafael Dohms <rafael@doh.ms>
+ * @see    https://www.hipchat.com/docs/api
+ */
+class HipChatHandler extends SocketHandler
+{
+    /**
+     * Use API version 1
+     */
+    const API_V1 = 'v1';
+
+    /**
+     * Use API version v2
+     */
+    const API_V2 = 'v2';
+
+    /**
+     * The maximum allowed length for the name used in the "from" field.
+     */
+    const MAXIMUM_NAME_LENGTH = 15;
+
+    /**
+     * The maximum allowed length for the message.
+     */
+    const MAXIMUM_MESSAGE_LENGTH = 9500;
+
+    /**
+     * @var string
+     */
+    private $token;
+
+    /**
+     * @var string
+     */
+    private $room;
+
+    /**
+     * @var string
+     */
+    private $name;
+
+    /**
+     * @var bool
+     */
+    private $notify;
+
+    /**
+     * @var string
+     */
+    private $format;
+
+    /**
+     * @var string
+     */
+    private $host;
+
+    /**
+     * @var string
+     */
+    private $version;
+
+    /**
+     * @param string $token   HipChat API Token
+     * @param string $room    The room that should be alerted of the message (Id or Name)
+     * @param string $name    Name used in the "from" field.
+     * @param bool   $notify  Trigger a notification in clients or not
+     * @param int    $level   The minimum logging level at which this handler will be triggered
+     * @param bool   $bubble  Whether the messages that are handled can bubble up the stack or not
+     * @param bool   $useSSL  Whether to connect via SSL.
+     * @param string $format  The format of the messages (default to text, can be set to html if you have html in the messages)
+     * @param string $host    The HipChat server hostname.
+     * @param string $version The HipChat API version (default HipChatHandler::API_V1)
+     */
+    public function __construct($token, $room, $name = 'Monolog', $notify = false, $level = Logger::CRITICAL, $bubble = true, $useSSL = true, $format = 'text', $host = 'api.hipchat.com', $version = self::API_V1)
+    {
+        if ($version == self::API_V1 && !$this->validateStringLength($name, static::MAXIMUM_NAME_LENGTH)) {
+            throw new \InvalidArgumentException('The supplied name is too long. HipChat\'s v1 API supports names up to 15 UTF-8 characters.');
+        }
+
+        $connectionString = $useSSL ? 'ssl://'.$host.':443' : $host.':80';
+        parent::__construct($connectionString, $level, $bubble);
+
+        $this->token = $token;
+        $this->name = $name;
+        $this->notify = $notify;
+        $this->room = $room;
+        $this->format = $format;
+        $this->host = $host;
+        $this->version = $version;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param  array  $record
+     * @return string
+     */
+    protected function generateDataStream($record)
+    {
+        $content = $this->buildContent($record);
+
+        return $this->buildHeader($content) . $content;
+    }
+
+    /**
+     * Builds the body of API call
+     *
+     * @param  array  $record
+     * @return string
+     */
+    private function buildContent($record)
+    {
+        $dataArray = array(
+            'notify' => $this->version == self::API_V1 ?
+                ($this->notify ? 1 : 0) :
+                ($this->notify ? 'true' : 'false'),
+            'message' => $record['formatted'],
+            'message_format' => $this->format,
+            'color' => $this->getAlertColor($record['level']),
+        );
+
+        if (!$this->validateStringLength($dataArray['message'], static::MAXIMUM_MESSAGE_LENGTH)) {
+            if (function_exists('mb_substr')) {
+                $dataArray['message'] = mb_substr($dataArray['message'], 0, static::MAXIMUM_MESSAGE_LENGTH).' [truncated]';
+            } else {
+                $dataArray['message'] = substr($dataArray['message'], 0, static::MAXIMUM_MESSAGE_LENGTH).' [truncated]';
+            }
+        }
+
+        // if we are using the legacy API then we need to send some additional information
+        if ($this->version == self::API_V1) {
+            $dataArray['room_id'] = $this->room;
+        }
+
+        // append the sender name if it is set
+        // always append it if we use the v1 api (it is required in v1)
+        if ($this->version == self::API_V1 || $this->name !== null) {
+            $dataArray['from'] = (string) $this->name;
+        }
+
+        return http_build_query($dataArray);
+    }
+
+    /**
+     * Builds the header of the API Call
+     *
+     * @param  string $content
+     * @return string
+     */
+    private function buildHeader($content)
+    {
+        if ($this->version == self::API_V1) {
+            $header = "POST /v1/rooms/message?format=json&auth_token={$this->token} HTTP/1.1\r\n";
+        } else {
+            // needed for rooms with special (spaces, etc) characters in the name
+            $room = rawurlencode($this->room);
+            $header = "POST /v2/room/{$room}/notification?auth_token={$this->token} HTTP/1.1\r\n";
+        }
+
+        $header .= "Host: {$this->host}\r\n";
+        $header .= "Content-Type: application/x-www-form-urlencoded\r\n";
+        $header .= "Content-Length: " . strlen($content) . "\r\n";
+        $header .= "\r\n";
+
+        return $header;
+    }
+
+    /**
+     * Assigns a color to each level of log records.
+     *
+     * @param  int    $level
+     * @return string
+     */
+    protected function getAlertColor($level)
+    {
+        switch (true) {
+            case $level >= Logger::ERROR:
+                return 'red';
+            case $level >= Logger::WARNING:
+                return 'yellow';
+            case $level >= Logger::INFO:
+                return 'green';
+            case $level == Logger::DEBUG:
+                return 'gray';
+            default:
+                return 'yellow';
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param array $record
+     */
+    protected function write(array $record)
+    {
+        parent::write($record);
+        $this->closeSocket();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        if (count($records) == 0) {
+            return true;
+        }
+
+        $batchRecords = $this->combineRecords($records);
+
+        $handled = false;
+        foreach ($batchRecords as $batchRecord) {
+            if ($this->isHandling($batchRecord)) {
+                $this->write($batchRecord);
+                $handled = true;
+            }
+        }
+
+        if (!$handled) {
+            return false;
+        }
+
+        return false === $this->bubble;
+    }
+
+    /**
+     * Combines multiple records into one. Error level of the combined record
+     * will be the highest level from the given records. Datetime will be taken
+     * from the first record.
+     *
+     * @param $records
+     * @return array
+     */
+    private function combineRecords($records)
+    {
+        $batchRecord = null;
+        $batchRecords = array();
+        $messages = array();
+        $formattedMessages = array();
+        $level = 0;
+        $levelName = null;
+        $datetime = null;
+
+        foreach ($records as $record) {
+            $record = $this->processRecord($record);
+
+            if ($record['level'] > $level) {
+                $level = $record['level'];
+                $levelName = $record['level_name'];
+            }
+
+            if (null === $datetime) {
+                $datetime = $record['datetime'];
+            }
+
+            $messages[] = $record['message'];
+            $messageStr = implode(PHP_EOL, $messages);
+            $formattedMessages[] = $this->getFormatter()->format($record);
+            $formattedMessageStr = implode('', $formattedMessages);
+
+            $batchRecord = array(
+                'message'   => $messageStr,
+                'formatted' => $formattedMessageStr,
+                'context'   => array(),
+                'extra'     => array(),
+            );
+
+            if (!$this->validateStringLength($batchRecord['formatted'], static::MAXIMUM_MESSAGE_LENGTH)) {
+                // Pop the last message and implode the remaining messages
+                $lastMessage = array_pop($messages);
+                $lastFormattedMessage = array_pop($formattedMessages);
+                $batchRecord['message'] = implode(PHP_EOL, $messages);
+                $batchRecord['formatted'] = implode('', $formattedMessages);
+
+                $batchRecords[] = $batchRecord;
+                $messages = array($lastMessage);
+                $formattedMessages = array($lastFormattedMessage);
+
+                $batchRecord = null;
+            }
+        }
+
+        if (null !== $batchRecord) {
+            $batchRecords[] = $batchRecord;
+        }
+
+        // Set the max level and datetime for all records
+        foreach ($batchRecords as &$batchRecord) {
+            $batchRecord = array_merge(
+                $batchRecord,
+                array(
+                    'level'      => $level,
+                    'level_name' => $levelName,
+                    'datetime'   => $datetime,
+                )
+            );
+        }
+
+        return $batchRecords;
+    }
+
+    /**
+     * Validates the length of a string.
+     *
+     * If the `mb_strlen()` function is available, it will use that, as HipChat
+     * allows UTF-8 characters. Otherwise, it will fall back to `strlen()`.
+     *
+     * Note that this might cause false failures in the specific case of using
+     * a valid name with less than 16 characters, but 16 or more bytes, on a
+     * system where `mb_strlen()` is unavailable.
+     *
+     * @param string $str
+     * @param int    $length
+     *
+     * @return bool
+     */
+    private function validateStringLength($str, $length)
+    {
+        if (function_exists('mb_strlen')) {
+            return (mb_strlen($str) <= $length);
+        }
+
+        return (strlen($str) <= $length);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/IFTTTHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/IFTTTHandler.php
new file mode 100644
index 0000000..d60a3c8
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/IFTTTHandler.php
@@ -0,0 +1,69 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * IFTTTHandler uses cURL to trigger IFTTT Maker actions
+ *
+ * Register a secret key and trigger/event name at https://ifttt.com/maker
+ *
+ * value1 will be the channel from monolog's Logger constructor,
+ * value2 will be the level name (ERROR, WARNING, ..)
+ * value3 will be the log record's message
+ *
+ * @author Nehal Patel <nehal@nehalpatel.me>
+ */
+class IFTTTHandler extends AbstractProcessingHandler
+{
+    private $eventName;
+    private $secretKey;
+
+    /**
+     * @param string  $eventName The name of the IFTTT Maker event that should be triggered
+     * @param string  $secretKey A valid IFTTT secret key
+     * @param int     $level     The minimum logging level at which this handler will be triggered
+     * @param Boolean $bubble    Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct($eventName, $secretKey, $level = Logger::ERROR, $bubble = true)
+    {
+        $this->eventName = $eventName;
+        $this->secretKey = $secretKey;
+
+        parent::__construct($level, $bubble);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function write(array $record)
+    {
+        $postData = array(
+            "value1" => $record["channel"],
+            "value2" => $record["level_name"],
+            "value3" => $record["message"],
+        );
+        $postString = json_encode($postData);
+
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, "https://maker.ifttt.com/trigger/" . $this->eventName . "/with/key/" . $this->secretKey);
+        curl_setopt($ch, CURLOPT_POST, true);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, $postString);
+        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
+            "Content-Type: application/json",
+        ));
+
+        Curl\Util::execute($ch);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/LogEntriesHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/LogEntriesHandler.php
new file mode 100644
index 0000000..494c605
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/LogEntriesHandler.php
@@ -0,0 +1,55 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * @author Robert Kaufmann III <rok3@rok3.me>
+ */
+class LogEntriesHandler extends SocketHandler
+{
+    /**
+     * @var string
+     */
+    protected $logToken;
+
+    /**
+     * @param string $token  Log token supplied by LogEntries
+     * @param bool   $useSSL Whether or not SSL encryption should be used.
+     * @param int    $level  The minimum logging level to trigger this handler
+     * @param bool   $bubble Whether or not messages that are handled should bubble up the stack.
+     *
+     * @throws MissingExtensionException If SSL encryption is set to true and OpenSSL is missing
+     */
+    public function __construct($token, $useSSL = true, $level = Logger::DEBUG, $bubble = true)
+    {
+        if ($useSSL && !extension_loaded('openssl')) {
+            throw new MissingExtensionException('The OpenSSL PHP plugin is required to use SSL encrypted connection for LogEntriesHandler');
+        }
+
+        $endpoint = $useSSL ? 'ssl://data.logentries.com:443' : 'data.logentries.com:80';
+        parent::__construct($endpoint, $level, $bubble);
+        $this->logToken = $token;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param  array  $record
+     * @return string
+     */
+    protected function generateDataStream($record)
+    {
+        return $this->logToken . ' ' . $record['formatted'];
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/LogglyHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/LogglyHandler.php
new file mode 100644
index 0000000..bcd62e1
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/LogglyHandler.php
@@ -0,0 +1,102 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\LogglyFormatter;
+
+/**
+ * Sends errors to Loggly.
+ *
+ * @author Przemek Sobstel <przemek@sobstel.org>
+ * @author Adam Pancutt <adam@pancutt.com>
+ * @author Gregory Barchard <gregory@barchard.net>
+ */
+class LogglyHandler extends AbstractProcessingHandler
+{
+    const HOST = 'logs-01.loggly.com';
+    const ENDPOINT_SINGLE = 'inputs';
+    const ENDPOINT_BATCH = 'bulk';
+
+    protected $token;
+
+    protected $tag = array();
+
+    public function __construct($token, $level = Logger::DEBUG, $bubble = true)
+    {
+        if (!extension_loaded('curl')) {
+            throw new \LogicException('The curl extension is needed to use the LogglyHandler');
+        }
+
+        $this->token = $token;
+
+        parent::__construct($level, $bubble);
+    }
+
+    public function setTag($tag)
+    {
+        $tag = !empty($tag) ? $tag : array();
+        $this->tag = is_array($tag) ? $tag : array($tag);
+    }
+
+    public function addTag($tag)
+    {
+        if (!empty($tag)) {
+            $tag = is_array($tag) ? $tag : array($tag);
+            $this->tag = array_unique(array_merge($this->tag, $tag));
+        }
+    }
+
+    protected function write(array $record)
+    {
+        $this->send($record["formatted"], self::ENDPOINT_SINGLE);
+    }
+
+    public function handleBatch(array $records)
+    {
+        $level = $this->level;
+
+        $records = array_filter($records, function ($record) use ($level) {
+            return ($record['level'] >= $level);
+        });
+
+        if ($records) {
+            $this->send($this->getFormatter()->formatBatch($records), self::ENDPOINT_BATCH);
+        }
+    }
+
+    protected function send($data, $endpoint)
+    {
+        $url = sprintf("https://%s/%s/%s/", self::HOST, $endpoint, $this->token);
+
+        $headers = array('Content-Type: application/json');
+
+        if (!empty($this->tag)) {
+            $headers[] = 'X-LOGGLY-TAG: '.implode(',', $this->tag);
+        }
+
+        $ch = curl_init();
+
+        curl_setopt($ch, CURLOPT_URL, $url);
+        curl_setopt($ch, CURLOPT_POST, true);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
+        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+
+        Curl\Util::execute($ch);
+    }
+
+    protected function getDefaultFormatter()
+    {
+        return new LogglyFormatter();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MailHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MailHandler.php
new file mode 100644
index 0000000..9e23283
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MailHandler.php
@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+/**
+ * Base class for all mail handlers
+ *
+ * @author Gyula Sallai
+ */
+abstract class MailHandler extends AbstractProcessingHandler
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        $messages = array();
+
+        foreach ($records as $record) {
+            if ($record['level'] < $this->level) {
+                continue;
+            }
+            $messages[] = $this->processRecord($record);
+        }
+
+        if (!empty($messages)) {
+            $this->send((string) $this->getFormatter()->formatBatch($messages), $messages);
+        }
+    }
+
+    /**
+     * Send a mail with the given content
+     *
+     * @param string $content formatted email body to be sent
+     * @param array  $records the array of log records that formed this content
+     */
+    abstract protected function send($content, array $records);
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        $this->send((string) $record['formatted'], array($record));
+    }
+
+    protected function getHighestRecord(array $records)
+    {
+        $highestRecord = null;
+        foreach ($records as $record) {
+            if ($highestRecord === null || $highestRecord['level'] < $record['level']) {
+                $highestRecord = $record;
+            }
+        }
+
+        return $highestRecord;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MandrillHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MandrillHandler.php
new file mode 100644
index 0000000..ab95924
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MandrillHandler.php
@@ -0,0 +1,68 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * MandrillHandler uses cURL to send the emails to the Mandrill API
+ *
+ * @author Adam Nicholson <adamnicholson10@gmail.com>
+ */
+class MandrillHandler extends MailHandler
+{
+    protected $message;
+    protected $apiKey;
+
+    /**
+     * @param string                  $apiKey  A valid Mandrill API key
+     * @param callable|\Swift_Message $message An example message for real messages, only the body will be replaced
+     * @param int                     $level   The minimum logging level at which this handler will be triggered
+     * @param Boolean                 $bubble  Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct($apiKey, $message, $level = Logger::ERROR, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+
+        if (!$message instanceof \Swift_Message && is_callable($message)) {
+            $message = call_user_func($message);
+        }
+        if (!$message instanceof \Swift_Message) {
+            throw new \InvalidArgumentException('You must provide either a Swift_Message instance or a callable returning it');
+        }
+        $this->message = $message;
+        $this->apiKey = $apiKey;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function send($content, array $records)
+    {
+        $message = clone $this->message;
+        $message->setBody($content);
+        $message->setDate(time());
+
+        $ch = curl_init();
+
+        curl_setopt($ch, CURLOPT_URL, 'https://mandrillapp.com/api/1.0/messages/send-raw.json');
+        curl_setopt($ch, CURLOPT_POST, 1);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query(array(
+            'key' => $this->apiKey,
+            'raw_message' => (string) $message,
+            'async' => false,
+        )));
+
+        Curl\Util::execute($ch);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MissingExtensionException.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MissingExtensionException.php
new file mode 100644
index 0000000..4724a7e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MissingExtensionException.php
@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+/**
+ * Exception can be thrown if an extension for an handler is missing
+ *
+ * @author  Christian Bergau <cbergau86@gmail.com>
+ */
+class MissingExtensionException extends \Exception
+{
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MongoDBHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MongoDBHandler.php
new file mode 100644
index 0000000..56fe755
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/MongoDBHandler.php
@@ -0,0 +1,59 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\NormalizerFormatter;
+
+/**
+ * Logs to a MongoDB database.
+ *
+ * usage example:
+ *
+ *   $log = new Logger('application');
+ *   $mongodb = new MongoDBHandler(new \Mongo("mongodb://localhost:27017"), "logs", "prod");
+ *   $log->pushHandler($mongodb);
+ *
+ * @author Thomas Tourlourat <thomas@tourlourat.com>
+ */
+class MongoDBHandler extends AbstractProcessingHandler
+{
+    protected $mongoCollection;
+
+    public function __construct($mongo, $database, $collection, $level = Logger::DEBUG, $bubble = true)
+    {
+        if (!($mongo instanceof \MongoClient || $mongo instanceof \Mongo || $mongo instanceof \MongoDB\Client)) {
+            throw new \InvalidArgumentException('MongoClient, Mongo or MongoDB\Client instance required');
+        }
+
+        $this->mongoCollection = $mongo->selectCollection($database, $collection);
+
+        parent::__construct($level, $bubble);
+    }
+
+    protected function write(array $record)
+    {
+        if ($this->mongoCollection instanceof \MongoDB\Collection) {
+            $this->mongoCollection->insertOne($record["formatted"]);
+        } else {
+            $this->mongoCollection->save($record["formatted"]);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new NormalizerFormatter();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/NativeMailerHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/NativeMailerHandler.php
new file mode 100644
index 0000000..d7807fd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/NativeMailerHandler.php
@@ -0,0 +1,185 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\LineFormatter;
+
+/**
+ * NativeMailerHandler uses the mail() function to send the emails
+ *
+ * @author Christophe Coevoet <stof@notk.org>
+ * @author Mark Garrett <mark@moderndeveloperllc.com>
+ */
+class NativeMailerHandler extends MailHandler
+{
+    /**
+     * The email addresses to which the message will be sent
+     * @var array
+     */
+    protected $to;
+
+    /**
+     * The subject of the email
+     * @var string
+     */
+    protected $subject;
+
+    /**
+     * Optional headers for the message
+     * @var array
+     */
+    protected $headers = array();
+
+    /**
+     * Optional parameters for the message
+     * @var array
+     */
+    protected $parameters = array();
+
+    /**
+     * The wordwrap length for the message
+     * @var int
+     */
+    protected $maxColumnWidth;
+
+    /**
+     * The Content-type for the message
+     * @var string
+     */
+    protected $contentType = 'text/plain';
+
+    /**
+     * The encoding for the message
+     * @var string
+     */
+    protected $encoding = 'utf-8';
+
+    /**
+     * @param string|array $to             The receiver of the mail
+     * @param string       $subject        The subject of the mail
+     * @param string       $from           The sender of the mail
+     * @param int          $level          The minimum logging level at which this handler will be triggered
+     * @param bool         $bubble         Whether the messages that are handled can bubble up the stack or not
+     * @param int          $maxColumnWidth The maximum column width that the message lines will have
+     */
+    public function __construct($to, $subject, $from, $level = Logger::ERROR, $bubble = true, $maxColumnWidth = 70)
+    {
+        parent::__construct($level, $bubble);
+        $this->to = is_array($to) ? $to : array($to);
+        $this->subject = $subject;
+        $this->addHeader(sprintf('From: %s', $from));
+        $this->maxColumnWidth = $maxColumnWidth;
+    }
+
+    /**
+     * Add headers to the message
+     *
+     * @param  string|array $headers Custom added headers
+     * @return self
+     */
+    public function addHeader($headers)
+    {
+        foreach ((array) $headers as $header) {
+            if (strpos($header, "\n") !== false || strpos($header, "\r") !== false) {
+                throw new \InvalidArgumentException('Headers can not contain newline characters for security reasons');
+            }
+            $this->headers[] = $header;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Add parameters to the message
+     *
+     * @param  string|array $parameters Custom added parameters
+     * @return self
+     */
+    public function addParameter($parameters)
+    {
+        $this->parameters = array_merge($this->parameters, (array) $parameters);
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function send($content, array $records)
+    {
+        $content = wordwrap($content, $this->maxColumnWidth);
+        $headers = ltrim(implode("\r\n", $this->headers) . "\r\n", "\r\n");
+        $headers .= 'Content-type: ' . $this->getContentType() . '; charset=' . $this->getEncoding() . "\r\n";
+        if ($this->getContentType() == 'text/html' && false === strpos($headers, 'MIME-Version:')) {
+            $headers .= 'MIME-Version: 1.0' . "\r\n";
+        }
+
+        $subject = $this->subject;
+        if ($records) {
+            $subjectFormatter = new LineFormatter($this->subject);
+            $subject = $subjectFormatter->format($this->getHighestRecord($records));
+        }
+
+        $parameters = implode(' ', $this->parameters);
+        foreach ($this->to as $to) {
+            mail($to, $subject, $content, $headers, $parameters);
+        }
+    }
+
+    /**
+     * @return string $contentType
+     */
+    public function getContentType()
+    {
+        return $this->contentType;
+    }
+
+    /**
+     * @return string $encoding
+     */
+    public function getEncoding()
+    {
+        return $this->encoding;
+    }
+
+    /**
+     * @param  string $contentType The content type of the email - Defaults to text/plain. Use text/html for HTML
+     *                             messages.
+     * @return self
+     */
+    public function setContentType($contentType)
+    {
+        if (strpos($contentType, "\n") !== false || strpos($contentType, "\r") !== false) {
+            throw new \InvalidArgumentException('The content type can not contain newline characters to prevent email header injection');
+        }
+
+        $this->contentType = $contentType;
+
+        return $this;
+    }
+
+    /**
+     * @param  string $encoding
+     * @return self
+     */
+    public function setEncoding($encoding)
+    {
+        if (strpos($encoding, "\n") !== false || strpos($encoding, "\r") !== false) {
+            throw new \InvalidArgumentException('The encoding can not contain newline characters to prevent email header injection');
+        }
+
+        $this->encoding = $encoding;
+
+        return $this;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/NewRelicHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/NewRelicHandler.php
new file mode 100644
index 0000000..6718e9e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/NewRelicHandler.php
@@ -0,0 +1,202 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\NormalizerFormatter;
+
+/**
+ * Class to record a log on a NewRelic application.
+ * Enabling New Relic High Security mode may prevent capture of useful information.
+ *
+ * @see https://docs.newrelic.com/docs/agents/php-agent
+ * @see https://docs.newrelic.com/docs/accounts-partnerships/accounts/security/high-security
+ */
+class NewRelicHandler extends AbstractProcessingHandler
+{
+    /**
+     * Name of the New Relic application that will receive logs from this handler.
+     *
+     * @var string
+     */
+    protected $appName;
+
+    /**
+     * Name of the current transaction
+     *
+     * @var string
+     */
+    protected $transactionName;
+
+    /**
+     * Some context and extra data is passed into the handler as arrays of values. Do we send them as is
+     * (useful if we are using the API), or explode them for display on the NewRelic RPM website?
+     *
+     * @var bool
+     */
+    protected $explodeArrays;
+
+    /**
+     * {@inheritDoc}
+     *
+     * @param string $appName
+     * @param bool   $explodeArrays
+     * @param string $transactionName
+     */
+    public function __construct(
+        $level = Logger::ERROR,
+        $bubble = true,
+        $appName = null,
+        $explodeArrays = false,
+        $transactionName = null
+    ) {
+        parent::__construct($level, $bubble);
+
+        $this->appName       = $appName;
+        $this->explodeArrays = $explodeArrays;
+        $this->transactionName = $transactionName;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function write(array $record)
+    {
+        if (!$this->isNewRelicEnabled()) {
+            throw new MissingExtensionException('The newrelic PHP extension is required to use the NewRelicHandler');
+        }
+
+        if ($appName = $this->getAppName($record['context'])) {
+            $this->setNewRelicAppName($appName);
+        }
+
+        if ($transactionName = $this->getTransactionName($record['context'])) {
+            $this->setNewRelicTransactionName($transactionName);
+            unset($record['formatted']['context']['transaction_name']);
+        }
+
+        if (isset($record['context']['exception']) && $record['context']['exception'] instanceof \Exception) {
+            newrelic_notice_error($record['message'], $record['context']['exception']);
+            unset($record['formatted']['context']['exception']);
+        } else {
+            newrelic_notice_error($record['message']);
+        }
+
+        if (isset($record['formatted']['context']) && is_array($record['formatted']['context'])) {
+            foreach ($record['formatted']['context'] as $key => $parameter) {
+                if (is_array($parameter) && $this->explodeArrays) {
+                    foreach ($parameter as $paramKey => $paramValue) {
+                        $this->setNewRelicParameter('context_' . $key . '_' . $paramKey, $paramValue);
+                    }
+                } else {
+                    $this->setNewRelicParameter('context_' . $key, $parameter);
+                }
+            }
+        }
+
+        if (isset($record['formatted']['extra']) && is_array($record['formatted']['extra'])) {
+            foreach ($record['formatted']['extra'] as $key => $parameter) {
+                if (is_array($parameter) && $this->explodeArrays) {
+                    foreach ($parameter as $paramKey => $paramValue) {
+                        $this->setNewRelicParameter('extra_' . $key . '_' . $paramKey, $paramValue);
+                    }
+                } else {
+                    $this->setNewRelicParameter('extra_' . $key, $parameter);
+                }
+            }
+        }
+    }
+
+    /**
+     * Checks whether the NewRelic extension is enabled in the system.
+     *
+     * @return bool
+     */
+    protected function isNewRelicEnabled()
+    {
+        return extension_loaded('newrelic');
+    }
+
+    /**
+     * Returns the appname where this log should be sent. Each log can override the default appname, set in this
+     * handler's constructor, by providing the appname in it's context.
+     *
+     * @param  array       $context
+     * @return null|string
+     */
+    protected function getAppName(array $context)
+    {
+        if (isset($context['appname'])) {
+            return $context['appname'];
+        }
+
+        return $this->appName;
+    }
+
+    /**
+     * Returns the name of the current transaction. Each log can override the default transaction name, set in this
+     * handler's constructor, by providing the transaction_name in it's context
+     *
+     * @param array $context
+     *
+     * @return null|string
+     */
+    protected function getTransactionName(array $context)
+    {
+        if (isset($context['transaction_name'])) {
+            return $context['transaction_name'];
+        }
+
+        return $this->transactionName;
+    }
+
+    /**
+     * Sets the NewRelic application that should receive this log.
+     *
+     * @param string $appName
+     */
+    protected function setNewRelicAppName($appName)
+    {
+        newrelic_set_appname($appName);
+    }
+
+    /**
+     * Overwrites the name of the current transaction
+     *
+     * @param string $transactionName
+     */
+    protected function setNewRelicTransactionName($transactionName)
+    {
+        newrelic_name_transaction($transactionName);
+    }
+
+    /**
+     * @param string $key
+     * @param mixed  $value
+     */
+    protected function setNewRelicParameter($key, $value)
+    {
+        if (null === $value || is_scalar($value)) {
+            newrelic_add_custom_parameter($key, $value);
+        } else {
+            newrelic_add_custom_parameter($key, @json_encode($value));
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new NormalizerFormatter();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/NullHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/NullHandler.php
new file mode 100644
index 0000000..4b84588
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/NullHandler.php
@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Blackhole
+ *
+ * Any record it can handle will be thrown away. This can be used
+ * to put on top of an existing stack to override it temporarily.
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class NullHandler extends AbstractHandler
+{
+    /**
+     * @param int $level The minimum logging level at which this handler will be triggered
+     */
+    public function __construct($level = Logger::DEBUG)
+    {
+        parent::__construct($level, false);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(array $record)
+    {
+        if ($record['level'] < $this->level) {
+            return false;
+        }
+
+        return true;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/PHPConsoleHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/PHPConsoleHandler.php
new file mode 100644
index 0000000..1f2076a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/PHPConsoleHandler.php
@@ -0,0 +1,242 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Exception;
+use Monolog\Formatter\LineFormatter;
+use Monolog\Logger;
+use PhpConsole\Connector;
+use PhpConsole\Handler;
+use PhpConsole\Helper;
+
+/**
+ * Monolog handler for Google Chrome extension "PHP Console"
+ *
+ * Display PHP error/debug log messages in Google Chrome console and notification popups, executes PHP code remotely
+ *
+ * Usage:
+ * 1. Install Google Chrome extension https://chrome.google.com/webstore/detail/php-console/nfhmhhlpfleoednkpnnnkolmclajemef
+ * 2. See overview https://github.com/barbushin/php-console#overview
+ * 3. Install PHP Console library https://github.com/barbushin/php-console#installation
+ * 4. Example (result will looks like http://i.hizliresim.com/vg3Pz4.png)
+ *
+ *      $logger = new \Monolog\Logger('all', array(new \Monolog\Handler\PHPConsoleHandler()));
+ *      \Monolog\ErrorHandler::register($logger);
+ *      echo $undefinedVar;
+ *      $logger->addDebug('SELECT * FROM users', array('db', 'time' => 0.012));
+ *      PC::debug($_SERVER); // PHP Console debugger for any type of vars
+ *
+ * @author Sergey Barbushin https://www.linkedin.com/in/barbushin
+ */
+class PHPConsoleHandler extends AbstractProcessingHandler
+{
+    private $options = array(
+        'enabled' => true, // bool Is PHP Console server enabled
+        'classesPartialsTraceIgnore' => array('Monolog\\'), // array Hide calls of classes started with...
+        'debugTagsKeysInContext' => array(0, 'tag'), // bool Is PHP Console server enabled
+        'useOwnErrorsHandler' => false, // bool Enable errors handling
+        'useOwnExceptionsHandler' => false, // bool Enable exceptions handling
+        'sourcesBasePath' => null, // string Base path of all project sources to strip in errors source paths
+        'registerHelper' => true, // bool Register PhpConsole\Helper that allows short debug calls like PC::debug($var, 'ta.g.s')
+        'serverEncoding' => null, // string|null Server internal encoding
+        'headersLimit' => null, // int|null Set headers size limit for your web-server
+        'password' => null, // string|null Protect PHP Console connection by password
+        'enableSslOnlyMode' => false, // bool Force connection by SSL for clients with PHP Console installed
+        'ipMasks' => array(), // array Set IP masks of clients that will be allowed to connect to PHP Console: array('192.168.*.*', '127.0.0.1')
+        'enableEvalListener' => false, // bool Enable eval request to be handled by eval dispatcher(if enabled, 'password' option is also required)
+        'dumperDetectCallbacks' => false, // bool Convert callback items in dumper vars to (callback SomeClass::someMethod) strings
+        'dumperLevelLimit' => 5, // int Maximum dumped vars array or object nested dump level
+        'dumperItemsCountLimit' => 100, // int Maximum dumped var same level array items or object properties number
+        'dumperItemSizeLimit' => 5000, // int Maximum length of any string or dumped array item
+        'dumperDumpSizeLimit' => 500000, // int Maximum approximate size of dumped vars result formatted in JSON
+        'detectDumpTraceAndSource' => false, // bool Autodetect and append trace data to debug
+        'dataStorage' => null, // PhpConsole\Storage|null Fixes problem with custom $_SESSION handler(see http://goo.gl/Ne8juJ)
+    );
+
+    /** @var Connector */
+    private $connector;
+
+    /**
+     * @param  array          $options   See \Monolog\Handler\PHPConsoleHandler::$options for more details
+     * @param  Connector|null $connector Instance of \PhpConsole\Connector class (optional)
+     * @param  int            $level
+     * @param  bool           $bubble
+     * @throws Exception
+     */
+    public function __construct(array $options = array(), Connector $connector = null, $level = Logger::DEBUG, $bubble = true)
+    {
+        if (!class_exists('PhpConsole\Connector')) {
+            throw new Exception('PHP Console library not found. See https://github.com/barbushin/php-console#installation');
+        }
+        parent::__construct($level, $bubble);
+        $this->options = $this->initOptions($options);
+        $this->connector = $this->initConnector($connector);
+    }
+
+    private function initOptions(array $options)
+    {
+        $wrongOptions = array_diff(array_keys($options), array_keys($this->options));
+        if ($wrongOptions) {
+            throw new Exception('Unknown options: ' . implode(', ', $wrongOptions));
+        }
+
+        return array_replace($this->options, $options);
+    }
+
+    private function initConnector(Connector $connector = null)
+    {
+        if (!$connector) {
+            if ($this->options['dataStorage']) {
+                Connector::setPostponeStorage($this->options['dataStorage']);
+            }
+            $connector = Connector::getInstance();
+        }
+
+        if ($this->options['registerHelper'] && !Helper::isRegistered()) {
+            Helper::register();
+        }
+
+        if ($this->options['enabled'] && $connector->isActiveClient()) {
+            if ($this->options['useOwnErrorsHandler'] || $this->options['useOwnExceptionsHandler']) {
+                $handler = Handler::getInstance();
+                $handler->setHandleErrors($this->options['useOwnErrorsHandler']);
+                $handler->setHandleExceptions($this->options['useOwnExceptionsHandler']);
+                $handler->start();
+            }
+            if ($this->options['sourcesBasePath']) {
+                $connector->setSourcesBasePath($this->options['sourcesBasePath']);
+            }
+            if ($this->options['serverEncoding']) {
+                $connector->setServerEncoding($this->options['serverEncoding']);
+            }
+            if ($this->options['password']) {
+                $connector->setPassword($this->options['password']);
+            }
+            if ($this->options['enableSslOnlyMode']) {
+                $connector->enableSslOnlyMode();
+            }
+            if ($this->options['ipMasks']) {
+                $connector->setAllowedIpMasks($this->options['ipMasks']);
+            }
+            if ($this->options['headersLimit']) {
+                $connector->setHeadersLimit($this->options['headersLimit']);
+            }
+            if ($this->options['detectDumpTraceAndSource']) {
+                $connector->getDebugDispatcher()->detectTraceAndSource = true;
+            }
+            $dumper = $connector->getDumper();
+            $dumper->levelLimit = $this->options['dumperLevelLimit'];
+            $dumper->itemsCountLimit = $this->options['dumperItemsCountLimit'];
+            $dumper->itemSizeLimit = $this->options['dumperItemSizeLimit'];
+            $dumper->dumpSizeLimit = $this->options['dumperDumpSizeLimit'];
+            $dumper->detectCallbacks = $this->options['dumperDetectCallbacks'];
+            if ($this->options['enableEvalListener']) {
+                $connector->startEvalRequestsListener();
+            }
+        }
+
+        return $connector;
+    }
+
+    public function getConnector()
+    {
+        return $this->connector;
+    }
+
+    public function getOptions()
+    {
+        return $this->options;
+    }
+
+    public function handle(array $record)
+    {
+        if ($this->options['enabled'] && $this->connector->isActiveClient()) {
+            return parent::handle($record);
+        }
+
+        return !$this->bubble;
+    }
+
+    /**
+     * Writes the record down to the log of the implementing handler
+     *
+     * @param  array $record
+     * @return void
+     */
+    protected function write(array $record)
+    {
+        if ($record['level'] < Logger::NOTICE) {
+            $this->handleDebugRecord($record);
+        } elseif (isset($record['context']['exception']) && $record['context']['exception'] instanceof Exception) {
+            $this->handleExceptionRecord($record);
+        } else {
+            $this->handleErrorRecord($record);
+        }
+    }
+
+    private function handleDebugRecord(array $record)
+    {
+        $tags = $this->getRecordTags($record);
+        $message = $record['message'];
+        if ($record['context']) {
+            $message .= ' ' . json_encode($this->connector->getDumper()->dump(array_filter($record['context'])));
+        }
+        $this->connector->getDebugDispatcher()->dispatchDebug($message, $tags, $this->options['classesPartialsTraceIgnore']);
+    }
+
+    private function handleExceptionRecord(array $record)
+    {
+        $this->connector->getErrorsDispatcher()->dispatchException($record['context']['exception']);
+    }
+
+    private function handleErrorRecord(array $record)
+    {
+        $context = $record['context'];
+
+        $this->connector->getErrorsDispatcher()->dispatchError(
+            isset($context['code']) ? $context['code'] : null,
+            isset($context['message']) ? $context['message'] : $record['message'],
+            isset($context['file']) ? $context['file'] : null,
+            isset($context['line']) ? $context['line'] : null,
+            $this->options['classesPartialsTraceIgnore']
+        );
+    }
+
+    private function getRecordTags(array &$record)
+    {
+        $tags = null;
+        if (!empty($record['context'])) {
+            $context = & $record['context'];
+            foreach ($this->options['debugTagsKeysInContext'] as $key) {
+                if (!empty($context[$key])) {
+                    $tags = $context[$key];
+                    if ($key === 0) {
+                        array_shift($context);
+                    } else {
+                        unset($context[$key]);
+                    }
+                    break;
+                }
+            }
+        }
+
+        return $tags ?: strtolower($record['level_name']);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new LineFormatter('%message%');
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/PsrHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/PsrHandler.php
new file mode 100644
index 0000000..1ae8584
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/PsrHandler.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Psr\Log\LoggerInterface;
+
+/**
+ * Proxies log messages to an existing PSR-3 compliant logger.
+ *
+ * @author Michael Moussa <michael.moussa@gmail.com>
+ */
+class PsrHandler extends AbstractHandler
+{
+    /**
+     * PSR-3 compliant logger
+     *
+     * @var LoggerInterface
+     */
+    protected $logger;
+
+    /**
+     * @param LoggerInterface $logger The underlying PSR-3 compliant logger to which messages will be proxied
+     * @param int             $level  The minimum logging level at which this handler will be triggered
+     * @param Boolean         $bubble Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct(LoggerInterface $logger, $level = Logger::DEBUG, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+
+        $this->logger = $logger;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function handle(array $record)
+    {
+        if (!$this->isHandling($record)) {
+            return false;
+        }
+
+        $this->logger->log(strtolower($record['level_name']), $record['message'], $record['context']);
+
+        return false === $this->bubble;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/PushoverHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/PushoverHandler.php
new file mode 100644
index 0000000..bba7200
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/PushoverHandler.php
@@ -0,0 +1,185 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Sends notifications through the pushover api to mobile phones
+ *
+ * @author Sebastian Göttschkes <sebastian.goettschkes@googlemail.com>
+ * @see    https://www.pushover.net/api
+ */
+class PushoverHandler extends SocketHandler
+{
+    private $token;
+    private $users;
+    private $title;
+    private $user;
+    private $retry;
+    private $expire;
+
+    private $highPriorityLevel;
+    private $emergencyLevel;
+    private $useFormattedMessage = false;
+
+    /**
+     * All parameters that can be sent to Pushover
+     * @see https://pushover.net/api
+     * @var array
+     */
+    private $parameterNames = array(
+        'token' => true,
+        'user' => true,
+        'message' => true,
+        'device' => true,
+        'title' => true,
+        'url' => true,
+        'url_title' => true,
+        'priority' => true,
+        'timestamp' => true,
+        'sound' => true,
+        'retry' => true,
+        'expire' => true,
+        'callback' => true,
+    );
+
+    /**
+     * Sounds the api supports by default
+     * @see https://pushover.net/api#sounds
+     * @var array
+     */
+    private $sounds = array(
+        'pushover', 'bike', 'bugle', 'cashregister', 'classical', 'cosmic', 'falling', 'gamelan', 'incoming',
+        'intermission', 'magic', 'mechanical', 'pianobar', 'siren', 'spacealarm', 'tugboat', 'alien', 'climb',
+        'persistent', 'echo', 'updown', 'none',
+    );
+
+    /**
+     * @param string       $token             Pushover api token
+     * @param string|array $users             Pushover user id or array of ids the message will be sent to
+     * @param string       $title             Title sent to the Pushover API
+     * @param int          $level             The minimum logging level at which this handler will be triggered
+     * @param Boolean      $bubble            Whether the messages that are handled can bubble up the stack or not
+     * @param Boolean      $useSSL            Whether to connect via SSL. Required when pushing messages to users that are not
+     *                                        the pushover.net app owner. OpenSSL is required for this option.
+     * @param int          $highPriorityLevel The minimum logging level at which this handler will start
+     *                                        sending "high priority" requests to the Pushover API
+     * @param int          $emergencyLevel    The minimum logging level at which this handler will start
+     *                                        sending "emergency" requests to the Pushover API
+     * @param int          $retry             The retry parameter specifies how often (in seconds) the Pushover servers will send the same notification to the user.
+     * @param int          $expire            The expire parameter specifies how many seconds your notification will continue to be retried for (every retry seconds).
+     */
+    public function __construct($token, $users, $title = null, $level = Logger::CRITICAL, $bubble = true, $useSSL = true, $highPriorityLevel = Logger::CRITICAL, $emergencyLevel = Logger::EMERGENCY, $retry = 30, $expire = 25200)
+    {
+        $connectionString = $useSSL ? 'ssl://api.pushover.net:443' : 'api.pushover.net:80';
+        parent::__construct($connectionString, $level, $bubble);
+
+        $this->token = $token;
+        $this->users = (array) $users;
+        $this->title = $title ?: gethostname();
+        $this->highPriorityLevel = Logger::toMonologLevel($highPriorityLevel);
+        $this->emergencyLevel = Logger::toMonologLevel($emergencyLevel);
+        $this->retry = $retry;
+        $this->expire = $expire;
+    }
+
+    protected function generateDataStream($record)
+    {
+        $content = $this->buildContent($record);
+
+        return $this->buildHeader($content) . $content;
+    }
+
+    private function buildContent($record)
+    {
+        // Pushover has a limit of 512 characters on title and message combined.
+        $maxMessageLength = 512 - strlen($this->title);
+
+        $message = ($this->useFormattedMessage) ? $record['formatted'] : $record['message'];
+        $message = substr($message, 0, $maxMessageLength);
+
+        $timestamp = $record['datetime']->getTimestamp();
+
+        $dataArray = array(
+            'token' => $this->token,
+            'user' => $this->user,
+            'message' => $message,
+            'title' => $this->title,
+            'timestamp' => $timestamp,
+        );
+
+        if (isset($record['level']) && $record['level'] >= $this->emergencyLevel) {
+            $dataArray['priority'] = 2;
+            $dataArray['retry'] = $this->retry;
+            $dataArray['expire'] = $this->expire;
+        } elseif (isset($record['level']) && $record['level'] >= $this->highPriorityLevel) {
+            $dataArray['priority'] = 1;
+        }
+
+        // First determine the available parameters
+        $context = array_intersect_key($record['context'], $this->parameterNames);
+        $extra = array_intersect_key($record['extra'], $this->parameterNames);
+
+        // Least important info should be merged with subsequent info
+        $dataArray = array_merge($extra, $context, $dataArray);
+
+        // Only pass sounds that are supported by the API
+        if (isset($dataArray['sound']) && !in_array($dataArray['sound'], $this->sounds)) {
+            unset($dataArray['sound']);
+        }
+
+        return http_build_query($dataArray);
+    }
+
+    private function buildHeader($content)
+    {
+        $header = "POST /1/messages.json HTTP/1.1\r\n";
+        $header .= "Host: api.pushover.net\r\n";
+        $header .= "Content-Type: application/x-www-form-urlencoded\r\n";
+        $header .= "Content-Length: " . strlen($content) . "\r\n";
+        $header .= "\r\n";
+
+        return $header;
+    }
+
+    protected function write(array $record)
+    {
+        foreach ($this->users as $user) {
+            $this->user = $user;
+
+            parent::write($record);
+            $this->closeSocket();
+        }
+
+        $this->user = null;
+    }
+
+    public function setHighPriorityLevel($value)
+    {
+        $this->highPriorityLevel = $value;
+    }
+
+    public function setEmergencyLevel($value)
+    {
+        $this->emergencyLevel = $value;
+    }
+
+    /**
+     * Use the formatted message?
+     * @param bool $value
+     */
+    public function useFormattedMessage($value)
+    {
+        $this->useFormattedMessage = (boolean) $value;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RavenHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RavenHandler.php
new file mode 100644
index 0000000..53a8b39
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RavenHandler.php
@@ -0,0 +1,232 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\LineFormatter;
+use Monolog\Formatter\FormatterInterface;
+use Monolog\Logger;
+use Raven_Client;
+
+/**
+ * Handler to send messages to a Sentry (https://github.com/getsentry/sentry) server
+ * using raven-php (https://github.com/getsentry/raven-php)
+ *
+ * @author Marc Abramowitz <marc@marc-abramowitz.com>
+ */
+class RavenHandler extends AbstractProcessingHandler
+{
+    /**
+     * Translates Monolog log levels to Raven log levels.
+     */
+    private $logLevels = array(
+        Logger::DEBUG     => Raven_Client::DEBUG,
+        Logger::INFO      => Raven_Client::INFO,
+        Logger::NOTICE    => Raven_Client::INFO,
+        Logger::WARNING   => Raven_Client::WARNING,
+        Logger::ERROR     => Raven_Client::ERROR,
+        Logger::CRITICAL  => Raven_Client::FATAL,
+        Logger::ALERT     => Raven_Client::FATAL,
+        Logger::EMERGENCY => Raven_Client::FATAL,
+    );
+
+    /**
+     * @var string should represent the current version of the calling
+     *             software. Can be any string (git commit, version number)
+     */
+    private $release;
+
+    /**
+     * @var Raven_Client the client object that sends the message to the server
+     */
+    protected $ravenClient;
+
+    /**
+     * @var LineFormatter The formatter to use for the logs generated via handleBatch()
+     */
+    protected $batchFormatter;
+
+    /**
+     * @param Raven_Client $ravenClient
+     * @param int          $level       The minimum logging level at which this handler will be triggered
+     * @param Boolean      $bubble      Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct(Raven_Client $ravenClient, $level = Logger::DEBUG, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+
+        $this->ravenClient = $ravenClient;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        $level = $this->level;
+
+        // filter records based on their level
+        $records = array_filter($records, function ($record) use ($level) {
+            return $record['level'] >= $level;
+        });
+
+        if (!$records) {
+            return;
+        }
+
+        // the record with the highest severity is the "main" one
+        $record = array_reduce($records, function ($highest, $record) {
+            if ($record['level'] > $highest['level']) {
+                return $record;
+            }
+
+            return $highest;
+        });
+
+        // the other ones are added as a context item
+        $logs = array();
+        foreach ($records as $r) {
+            $logs[] = $this->processRecord($r);
+        }
+
+        if ($logs) {
+            $record['context']['logs'] = (string) $this->getBatchFormatter()->formatBatch($logs);
+        }
+
+        $this->handle($record);
+    }
+
+    /**
+     * Sets the formatter for the logs generated by handleBatch().
+     *
+     * @param FormatterInterface $formatter
+     */
+    public function setBatchFormatter(FormatterInterface $formatter)
+    {
+        $this->batchFormatter = $formatter;
+    }
+
+    /**
+     * Gets the formatter for the logs generated by handleBatch().
+     *
+     * @return FormatterInterface
+     */
+    public function getBatchFormatter()
+    {
+        if (!$this->batchFormatter) {
+            $this->batchFormatter = $this->getDefaultBatchFormatter();
+        }
+
+        return $this->batchFormatter;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        $previousUserContext = false;
+        $options = array();
+        $options['level'] = $this->logLevels[$record['level']];
+        $options['tags'] = array();
+        if (!empty($record['extra']['tags'])) {
+            $options['tags'] = array_merge($options['tags'], $record['extra']['tags']);
+            unset($record['extra']['tags']);
+        }
+        if (!empty($record['context']['tags'])) {
+            $options['tags'] = array_merge($options['tags'], $record['context']['tags']);
+            unset($record['context']['tags']);
+        }
+        if (!empty($record['context']['fingerprint'])) {
+            $options['fingerprint'] = $record['context']['fingerprint'];
+            unset($record['context']['fingerprint']);
+        }
+        if (!empty($record['context']['logger'])) {
+            $options['logger'] = $record['context']['logger'];
+            unset($record['context']['logger']);
+        } else {
+            $options['logger'] = $record['channel'];
+        }
+        foreach ($this->getExtraParameters() as $key) {
+            foreach (array('extra', 'context') as $source) {
+                if (!empty($record[$source][$key])) {
+                    $options[$key] = $record[$source][$key];
+                    unset($record[$source][$key]);
+                }
+            }
+        }
+        if (!empty($record['context'])) {
+            $options['extra']['context'] = $record['context'];
+            if (!empty($record['context']['user'])) {
+                $previousUserContext = $this->ravenClient->context->user;
+                $this->ravenClient->user_context($record['context']['user']);
+                unset($options['extra']['context']['user']);
+            }
+        }
+        if (!empty($record['extra'])) {
+            $options['extra']['extra'] = $record['extra'];
+        }
+
+        if (!empty($this->release) && !isset($options['release'])) {
+            $options['release'] = $this->release;
+        }
+
+        if (isset($record['context']['exception']) && ($record['context']['exception'] instanceof \Exception || (PHP_VERSION_ID >= 70000 && $record['context']['exception'] instanceof \Throwable))) {
+            $options['extra']['message'] = $record['formatted'];
+            $this->ravenClient->captureException($record['context']['exception'], $options);
+        } else {
+            $this->ravenClient->captureMessage($record['formatted'], array(), $options);
+        }
+
+        if ($previousUserContext !== false) {
+            $this->ravenClient->user_context($previousUserContext);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new LineFormatter('[%channel%] %message%');
+    }
+
+    /**
+     * Gets the default formatter for the logs generated by handleBatch().
+     *
+     * @return FormatterInterface
+     */
+    protected function getDefaultBatchFormatter()
+    {
+        return new LineFormatter();
+    }
+
+    /**
+     * Gets extra parameters supported by Raven that can be found in "extra" and "context"
+     *
+     * @return array
+     */
+    protected function getExtraParameters()
+    {
+        return array('checksum', 'release', 'event_id');
+    }
+
+    /**
+     * @param string $value
+     * @return self
+     */
+    public function setRelease($value)
+    {
+        $this->release = $value;
+
+        return $this;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RedisHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RedisHandler.php
new file mode 100644
index 0000000..590f996
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RedisHandler.php
@@ -0,0 +1,97 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\LineFormatter;
+use Monolog\Logger;
+
+/**
+ * Logs to a Redis key using rpush
+ *
+ * usage example:
+ *
+ *   $log = new Logger('application');
+ *   $redis = new RedisHandler(new Predis\Client("tcp://localhost:6379"), "logs", "prod");
+ *   $log->pushHandler($redis);
+ *
+ * @author Thomas Tourlourat <thomas@tourlourat.com>
+ */
+class RedisHandler extends AbstractProcessingHandler
+{
+    private $redisClient;
+    private $redisKey;
+    protected $capSize;
+
+    /**
+     * @param \Predis\Client|\Redis $redis   The redis instance
+     * @param string                $key     The key name to push records to
+     * @param int                   $level   The minimum logging level at which this handler will be triggered
+     * @param bool                  $bubble  Whether the messages that are handled can bubble up the stack or not
+     * @param int                   $capSize Number of entries to limit list size to
+     */
+    public function __construct($redis, $key, $level = Logger::DEBUG, $bubble = true, $capSize = false)
+    {
+        if (!(($redis instanceof \Predis\Client) || ($redis instanceof \Redis))) {
+            throw new \InvalidArgumentException('Predis\Client or Redis instance required');
+        }
+
+        $this->redisClient = $redis;
+        $this->redisKey = $key;
+        $this->capSize = $capSize;
+
+        parent::__construct($level, $bubble);
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function write(array $record)
+    {
+        if ($this->capSize) {
+            $this->writeCapped($record);
+        } else {
+            $this->redisClient->rpush($this->redisKey, $record["formatted"]);
+        }
+    }
+
+    /**
+     * Write and cap the collection
+     * Writes the record to the redis list and caps its
+     *
+     * @param  array $record associative record array
+     * @return void
+     */
+    protected function writeCapped(array $record)
+    {
+        if ($this->redisClient instanceof \Redis) {
+            $this->redisClient->multi()
+                ->rpush($this->redisKey, $record["formatted"])
+                ->ltrim($this->redisKey, -$this->capSize, -1)
+                ->exec();
+        } else {
+            $redisKey = $this->redisKey;
+            $capSize = $this->capSize;
+            $this->redisClient->transaction(function ($tx) use ($record, $redisKey, $capSize) {
+                $tx->rpush($redisKey, $record["formatted"]);
+                $tx->ltrim($redisKey, -$capSize, -1);
+            });
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getDefaultFormatter()
+    {
+        return new LineFormatter();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RollbarHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RollbarHandler.php
new file mode 100644
index 0000000..6c8a3e3
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RollbarHandler.php
@@ -0,0 +1,132 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use RollbarNotifier;
+use Exception;
+use Monolog\Logger;
+
+/**
+ * Sends errors to Rollbar
+ *
+ * If the context data contains a `payload` key, that is used as an array
+ * of payload options to RollbarNotifier's report_message/report_exception methods.
+ *
+ * Rollbar's context info will contain the context + extra keys from the log record
+ * merged, and then on top of that a few keys:
+ *
+ *  - level (rollbar level name)
+ *  - monolog_level (monolog level name, raw level, as rollbar only has 5 but monolog 8)
+ *  - channel
+ *  - datetime (unix timestamp)
+ *
+ * @author Paul Statezny <paulstatezny@gmail.com>
+ */
+class RollbarHandler extends AbstractProcessingHandler
+{
+    /**
+     * Rollbar notifier
+     *
+     * @var RollbarNotifier
+     */
+    protected $rollbarNotifier;
+
+    protected $levelMap = array(
+        Logger::DEBUG     => 'debug',
+        Logger::INFO      => 'info',
+        Logger::NOTICE    => 'info',
+        Logger::WARNING   => 'warning',
+        Logger::ERROR     => 'error',
+        Logger::CRITICAL  => 'critical',
+        Logger::ALERT     => 'critical',
+        Logger::EMERGENCY => 'critical',
+    );
+
+    /**
+     * Records whether any log records have been added since the last flush of the rollbar notifier
+     *
+     * @var bool
+     */
+    private $hasRecords = false;
+
+    protected $initialized = false;
+
+    /**
+     * @param RollbarNotifier $rollbarNotifier RollbarNotifier object constructed with valid token
+     * @param int             $level           The minimum logging level at which this handler will be triggered
+     * @param bool            $bubble          Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct(RollbarNotifier $rollbarNotifier, $level = Logger::ERROR, $bubble = true)
+    {
+        $this->rollbarNotifier = $rollbarNotifier;
+
+        parent::__construct($level, $bubble);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        if (!$this->initialized) {
+            // __destructor() doesn't get called on Fatal errors
+            register_shutdown_function(array($this, 'close'));
+            $this->initialized = true;
+        }
+
+        $context = $record['context'];
+        $payload = array();
+        if (isset($context['payload'])) {
+            $payload = $context['payload'];
+            unset($context['payload']);
+        }
+        $context = array_merge($context, $record['extra'], array(
+            'level' => $this->levelMap[$record['level']],
+            'monolog_level' => $record['level_name'],
+            'channel' => $record['channel'],
+            'datetime' => $record['datetime']->format('U'),
+        ));
+
+        if (isset($context['exception']) && $context['exception'] instanceof Exception) {
+            $payload['level'] = $context['level'];
+            $exception = $context['exception'];
+            unset($context['exception']);
+
+            $this->rollbarNotifier->report_exception($exception, $context, $payload);
+        } else {
+            $this->rollbarNotifier->report_message(
+                $record['message'],
+                $context['level'],
+                $context,
+                $payload
+            );
+        }
+
+        $this->hasRecords = true;
+    }
+
+    public function flush()
+    {
+        if ($this->hasRecords) {
+            $this->rollbarNotifier->flush();
+            $this->hasRecords = false;
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        $this->flush();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RotatingFileHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RotatingFileHandler.php
new file mode 100644
index 0000000..3b60b3d
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/RotatingFileHandler.php
@@ -0,0 +1,178 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Stores logs to files that are rotated every day and a limited number of files are kept.
+ *
+ * This rotation is only intended to be used as a workaround. Using logrotate to
+ * handle the rotation is strongly encouraged when you can use it.
+ *
+ * @author Christophe Coevoet <stof@notk.org>
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class RotatingFileHandler extends StreamHandler
+{
+    const FILE_PER_DAY = 'Y-m-d';
+    const FILE_PER_MONTH = 'Y-m';
+    const FILE_PER_YEAR = 'Y';
+
+    protected $filename;
+    protected $maxFiles;
+    protected $mustRotate;
+    protected $nextRotation;
+    protected $filenameFormat;
+    protected $dateFormat;
+
+    /**
+     * @param string   $filename
+     * @param int      $maxFiles       The maximal amount of files to keep (0 means unlimited)
+     * @param int      $level          The minimum logging level at which this handler will be triggered
+     * @param Boolean  $bubble         Whether the messages that are handled can bubble up the stack or not
+     * @param int|null $filePermission Optional file permissions (default (0644) are only for owner read/write)
+     * @param Boolean  $useLocking     Try to lock log file before doing any writes
+     */
+    public function __construct($filename, $maxFiles = 0, $level = Logger::DEBUG, $bubble = true, $filePermission = null, $useLocking = false)
+    {
+        $this->filename = $filename;
+        $this->maxFiles = (int) $maxFiles;
+        $this->nextRotation = new \DateTime('tomorrow');
+        $this->filenameFormat = '{filename}-{date}';
+        $this->dateFormat = 'Y-m-d';
+
+        parent::__construct($this->getTimedFilename(), $level, $bubble, $filePermission, $useLocking);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        parent::close();
+
+        if (true === $this->mustRotate) {
+            $this->rotate();
+        }
+    }
+
+    public function setFilenameFormat($filenameFormat, $dateFormat)
+    {
+        if (!preg_match('{^Y(([/_.-]?m)([/_.-]?d)?)?$}', $dateFormat)) {
+            trigger_error(
+                'Invalid date format - format must be one of '.
+                'RotatingFileHandler::FILE_PER_DAY ("Y-m-d"), RotatingFileHandler::FILE_PER_MONTH ("Y-m") '.
+                'or RotatingFileHandler::FILE_PER_YEAR ("Y"), or you can set one of the '.
+                'date formats using slashes, underscores and/or dots instead of dashes.',
+                E_USER_DEPRECATED
+            );
+        }
+        if (substr_count($filenameFormat, '{date}') === 0) {
+            trigger_error(
+                'Invalid filename format - format should contain at least `{date}`, because otherwise rotating is impossible.',
+                E_USER_DEPRECATED
+            );
+        }
+        $this->filenameFormat = $filenameFormat;
+        $this->dateFormat = $dateFormat;
+        $this->url = $this->getTimedFilename();
+        $this->close();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        // on the first record written, if the log is new, we should rotate (once per day)
+        if (null === $this->mustRotate) {
+            $this->mustRotate = !file_exists($this->url);
+        }
+
+        if ($this->nextRotation < $record['datetime']) {
+            $this->mustRotate = true;
+            $this->close();
+        }
+
+        parent::write($record);
+    }
+
+    /**
+     * Rotates the files.
+     */
+    protected function rotate()
+    {
+        // update filename
+        $this->url = $this->getTimedFilename();
+        $this->nextRotation = new \DateTime('tomorrow');
+
+        // skip GC of old logs if files are unlimited
+        if (0 === $this->maxFiles) {
+            return;
+        }
+
+        $logFiles = glob($this->getGlobPattern());
+        if ($this->maxFiles >= count($logFiles)) {
+            // no files to remove
+            return;
+        }
+
+        // Sorting the files by name to remove the older ones
+        usort($logFiles, function ($a, $b) {
+            return strcmp($b, $a);
+        });
+
+        foreach (array_slice($logFiles, $this->maxFiles) as $file) {
+            if (is_writable($file)) {
+                // suppress errors here as unlink() might fail if two processes
+                // are cleaning up/rotating at the same time
+                set_error_handler(function ($errno, $errstr, $errfile, $errline) {});
+                unlink($file);
+                restore_error_handler();
+            }
+        }
+
+        $this->mustRotate = false;
+    }
+
+    protected function getTimedFilename()
+    {
+        $fileInfo = pathinfo($this->filename);
+        $timedFilename = str_replace(
+            array('{filename}', '{date}'),
+            array($fileInfo['filename'], date($this->dateFormat)),
+            $fileInfo['dirname'] . '/' . $this->filenameFormat
+        );
+
+        if (!empty($fileInfo['extension'])) {
+            $timedFilename .= '.'.$fileInfo['extension'];
+        }
+
+        return $timedFilename;
+    }
+
+    protected function getGlobPattern()
+    {
+        $fileInfo = pathinfo($this->filename);
+        $glob = str_replace(
+            array('{filename}', '{date}'),
+            array($fileInfo['filename'], '*'),
+            $fileInfo['dirname'] . '/' . $this->filenameFormat
+        );
+        if (!empty($fileInfo['extension'])) {
+            $glob .= '.'.$fileInfo['extension'];
+        }
+
+        return $glob;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SamplingHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SamplingHandler.php
new file mode 100644
index 0000000..9509ae3
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SamplingHandler.php
@@ -0,0 +1,82 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+/**
+ * Sampling handler
+ *
+ * A sampled event stream can be useful for logging high frequency events in
+ * a production environment where you only need an idea of what is happening
+ * and are not concerned with capturing every occurrence. Since the decision to
+ * handle or not handle a particular event is determined randomly, the
+ * resulting sampled log is not guaranteed to contain 1/N of the events that
+ * occurred in the application, but based on the Law of large numbers, it will
+ * tend to be close to this ratio with a large number of attempts.
+ *
+ * @author Bryan Davis <bd808@wikimedia.org>
+ * @author Kunal Mehta <legoktm@gmail.com>
+ */
+class SamplingHandler extends AbstractHandler
+{
+    /**
+     * @var callable|HandlerInterface $handler
+     */
+    protected $handler;
+
+    /**
+     * @var int $factor
+     */
+    protected $factor;
+
+    /**
+     * @param callable|HandlerInterface $handler Handler or factory callable($record, $fingersCrossedHandler).
+     * @param int                       $factor  Sample factor
+     */
+    public function __construct($handler, $factor)
+    {
+        parent::__construct();
+        $this->handler = $handler;
+        $this->factor = $factor;
+
+        if (!$this->handler instanceof HandlerInterface && !is_callable($this->handler)) {
+            throw new \RuntimeException("The given handler (".json_encode($this->handler).") is not a callable nor a Monolog\Handler\HandlerInterface object");
+        }
+    }
+
+    public function isHandling(array $record)
+    {
+        return $this->handler->isHandling($record);
+    }
+
+    public function handle(array $record)
+    {
+        if ($this->isHandling($record) && mt_rand(1, $this->factor) === 1) {
+            // The same logic as in FingersCrossedHandler
+            if (!$this->handler instanceof HandlerInterface) {
+                $this->handler = call_user_func($this->handler, $record, $this);
+                if (!$this->handler instanceof HandlerInterface) {
+                    throw new \RuntimeException("The factory callable should return a HandlerInterface");
+                }
+            }
+
+            if ($this->processors) {
+                foreach ($this->processors as $processor) {
+                    $record = call_user_func($processor, $record);
+                }
+            }
+
+            $this->handler->handle($record);
+        }
+
+        return false === $this->bubble;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/Slack/SlackRecord.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/Slack/SlackRecord.php
new file mode 100644
index 0000000..38bc838
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/Slack/SlackRecord.php
@@ -0,0 +1,294 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler\Slack;
+
+use Monolog\Logger;
+use Monolog\Formatter\NormalizerFormatter;
+use Monolog\Formatter\FormatterInterface;
+
+/**
+ * Slack record utility helping to log to Slack webhooks or API.
+ *
+ * @author Greg Kedzierski <greg@gregkedzierski.com>
+ * @author Haralan Dobrev <hkdobrev@gmail.com>
+ * @see    https://api.slack.com/incoming-webhooks
+ * @see    https://api.slack.com/docs/message-attachments
+ */
+class SlackRecord
+{
+    const COLOR_DANGER = 'danger';
+
+    const COLOR_WARNING = 'warning';
+
+    const COLOR_GOOD = 'good';
+
+    const COLOR_DEFAULT = '#e3e4e6';
+
+    /**
+     * Slack channel (encoded ID or name)
+     * @var string|null
+     */
+    private $channel;
+
+    /**
+     * Name of a bot
+     * @var string|null
+     */
+    private $username;
+
+    /**
+     * User icon e.g. 'ghost', 'http://example.com/user.png'
+     * @var string
+     */
+    private $userIcon;
+
+    /**
+     * Whether the message should be added to Slack as attachment (plain text otherwise)
+     * @var bool
+     */
+    private $useAttachment;
+
+    /**
+     * Whether the the context/extra messages added to Slack as attachments are in a short style
+     * @var bool
+     */
+    private $useShortAttachment;
+
+    /**
+     * Whether the attachment should include context and extra data
+     * @var bool
+     */
+    private $includeContextAndExtra;
+
+    /**
+     * Dot separated list of fields to exclude from slack message. E.g. ['context.field1', 'extra.field2']
+     * @var array
+     */
+    private $excludeFields;
+
+    /**
+     * @var FormatterInterface
+     */
+    private $formatter;
+
+    /**
+     * @var NormalizerFormatter
+     */
+    private $normalizerFormatter;
+
+    public function __construct($channel = null, $username = null, $useAttachment = true, $userIcon = null, $useShortAttachment = false, $includeContextAndExtra = false, array $excludeFields = array(), FormatterInterface $formatter = null)
+    {
+        $this->channel = $channel;
+        $this->username = $username;
+        $this->userIcon = trim($userIcon, ':');
+        $this->useAttachment = $useAttachment;
+        $this->useShortAttachment = $useShortAttachment;
+        $this->includeContextAndExtra = $includeContextAndExtra;
+        $this->excludeFields = $excludeFields;
+        $this->formatter = $formatter;
+
+        if ($this->includeContextAndExtra) {
+            $this->normalizerFormatter = new NormalizerFormatter();
+        }
+    }
+
+    public function getSlackData(array $record)
+    {
+        $dataArray = array();
+        $record = $this->excludeFields($record);
+
+        if ($this->username) {
+            $dataArray['username'] = $this->username;
+        }
+
+        if ($this->channel) {
+            $dataArray['channel'] = $this->channel;
+        }
+
+        if ($this->formatter && !$this->useAttachment) {
+            $message = $this->formatter->format($record);
+        } else {
+            $message = $record['message'];
+        }
+
+        if ($this->useAttachment) {
+            $attachment = array(
+                'fallback'  => $message,
+                'text'      => $message,
+                'color'     => $this->getAttachmentColor($record['level']),
+                'fields'    => array(),
+                'mrkdwn_in' => array('fields'),
+                'ts'        => $record['datetime']->getTimestamp()
+            );
+
+            if ($this->useShortAttachment) {
+                $attachment['title'] = $record['level_name'];
+            } else {
+                $attachment['title'] = 'Message';
+                $attachment['fields'][] = $this->generateAttachmentField('Level', $record['level_name']);
+            }
+
+
+            if ($this->includeContextAndExtra) {
+                foreach (array('extra', 'context') as $key) {
+                    if (empty($record[$key])) {
+                        continue;
+                    }
+
+                    if ($this->useShortAttachment) {
+                        $attachment['fields'][] = $this->generateAttachmentField(
+                            ucfirst($key),
+                            $record[$key]
+                        );
+                    } else {
+                        // Add all extra fields as individual fields in attachment
+                        $attachment['fields'] = array_merge(
+                            $attachment['fields'],
+                            $this->generateAttachmentFields($record[$key])
+                        );
+                    }
+                }
+            }
+
+            $dataArray['attachments'] = array($attachment);
+        } else {
+            $dataArray['text'] = $message;
+        }
+
+        if ($this->userIcon) {
+            if (filter_var($this->userIcon, FILTER_VALIDATE_URL)) {
+                $dataArray['icon_url'] = $this->userIcon;
+            } else {
+                $dataArray['icon_emoji'] = ":{$this->userIcon}:";
+            }
+        }
+
+        return $dataArray;
+    }
+
+    /**
+     * Returned a Slack message attachment color associated with
+     * provided level.
+     *
+     * @param  int    $level
+     * @return string
+     */
+    public function getAttachmentColor($level)
+    {
+        switch (true) {
+            case $level >= Logger::ERROR:
+                return self::COLOR_DANGER;
+            case $level >= Logger::WARNING:
+                return self::COLOR_WARNING;
+            case $level >= Logger::INFO:
+                return self::COLOR_GOOD;
+            default:
+                return self::COLOR_DEFAULT;
+        }
+    }
+
+    /**
+     * Stringifies an array of key/value pairs to be used in attachment fields
+     *
+     * @param array $fields
+     *
+     * @return string
+     */
+    public function stringify($fields)
+    {
+        $normalized = $this->normalizerFormatter->format($fields);
+        $prettyPrintFlag = defined('JSON_PRETTY_PRINT') ? JSON_PRETTY_PRINT : 128;
+
+        $hasSecondDimension = count(array_filter($normalized, 'is_array'));
+        $hasNonNumericKeys = !count(array_filter(array_keys($normalized), 'is_numeric'));
+
+        return $hasSecondDimension || $hasNonNumericKeys
+            ? json_encode($normalized, $prettyPrintFlag)
+            : json_encode($normalized);
+    }
+
+    /**
+     * Sets the formatter
+     *
+     * @param FormatterInterface $formatter
+     */
+    public function setFormatter(FormatterInterface $formatter)
+    {
+        $this->formatter = $formatter;
+    }
+
+    /**
+     * Generates attachment field
+     *
+     * @param string $title
+     * @param string|array $value\
+     *
+     * @return array
+     */
+    private function generateAttachmentField($title, $value)
+    {
+        $value = is_array($value)
+            ? sprintf('```%s```', $this->stringify($value))
+            : $value;
+
+        return array(
+            'title' => $title,
+            'value' => $value,
+            'short' => false
+        );
+    }
+
+    /**
+     * Generates a collection of attachment fields from array
+     *
+     * @param array $data
+     *
+     * @return array
+     */
+    private function generateAttachmentFields(array $data)
+    {
+        $fields = array();
+        foreach ($data as $key => $value) {
+            $fields[] = $this->generateAttachmentField($key, $value);
+        }
+
+        return $fields;
+    }
+
+    /**
+     * Get a copy of record with fields excluded according to $this->excludeFields
+     *
+     * @param array $record
+     *
+     * @return array
+     */
+    private function excludeFields(array $record)
+    {
+        foreach ($this->excludeFields as $field) {
+            $keys = explode('.', $field);
+            $node = &$record;
+            $lastKey = end($keys);
+            foreach ($keys as $key) {
+                if (!isset($node[$key])) {
+                    break;
+                }
+                if ($lastKey === $key) {
+                    unset($node[$key]);
+                    break;
+                }
+                $node = &$node[$key];
+            }
+        }
+
+        return $record;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SlackHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SlackHandler.php
new file mode 100644
index 0000000..3ac4d83
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SlackHandler.php
@@ -0,0 +1,215 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\FormatterInterface;
+use Monolog\Logger;
+use Monolog\Handler\Slack\SlackRecord;
+
+/**
+ * Sends notifications through Slack API
+ *
+ * @author Greg Kedzierski <greg@gregkedzierski.com>
+ * @see    https://api.slack.com/
+ */
+class SlackHandler extends SocketHandler
+{
+    /**
+     * Slack API token
+     * @var string
+     */
+    private $token;
+
+    /**
+     * Instance of the SlackRecord util class preparing data for Slack API.
+     * @var SlackRecord
+     */
+    private $slackRecord;
+
+    /**
+     * @param  string                    $token                  Slack API token
+     * @param  string                    $channel                Slack channel (encoded ID or name)
+     * @param  string|null               $username               Name of a bot
+     * @param  bool                      $useAttachment          Whether the message should be added to Slack as attachment (plain text otherwise)
+     * @param  string|null               $iconEmoji              The emoji name to use (or null)
+     * @param  int                       $level                  The minimum logging level at which this handler will be triggered
+     * @param  bool                      $bubble                 Whether the messages that are handled can bubble up the stack or not
+     * @param  bool                      $useShortAttachment     Whether the the context/extra messages added to Slack as attachments are in a short style
+     * @param  bool                      $includeContextAndExtra Whether the attachment should include context and extra data
+     * @param  array                     $excludeFields          Dot separated list of fields to exclude from slack message. E.g. ['context.field1', 'extra.field2']
+     * @throws MissingExtensionException If no OpenSSL PHP extension configured
+     */
+    public function __construct($token, $channel, $username = null, $useAttachment = true, $iconEmoji = null, $level = Logger::CRITICAL, $bubble = true, $useShortAttachment = false, $includeContextAndExtra = false, array $excludeFields = array())
+    {
+        if (!extension_loaded('openssl')) {
+            throw new MissingExtensionException('The OpenSSL PHP extension is required to use the SlackHandler');
+        }
+
+        parent::__construct('ssl://slack.com:443', $level, $bubble);
+
+        $this->slackRecord = new SlackRecord(
+            $channel,
+            $username,
+            $useAttachment,
+            $iconEmoji,
+            $useShortAttachment,
+            $includeContextAndExtra,
+            $excludeFields,
+            $this->formatter
+        );
+
+        $this->token = $token;
+    }
+
+    public function getSlackRecord()
+    {
+        return $this->slackRecord;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param  array  $record
+     * @return string
+     */
+    protected function generateDataStream($record)
+    {
+        $content = $this->buildContent($record);
+
+        return $this->buildHeader($content) . $content;
+    }
+
+    /**
+     * Builds the body of API call
+     *
+     * @param  array  $record
+     * @return string
+     */
+    private function buildContent($record)
+    {
+        $dataArray = $this->prepareContentData($record);
+
+        return http_build_query($dataArray);
+    }
+
+    /**
+     * Prepares content data
+     *
+     * @param  array $record
+     * @return array
+     */
+    protected function prepareContentData($record)
+    {
+        $dataArray = $this->slackRecord->getSlackData($record);
+        $dataArray['token'] = $this->token;
+
+        if (!empty($dataArray['attachments'])) {
+            $dataArray['attachments'] = json_encode($dataArray['attachments']);
+        }
+
+        return $dataArray;
+    }
+
+    /**
+     * Builds the header of the API Call
+     *
+     * @param  string $content
+     * @return string
+     */
+    private function buildHeader($content)
+    {
+        $header = "POST /api/chat.postMessage HTTP/1.1\r\n";
+        $header .= "Host: slack.com\r\n";
+        $header .= "Content-Type: application/x-www-form-urlencoded\r\n";
+        $header .= "Content-Length: " . strlen($content) . "\r\n";
+        $header .= "\r\n";
+
+        return $header;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param array $record
+     */
+    protected function write(array $record)
+    {
+        parent::write($record);
+        $this->finalizeWrite();
+    }
+
+    /**
+     * Finalizes the request by reading some bytes and then closing the socket
+     *
+     * If we do not read some but close the socket too early, slack sometimes
+     * drops the request entirely.
+     */
+    protected function finalizeWrite()
+    {
+        $res = $this->getResource();
+        if (is_resource($res)) {
+            @fread($res, 2048);
+        }
+        $this->closeSocket();
+    }
+
+    /**
+     * Returned a Slack message attachment color associated with
+     * provided level.
+     *
+     * @param  int    $level
+     * @return string
+     * @deprecated Use underlying SlackRecord instead
+     */
+    protected function getAttachmentColor($level)
+    {
+        trigger_error(
+            'SlackHandler::getAttachmentColor() is deprecated. Use underlying SlackRecord instead.',
+            E_USER_DEPRECATED
+        );
+
+        return $this->slackRecord->getAttachmentColor($level);
+    }
+
+    /**
+     * Stringifies an array of key/value pairs to be used in attachment fields
+     *
+     * @param  array  $fields
+     * @return string
+     * @deprecated Use underlying SlackRecord instead
+     */
+    protected function stringify($fields)
+    {
+        trigger_error(
+            'SlackHandler::stringify() is deprecated. Use underlying SlackRecord instead.',
+            E_USER_DEPRECATED
+        );
+
+        return $this->slackRecord->stringify($fields);
+    }
+
+    public function setFormatter(FormatterInterface $formatter)
+    {
+        parent::setFormatter($formatter);
+        $this->slackRecord->setFormatter($formatter);
+
+        return $this;
+    }
+
+    public function getFormatter()
+    {
+        $formatter = parent::getFormatter();
+        $this->slackRecord->setFormatter($formatter);
+
+        return $formatter;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SlackWebhookHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SlackWebhookHandler.php
new file mode 100644
index 0000000..9a1bbb4
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SlackWebhookHandler.php
@@ -0,0 +1,115 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\FormatterInterface;
+use Monolog\Logger;
+use Monolog\Handler\Slack\SlackRecord;
+
+/**
+ * Sends notifications through Slack Webhooks
+ *
+ * @author Haralan Dobrev <hkdobrev@gmail.com>
+ * @see    https://api.slack.com/incoming-webhooks
+ */
+class SlackWebhookHandler extends AbstractProcessingHandler
+{
+    /**
+     * Slack Webhook token
+     * @var string
+     */
+    private $webhookUrl;
+
+    /**
+     * Instance of the SlackRecord util class preparing data for Slack API.
+     * @var SlackRecord
+     */
+    private $slackRecord;
+
+    /**
+     * @param  string      $webhookUrl             Slack Webhook URL
+     * @param  string|null $channel                Slack channel (encoded ID or name)
+     * @param  string|null $username               Name of a bot
+     * @param  bool        $useAttachment          Whether the message should be added to Slack as attachment (plain text otherwise)
+     * @param  string|null $iconEmoji              The emoji name to use (or null)
+     * @param  bool        $useShortAttachment     Whether the the context/extra messages added to Slack as attachments are in a short style
+     * @param  bool        $includeContextAndExtra Whether the attachment should include context and extra data
+     * @param  int         $level                  The minimum logging level at which this handler will be triggered
+     * @param  bool        $bubble                 Whether the messages that are handled can bubble up the stack or not
+     * @param  array       $excludeFields          Dot separated list of fields to exclude from slack message. E.g. ['context.field1', 'extra.field2']
+     */
+    public function __construct($webhookUrl, $channel = null, $username = null, $useAttachment = true, $iconEmoji = null, $useShortAttachment = false, $includeContextAndExtra = false, $level = Logger::CRITICAL, $bubble = true, array $excludeFields = array())
+    {
+        parent::__construct($level, $bubble);
+
+        $this->webhookUrl = $webhookUrl;
+
+        $this->slackRecord = new SlackRecord(
+            $channel,
+            $username,
+            $useAttachment,
+            $iconEmoji,
+            $useShortAttachment,
+            $includeContextAndExtra,
+            $excludeFields,
+            $this->formatter
+        );
+    }
+
+    public function getSlackRecord()
+    {
+        return $this->slackRecord;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param array $record
+     */
+    protected function write(array $record)
+    {
+        $postData = $this->slackRecord->getSlackData($record);
+        $postString = json_encode($postData);
+
+        $ch = curl_init();
+        $options = array(
+            CURLOPT_URL => $this->webhookUrl,
+            CURLOPT_POST => true,
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_HTTPHEADER => array('Content-type: application/json'),
+            CURLOPT_POSTFIELDS => $postString
+        );
+        if (defined('CURLOPT_SAFE_UPLOAD')) {
+            $options[CURLOPT_SAFE_UPLOAD] = true;
+        }
+
+        curl_setopt_array($ch, $options);
+
+        Curl\Util::execute($ch);
+    }
+
+    public function setFormatter(FormatterInterface $formatter)
+    {
+        parent::setFormatter($formatter);
+        $this->slackRecord->setFormatter($formatter);
+
+        return $this;
+    }
+
+    public function getFormatter()
+    {
+        $formatter = parent::getFormatter();
+        $this->slackRecord->setFormatter($formatter);
+
+        return $formatter;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SlackbotHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SlackbotHandler.php
new file mode 100644
index 0000000..baead52
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SlackbotHandler.php
@@ -0,0 +1,80 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Sends notifications through Slack's Slackbot
+ *
+ * @author Haralan Dobrev <hkdobrev@gmail.com>
+ * @see    https://slack.com/apps/A0F81R8ET-slackbot
+ */
+class SlackbotHandler extends AbstractProcessingHandler
+{
+    /**
+     * The slug of the Slack team
+     * @var string
+     */
+    private $slackTeam;
+
+    /**
+     * Slackbot token
+     * @var string
+     */
+    private $token;
+
+    /**
+     * Slack channel name
+     * @var string
+     */
+    private $channel;
+
+    /**
+     * @param  string $slackTeam Slack team slug
+     * @param  string $token     Slackbot token
+     * @param  string $channel   Slack channel (encoded ID or name)
+     * @param  int    $level     The minimum logging level at which this handler will be triggered
+     * @param  bool   $bubble    Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct($slackTeam, $token, $channel, $level = Logger::CRITICAL, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+
+        $this->slackTeam = $slackTeam;
+        $this->token = $token;
+        $this->channel = $channel;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param array $record
+     */
+    protected function write(array $record)
+    {
+        $slackbotUrl = sprintf(
+            'https://%s.slack.com/services/hooks/slackbot?token=%s&channel=%s',
+            $this->slackTeam,
+            $this->token,
+            $this->channel
+        );
+
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, $slackbotUrl);
+        curl_setopt($ch, CURLOPT_POST, true);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, $record['message']);
+
+        Curl\Util::execute($ch);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SocketHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SocketHandler.php
new file mode 100644
index 0000000..7a61bf4
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SocketHandler.php
@@ -0,0 +1,346 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Stores to any socket - uses fsockopen() or pfsockopen().
+ *
+ * @author Pablo de Leon Belloc <pablolb@gmail.com>
+ * @see    http://php.net/manual/en/function.fsockopen.php
+ */
+class SocketHandler extends AbstractProcessingHandler
+{
+    private $connectionString;
+    private $connectionTimeout;
+    private $resource;
+    private $timeout = 0;
+    private $writingTimeout = 10;
+    private $lastSentBytes = null;
+    private $persistent = false;
+    private $errno;
+    private $errstr;
+    private $lastWritingAt;
+
+    /**
+     * @param string  $connectionString Socket connection string
+     * @param int     $level            The minimum logging level at which this handler will be triggered
+     * @param Boolean $bubble           Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct($connectionString, $level = Logger::DEBUG, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+        $this->connectionString = $connectionString;
+        $this->connectionTimeout = (float) ini_get('default_socket_timeout');
+    }
+
+    /**
+     * Connect (if necessary) and write to the socket
+     *
+     * @param array $record
+     *
+     * @throws \UnexpectedValueException
+     * @throws \RuntimeException
+     */
+    protected function write(array $record)
+    {
+        $this->connectIfNotConnected();
+        $data = $this->generateDataStream($record);
+        $this->writeToSocket($data);
+    }
+
+    /**
+     * We will not close a PersistentSocket instance so it can be reused in other requests.
+     */
+    public function close()
+    {
+        if (!$this->isPersistent()) {
+            $this->closeSocket();
+        }
+    }
+
+    /**
+     * Close socket, if open
+     */
+    public function closeSocket()
+    {
+        if (is_resource($this->resource)) {
+            fclose($this->resource);
+            $this->resource = null;
+        }
+    }
+
+    /**
+     * Set socket connection to nbe persistent. It only has effect before the connection is initiated.
+     *
+     * @param bool $persistent
+     */
+    public function setPersistent($persistent)
+    {
+        $this->persistent = (boolean) $persistent;
+    }
+
+    /**
+     * Set connection timeout.  Only has effect before we connect.
+     *
+     * @param float $seconds
+     *
+     * @see http://php.net/manual/en/function.fsockopen.php
+     */
+    public function setConnectionTimeout($seconds)
+    {
+        $this->validateTimeout($seconds);
+        $this->connectionTimeout = (float) $seconds;
+    }
+
+    /**
+     * Set write timeout. Only has effect before we connect.
+     *
+     * @param float $seconds
+     *
+     * @see http://php.net/manual/en/function.stream-set-timeout.php
+     */
+    public function setTimeout($seconds)
+    {
+        $this->validateTimeout($seconds);
+        $this->timeout = (float) $seconds;
+    }
+
+    /**
+     * Set writing timeout. Only has effect during connection in the writing cycle.
+     *
+     * @param float $seconds 0 for no timeout
+     */
+    public function setWritingTimeout($seconds)
+    {
+        $this->validateTimeout($seconds);
+        $this->writingTimeout = (float) $seconds;
+    }
+
+    /**
+     * Get current connection string
+     *
+     * @return string
+     */
+    public function getConnectionString()
+    {
+        return $this->connectionString;
+    }
+
+    /**
+     * Get persistent setting
+     *
+     * @return bool
+     */
+    public function isPersistent()
+    {
+        return $this->persistent;
+    }
+
+    /**
+     * Get current connection timeout setting
+     *
+     * @return float
+     */
+    public function getConnectionTimeout()
+    {
+        return $this->connectionTimeout;
+    }
+
+    /**
+     * Get current in-transfer timeout
+     *
+     * @return float
+     */
+    public function getTimeout()
+    {
+        return $this->timeout;
+    }
+
+    /**
+     * Get current local writing timeout
+     *
+     * @return float
+     */
+    public function getWritingTimeout()
+    {
+        return $this->writingTimeout;
+    }
+
+    /**
+     * Check to see if the socket is currently available.
+     *
+     * UDP might appear to be connected but might fail when writing.  See http://php.net/fsockopen for details.
+     *
+     * @return bool
+     */
+    public function isConnected()
+    {
+        return is_resource($this->resource)
+            && !feof($this->resource);  // on TCP - other party can close connection.
+    }
+
+    /**
+     * Wrapper to allow mocking
+     */
+    protected function pfsockopen()
+    {
+        return @pfsockopen($this->connectionString, -1, $this->errno, $this->errstr, $this->connectionTimeout);
+    }
+
+    /**
+     * Wrapper to allow mocking
+     */
+    protected function fsockopen()
+    {
+        return @fsockopen($this->connectionString, -1, $this->errno, $this->errstr, $this->connectionTimeout);
+    }
+
+    /**
+     * Wrapper to allow mocking
+     *
+     * @see http://php.net/manual/en/function.stream-set-timeout.php
+     */
+    protected function streamSetTimeout()
+    {
+        $seconds = floor($this->timeout);
+        $microseconds = round(($this->timeout - $seconds) * 1e6);
+
+        return stream_set_timeout($this->resource, $seconds, $microseconds);
+    }
+
+    /**
+     * Wrapper to allow mocking
+     */
+    protected function fwrite($data)
+    {
+        return @fwrite($this->resource, $data);
+    }
+
+    /**
+     * Wrapper to allow mocking
+     */
+    protected function streamGetMetadata()
+    {
+        return stream_get_meta_data($this->resource);
+    }
+
+    private function validateTimeout($value)
+    {
+        $ok = filter_var($value, FILTER_VALIDATE_FLOAT);
+        if ($ok === false || $value < 0) {
+            throw new \InvalidArgumentException("Timeout must be 0 or a positive float (got $value)");
+        }
+    }
+
+    private function connectIfNotConnected()
+    {
+        if ($this->isConnected()) {
+            return;
+        }
+        $this->connect();
+    }
+
+    protected function generateDataStream($record)
+    {
+        return (string) $record['formatted'];
+    }
+
+    /**
+     * @return resource|null
+     */
+    protected function getResource()
+    {
+        return $this->resource;
+    }
+
+    private function connect()
+    {
+        $this->createSocketResource();
+        $this->setSocketTimeout();
+    }
+
+    private function createSocketResource()
+    {
+        if ($this->isPersistent()) {
+            $resource = $this->pfsockopen();
+        } else {
+            $resource = $this->fsockopen();
+        }
+        if (!$resource) {
+            throw new \UnexpectedValueException("Failed connecting to $this->connectionString ($this->errno: $this->errstr)");
+        }
+        $this->resource = $resource;
+    }
+
+    private function setSocketTimeout()
+    {
+        if (!$this->streamSetTimeout()) {
+            throw new \UnexpectedValueException("Failed setting timeout with stream_set_timeout()");
+        }
+    }
+
+    private function writeToSocket($data)
+    {
+        $length = strlen($data);
+        $sent = 0;
+        $this->lastSentBytes = $sent;
+        while ($this->isConnected() && $sent < $length) {
+            if (0 == $sent) {
+                $chunk = $this->fwrite($data);
+            } else {
+                $chunk = $this->fwrite(substr($data, $sent));
+            }
+            if ($chunk === false) {
+                throw new \RuntimeException("Could not write to socket");
+            }
+            $sent += $chunk;
+            $socketInfo = $this->streamGetMetadata();
+            if ($socketInfo['timed_out']) {
+                throw new \RuntimeException("Write timed-out");
+            }
+
+            if ($this->writingIsTimedOut($sent)) {
+                throw new \RuntimeException("Write timed-out, no data sent for `{$this->writingTimeout}` seconds, probably we got disconnected (sent $sent of $length)");
+            }
+        }
+        if (!$this->isConnected() && $sent < $length) {
+            throw new \RuntimeException("End-of-file reached, probably we got disconnected (sent $sent of $length)");
+        }
+    }
+
+    private function writingIsTimedOut($sent)
+    {
+        $writingTimeout = (int) floor($this->writingTimeout);
+        if (0 === $writingTimeout) {
+            return false;
+        }
+
+        if ($sent !== $this->lastSentBytes) {
+            $this->lastWritingAt = time();
+            $this->lastSentBytes = $sent;
+
+            return false;
+        } else {
+            usleep(100);
+        }
+
+        if ((time() - $this->lastWritingAt) >= $writingTimeout) {
+            $this->closeSocket();
+
+            return true;
+        }
+
+        return false;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php
new file mode 100644
index 0000000..09a1573
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/StreamHandler.php
@@ -0,0 +1,176 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Stores to any stream resource
+ *
+ * Can be used to store into php://stderr, remote and local files, etc.
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class StreamHandler extends AbstractProcessingHandler
+{
+    protected $stream;
+    protected $url;
+    private $errorMessage;
+    protected $filePermission;
+    protected $useLocking;
+    private $dirCreated;
+
+    /**
+     * @param resource|string $stream
+     * @param int             $level          The minimum logging level at which this handler will be triggered
+     * @param Boolean         $bubble         Whether the messages that are handled can bubble up the stack or not
+     * @param int|null        $filePermission Optional file permissions (default (0644) are only for owner read/write)
+     * @param Boolean         $useLocking     Try to lock log file before doing any writes
+     *
+     * @throws \Exception                If a missing directory is not buildable
+     * @throws \InvalidArgumentException If stream is not a resource or string
+     */
+    public function __construct($stream, $level = Logger::DEBUG, $bubble = true, $filePermission = null, $useLocking = false)
+    {
+        parent::__construct($level, $bubble);
+        if (is_resource($stream)) {
+            $this->stream = $stream;
+        } elseif (is_string($stream)) {
+            $this->url = $stream;
+        } else {
+            throw new \InvalidArgumentException('A stream must either be a resource or a string.');
+        }
+
+        $this->filePermission = $filePermission;
+        $this->useLocking = $useLocking;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        if ($this->url && is_resource($this->stream)) {
+            fclose($this->stream);
+        }
+        $this->stream = null;
+    }
+
+    /**
+     * Return the currently active stream if it is open
+     *
+     * @return resource|null
+     */
+    public function getStream()
+    {
+        return $this->stream;
+    }
+
+    /**
+     * Return the stream URL if it was configured with a URL and not an active resource
+     *
+     * @return string|null
+     */
+    public function getUrl()
+    {
+        return $this->url;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        if (!is_resource($this->stream)) {
+            if (null === $this->url || '' === $this->url) {
+                throw new \LogicException('Missing stream url, the stream can not be opened. This may be caused by a premature call to close().');
+            }
+            $this->createDir();
+            $this->errorMessage = null;
+            set_error_handler(array($this, 'customErrorHandler'));
+            $this->stream = fopen($this->url, 'a');
+            if ($this->filePermission !== null) {
+                @chmod($this->url, $this->filePermission);
+            }
+            restore_error_handler();
+            if (!is_resource($this->stream)) {
+                $this->stream = null;
+                throw new \UnexpectedValueException(sprintf('The stream or file "%s" could not be opened: '.$this->errorMessage, $this->url));
+            }
+        }
+
+        if ($this->useLocking) {
+            // ignoring errors here, there's not much we can do about them
+            flock($this->stream, LOCK_EX);
+        }
+
+        $this->streamWrite($this->stream, $record);
+
+        if ($this->useLocking) {
+            flock($this->stream, LOCK_UN);
+        }
+    }
+
+    /**
+     * Write to stream
+     * @param resource $stream
+     * @param array $record
+     */
+    protected function streamWrite($stream, array $record)
+    {
+        fwrite($stream, (string) $record['formatted']);
+    }
+
+    private function customErrorHandler($code, $msg)
+    {
+        $this->errorMessage = preg_replace('{^(fopen|mkdir)\(.*?\): }', '', $msg);
+    }
+
+    /**
+     * @param string $stream
+     *
+     * @return null|string
+     */
+    private function getDirFromStream($stream)
+    {
+        $pos = strpos($stream, '://');
+        if ($pos === false) {
+            return dirname($stream);
+        }
+
+        if ('file://' === substr($stream, 0, 7)) {
+            return dirname(substr($stream, 7));
+        }
+
+        return;
+    }
+
+    private function createDir()
+    {
+        // Do not try to create dir if it has already been tried.
+        if ($this->dirCreated) {
+            return;
+        }
+
+        $dir = $this->getDirFromStream($this->url);
+        if (null !== $dir && !is_dir($dir)) {
+            $this->errorMessage = null;
+            set_error_handler(array($this, 'customErrorHandler'));
+            $status = mkdir($dir, 0777, true);
+            restore_error_handler();
+            if (false === $status) {
+                throw new \UnexpectedValueException(sprintf('There is no existing directory at "%s" and its not buildable: '.$this->errorMessage, $dir));
+            }
+        }
+        $this->dirCreated = true;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SwiftMailerHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SwiftMailerHandler.php
new file mode 100644
index 0000000..72f44a5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SwiftMailerHandler.php
@@ -0,0 +1,99 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\LineFormatter;
+use Swift;
+
+/**
+ * SwiftMailerHandler uses Swift_Mailer to send the emails
+ *
+ * @author Gyula Sallai
+ */
+class SwiftMailerHandler extends MailHandler
+{
+    protected $mailer;
+    private $messageTemplate;
+
+    /**
+     * @param \Swift_Mailer           $mailer  The mailer to use
+     * @param callable|\Swift_Message $message An example message for real messages, only the body will be replaced
+     * @param int                     $level   The minimum logging level at which this handler will be triggered
+     * @param Boolean                 $bubble  Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct(\Swift_Mailer $mailer, $message, $level = Logger::ERROR, $bubble = true)
+    {
+        parent::__construct($level, $bubble);
+
+        $this->mailer = $mailer;
+        $this->messageTemplate = $message;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function send($content, array $records)
+    {
+        $this->mailer->send($this->buildMessage($content, $records));
+    }
+
+    /**
+     * Creates instance of Swift_Message to be sent
+     *
+     * @param  string         $content formatted email body to be sent
+     * @param  array          $records Log records that formed the content
+     * @return \Swift_Message
+     */
+    protected function buildMessage($content, array $records)
+    {
+        $message = null;
+        if ($this->messageTemplate instanceof \Swift_Message) {
+            $message = clone $this->messageTemplate;
+            $message->generateId();
+        } elseif (is_callable($this->messageTemplate)) {
+            $message = call_user_func($this->messageTemplate, $content, $records);
+        }
+
+        if (!$message instanceof \Swift_Message) {
+            throw new \InvalidArgumentException('Could not resolve message as instance of Swift_Message or a callable returning it');
+        }
+
+        if ($records) {
+            $subjectFormatter = new LineFormatter($message->getSubject());
+            $message->setSubject($subjectFormatter->format($this->getHighestRecord($records)));
+        }
+
+        $message->setBody($content);
+        if (version_compare(Swift::VERSION, '6.0.0', '>=')) {
+            $message->setDate(new \DateTimeImmutable());
+        } else {
+            $message->setDate(time());
+        }
+
+        return $message;
+    }
+
+    /**
+     * BC getter, to be removed in 2.0
+     */
+    public function __get($name)
+    {
+        if ($name === 'message') {
+            trigger_error('SwiftMailerHandler->message is deprecated, use ->buildMessage() instead to retrieve the message', E_USER_DEPRECATED);
+
+            return $this->buildMessage(null, array());
+        }
+
+        throw new \InvalidArgumentException('Invalid property '.$name);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SyslogHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SyslogHandler.php
new file mode 100644
index 0000000..376bc3b
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SyslogHandler.php
@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+
+/**
+ * Logs to syslog service.
+ *
+ * usage example:
+ *
+ *   $log = new Logger('application');
+ *   $syslog = new SyslogHandler('myfacility', 'local6');
+ *   $formatter = new LineFormatter("%channel%.%level_name%: %message% %extra%");
+ *   $syslog->setFormatter($formatter);
+ *   $log->pushHandler($syslog);
+ *
+ * @author Sven Paulus <sven@karlsruhe.org>
+ */
+class SyslogHandler extends AbstractSyslogHandler
+{
+    protected $ident;
+    protected $logopts;
+
+    /**
+     * @param string  $ident
+     * @param mixed   $facility
+     * @param int     $level    The minimum logging level at which this handler will be triggered
+     * @param Boolean $bubble   Whether the messages that are handled can bubble up the stack or not
+     * @param int     $logopts  Option flags for the openlog() call, defaults to LOG_PID
+     */
+    public function __construct($ident, $facility = LOG_USER, $level = Logger::DEBUG, $bubble = true, $logopts = LOG_PID)
+    {
+        parent::__construct($facility, $level, $bubble);
+
+        $this->ident = $ident;
+        $this->logopts = $logopts;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function close()
+    {
+        closelog();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        if (!openlog($this->ident, $this->logopts, $this->facility)) {
+            throw new \LogicException('Can\'t open syslog for ident "'.$this->ident.'" and facility "'.$this->facility.'"');
+        }
+        syslog($this->logLevels[$record['level']], (string) $record['formatted']);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SyslogUdp/UdpSocket.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SyslogUdp/UdpSocket.php
new file mode 100644
index 0000000..3bff085
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SyslogUdp/UdpSocket.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler\SyslogUdp;
+
+class UdpSocket
+{
+    const DATAGRAM_MAX_LENGTH = 65023;
+
+    protected $ip;
+    protected $port;
+    protected $socket;
+
+    public function __construct($ip, $port = 514)
+    {
+        $this->ip = $ip;
+        $this->port = $port;
+        $this->socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
+    }
+
+    public function write($line, $header = "")
+    {
+        $this->send($this->assembleMessage($line, $header));
+    }
+
+    public function close()
+    {
+        if (is_resource($this->socket)) {
+            socket_close($this->socket);
+            $this->socket = null;
+        }
+    }
+
+    protected function send($chunk)
+    {
+        if (!is_resource($this->socket)) {
+            throw new \LogicException('The UdpSocket to '.$this->ip.':'.$this->port.' has been closed and can not be written to anymore');
+        }
+        socket_sendto($this->socket, $chunk, strlen($chunk), $flags = 0, $this->ip, $this->port);
+    }
+
+    protected function assembleMessage($line, $header)
+    {
+        $chunkSize = self::DATAGRAM_MAX_LENGTH - strlen($header);
+
+        return $header . substr($line, 0, $chunkSize);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SyslogUdpHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SyslogUdpHandler.php
new file mode 100644
index 0000000..4718711
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/SyslogUdpHandler.php
@@ -0,0 +1,103 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Handler\SyslogUdp\UdpSocket;
+
+/**
+ * A Handler for logging to a remote syslogd server.
+ *
+ * @author Jesper Skovgaard Nielsen <nulpunkt@gmail.com>
+ */
+class SyslogUdpHandler extends AbstractSyslogHandler
+{
+    protected $socket;
+    protected $ident;
+
+    /**
+     * @param string  $host
+     * @param int     $port
+     * @param mixed   $facility
+     * @param int     $level    The minimum logging level at which this handler will be triggered
+     * @param Boolean $bubble   Whether the messages that are handled can bubble up the stack or not
+     * @param string  $ident    Program name or tag for each log message.
+     */
+    public function __construct($host, $port = 514, $facility = LOG_USER, $level = Logger::DEBUG, $bubble = true, $ident = 'php')
+    {
+        parent::__construct($facility, $level, $bubble);
+
+        $this->ident = $ident;
+
+        $this->socket = new UdpSocket($host, $port ?: 514);
+    }
+
+    protected function write(array $record)
+    {
+        $lines = $this->splitMessageIntoLines($record['formatted']);
+
+        $header = $this->makeCommonSyslogHeader($this->logLevels[$record['level']]);
+
+        foreach ($lines as $line) {
+            $this->socket->write($line, $header);
+        }
+    }
+
+    public function close()
+    {
+        $this->socket->close();
+    }
+
+    private function splitMessageIntoLines($message)
+    {
+        if (is_array($message)) {
+            $message = implode("\n", $message);
+        }
+
+        return preg_split('/$\R?^/m', $message, -1, PREG_SPLIT_NO_EMPTY);
+    }
+
+    /**
+     * Make common syslog header (see rfc5424)
+     */
+    protected function makeCommonSyslogHeader($severity)
+    {
+        $priority = $severity + $this->facility;
+
+        if (!$pid = getmypid()) {
+            $pid = '-';
+        }
+
+        if (!$hostname = gethostname()) {
+            $hostname = '-';
+        }
+
+        return "<$priority>1 " .
+            $this->getDateTime() . " " .
+            $hostname . " " .
+            $this->ident . " " .
+            $pid . " - - ";
+    }
+
+    protected function getDateTime()
+    {
+        return date(\DateTime::RFC3339);
+    }
+
+    /**
+     * Inject your own socket, mainly used for testing
+     */
+    public function setSocket($socket)
+    {
+        $this->socket = $socket;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/TestHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/TestHandler.php
new file mode 100644
index 0000000..e39cfc6
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/TestHandler.php
@@ -0,0 +1,154 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+/**
+ * Used for testing purposes.
+ *
+ * It records all records and gives you access to them for verification.
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * @method bool hasEmergency($record)
+ * @method bool hasAlert($record)
+ * @method bool hasCritical($record)
+ * @method bool hasError($record)
+ * @method bool hasWarning($record)
+ * @method bool hasNotice($record)
+ * @method bool hasInfo($record)
+ * @method bool hasDebug($record)
+ *
+ * @method bool hasEmergencyRecords()
+ * @method bool hasAlertRecords()
+ * @method bool hasCriticalRecords()
+ * @method bool hasErrorRecords()
+ * @method bool hasWarningRecords()
+ * @method bool hasNoticeRecords()
+ * @method bool hasInfoRecords()
+ * @method bool hasDebugRecords()
+ *
+ * @method bool hasEmergencyThatContains($message)
+ * @method bool hasAlertThatContains($message)
+ * @method bool hasCriticalThatContains($message)
+ * @method bool hasErrorThatContains($message)
+ * @method bool hasWarningThatContains($message)
+ * @method bool hasNoticeThatContains($message)
+ * @method bool hasInfoThatContains($message)
+ * @method bool hasDebugThatContains($message)
+ *
+ * @method bool hasEmergencyThatMatches($message)
+ * @method bool hasAlertThatMatches($message)
+ * @method bool hasCriticalThatMatches($message)
+ * @method bool hasErrorThatMatches($message)
+ * @method bool hasWarningThatMatches($message)
+ * @method bool hasNoticeThatMatches($message)
+ * @method bool hasInfoThatMatches($message)
+ * @method bool hasDebugThatMatches($message)
+ *
+ * @method bool hasEmergencyThatPasses($message)
+ * @method bool hasAlertThatPasses($message)
+ * @method bool hasCriticalThatPasses($message)
+ * @method bool hasErrorThatPasses($message)
+ * @method bool hasWarningThatPasses($message)
+ * @method bool hasNoticeThatPasses($message)
+ * @method bool hasInfoThatPasses($message)
+ * @method bool hasDebugThatPasses($message)
+ */
+class TestHandler extends AbstractProcessingHandler
+{
+    protected $records = array();
+    protected $recordsByLevel = array();
+
+    public function getRecords()
+    {
+        return $this->records;
+    }
+
+    public function clear()
+    {
+        $this->records = array();
+        $this->recordsByLevel = array();
+    }
+
+    public function hasRecords($level)
+    {
+        return isset($this->recordsByLevel[$level]);
+    }
+
+    public function hasRecord($record, $level)
+    {
+        if (is_array($record)) {
+            $record = $record['message'];
+        }
+
+        return $this->hasRecordThatPasses(function ($rec) use ($record) {
+            return $rec['message'] === $record;
+        }, $level);
+    }
+
+    public function hasRecordThatContains($message, $level)
+    {
+        return $this->hasRecordThatPasses(function ($rec) use ($message) {
+            return strpos($rec['message'], $message) !== false;
+        }, $level);
+    }
+
+    public function hasRecordThatMatches($regex, $level)
+    {
+        return $this->hasRecordThatPasses(function ($rec) use ($regex) {
+            return preg_match($regex, $rec['message']) > 0;
+        }, $level);
+    }
+
+    public function hasRecordThatPasses($predicate, $level)
+    {
+        if (!is_callable($predicate)) {
+            throw new \InvalidArgumentException("Expected a callable for hasRecordThatSucceeds");
+        }
+
+        if (!isset($this->recordsByLevel[$level])) {
+            return false;
+        }
+
+        foreach ($this->recordsByLevel[$level] as $i => $rec) {
+            if (call_user_func($predicate, $rec, $i)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        $this->recordsByLevel[$record['level']][] = $record;
+        $this->records[] = $record;
+    }
+
+    public function __call($method, $args)
+    {
+        if (preg_match('/(.*)(Debug|Info|Notice|Warning|Error|Critical|Alert|Emergency)(.*)/', $method, $matches) > 0) {
+            $genericMethod = $matches[1] . ('Records' !== $matches[3] ? 'Record' : '') . $matches[3];
+            $level = constant('Monolog\Logger::' . strtoupper($matches[2]));
+            if (method_exists($this, $genericMethod)) {
+                $args[] = $level;
+
+                return call_user_func_array(array($this, $genericMethod), $args);
+            }
+        }
+
+        throw new \BadMethodCallException('Call to undefined method ' . get_class($this) . '::' . $method . '()');
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/WhatFailureGroupHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/WhatFailureGroupHandler.php
new file mode 100644
index 0000000..2732ba3
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/WhatFailureGroupHandler.php
@@ -0,0 +1,61 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+/**
+ * Forwards records to multiple handlers suppressing failures of each handler
+ * and continuing through to give every handler a chance to succeed.
+ *
+ * @author Craig D'Amelio <craig@damelio.ca>
+ */
+class WhatFailureGroupHandler extends GroupHandler
+{
+    /**
+     * {@inheritdoc}
+     */
+    public function handle(array $record)
+    {
+        if ($this->processors) {
+            foreach ($this->processors as $processor) {
+                $record = call_user_func($processor, $record);
+            }
+        }
+
+        foreach ($this->handlers as $handler) {
+            try {
+                $handler->handle($record);
+            } catch (\Exception $e) {
+                // What failure?
+            } catch (\Throwable $e) {
+                // What failure?
+            }
+        }
+
+        return false === $this->bubble;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        foreach ($this->handlers as $handler) {
+            try {
+                $handler->handleBatch($records);
+            } catch (\Exception $e) {
+                // What failure?
+            } catch (\Throwable $e) {
+                // What failure?
+            }
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ZendMonitorHandler.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ZendMonitorHandler.php
new file mode 100644
index 0000000..f22cf21
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Handler/ZendMonitorHandler.php
@@ -0,0 +1,95 @@
+<?php
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Formatter\NormalizerFormatter;
+use Monolog\Logger;
+
+/**
+ * Handler sending logs to Zend Monitor
+ *
+ * @author  Christian Bergau <cbergau86@gmail.com>
+ */
+class ZendMonitorHandler extends AbstractProcessingHandler
+{
+    /**
+     * Monolog level / ZendMonitor Custom Event priority map
+     *
+     * @var array
+     */
+    protected $levelMap = array(
+        Logger::DEBUG     => 1,
+        Logger::INFO      => 2,
+        Logger::NOTICE    => 3,
+        Logger::WARNING   => 4,
+        Logger::ERROR     => 5,
+        Logger::CRITICAL  => 6,
+        Logger::ALERT     => 7,
+        Logger::EMERGENCY => 0,
+    );
+
+    /**
+     * Construct
+     *
+     * @param  int                       $level
+     * @param  bool                      $bubble
+     * @throws MissingExtensionException
+     */
+    public function __construct($level = Logger::DEBUG, $bubble = true)
+    {
+        if (!function_exists('zend_monitor_custom_event')) {
+            throw new MissingExtensionException('You must have Zend Server installed in order to use this handler');
+        }
+        parent::__construct($level, $bubble);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function write(array $record)
+    {
+        $this->writeZendMonitorCustomEvent(
+            $this->levelMap[$record['level']],
+            $record['message'],
+            $record['formatted']
+        );
+    }
+
+    /**
+     * Write a record to Zend Monitor
+     *
+     * @param int    $level
+     * @param string $message
+     * @param array  $formatted
+     */
+    protected function writeZendMonitorCustomEvent($level, $message, $formatted)
+    {
+        zend_monitor_custom_event($level, $message, $formatted);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getDefaultFormatter()
+    {
+        return new NormalizerFormatter();
+    }
+
+    /**
+     * Get the level map
+     *
+     * @return array
+     */
+    public function getLevelMap()
+    {
+        return $this->levelMap;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Logger.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Logger.php
new file mode 100644
index 0000000..49d00af
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Logger.php
@@ -0,0 +1,700 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog;
+
+use Monolog\Handler\HandlerInterface;
+use Monolog\Handler\StreamHandler;
+use Psr\Log\LoggerInterface;
+use Psr\Log\InvalidArgumentException;
+
+/**
+ * Monolog log channel
+ *
+ * It contains a stack of Handlers and a stack of Processors,
+ * and uses them to store records that are added to it.
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class Logger implements LoggerInterface
+{
+    /**
+     * Detailed debug information
+     */
+    const DEBUG = 100;
+
+    /**
+     * Interesting events
+     *
+     * Examples: User logs in, SQL logs.
+     */
+    const INFO = 200;
+
+    /**
+     * Uncommon events
+     */
+    const NOTICE = 250;
+
+    /**
+     * Exceptional occurrences that are not errors
+     *
+     * Examples: Use of deprecated APIs, poor use of an API,
+     * undesirable things that are not necessarily wrong.
+     */
+    const WARNING = 300;
+
+    /**
+     * Runtime errors
+     */
+    const ERROR = 400;
+
+    /**
+     * Critical conditions
+     *
+     * Example: Application component unavailable, unexpected exception.
+     */
+    const CRITICAL = 500;
+
+    /**
+     * Action must be taken immediately
+     *
+     * Example: Entire website down, database unavailable, etc.
+     * This should trigger the SMS alerts and wake you up.
+     */
+    const ALERT = 550;
+
+    /**
+     * Urgent alert.
+     */
+    const EMERGENCY = 600;
+
+    /**
+     * Monolog API version
+     *
+     * This is only bumped when API breaks are done and should
+     * follow the major version of the library
+     *
+     * @var int
+     */
+    const API = 1;
+
+    /**
+     * Logging levels from syslog protocol defined in RFC 5424
+     *
+     * @var array $levels Logging levels
+     */
+    protected static $levels = array(
+        self::DEBUG     => 'DEBUG',
+        self::INFO      => 'INFO',
+        self::NOTICE    => 'NOTICE',
+        self::WARNING   => 'WARNING',
+        self::ERROR     => 'ERROR',
+        self::CRITICAL  => 'CRITICAL',
+        self::ALERT     => 'ALERT',
+        self::EMERGENCY => 'EMERGENCY',
+    );
+
+    /**
+     * @var \DateTimeZone
+     */
+    protected static $timezone;
+
+    /**
+     * @var string
+     */
+    protected $name;
+
+    /**
+     * The handler stack
+     *
+     * @var HandlerInterface[]
+     */
+    protected $handlers;
+
+    /**
+     * Processors that will process all log records
+     *
+     * To process records of a single handler instead, add the processor on that specific handler
+     *
+     * @var callable[]
+     */
+    protected $processors;
+
+    /**
+     * @var bool
+     */
+    protected $microsecondTimestamps = true;
+
+    /**
+     * @param string             $name       The logging channel
+     * @param HandlerInterface[] $handlers   Optional stack of handlers, the first one in the array is called first, etc.
+     * @param callable[]         $processors Optional array of processors
+     */
+    public function __construct($name, array $handlers = array(), array $processors = array())
+    {
+        $this->name = $name;
+        $this->handlers = $handlers;
+        $this->processors = $processors;
+    }
+
+    /**
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * Return a new cloned instance with the name changed
+     *
+     * @return static
+     */
+    public function withName($name)
+    {
+        $new = clone $this;
+        $new->name = $name;
+
+        return $new;
+    }
+
+    /**
+     * Pushes a handler on to the stack.
+     *
+     * @param  HandlerInterface $handler
+     * @return $this
+     */
+    public function pushHandler(HandlerInterface $handler)
+    {
+        array_unshift($this->handlers, $handler);
+
+        return $this;
+    }
+
+    /**
+     * Pops a handler from the stack
+     *
+     * @return HandlerInterface
+     */
+    public function popHandler()
+    {
+        if (!$this->handlers) {
+            throw new \LogicException('You tried to pop from an empty handler stack.');
+        }
+
+        return array_shift($this->handlers);
+    }
+
+    /**
+     * Set handlers, replacing all existing ones.
+     *
+     * If a map is passed, keys will be ignored.
+     *
+     * @param  HandlerInterface[] $handlers
+     * @return $this
+     */
+    public function setHandlers(array $handlers)
+    {
+        $this->handlers = array();
+        foreach (array_reverse($handlers) as $handler) {
+            $this->pushHandler($handler);
+        }
+
+        return $this;
+    }
+
+    /**
+     * @return HandlerInterface[]
+     */
+    public function getHandlers()
+    {
+        return $this->handlers;
+    }
+
+    /**
+     * Adds a processor on to the stack.
+     *
+     * @param  callable $callback
+     * @return $this
+     */
+    public function pushProcessor($callback)
+    {
+        if (!is_callable($callback)) {
+            throw new \InvalidArgumentException('Processors must be valid callables (callback or object with an __invoke method), '.var_export($callback, true).' given');
+        }
+        array_unshift($this->processors, $callback);
+
+        return $this;
+    }
+
+    /**
+     * Removes the processor on top of the stack and returns it.
+     *
+     * @return callable
+     */
+    public function popProcessor()
+    {
+        if (!$this->processors) {
+            throw new \LogicException('You tried to pop from an empty processor stack.');
+        }
+
+        return array_shift($this->processors);
+    }
+
+    /**
+     * @return callable[]
+     */
+    public function getProcessors()
+    {
+        return $this->processors;
+    }
+
+    /**
+     * Control the use of microsecond resolution timestamps in the 'datetime'
+     * member of new records.
+     *
+     * Generating microsecond resolution timestamps by calling
+     * microtime(true), formatting the result via sprintf() and then parsing
+     * the resulting string via \DateTime::createFromFormat() can incur
+     * a measurable runtime overhead vs simple usage of DateTime to capture
+     * a second resolution timestamp in systems which generate a large number
+     * of log events.
+     *
+     * @param bool $micro True to use microtime() to create timestamps
+     */
+    public function useMicrosecondTimestamps($micro)
+    {
+        $this->microsecondTimestamps = (bool) $micro;
+    }
+
+    /**
+     * Adds a log record.
+     *
+     * @param  int     $level   The logging level
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addRecord($level, $message, array $context = array())
+    {
+        if (!$this->handlers) {
+            $this->pushHandler(new StreamHandler('php://stderr', static::DEBUG));
+        }
+
+        $levelName = static::getLevelName($level);
+
+        // check if any handler will handle this message so we can return early and save cycles
+        $handlerKey = null;
+        reset($this->handlers);
+        while ($handler = current($this->handlers)) {
+            if ($handler->isHandling(array('level' => $level))) {
+                $handlerKey = key($this->handlers);
+                break;
+            }
+
+            next($this->handlers);
+        }
+
+        if (null === $handlerKey) {
+            return false;
+        }
+
+        if (!static::$timezone) {
+            static::$timezone = new \DateTimeZone(date_default_timezone_get() ?: 'UTC');
+        }
+
+        // php7.1+ always has microseconds enabled, so we do not need this hack
+        if ($this->microsecondTimestamps && PHP_VERSION_ID < 70100) {
+            $ts = \DateTime::createFromFormat('U.u', sprintf('%.6F', microtime(true)), static::$timezone);
+        } else {
+            $ts = new \DateTime(null, static::$timezone);
+        }
+        $ts->setTimezone(static::$timezone);
+
+        $record = array(
+            'message' => (string) $message,
+            'context' => $context,
+            'level' => $level,
+            'level_name' => $levelName,
+            'channel' => $this->name,
+            'datetime' => $ts,
+            'extra' => array(),
+        );
+
+        foreach ($this->processors as $processor) {
+            $record = call_user_func($processor, $record);
+        }
+
+        while ($handler = current($this->handlers)) {
+            if (true === $handler->handle($record)) {
+                break;
+            }
+
+            next($this->handlers);
+        }
+
+        return true;
+    }
+
+    /**
+     * Adds a log record at the DEBUG level.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addDebug($message, array $context = array())
+    {
+        return $this->addRecord(static::DEBUG, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the INFO level.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addInfo($message, array $context = array())
+    {
+        return $this->addRecord(static::INFO, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the NOTICE level.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addNotice($message, array $context = array())
+    {
+        return $this->addRecord(static::NOTICE, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the WARNING level.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addWarning($message, array $context = array())
+    {
+        return $this->addRecord(static::WARNING, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the ERROR level.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addError($message, array $context = array())
+    {
+        return $this->addRecord(static::ERROR, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the CRITICAL level.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addCritical($message, array $context = array())
+    {
+        return $this->addRecord(static::CRITICAL, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the ALERT level.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addAlert($message, array $context = array())
+    {
+        return $this->addRecord(static::ALERT, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the EMERGENCY level.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function addEmergency($message, array $context = array())
+    {
+        return $this->addRecord(static::EMERGENCY, $message, $context);
+    }
+
+    /**
+     * Gets all supported logging levels.
+     *
+     * @return array Assoc array with human-readable level names => level codes.
+     */
+    public static function getLevels()
+    {
+        return array_flip(static::$levels);
+    }
+
+    /**
+     * Gets the name of the logging level.
+     *
+     * @param  int    $level
+     * @return string
+     */
+    public static function getLevelName($level)
+    {
+        if (!isset(static::$levels[$level])) {
+            throw new InvalidArgumentException('Level "'.$level.'" is not defined, use one of: '.implode(', ', array_keys(static::$levels)));
+        }
+
+        return static::$levels[$level];
+    }
+
+    /**
+     * Converts PSR-3 levels to Monolog ones if necessary
+     *
+     * @param string|int Level number (monolog) or name (PSR-3)
+     * @return int
+     */
+    public static function toMonologLevel($level)
+    {
+        if (is_string($level) && defined(__CLASS__.'::'.strtoupper($level))) {
+            return constant(__CLASS__.'::'.strtoupper($level));
+        }
+
+        return $level;
+    }
+
+    /**
+     * Checks whether the Logger has a handler that listens on the given level
+     *
+     * @param  int     $level
+     * @return Boolean
+     */
+    public function isHandling($level)
+    {
+        $record = array(
+            'level' => $level,
+        );
+
+        foreach ($this->handlers as $handler) {
+            if ($handler->isHandling($record)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Adds a log record at an arbitrary level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  mixed   $level   The log level
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function log($level, $message, array $context = array())
+    {
+        $level = static::toMonologLevel($level);
+
+        return $this->addRecord($level, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the DEBUG level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function debug($message, array $context = array())
+    {
+        return $this->addRecord(static::DEBUG, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the INFO level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function info($message, array $context = array())
+    {
+        return $this->addRecord(static::INFO, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the NOTICE level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function notice($message, array $context = array())
+    {
+        return $this->addRecord(static::NOTICE, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the WARNING level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function warn($message, array $context = array())
+    {
+        return $this->addRecord(static::WARNING, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the WARNING level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function warning($message, array $context = array())
+    {
+        return $this->addRecord(static::WARNING, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the ERROR level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function err($message, array $context = array())
+    {
+        return $this->addRecord(static::ERROR, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the ERROR level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function error($message, array $context = array())
+    {
+        return $this->addRecord(static::ERROR, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the CRITICAL level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function crit($message, array $context = array())
+    {
+        return $this->addRecord(static::CRITICAL, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the CRITICAL level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function critical($message, array $context = array())
+    {
+        return $this->addRecord(static::CRITICAL, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the ALERT level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function alert($message, array $context = array())
+    {
+        return $this->addRecord(static::ALERT, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the EMERGENCY level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function emerg($message, array $context = array())
+    {
+        return $this->addRecord(static::EMERGENCY, $message, $context);
+    }
+
+    /**
+     * Adds a log record at the EMERGENCY level.
+     *
+     * This method allows for compatibility with common interfaces.
+     *
+     * @param  string  $message The log message
+     * @param  array   $context The log context
+     * @return Boolean Whether the record has been processed
+     */
+    public function emergency($message, array $context = array())
+    {
+        return $this->addRecord(static::EMERGENCY, $message, $context);
+    }
+
+    /**
+     * Set the timezone to be used for the timestamp of log records.
+     *
+     * This is stored globally for all Logger instances
+     *
+     * @param \DateTimeZone $tz Timezone object
+     */
+    public static function setTimezone(\DateTimeZone $tz)
+    {
+        self::$timezone = $tz;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/GitProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/GitProcessor.php
new file mode 100644
index 0000000..1899400
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/GitProcessor.php
@@ -0,0 +1,64 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+use Monolog\Logger;
+
+/**
+ * Injects Git branch and Git commit SHA in all records
+ *
+ * @author Nick Otter
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class GitProcessor
+{
+    private $level;
+    private static $cache;
+
+    public function __construct($level = Logger::DEBUG)
+    {
+        $this->level = Logger::toMonologLevel($level);
+    }
+
+    /**
+     * @param  array $record
+     * @return array
+     */
+    public function __invoke(array $record)
+    {
+        // return if the level is not high enough
+        if ($record['level'] < $this->level) {
+            return $record;
+        }
+
+        $record['extra']['git'] = self::getGitInfo();
+
+        return $record;
+    }
+
+    private static function getGitInfo()
+    {
+        if (self::$cache) {
+            return self::$cache;
+        }
+
+        $branches = `git branch -v --no-abbrev`;
+        if (preg_match('{^\* (.+?)\s+([a-f0-9]{40})(?:\s|$)}m', $branches, $matches)) {
+            return self::$cache = array(
+                'branch' => $matches[1],
+                'commit' => $matches[2],
+            );
+        }
+
+        return self::$cache = array();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/IntrospectionProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/IntrospectionProcessor.php
new file mode 100644
index 0000000..2c07cae
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/IntrospectionProcessor.php
@@ -0,0 +1,112 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+use Monolog\Logger;
+
+/**
+ * Injects line/file:class/function where the log message came from
+ *
+ * Warning: This only works if the handler processes the logs directly.
+ * If you put the processor on a handler that is behind a FingersCrossedHandler
+ * for example, the processor will only be called once the trigger level is reached,
+ * and all the log records will have the same file/line/.. data from the call that
+ * triggered the FingersCrossedHandler.
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class IntrospectionProcessor
+{
+    private $level;
+
+    private $skipClassesPartials;
+
+    private $skipStackFramesCount;
+
+    private $skipFunctions = array(
+        'call_user_func',
+        'call_user_func_array',
+    );
+
+    public function __construct($level = Logger::DEBUG, array $skipClassesPartials = array(), $skipStackFramesCount = 0)
+    {
+        $this->level = Logger::toMonologLevel($level);
+        $this->skipClassesPartials = array_merge(array('Monolog\\'), $skipClassesPartials);
+        $this->skipStackFramesCount = $skipStackFramesCount;
+    }
+
+    /**
+     * @param  array $record
+     * @return array
+     */
+    public function __invoke(array $record)
+    {
+        // return if the level is not high enough
+        if ($record['level'] < $this->level) {
+            return $record;
+        }
+
+        /*
+        * http://php.net/manual/en/function.debug-backtrace.php
+        * As of 5.3.6, DEBUG_BACKTRACE_IGNORE_ARGS option was added.
+        * Any version less than 5.3.6 must use the DEBUG_BACKTRACE_IGNORE_ARGS constant value '2'.
+        */
+        $trace = debug_backtrace((PHP_VERSION_ID < 50306) ? 2 : DEBUG_BACKTRACE_IGNORE_ARGS);
+
+        // skip first since it's always the current method
+        array_shift($trace);
+        // the call_user_func call is also skipped
+        array_shift($trace);
+
+        $i = 0;
+
+        while ($this->isTraceClassOrSkippedFunction($trace, $i)) {
+            if (isset($trace[$i]['class'])) {
+                foreach ($this->skipClassesPartials as $part) {
+                    if (strpos($trace[$i]['class'], $part) !== false) {
+                        $i++;
+                        continue 2;
+                    }
+                }
+            } elseif (in_array($trace[$i]['function'], $this->skipFunctions)) {
+                $i++;
+                continue;
+            }
+
+            break;
+        }
+
+        $i += $this->skipStackFramesCount;
+
+        // we should have the call source now
+        $record['extra'] = array_merge(
+            $record['extra'],
+            array(
+                'file'      => isset($trace[$i - 1]['file']) ? $trace[$i - 1]['file'] : null,
+                'line'      => isset($trace[$i - 1]['line']) ? $trace[$i - 1]['line'] : null,
+                'class'     => isset($trace[$i]['class']) ? $trace[$i]['class'] : null,
+                'function'  => isset($trace[$i]['function']) ? $trace[$i]['function'] : null,
+            )
+        );
+
+        return $record;
+    }
+
+    private function isTraceClassOrSkippedFunction(array $trace, $index)
+    {
+        if (!isset($trace[$index])) {
+            return false;
+        }
+
+        return isset($trace[$index]['class']) || in_array($trace[$index]['function'], $this->skipFunctions);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MemoryPeakUsageProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MemoryPeakUsageProcessor.php
new file mode 100644
index 0000000..0543e92
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MemoryPeakUsageProcessor.php
@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+/**
+ * Injects memory_get_peak_usage in all records
+ *
+ * @see Monolog\Processor\MemoryProcessor::__construct() for options
+ * @author Rob Jensen
+ */
+class MemoryPeakUsageProcessor extends MemoryProcessor
+{
+    /**
+     * @param  array $record
+     * @return array
+     */
+    public function __invoke(array $record)
+    {
+        $bytes = memory_get_peak_usage($this->realUsage);
+        $formatted = $this->formatBytes($bytes);
+
+        $record['extra']['memory_peak_usage'] = $formatted;
+
+        return $record;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MemoryProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MemoryProcessor.php
new file mode 100644
index 0000000..85f9dc5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MemoryProcessor.php
@@ -0,0 +1,63 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+/**
+ * Some methods that are common for all memory processors
+ *
+ * @author Rob Jensen
+ */
+abstract class MemoryProcessor
+{
+    /**
+     * @var bool If true, get the real size of memory allocated from system. Else, only the memory used by emalloc() is reported.
+     */
+    protected $realUsage;
+
+    /**
+     * @var bool If true, then format memory size to human readable string (MB, KB, B depending on size)
+     */
+    protected $useFormatting;
+
+    /**
+     * @param bool $realUsage     Set this to true to get the real size of memory allocated from system.
+     * @param bool $useFormatting If true, then format memory size to human readable string (MB, KB, B depending on size)
+     */
+    public function __construct($realUsage = true, $useFormatting = true)
+    {
+        $this->realUsage = (boolean) $realUsage;
+        $this->useFormatting = (boolean) $useFormatting;
+    }
+
+    /**
+     * Formats bytes into a human readable string if $this->useFormatting is true, otherwise return $bytes as is
+     *
+     * @param  int        $bytes
+     * @return string|int Formatted string if $this->useFormatting is true, otherwise return $bytes as is
+     */
+    protected function formatBytes($bytes)
+    {
+        $bytes = (int) $bytes;
+
+        if (!$this->useFormatting) {
+            return $bytes;
+        }
+
+        if ($bytes > 1024 * 1024) {
+            return round($bytes / 1024 / 1024, 2).' MB';
+        } elseif ($bytes > 1024) {
+            return round($bytes / 1024, 2).' KB';
+        }
+
+        return $bytes . ' B';
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MemoryUsageProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MemoryUsageProcessor.php
new file mode 100644
index 0000000..2783d65
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MemoryUsageProcessor.php
@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+/**
+ * Injects memory_get_usage in all records
+ *
+ * @see Monolog\Processor\MemoryProcessor::__construct() for options
+ * @author Rob Jensen
+ */
+class MemoryUsageProcessor extends MemoryProcessor
+{
+    /**
+     * @param  array $record
+     * @return array
+     */
+    public function __invoke(array $record)
+    {
+        $bytes = memory_get_usage($this->realUsage);
+        $formatted = $this->formatBytes($bytes);
+
+        $record['extra']['memory_usage'] = $formatted;
+
+        return $record;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MercurialProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MercurialProcessor.php
new file mode 100644
index 0000000..7c07a7e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/MercurialProcessor.php
@@ -0,0 +1,63 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jonathan A. Schweder <jonathanschweder@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+use Monolog\Logger;
+
+/**
+ * Injects Hg branch and Hg revision number in all records
+ *
+ * @author Jonathan A. Schweder <jonathanschweder@gmail.com>
+ */
+class MercurialProcessor
+{
+    private $level;
+    private static $cache;
+
+    public function __construct($level = Logger::DEBUG)
+    {
+        $this->level = Logger::toMonologLevel($level);
+    }
+
+    /**
+     * @param  array $record
+     * @return array
+     */
+    public function __invoke(array $record)
+    {
+        // return if the level is not high enough
+        if ($record['level'] < $this->level) {
+            return $record;
+        }
+
+        $record['extra']['hg'] = self::getMercurialInfo();
+
+        return $record;
+    }
+
+    private static function getMercurialInfo()
+    {
+        if (self::$cache) {
+            return self::$cache;
+        }
+
+        $result = explode(' ', trim(`hg id -nb`));
+        if (count($result) >= 3) {
+            return self::$cache = array(
+                'branch' => $result[1],
+                'revision' => $result[2],
+            );
+        }
+
+        return self::$cache = array();
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/ProcessIdProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/ProcessIdProcessor.php
new file mode 100644
index 0000000..9d3f559
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/ProcessIdProcessor.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+/**
+ * Adds value of getmypid into records
+ *
+ * @author Andreas Hörnicke
+ */
+class ProcessIdProcessor
+{
+    /**
+     * @param  array $record
+     * @return array
+     */
+    public function __invoke(array $record)
+    {
+        $record['extra']['process_id'] = getmypid();
+
+        return $record;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/PsrLogMessageProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/PsrLogMessageProcessor.php
new file mode 100644
index 0000000..c2686ce
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/PsrLogMessageProcessor.php
@@ -0,0 +1,48 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+/**
+ * Processes a record's message according to PSR-3 rules
+ *
+ * It replaces {foo} with the value from $context['foo']
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class PsrLogMessageProcessor
+{
+    /**
+     * @param  array $record
+     * @return array
+     */
+    public function __invoke(array $record)
+    {
+        if (false === strpos($record['message'], '{')) {
+            return $record;
+        }
+
+        $replacements = array();
+        foreach ($record['context'] as $key => $val) {
+            if (is_null($val) || is_scalar($val) || (is_object($val) && method_exists($val, "__toString"))) {
+                $replacements['{'.$key.'}'] = $val;
+            } elseif (is_object($val)) {
+                $replacements['{'.$key.'}'] = '[object '.get_class($val).']';
+            } else {
+                $replacements['{'.$key.'}'] = '['.gettype($val).']';
+            }
+        }
+
+        $record['message'] = strtr($record['message'], $replacements);
+
+        return $record;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/TagProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/TagProcessor.php
new file mode 100644
index 0000000..7e2df2a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/TagProcessor.php
@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+/**
+ * Adds a tags array into record
+ *
+ * @author Martijn Riemers
+ */
+class TagProcessor
+{
+    private $tags;
+
+    public function __construct(array $tags = array())
+    {
+        $this->setTags($tags);
+    }
+
+    public function addTags(array $tags = array())
+    {
+        $this->tags = array_merge($this->tags, $tags);
+    }
+
+    public function setTags(array $tags = array())
+    {
+        $this->tags = $tags;
+    }
+
+    public function __invoke(array $record)
+    {
+        $record['extra']['tags'] = $this->tags;
+
+        return $record;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/UidProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/UidProcessor.php
new file mode 100644
index 0000000..812707c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/UidProcessor.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+/**
+ * Adds a unique identifier into records
+ *
+ * @author Simon Mönch <sm@webfactory.de>
+ */
+class UidProcessor
+{
+    private $uid;
+
+    public function __construct($length = 7)
+    {
+        if (!is_int($length) || $length > 32 || $length < 1) {
+            throw new \InvalidArgumentException('The uid length must be an integer between 1 and 32');
+        }
+
+        $this->uid = substr(hash('md5', uniqid('', true)), 0, $length);
+    }
+
+    public function __invoke(array $record)
+    {
+        $record['extra']['uid'] = $this->uid;
+
+        return $record;
+    }
+
+    /**
+     * @return string
+     */
+    public function getUid()
+    {
+        return $this->uid;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/WebProcessor.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/WebProcessor.php
new file mode 100644
index 0000000..ea1d897
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Processor/WebProcessor.php
@@ -0,0 +1,113 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Processor;
+
+/**
+ * Injects url/method and remote IP of the current web request in all records
+ *
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class WebProcessor
+{
+    /**
+     * @var array|\ArrayAccess
+     */
+    protected $serverData;
+
+    /**
+     * Default fields
+     *
+     * Array is structured as [key in record.extra => key in $serverData]
+     *
+     * @var array
+     */
+    protected $extraFields = array(
+        'url'         => 'REQUEST_URI',
+        'ip'          => 'REMOTE_ADDR',
+        'http_method' => 'REQUEST_METHOD',
+        'server'      => 'SERVER_NAME',
+        'referrer'    => 'HTTP_REFERER',
+    );
+
+    /**
+     * @param array|\ArrayAccess $serverData  Array or object w/ ArrayAccess that provides access to the $_SERVER data
+     * @param array|null         $extraFields Field names and the related key inside $serverData to be added. If not provided it defaults to: url, ip, http_method, server, referrer
+     */
+    public function __construct($serverData = null, array $extraFields = null)
+    {
+        if (null === $serverData) {
+            $this->serverData = &$_SERVER;
+        } elseif (is_array($serverData) || $serverData instanceof \ArrayAccess) {
+            $this->serverData = $serverData;
+        } else {
+            throw new \UnexpectedValueException('$serverData must be an array or object implementing ArrayAccess.');
+        }
+
+        if (null !== $extraFields) {
+            if (isset($extraFields[0])) {
+                foreach (array_keys($this->extraFields) as $fieldName) {
+                    if (!in_array($fieldName, $extraFields)) {
+                        unset($this->extraFields[$fieldName]);
+                    }
+                }
+            } else {
+                $this->extraFields = $extraFields;
+            }
+        }
+    }
+
+    /**
+     * @param  array $record
+     * @return array
+     */
+    public function __invoke(array $record)
+    {
+        // skip processing if for some reason request data
+        // is not present (CLI or wonky SAPIs)
+        if (!isset($this->serverData['REQUEST_URI'])) {
+            return $record;
+        }
+
+        $record['extra'] = $this->appendExtraFields($record['extra']);
+
+        return $record;
+    }
+
+    /**
+     * @param  string $extraName
+     * @param  string $serverName
+     * @return $this
+     */
+    public function addExtraField($extraName, $serverName)
+    {
+        $this->extraFields[$extraName] = $serverName;
+
+        return $this;
+    }
+
+    /**
+     * @param  array $extra
+     * @return array
+     */
+    private function appendExtraFields(array $extra)
+    {
+        foreach ($this->extraFields as $extraName => $serverName) {
+            $extra[$extraName] = isset($this->serverData[$serverName]) ? $this->serverData[$serverName] : null;
+        }
+
+        if (isset($this->serverData['UNIQUE_ID'])) {
+            $extra['unique_id'] = $this->serverData['UNIQUE_ID'];
+        }
+
+        return $extra;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Registry.php b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Registry.php
new file mode 100644
index 0000000..159b751
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/monolog/monolog/src/Monolog/Registry.php
@@ -0,0 +1,134 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog;
+
+use InvalidArgumentException;
+
+/**
+ * Monolog log registry
+ *
+ * Allows to get `Logger` instances in the global scope
+ * via static method calls on this class.
+ *
+ * <code>
+ * $application = new Monolog\Logger('application');
+ * $api = new Monolog\Logger('api');
+ *
+ * Monolog\Registry::addLogger($application);
+ * Monolog\Registry::addLogger($api);
+ *
+ * function testLogger()
+ * {
+ *     Monolog\Registry::api()->addError('Sent to $api Logger instance');
+ *     Monolog\Registry::application()->addError('Sent to $application Logger instance');
+ * }
+ * </code>
+ *
+ * @author Tomas Tatarko <tomas@tatarko.sk>
+ */
+class Registry
+{
+    /**
+     * List of all loggers in the registry (by named indexes)
+     *
+     * @var Logger[]
+     */
+    private static $loggers = array();
+
+    /**
+     * Adds new logging channel to the registry
+     *
+     * @param  Logger                    $logger    Instance of the logging channel
+     * @param  string|null               $name      Name of the logging channel ($logger->getName() by default)
+     * @param  bool                      $overwrite Overwrite instance in the registry if the given name already exists?
+     * @throws \InvalidArgumentException If $overwrite set to false and named Logger instance already exists
+     */
+    public static function addLogger(Logger $logger, $name = null, $overwrite = false)
+    {
+        $name = $name ?: $logger->getName();
+
+        if (isset(self::$loggers[$name]) && !$overwrite) {
+            throw new InvalidArgumentException('Logger with the given name already exists');
+        }
+
+        self::$loggers[$name] = $logger;
+    }
+
+    /**
+     * Checks if such logging channel exists by name or instance
+     *
+     * @param string|Logger $logger Name or logger instance
+     */
+    public static function hasLogger($logger)
+    {
+        if ($logger instanceof Logger) {
+            $index = array_search($logger, self::$loggers, true);
+
+            return false !== $index;
+        } else {
+            return isset(self::$loggers[$logger]);
+        }
+    }
+
+    /**
+     * Removes instance from registry by name or instance
+     *
+     * @param string|Logger $logger Name or logger instance
+     */
+    public static function removeLogger($logger)
+    {
+        if ($logger instanceof Logger) {
+            if (false !== ($idx = array_search($logger, self::$loggers, true))) {
+                unset(self::$loggers[$idx]);
+            }
+        } else {
+            unset(self::$loggers[$logger]);
+        }
+    }
+
+    /**
+     * Clears the registry
+     */
+    public static function clear()
+    {
+        self::$loggers = array();
+    }
+
+    /**
+     * Gets Logger instance from the registry
+     *
+     * @param  string                    $name Name of the requested Logger instance
+     * @throws \InvalidArgumentException If named Logger instance is not in the registry
+     * @return Logger                    Requested instance of Logger
+     */
+    public static function getInstance($name)
+    {
+        if (!isset(self::$loggers[$name])) {
+            throw new InvalidArgumentException(sprintf('Requested "%s" logger instance is not in the registry', $name));
+        }
+
+        return self::$loggers[$name];
+    }
+
+    /**
+     * Gets Logger instance from the registry via static method call
+     *
+     * @param  string                    $name      Name of the requested Logger instance
+     * @param  array                     $arguments Arguments passed to static method call
+     * @throws \InvalidArgumentException If named Logger instance is not in the registry
+     * @return Logger                    Requested instance of Logger
+     */
+    public static function __callStatic($name, $arguments)
+    {
+        return self::getInstance($name);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/AUTHORS b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/AUTHORS
new file mode 100644
index 0000000..a08b309
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/AUTHORS
@@ -0,0 +1,6 @@
+phpseclib Lead Developer:  TerraFrost (Jim Wigginton)
+
+phpseclib Developers:      monnerat (Patrick Monnerat)
+                           bantu (Andreas Fischer)
+                           petrich (Hans-Jürgen Petrich)
+                           GrahamCampbell (Graham Campbell)
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/LICENSE
new file mode 100644
index 0000000..a8ec8eb
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/LICENSE
@@ -0,0 +1,21 @@
+Copyright 2007-2016 TerraFrost and other contributors
+http://phpseclib.sourceforge.net/
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/README.md b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/README.md
new file mode 100644
index 0000000..94402be
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/README.md
@@ -0,0 +1,74 @@
+# phpseclib - PHP Secure Communications Library
+
+[![Build Status](https://travis-ci.org/phpseclib/phpseclib.svg?branch=2.0)](https://travis-ci.org/phpseclib/phpseclib)
+
+MIT-licensed pure-PHP implementations of an arbitrary-precision integer
+arithmetic library, fully PKCS#1 (v2.1) compliant RSA, DES, 3DES, RC4, Rijndael,
+AES, Blowfish, Twofish, SSH-1, SSH-2, SFTP, and X.509
+
+* [Browse Git](https://github.com/phpseclib/phpseclib)
+* [Code Coverage Report](https://coverage.phpseclib.org/2.0/latest/)
+
+## Documentation
+
+* [Documentation / Manual](http://phpseclib.sourceforge.net/)
+* [API Documentation](https://api.phpseclib.org/2.0/) (generated by Sami)
+
+## Branches
+
+### master
+
+* Development Branch
+* Unstable API
+* Do not use in production
+
+### 2.0
+
+* Modernized version of 1.0
+* Minimum PHP version: 5.3.3
+* PSR-4 autoloading with namespace rooted at `\phpseclib`
+* Install via Composer: `composer require phpseclib/phpseclib ~2.0`
+
+### 1.0
+
+* Long term support (LTS) release
+* PHP4 compatible
+* Composer compatible (PSR-0 autoloading)
+* Install using Composer: `composer require phpseclib/phpseclib ~1.0`
+* Install using PEAR: See [phpseclib PEAR Channel Documentation](http://phpseclib.sourceforge.net/pear.htm)
+* [Download 1.0.10 as ZIP](http://sourceforge.net/projects/phpseclib/files/phpseclib1.0.10.zip/download)
+
+## Support
+
+Need Support?
+
+* [Checkout Questions and Answers on Stack Overflow](http://stackoverflow.com/questions/tagged/phpseclib)
+* [Create a Support Ticket on GitHub](https://github.com/phpseclib/phpseclib/issues/new)
+* [Browse the Support Forum](http://www.frostjedi.com/phpbb/viewforum.php?f=46) (no longer in use)
+
+## Contributing
+
+1. Fork the Project
+
+2. Ensure you have Composer installed (see [Composer Download Instructions](https://getcomposer.org/download/))
+
+3. Install Development Dependencies
+
+    ``` sh
+    composer install
+    ```
+
+4. Create a Feature Branch
+
+5. (Recommended) Run the Test Suite
+
+    ``` sh
+    vendor/bin/phpunit
+    ```
+6. (Recommended) Check whether your code conforms to our Coding Standards by running
+
+    ``` sh
+    vendor/bin/phing -f build/build.xml sniff
+    ```
+
+7. Send us a Pull Request
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/composer.json b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/composer.json
new file mode 100644
index 0000000..b4e8a1c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/composer.json
@@ -0,0 +1,76 @@
+{
+    "name": "phpseclib/phpseclib",
+    "type": "library",
+    "description": "PHP Secure Communications Library - Pure-PHP implementations of RSA, AES, SSH2, SFTP, X.509 etc.",
+    "keywords": [
+        "security",
+        "crypto",
+        "cryptography",
+        "encryption",
+        "signature",
+        "signing",
+        "rsa",
+        "aes",
+        "blowfish",
+        "twofish",
+        "ssh",
+        "sftp",
+        "x509",
+        "x.509",
+        "asn1",
+        "asn.1",
+        "BigInteger"
+        ],
+    "homepage": "http://phpseclib.sourceforge.net",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Jim Wigginton",
+            "email": "terrafrost@php.net",
+            "role": "Lead Developer"
+        },
+        {
+            "name": "Patrick Monnerat",
+            "email": "pm@datasphere.ch",
+            "role": "Developer"
+        },
+        {
+            "name": "Andreas Fischer",
+            "email": "bantu@phpbb.com",
+            "role": "Developer"
+        },
+        {
+            "name": "Hans-Jürgen Petrich",
+            "email": "petrich@tronic-media.com",
+            "role": "Developer"
+        },
+        {
+            "name": "Graham Campbell",
+            "email": "graham@alt-three.com",
+            "role": "Developer"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.3"
+    },
+    "require-dev": {
+        "phing/phing": "~2.7",
+        "phpunit/phpunit": "^4.8.35|^5.7|^6.0",
+        "sami/sami": "~2.0",
+        "squizlabs/php_codesniffer": "~2.0"
+    },
+    "suggest": {
+        "ext-libsodium": "SSH2/SFTP can make use of some algorithms provided by the libsodium-php extension.",
+        "ext-openssl": "Install the OpenSSL extension in order to speed up a wide variety of cryptographic operations.",
+        "ext-mcrypt": "Install the Mcrypt extension in order to speed up a few other cryptographic operations.",
+        "ext-gmp": "Install the GMP (GNU Multiple Precision) extension in order to speed up arbitrary precision integer arithmetic operations."
+    },
+    "autoload": {
+        "files": [
+            "phpseclib/bootstrap.php"
+        ],
+        "psr-4": {
+            "phpseclib\\": "phpseclib/"
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/AES.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/AES.php
new file mode 100644
index 0000000..7d8cb8b
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/AES.php
@@ -0,0 +1,126 @@
+<?php
+
+/**
+ * Pure-PHP implementation of AES.
+ *
+ * Uses mcrypt, if available/possible, and an internal implementation, otherwise.
+ *
+ * PHP version 5
+ *
+ * NOTE: Since AES.php is (for compatibility and phpseclib-historical reasons) virtually
+ * just a wrapper to Rijndael.php you may consider using Rijndael.php instead of
+ * to save one include_once().
+ *
+ * If {@link self::setKeyLength() setKeyLength()} isn't called, it'll be calculated from
+ * {@link self::setKey() setKey()}.  ie. if the key is 128-bits, the key length will be 128-bits.  If it's 136-bits
+ * it'll be null-padded to 192-bits and 192 bits will be the key length until {@link self::setKey() setKey()}
+ * is called, again, at which point, it'll be recalculated.
+ *
+ * Since \phpseclib\Crypt\AES extends \phpseclib\Crypt\Rijndael, some functions are available to be called that, in the context of AES, don't
+ * make a whole lot of sense.  {@link self::setBlockLength() setBlockLength()}, for instance.  Calling that function,
+ * however possible, won't do anything (AES has a fixed block length whereas Rijndael has a variable one).
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $aes = new \phpseclib\Crypt\AES();
+ *
+ *    $aes->setKey('abcdefghijklmnop');
+ *
+ *    $size = 10 * 1024;
+ *    $plaintext = '';
+ *    for ($i = 0; $i < $size; $i++) {
+ *        $plaintext.= 'a';
+ *    }
+ *
+ *    echo $aes->decrypt($aes->encrypt($plaintext));
+ * ?>
+ * </code>
+ *
+ * @category  Crypt
+ * @package   AES
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2008 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Pure-PHP implementation of AES.
+ *
+ * @package AES
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @access  public
+ */
+class AES extends Rijndael
+{
+    /**
+     * Dummy function
+     *
+     * Since \phpseclib\Crypt\AES extends \phpseclib\Crypt\Rijndael, this function is, technically, available, but it doesn't do anything.
+     *
+     * @see \phpseclib\Crypt\Rijndael::setBlockLength()
+     * @access public
+     * @param int $length
+     */
+    function setBlockLength($length)
+    {
+        return;
+    }
+
+    /**
+     * Sets the key length
+     *
+     * Valid key lengths are 128, 192, and 256.  If the length is less than 128, it will be rounded up to
+     * 128.  If the length is greater than 128 and invalid, it will be rounded down to the closest valid amount.
+     *
+     * @see \phpseclib\Crypt\Rijndael:setKeyLength()
+     * @access public
+     * @param int $length
+     */
+    function setKeyLength($length)
+    {
+        switch ($length) {
+            case 160:
+                $length = 192;
+                break;
+            case 224:
+                $length = 256;
+        }
+        parent::setKeyLength($length);
+    }
+
+    /**
+     * Sets the key.
+     *
+     * Rijndael supports five different key lengths, AES only supports three.
+     *
+     * @see \phpseclib\Crypt\Rijndael:setKey()
+     * @see setKeyLength()
+     * @access public
+     * @param string $key
+     */
+    function setKey($key)
+    {
+        parent::setKey($key);
+
+        if (!$this->explicit_key_length) {
+            $length = strlen($key);
+            switch (true) {
+                case $length <= 16:
+                    $this->key_length = 16;
+                    break;
+                case $length <= 24:
+                    $this->key_length = 24;
+                    break;
+                default:
+                    $this->key_length = 32;
+            }
+            $this->_setEngine();
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Base.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Base.php
new file mode 100644
index 0000000..54a8997
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Base.php
@@ -0,0 +1,2598 @@
+<?php
+
+/**
+ * Base Class for all \phpseclib\Crypt\* cipher classes
+ *
+ * PHP version 5
+ *
+ * Internally for phpseclib developers:
+ *  If you plan to add a new cipher class, please note following rules:
+ *
+ *  - The new \phpseclib\Crypt\* cipher class should extend \phpseclib\Crypt\Base
+ *
+ *  - Following methods are then required to be overridden/overloaded:
+ *
+ *    - _encryptBlock()
+ *
+ *    - _decryptBlock()
+ *
+ *    - _setupKey()
+ *
+ *  - All other methods are optional to be overridden/overloaded
+ *
+ *  - Look at the source code of the current ciphers how they extend \phpseclib\Crypt\Base
+ *    and take one of them as a start up for the new cipher class.
+ *
+ *  - Please read all the other comments/notes/hints here also for each class var/method
+ *
+ * @category  Crypt
+ * @package   Base
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @author    Hans-Juergen Petrich <petrich@tronic-media.com>
+ * @copyright 2007 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Base Class for all \phpseclib\Crypt\* cipher classes
+ *
+ * @package Base
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @author  Hans-Juergen Petrich <petrich@tronic-media.com>
+ */
+abstract class Base
+{
+    /**#@+
+     * @access public
+     * @see \phpseclib\Crypt\Base::encrypt()
+     * @see \phpseclib\Crypt\Base::decrypt()
+     */
+    /**
+     * Encrypt / decrypt using the Counter mode.
+     *
+     * Set to -1 since that's what Crypt/Random.php uses to index the CTR mode.
+     *
+     * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29
+     */
+    const MODE_CTR = -1;
+    /**
+     * Encrypt / decrypt using the Electronic Code Book mode.
+     *
+     * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29
+     */
+    const MODE_ECB = 1;
+    /**
+     * Encrypt / decrypt using the Code Book Chaining mode.
+     *
+     * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29
+     */
+    const MODE_CBC = 2;
+    /**
+     * Encrypt / decrypt using the Cipher Feedback mode.
+     *
+     * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29
+     */
+    const MODE_CFB = 3;
+    /**
+     * Encrypt / decrypt using the Output Feedback mode.
+     *
+     * @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29
+     */
+    const MODE_OFB = 4;
+    /**
+     * Encrypt / decrypt using streaming mode.
+     */
+    const MODE_STREAM = 5;
+    /**#@-*/
+
+    /**
+     * Whirlpool available flag
+     *
+     * @see \phpseclib\Crypt\Base::_hashInlineCryptFunction()
+     * @var bool
+     * @access private
+     */
+    static $WHIRLPOOL_AVAILABLE;
+
+    /**#@+
+     * @access private
+     * @see \phpseclib\Crypt\Base::__construct()
+     */
+    /**
+     * Base value for the internal implementation $engine switch
+     */
+    const ENGINE_INTERNAL = 1;
+    /**
+     * Base value for the mcrypt implementation $engine switch
+     */
+    const ENGINE_MCRYPT = 2;
+    /**
+     * Base value for the mcrypt implementation $engine switch
+     */
+    const ENGINE_OPENSSL = 3;
+    /**#@-*/
+
+    /**
+     * The Encryption Mode
+     *
+     * @see self::__construct()
+     * @var int
+     * @access private
+     */
+    var $mode;
+
+    /**
+     * The Block Length of the block cipher
+     *
+     * @var int
+     * @access private
+     */
+    var $block_size = 16;
+
+    /**
+     * The Key
+     *
+     * @see self::setKey()
+     * @var string
+     * @access private
+     */
+    var $key = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
+
+    /**
+     * The Initialization Vector
+     *
+     * @see self::setIV()
+     * @var string
+     * @access private
+     */
+    var $iv;
+
+    /**
+     * A "sliding" Initialization Vector
+     *
+     * @see self::enableContinuousBuffer()
+     * @see self::_clearBuffers()
+     * @var string
+     * @access private
+     */
+    var $encryptIV;
+
+    /**
+     * A "sliding" Initialization Vector
+     *
+     * @see self::enableContinuousBuffer()
+     * @see self::_clearBuffers()
+     * @var string
+     * @access private
+     */
+    var $decryptIV;
+
+    /**
+     * Continuous Buffer status
+     *
+     * @see self::enableContinuousBuffer()
+     * @var bool
+     * @access private
+     */
+    var $continuousBuffer = false;
+
+    /**
+     * Encryption buffer for CTR, OFB and CFB modes
+     *
+     * @see self::encrypt()
+     * @see self::_clearBuffers()
+     * @var array
+     * @access private
+     */
+    var $enbuffer;
+
+    /**
+     * Decryption buffer for CTR, OFB and CFB modes
+     *
+     * @see self::decrypt()
+     * @see self::_clearBuffers()
+     * @var array
+     * @access private
+     */
+    var $debuffer;
+
+    /**
+     * mcrypt resource for encryption
+     *
+     * The mcrypt resource can be recreated every time something needs to be created or it can be created just once.
+     * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode.
+     *
+     * @see self::encrypt()
+     * @var resource
+     * @access private
+     */
+    var $enmcrypt;
+
+    /**
+     * mcrypt resource for decryption
+     *
+     * The mcrypt resource can be recreated every time something needs to be created or it can be created just once.
+     * Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode.
+     *
+     * @see self::decrypt()
+     * @var resource
+     * @access private
+     */
+    var $demcrypt;
+
+    /**
+     * Does the enmcrypt resource need to be (re)initialized?
+     *
+     * @see \phpseclib\Crypt\Twofish::setKey()
+     * @see \phpseclib\Crypt\Twofish::setIV()
+     * @var bool
+     * @access private
+     */
+    var $enchanged = true;
+
+    /**
+     * Does the demcrypt resource need to be (re)initialized?
+     *
+     * @see \phpseclib\Crypt\Twofish::setKey()
+     * @see \phpseclib\Crypt\Twofish::setIV()
+     * @var bool
+     * @access private
+     */
+    var $dechanged = true;
+
+    /**
+     * mcrypt resource for CFB mode
+     *
+     * mcrypt's CFB mode, in (and only in) buffered context,
+     * is broken, so phpseclib implements the CFB mode by it self,
+     * even when the mcrypt php extension is available.
+     *
+     * In order to do the CFB-mode work (fast) phpseclib
+     * use a separate ECB-mode mcrypt resource.
+     *
+     * @link http://phpseclib.sourceforge.net/cfb-demo.phps
+     * @see self::encrypt()
+     * @see self::decrypt()
+     * @see self::_setupMcrypt()
+     * @var resource
+     * @access private
+     */
+    var $ecb;
+
+    /**
+     * Optimizing value while CFB-encrypting
+     *
+     * Only relevant if $continuousBuffer enabled
+     * and $engine == self::ENGINE_MCRYPT
+     *
+     * It's faster to re-init $enmcrypt if
+     * $buffer bytes > $cfb_init_len than
+     * using the $ecb resource furthermore.
+     *
+     * This value depends of the chosen cipher
+     * and the time it would be needed for it's
+     * initialization [by mcrypt_generic_init()]
+     * which, typically, depends on the complexity
+     * on its internaly Key-expanding algorithm.
+     *
+     * @see self::encrypt()
+     * @var int
+     * @access private
+     */
+    var $cfb_init_len = 600;
+
+    /**
+     * Does internal cipher state need to be (re)initialized?
+     *
+     * @see self::setKey()
+     * @see self::setIV()
+     * @see self::disableContinuousBuffer()
+     * @var bool
+     * @access private
+     */
+    var $changed = true;
+
+    /**
+     * Padding status
+     *
+     * @see self::enablePadding()
+     * @var bool
+     * @access private
+     */
+    var $padding = true;
+
+    /**
+     * Is the mode one that is paddable?
+     *
+     * @see self::__construct()
+     * @var bool
+     * @access private
+     */
+    var $paddable = false;
+
+    /**
+     * Holds which crypt engine internaly should be use,
+     * which will be determined automatically on __construct()
+     *
+     * Currently available $engines are:
+     * - self::ENGINE_OPENSSL  (very fast, php-extension: openssl, extension_loaded('openssl') required)
+     * - self::ENGINE_MCRYPT   (fast, php-extension: mcrypt, extension_loaded('mcrypt') required)
+     * - self::ENGINE_INTERNAL (slower, pure php-engine, no php-extension required)
+     *
+     * @see self::_setEngine()
+     * @see self::encrypt()
+     * @see self::decrypt()
+     * @var int
+     * @access private
+     */
+    var $engine;
+
+    /**
+     * Holds the preferred crypt engine
+     *
+     * @see self::_setEngine()
+     * @see self::setPreferredEngine()
+     * @var int
+     * @access private
+     */
+    var $preferredEngine;
+
+    /**
+     * The mcrypt specific name of the cipher
+     *
+     * Only used if $engine == self::ENGINE_MCRYPT
+     *
+     * @link http://www.php.net/mcrypt_module_open
+     * @link http://www.php.net/mcrypt_list_algorithms
+     * @see self::_setupMcrypt()
+     * @var string
+     * @access private
+     */
+    var $cipher_name_mcrypt;
+
+    /**
+     * The openssl specific name of the cipher
+     *
+     * Only used if $engine == self::ENGINE_OPENSSL
+     *
+     * @link http://www.php.net/openssl-get-cipher-methods
+     * @var string
+     * @access private
+     */
+    var $cipher_name_openssl;
+
+    /**
+     * The openssl specific name of the cipher in ECB mode
+     *
+     * If OpenSSL does not support the mode we're trying to use (CTR)
+     * it can still be emulated with ECB mode.
+     *
+     * @link http://www.php.net/openssl-get-cipher-methods
+     * @var string
+     * @access private
+     */
+    var $cipher_name_openssl_ecb;
+
+    /**
+     * The default salt used by setPassword()
+     *
+     * @see self::setPassword()
+     * @var string
+     * @access private
+     */
+    var $password_default_salt = 'phpseclib/salt';
+
+    /**
+     * The name of the performance-optimized callback function
+     *
+     * Used by encrypt() / decrypt()
+     * only if $engine == self::ENGINE_INTERNAL
+     *
+     * @see self::encrypt()
+     * @see self::decrypt()
+     * @see self::_setupInlineCrypt()
+     * @see self::$use_inline_crypt
+     * @var Callback
+     * @access private
+     */
+    var $inline_crypt;
+
+    /**
+     * Holds whether performance-optimized $inline_crypt() can/should be used.
+     *
+     * @see self::encrypt()
+     * @see self::decrypt()
+     * @see self::inline_crypt
+     * @var mixed
+     * @access private
+     */
+    var $use_inline_crypt;
+
+    /**
+     * If OpenSSL can be used in ECB but not in CTR we can emulate CTR
+     *
+     * @see self::_openssl_ctr_process()
+     * @var bool
+     * @access private
+     */
+    var $openssl_emulate_ctr = false;
+
+    /**
+     * Determines what options are passed to openssl_encrypt/decrypt
+     *
+     * @see self::isValidEngine()
+     * @var mixed
+     * @access private
+     */
+    var $openssl_options;
+
+    /**
+     * Has the key length explicitly been set or should it be derived from the key, itself?
+     *
+     * @see self::setKeyLength()
+     * @var bool
+     * @access private
+     */
+    var $explicit_key_length = false;
+
+    /**
+     * Don't truncate / null pad key
+     *
+     * @see self::_clearBuffers()
+     * @var bool
+     * @access private
+     */
+    var $skip_key_adjustment = false;
+
+    /**
+     * Default Constructor.
+     *
+     * Determines whether or not the mcrypt extension should be used.
+     *
+     * $mode could be:
+     *
+     * - self::MODE_ECB
+     *
+     * - self::MODE_CBC
+     *
+     * - self::MODE_CTR
+     *
+     * - self::MODE_CFB
+     *
+     * - self::MODE_OFB
+     *
+     * If not explicitly set, self::MODE_CBC will be used.
+     *
+     * @param int $mode
+     * @access public
+     */
+    function __construct($mode = self::MODE_CBC)
+    {
+        // $mode dependent settings
+        switch ($mode) {
+            case self::MODE_ECB:
+                $this->paddable = true;
+                $this->mode = self::MODE_ECB;
+                break;
+            case self::MODE_CTR:
+            case self::MODE_CFB:
+            case self::MODE_OFB:
+            case self::MODE_STREAM:
+                $this->mode = $mode;
+                break;
+            case self::MODE_CBC:
+            default:
+                $this->paddable = true;
+                $this->mode = self::MODE_CBC;
+        }
+
+        $this->_setEngine();
+
+        // Determining whether inline crypting can be used by the cipher
+        if ($this->use_inline_crypt !== false) {
+            $this->use_inline_crypt = version_compare(PHP_VERSION, '5.3.0') >= 0 || function_exists('create_function');
+        }
+    }
+
+    /**
+     * Sets the initialization vector. (optional)
+     *
+     * SetIV is not required when self::MODE_ECB (or ie for AES: \phpseclib\Crypt\AES::MODE_ECB) is being used.  If not explicitly set, it'll be assumed
+     * to be all zero's.
+     *
+     * @access public
+     * @param string $iv
+     * @internal Can be overwritten by a sub class, but does not have to be
+     */
+    function setIV($iv)
+    {
+        if ($this->mode == self::MODE_ECB) {
+            return;
+        }
+
+        $this->iv = $iv;
+        $this->changed = true;
+    }
+
+    /**
+     * Sets the key length.
+     *
+     * Keys with explicitly set lengths need to be treated accordingly
+     *
+     * @access public
+     * @param int $length
+     */
+    function setKeyLength($length)
+    {
+        $this->explicit_key_length = true;
+        $this->changed = true;
+        $this->_setEngine();
+    }
+
+    /**
+     * Returns the current key length in bits
+     *
+     * @access public
+     * @return int
+     */
+    function getKeyLength()
+    {
+        return $this->key_length << 3;
+    }
+
+    /**
+     * Returns the current block length in bits
+     *
+     * @access public
+     * @return int
+     */
+    function getBlockLength()
+    {
+        return $this->block_size << 3;
+    }
+
+    /**
+     * Sets the key.
+     *
+     * The min/max length(s) of the key depends on the cipher which is used.
+     * If the key not fits the length(s) of the cipher it will paded with null bytes
+     * up to the closest valid key length.  If the key is more than max length,
+     * we trim the excess bits.
+     *
+     * If the key is not explicitly set, it'll be assumed to be all null bytes.
+     *
+     * @access public
+     * @param string $key
+     * @internal Could, but not must, extend by the child Crypt_* class
+     */
+    function setKey($key)
+    {
+        if (!$this->explicit_key_length) {
+            $this->setKeyLength(strlen($key) << 3);
+            $this->explicit_key_length = false;
+        }
+
+        $this->key = $key;
+        $this->changed = true;
+        $this->_setEngine();
+    }
+
+    /**
+     * Sets the password.
+     *
+     * Depending on what $method is set to, setPassword()'s (optional) parameters are as follows:
+     *     {@link http://en.wikipedia.org/wiki/PBKDF2 pbkdf2} or pbkdf1:
+     *         $hash, $salt, $count, $dkLen
+     *
+     *         Where $hash (default = sha1) currently supports the following hashes: see: Crypt/Hash.php
+     *
+     * @see Crypt/Hash.php
+     * @param string $password
+     * @param string $method
+     * @return bool
+     * @access public
+     * @internal Could, but not must, extend by the child Crypt_* class
+     */
+    function setPassword($password, $method = 'pbkdf2')
+    {
+        $key = '';
+
+        switch ($method) {
+            default: // 'pbkdf2' or 'pbkdf1'
+                $func_args = func_get_args();
+
+                // Hash function
+                $hash = isset($func_args[2]) ? $func_args[2] : 'sha1';
+
+                // WPA and WPA2 use the SSID as the salt
+                $salt = isset($func_args[3]) ? $func_args[3] : $this->password_default_salt;
+
+                // RFC2898#section-4.2 uses 1,000 iterations by default
+                // WPA and WPA2 use 4,096.
+                $count = isset($func_args[4]) ? $func_args[4] : 1000;
+
+                // Keylength
+                if (isset($func_args[5])) {
+                    $dkLen = $func_args[5];
+                } else {
+                    $dkLen = $method == 'pbkdf1' ? 2 * $this->key_length : $this->key_length;
+                }
+
+                switch (true) {
+                    case $method == 'pbkdf1':
+                        $hashObj = new Hash();
+                        $hashObj->setHash($hash);
+                        if ($dkLen > $hashObj->getLength()) {
+                            user_error('Derived key too long');
+                            return false;
+                        }
+                        $t = $password . $salt;
+                        for ($i = 0; $i < $count; ++$i) {
+                            $t = $hashObj->hash($t);
+                        }
+                        $key = substr($t, 0, $dkLen);
+
+                        $this->setKey(substr($key, 0, $dkLen >> 1));
+                        $this->setIV(substr($key, $dkLen >> 1));
+
+                        return true;
+                    // Determining if php[>=5.5.0]'s hash_pbkdf2() function avail- and useable
+                    case !function_exists('hash_pbkdf2'):
+                    case !function_exists('hash_algos'):
+                    case !in_array($hash, hash_algos()):
+                        $i = 1;
+                        while (strlen($key) < $dkLen) {
+                            $hmac = new Hash();
+                            $hmac->setHash($hash);
+                            $hmac->setKey($password);
+                            $f = $u = $hmac->hash($salt . pack('N', $i++));
+                            for ($j = 2; $j <= $count; ++$j) {
+                                $u = $hmac->hash($u);
+                                $f^= $u;
+                            }
+                            $key.= $f;
+                        }
+                        $key = substr($key, 0, $dkLen);
+                        break;
+                    default:
+                        $key = hash_pbkdf2($hash, $password, $salt, $count, $dkLen, true);
+                }
+        }
+
+        $this->setKey($key);
+
+        return true;
+    }
+
+    /**
+     * Encrypts a message.
+     *
+     * $plaintext will be padded with additional bytes such that it's length is a multiple of the block size. Other cipher
+     * implementations may or may not pad in the same manner.  Other common approaches to padding and the reasons why it's
+     * necessary are discussed in the following
+     * URL:
+     *
+     * {@link http://www.di-mgt.com.au/cryptopad.html http://www.di-mgt.com.au/cryptopad.html}
+     *
+     * An alternative to padding is to, separately, send the length of the file.  This is what SSH, in fact, does.
+     * strlen($plaintext) will still need to be a multiple of the block size, however, arbitrary values can be added to make it that
+     * length.
+     *
+     * @see self::decrypt()
+     * @access public
+     * @param string $plaintext
+     * @return string $ciphertext
+     * @internal Could, but not must, extend by the child Crypt_* class
+     */
+    function encrypt($plaintext)
+    {
+        if ($this->paddable) {
+            $plaintext = $this->_pad($plaintext);
+        }
+
+        if ($this->engine === self::ENGINE_OPENSSL) {
+            if ($this->changed) {
+                $this->_clearBuffers();
+                $this->changed = false;
+            }
+            switch ($this->mode) {
+                case self::MODE_STREAM:
+                    return openssl_encrypt($plaintext, $this->cipher_name_openssl, $this->key, $this->openssl_options);
+                case self::MODE_ECB:
+                    $result = openssl_encrypt($plaintext, $this->cipher_name_openssl, $this->key, $this->openssl_options);
+                    return !defined('OPENSSL_RAW_DATA') ? substr($result, 0, -$this->block_size) : $result;
+                case self::MODE_CBC:
+                    $result = openssl_encrypt($plaintext, $this->cipher_name_openssl, $this->key, $this->openssl_options, $this->encryptIV);
+                    if (!defined('OPENSSL_RAW_DATA')) {
+                        $result = substr($result, 0, -$this->block_size);
+                    }
+                    if ($this->continuousBuffer) {
+                        $this->encryptIV = substr($result, -$this->block_size);
+                    }
+                    return $result;
+                case self::MODE_CTR:
+                    return $this->_openssl_ctr_process($plaintext, $this->encryptIV, $this->enbuffer);
+                case self::MODE_CFB:
+                    // cfb loosely routines inspired by openssl's:
+                    // {@link http://cvs.openssl.org/fileview?f=openssl/crypto/modes/cfb128.c&v=1.3.2.2.2.1}
+                    $ciphertext = '';
+                    if ($this->continuousBuffer) {
+                        $iv = &$this->encryptIV;
+                        $pos = &$this->enbuffer['pos'];
+                    } else {
+                        $iv = $this->encryptIV;
+                        $pos = 0;
+                    }
+                    $len = strlen($plaintext);
+                    $i = 0;
+                    if ($pos) {
+                        $orig_pos = $pos;
+                        $max = $this->block_size - $pos;
+                        if ($len >= $max) {
+                            $i = $max;
+                            $len-= $max;
+                            $pos = 0;
+                        } else {
+                            $i = $len;
+                            $pos+= $len;
+                            $len = 0;
+                        }
+                        // ie. $i = min($max, $len), $len-= $i, $pos+= $i, $pos%= $blocksize
+                        $ciphertext = substr($iv, $orig_pos) ^ $plaintext;
+                        $iv = substr_replace($iv, $ciphertext, $orig_pos, $i);
+                        $plaintext = substr($plaintext, $i);
+                    }
+
+                    $overflow = $len % $this->block_size;
+
+                    if ($overflow) {
+                        $ciphertext.= openssl_encrypt(substr($plaintext, 0, -$overflow) . str_repeat("\0", $this->block_size), $this->cipher_name_openssl, $this->key, $this->openssl_options, $iv);
+                        $iv = $this->_string_pop($ciphertext, $this->block_size);
+
+                        $size = $len - $overflow;
+                        $block = $iv ^ substr($plaintext, -$overflow);
+                        $iv = substr_replace($iv, $block, 0, $overflow);
+                        $ciphertext.= $block;
+                        $pos = $overflow;
+                    } elseif ($len) {
+                        $ciphertext = openssl_encrypt($plaintext, $this->cipher_name_openssl, $this->key, $this->openssl_options, $iv);
+                        $iv = substr($ciphertext, -$this->block_size);
+                    }
+
+                    return $ciphertext;
+                case self::MODE_OFB:
+                    return $this->_openssl_ofb_process($plaintext, $this->encryptIV, $this->enbuffer);
+            }
+        }
+
+        if ($this->engine === self::ENGINE_MCRYPT) {
+            if ($this->changed) {
+                $this->_setupMcrypt();
+                $this->changed = false;
+            }
+            if ($this->enchanged) {
+                @mcrypt_generic_init($this->enmcrypt, $this->key, $this->encryptIV);
+                $this->enchanged = false;
+            }
+
+            // re: {@link http://phpseclib.sourceforge.net/cfb-demo.phps}
+            // using mcrypt's default handing of CFB the above would output two different things.  using phpseclib's
+            // rewritten CFB implementation the above outputs the same thing twice.
+            if ($this->mode == self::MODE_CFB && $this->continuousBuffer) {
+                $block_size = $this->block_size;
+                $iv = &$this->encryptIV;
+                $pos = &$this->enbuffer['pos'];
+                $len = strlen($plaintext);
+                $ciphertext = '';
+                $i = 0;
+                if ($pos) {
+                    $orig_pos = $pos;
+                    $max = $block_size - $pos;
+                    if ($len >= $max) {
+                        $i = $max;
+                        $len-= $max;
+                        $pos = 0;
+                    } else {
+                        $i = $len;
+                        $pos+= $len;
+                        $len = 0;
+                    }
+                    $ciphertext = substr($iv, $orig_pos) ^ $plaintext;
+                    $iv = substr_replace($iv, $ciphertext, $orig_pos, $i);
+                    $this->enbuffer['enmcrypt_init'] = true;
+                }
+                if ($len >= $block_size) {
+                    if ($this->enbuffer['enmcrypt_init'] === false || $len > $this->cfb_init_len) {
+                        if ($this->enbuffer['enmcrypt_init'] === true) {
+                            @mcrypt_generic_init($this->enmcrypt, $this->key, $iv);
+                            $this->enbuffer['enmcrypt_init'] = false;
+                        }
+                        $ciphertext.= @mcrypt_generic($this->enmcrypt, substr($plaintext, $i, $len - $len % $block_size));
+                        $iv = substr($ciphertext, -$block_size);
+                        $len%= $block_size;
+                    } else {
+                        while ($len >= $block_size) {
+                            $iv = @mcrypt_generic($this->ecb, $iv) ^ substr($plaintext, $i, $block_size);
+                            $ciphertext.= $iv;
+                            $len-= $block_size;
+                            $i+= $block_size;
+                        }
+                    }
+                }
+
+                if ($len) {
+                    $iv = @mcrypt_generic($this->ecb, $iv);
+                    $block = $iv ^ substr($plaintext, -$len);
+                    $iv = substr_replace($iv, $block, 0, $len);
+                    $ciphertext.= $block;
+                    $pos = $len;
+                }
+
+                return $ciphertext;
+            }
+
+            $ciphertext = @mcrypt_generic($this->enmcrypt, $plaintext);
+
+            if (!$this->continuousBuffer) {
+                @mcrypt_generic_init($this->enmcrypt, $this->key, $this->encryptIV);
+            }
+
+            return $ciphertext;
+        }
+
+        if ($this->changed) {
+            $this->_setup();
+            $this->changed = false;
+        }
+        if ($this->use_inline_crypt) {
+            $inline = $this->inline_crypt;
+            return $inline('encrypt', $this, $plaintext);
+        }
+
+        $buffer = &$this->enbuffer;
+        $block_size = $this->block_size;
+        $ciphertext = '';
+        switch ($this->mode) {
+            case self::MODE_ECB:
+                for ($i = 0; $i < strlen($plaintext); $i+=$block_size) {
+                    $ciphertext.= $this->_encryptBlock(substr($plaintext, $i, $block_size));
+                }
+                break;
+            case self::MODE_CBC:
+                $xor = $this->encryptIV;
+                for ($i = 0; $i < strlen($plaintext); $i+=$block_size) {
+                    $block = substr($plaintext, $i, $block_size);
+                    $block = $this->_encryptBlock($block ^ $xor);
+                    $xor = $block;
+                    $ciphertext.= $block;
+                }
+                if ($this->continuousBuffer) {
+                    $this->encryptIV = $xor;
+                }
+                break;
+            case self::MODE_CTR:
+                $xor = $this->encryptIV;
+                if (strlen($buffer['ciphertext'])) {
+                    for ($i = 0; $i < strlen($plaintext); $i+=$block_size) {
+                        $block = substr($plaintext, $i, $block_size);
+                        if (strlen($block) > strlen($buffer['ciphertext'])) {
+                            $buffer['ciphertext'].= $this->_encryptBlock($xor);
+                        }
+                        $this->_increment_str($xor);
+                        $key = $this->_string_shift($buffer['ciphertext'], $block_size);
+                        $ciphertext.= $block ^ $key;
+                    }
+                } else {
+                    for ($i = 0; $i < strlen($plaintext); $i+=$block_size) {
+                        $block = substr($plaintext, $i, $block_size);
+                        $key = $this->_encryptBlock($xor);
+                        $this->_increment_str($xor);
+                        $ciphertext.= $block ^ $key;
+                    }
+                }
+                if ($this->continuousBuffer) {
+                    $this->encryptIV = $xor;
+                    if ($start = strlen($plaintext) % $block_size) {
+                        $buffer['ciphertext'] = substr($key, $start) . $buffer['ciphertext'];
+                    }
+                }
+                break;
+            case self::MODE_CFB:
+                // cfb loosely routines inspired by openssl's:
+                // {@link http://cvs.openssl.org/fileview?f=openssl/crypto/modes/cfb128.c&v=1.3.2.2.2.1}
+                if ($this->continuousBuffer) {
+                    $iv = &$this->encryptIV;
+                    $pos = &$buffer['pos'];
+                } else {
+                    $iv = $this->encryptIV;
+                    $pos = 0;
+                }
+                $len = strlen($plaintext);
+                $i = 0;
+                if ($pos) {
+                    $orig_pos = $pos;
+                    $max = $block_size - $pos;
+                    if ($len >= $max) {
+                        $i = $max;
+                        $len-= $max;
+                        $pos = 0;
+                    } else {
+                        $i = $len;
+                        $pos+= $len;
+                        $len = 0;
+                    }
+                    // ie. $i = min($max, $len), $len-= $i, $pos+= $i, $pos%= $blocksize
+                    $ciphertext = substr($iv, $orig_pos) ^ $plaintext;
+                    $iv = substr_replace($iv, $ciphertext, $orig_pos, $i);
+                }
+                while ($len >= $block_size) {
+                    $iv = $this->_encryptBlock($iv) ^ substr($plaintext, $i, $block_size);
+                    $ciphertext.= $iv;
+                    $len-= $block_size;
+                    $i+= $block_size;
+                }
+                if ($len) {
+                    $iv = $this->_encryptBlock($iv);
+                    $block = $iv ^ substr($plaintext, $i);
+                    $iv = substr_replace($iv, $block, 0, $len);
+                    $ciphertext.= $block;
+                    $pos = $len;
+                }
+                break;
+            case self::MODE_OFB:
+                $xor = $this->encryptIV;
+                if (strlen($buffer['xor'])) {
+                    for ($i = 0; $i < strlen($plaintext); $i+=$block_size) {
+                        $block = substr($plaintext, $i, $block_size);
+                        if (strlen($block) > strlen($buffer['xor'])) {
+                            $xor = $this->_encryptBlock($xor);
+                            $buffer['xor'].= $xor;
+                        }
+                        $key = $this->_string_shift($buffer['xor'], $block_size);
+                        $ciphertext.= $block ^ $key;
+                    }
+                } else {
+                    for ($i = 0; $i < strlen($plaintext); $i+=$block_size) {
+                        $xor = $this->_encryptBlock($xor);
+                        $ciphertext.= substr($plaintext, $i, $block_size) ^ $xor;
+                    }
+                    $key = $xor;
+                }
+                if ($this->continuousBuffer) {
+                    $this->encryptIV = $xor;
+                    if ($start = strlen($plaintext) % $block_size) {
+                        $buffer['xor'] = substr($key, $start) . $buffer['xor'];
+                    }
+                }
+                break;
+            case self::MODE_STREAM:
+                $ciphertext = $this->_encryptBlock($plaintext);
+                break;
+        }
+
+        return $ciphertext;
+    }
+
+    /**
+     * Decrypts a message.
+     *
+     * If strlen($ciphertext) is not a multiple of the block size, null bytes will be added to the end of the string until
+     * it is.
+     *
+     * @see self::encrypt()
+     * @access public
+     * @param string $ciphertext
+     * @return string $plaintext
+     * @internal Could, but not must, extend by the child Crypt_* class
+     */
+    function decrypt($ciphertext)
+    {
+        if ($this->paddable) {
+            // we pad with chr(0) since that's what mcrypt_generic does.  to quote from {@link http://www.php.net/function.mcrypt-generic}:
+            // "The data is padded with "\0" to make sure the length of the data is n * blocksize."
+            $ciphertext = str_pad($ciphertext, strlen($ciphertext) + ($this->block_size - strlen($ciphertext) % $this->block_size) % $this->block_size, chr(0));
+        }
+
+        if ($this->engine === self::ENGINE_OPENSSL) {
+            if ($this->changed) {
+                $this->_clearBuffers();
+                $this->changed = false;
+            }
+            switch ($this->mode) {
+                case self::MODE_STREAM:
+                    $plaintext = openssl_decrypt($ciphertext, $this->cipher_name_openssl, $this->key, $this->openssl_options);
+                    break;
+                case self::MODE_ECB:
+                    if (!defined('OPENSSL_RAW_DATA')) {
+                        $ciphertext.= openssl_encrypt('', $this->cipher_name_openssl_ecb, $this->key, true);
+                    }
+                    $plaintext = openssl_decrypt($ciphertext, $this->cipher_name_openssl, $this->key, $this->openssl_options);
+                    break;
+                case self::MODE_CBC:
+                    if (!defined('OPENSSL_RAW_DATA')) {
+                        $padding = str_repeat(chr($this->block_size), $this->block_size) ^ substr($ciphertext, -$this->block_size);
+                        $ciphertext.= substr(openssl_encrypt($padding, $this->cipher_name_openssl_ecb, $this->key, true), 0, $this->block_size);
+                        $offset = 2 * $this->block_size;
+                    } else {
+                        $offset = $this->block_size;
+                    }
+                    $plaintext = openssl_decrypt($ciphertext, $this->cipher_name_openssl, $this->key, $this->openssl_options, $this->decryptIV);
+                    if ($this->continuousBuffer) {
+                        $this->decryptIV = substr($ciphertext, -$offset, $this->block_size);
+                    }
+                    break;
+                case self::MODE_CTR:
+                    $plaintext = $this->_openssl_ctr_process($ciphertext, $this->decryptIV, $this->debuffer);
+                    break;
+                case self::MODE_CFB:
+                    // cfb loosely routines inspired by openssl's:
+                    // {@link http://cvs.openssl.org/fileview?f=openssl/crypto/modes/cfb128.c&v=1.3.2.2.2.1}
+                    $plaintext = '';
+                    if ($this->continuousBuffer) {
+                        $iv = &$this->decryptIV;
+                        $pos = &$this->buffer['pos'];
+                    } else {
+                        $iv = $this->decryptIV;
+                        $pos = 0;
+                    }
+                    $len = strlen($ciphertext);
+                    $i = 0;
+                    if ($pos) {
+                        $orig_pos = $pos;
+                        $max = $this->block_size - $pos;
+                        if ($len >= $max) {
+                            $i = $max;
+                            $len-= $max;
+                            $pos = 0;
+                        } else {
+                            $i = $len;
+                            $pos+= $len;
+                            $len = 0;
+                        }
+                        // ie. $i = min($max, $len), $len-= $i, $pos+= $i, $pos%= $this->blocksize
+                        $plaintext = substr($iv, $orig_pos) ^ $ciphertext;
+                        $iv = substr_replace($iv, substr($ciphertext, 0, $i), $orig_pos, $i);
+                        $ciphertext = substr($ciphertext, $i);
+                    }
+                    $overflow = $len % $this->block_size;
+                    if ($overflow) {
+                        $plaintext.= openssl_decrypt(substr($ciphertext, 0, -$overflow), $this->cipher_name_openssl, $this->key, $this->openssl_options, $iv);
+                        if ($len - $overflow) {
+                            $iv = substr($ciphertext, -$overflow - $this->block_size, -$overflow);
+                        }
+                        $iv = openssl_encrypt(str_repeat("\0", $this->block_size), $this->cipher_name_openssl, $this->key, $this->openssl_options, $iv);
+                        $plaintext.= $iv ^ substr($ciphertext, -$overflow);
+                        $iv = substr_replace($iv, substr($ciphertext, -$overflow), 0, $overflow);
+                        $pos = $overflow;
+                    } elseif ($len) {
+                        $plaintext.= openssl_decrypt($ciphertext, $this->cipher_name_openssl, $this->key, $this->openssl_options, $iv);
+                        $iv = substr($ciphertext, -$this->block_size);
+                    }
+                    break;
+                case self::MODE_OFB:
+                    $plaintext = $this->_openssl_ofb_process($ciphertext, $this->decryptIV, $this->debuffer);
+            }
+
+            return $this->paddable ? $this->_unpad($plaintext) : $plaintext;
+        }
+
+        if ($this->engine === self::ENGINE_MCRYPT) {
+            $block_size = $this->block_size;
+            if ($this->changed) {
+                $this->_setupMcrypt();
+                $this->changed = false;
+            }
+            if ($this->dechanged) {
+                @mcrypt_generic_init($this->demcrypt, $this->key, $this->decryptIV);
+                $this->dechanged = false;
+            }
+
+            if ($this->mode == self::MODE_CFB && $this->continuousBuffer) {
+                $iv = &$this->decryptIV;
+                $pos = &$this->debuffer['pos'];
+                $len = strlen($ciphertext);
+                $plaintext = '';
+                $i = 0;
+                if ($pos) {
+                    $orig_pos = $pos;
+                    $max = $block_size - $pos;
+                    if ($len >= $max) {
+                        $i = $max;
+                        $len-= $max;
+                        $pos = 0;
+                    } else {
+                        $i = $len;
+                        $pos+= $len;
+                        $len = 0;
+                    }
+                    // ie. $i = min($max, $len), $len-= $i, $pos+= $i, $pos%= $blocksize
+                    $plaintext = substr($iv, $orig_pos) ^ $ciphertext;
+                    $iv = substr_replace($iv, substr($ciphertext, 0, $i), $orig_pos, $i);
+                }
+                if ($len >= $block_size) {
+                    $cb = substr($ciphertext, $i, $len - $len % $block_size);
+                    $plaintext.= @mcrypt_generic($this->ecb, $iv . $cb) ^ $cb;
+                    $iv = substr($cb, -$block_size);
+                    $len%= $block_size;
+                }
+                if ($len) {
+                    $iv = @mcrypt_generic($this->ecb, $iv);
+                    $plaintext.= $iv ^ substr($ciphertext, -$len);
+                    $iv = substr_replace($iv, substr($ciphertext, -$len), 0, $len);
+                    $pos = $len;
+                }
+
+                return $plaintext;
+            }
+
+            $plaintext = @mdecrypt_generic($this->demcrypt, $ciphertext);
+
+            if (!$this->continuousBuffer) {
+                @mcrypt_generic_init($this->demcrypt, $this->key, $this->decryptIV);
+            }
+
+            return $this->paddable ? $this->_unpad($plaintext) : $plaintext;
+        }
+
+        if ($this->changed) {
+            $this->_setup();
+            $this->changed = false;
+        }
+        if ($this->use_inline_crypt) {
+            $inline = $this->inline_crypt;
+            return $inline('decrypt', $this, $ciphertext);
+        }
+
+        $block_size = $this->block_size;
+
+        $buffer = &$this->debuffer;
+        $plaintext = '';
+        switch ($this->mode) {
+            case self::MODE_ECB:
+                for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) {
+                    $plaintext.= $this->_decryptBlock(substr($ciphertext, $i, $block_size));
+                }
+                break;
+            case self::MODE_CBC:
+                $xor = $this->decryptIV;
+                for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) {
+                    $block = substr($ciphertext, $i, $block_size);
+                    $plaintext.= $this->_decryptBlock($block) ^ $xor;
+                    $xor = $block;
+                }
+                if ($this->continuousBuffer) {
+                    $this->decryptIV = $xor;
+                }
+                break;
+            case self::MODE_CTR:
+                $xor = $this->decryptIV;
+                if (strlen($buffer['ciphertext'])) {
+                    for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) {
+                        $block = substr($ciphertext, $i, $block_size);
+                        if (strlen($block) > strlen($buffer['ciphertext'])) {
+                            $buffer['ciphertext'].= $this->_encryptBlock($xor);
+                            $this->_increment_str($xor);
+                        }
+                        $key = $this->_string_shift($buffer['ciphertext'], $block_size);
+                        $plaintext.= $block ^ $key;
+                    }
+                } else {
+                    for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) {
+                        $block = substr($ciphertext, $i, $block_size);
+                        $key = $this->_encryptBlock($xor);
+                        $this->_increment_str($xor);
+                        $plaintext.= $block ^ $key;
+                    }
+                }
+                if ($this->continuousBuffer) {
+                    $this->decryptIV = $xor;
+                    if ($start = strlen($ciphertext) % $block_size) {
+                        $buffer['ciphertext'] = substr($key, $start) . $buffer['ciphertext'];
+                    }
+                }
+                break;
+            case self::MODE_CFB:
+                if ($this->continuousBuffer) {
+                    $iv = &$this->decryptIV;
+                    $pos = &$buffer['pos'];
+                } else {
+                    $iv = $this->decryptIV;
+                    $pos = 0;
+                }
+                $len = strlen($ciphertext);
+                $i = 0;
+                if ($pos) {
+                    $orig_pos = $pos;
+                    $max = $block_size - $pos;
+                    if ($len >= $max) {
+                        $i = $max;
+                        $len-= $max;
+                        $pos = 0;
+                    } else {
+                        $i = $len;
+                        $pos+= $len;
+                        $len = 0;
+                    }
+                    // ie. $i = min($max, $len), $len-= $i, $pos+= $i, $pos%= $blocksize
+                    $plaintext = substr($iv, $orig_pos) ^ $ciphertext;
+                    $iv = substr_replace($iv, substr($ciphertext, 0, $i), $orig_pos, $i);
+                }
+                while ($len >= $block_size) {
+                    $iv = $this->_encryptBlock($iv);
+                    $cb = substr($ciphertext, $i, $block_size);
+                    $plaintext.= $iv ^ $cb;
+                    $iv = $cb;
+                    $len-= $block_size;
+                    $i+= $block_size;
+                }
+                if ($len) {
+                    $iv = $this->_encryptBlock($iv);
+                    $plaintext.= $iv ^ substr($ciphertext, $i);
+                    $iv = substr_replace($iv, substr($ciphertext, $i), 0, $len);
+                    $pos = $len;
+                }
+                break;
+            case self::MODE_OFB:
+                $xor = $this->decryptIV;
+                if (strlen($buffer['xor'])) {
+                    for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) {
+                        $block = substr($ciphertext, $i, $block_size);
+                        if (strlen($block) > strlen($buffer['xor'])) {
+                            $xor = $this->_encryptBlock($xor);
+                            $buffer['xor'].= $xor;
+                        }
+                        $key = $this->_string_shift($buffer['xor'], $block_size);
+                        $plaintext.= $block ^ $key;
+                    }
+                } else {
+                    for ($i = 0; $i < strlen($ciphertext); $i+=$block_size) {
+                        $xor = $this->_encryptBlock($xor);
+                        $plaintext.= substr($ciphertext, $i, $block_size) ^ $xor;
+                    }
+                    $key = $xor;
+                }
+                if ($this->continuousBuffer) {
+                    $this->decryptIV = $xor;
+                    if ($start = strlen($ciphertext) % $block_size) {
+                        $buffer['xor'] = substr($key, $start) . $buffer['xor'];
+                    }
+                }
+                break;
+            case self::MODE_STREAM:
+                $plaintext = $this->_decryptBlock($ciphertext);
+                break;
+        }
+        return $this->paddable ? $this->_unpad($plaintext) : $plaintext;
+    }
+
+    /**
+     * OpenSSL CTR Processor
+     *
+     * PHP's OpenSSL bindings do not operate in continuous mode so we'll wrap around it. Since the keystream
+     * for CTR is the same for both encrypting and decrypting this function is re-used by both Base::encrypt()
+     * and Base::decrypt(). Also, OpenSSL doesn't implement CTR for all of it's symmetric ciphers so this
+     * function will emulate CTR with ECB when necessary.
+     *
+     * @see self::encrypt()
+     * @see self::decrypt()
+     * @param string $plaintext
+     * @param string $encryptIV
+     * @param array $buffer
+     * @return string
+     * @access private
+     */
+    function _openssl_ctr_process($plaintext, &$encryptIV, &$buffer)
+    {
+        $ciphertext = '';
+
+        $block_size = $this->block_size;
+        $key = $this->key;
+
+        if ($this->openssl_emulate_ctr) {
+            $xor = $encryptIV;
+            if (strlen($buffer['ciphertext'])) {
+                for ($i = 0; $i < strlen($plaintext); $i+=$block_size) {
+                    $block = substr($plaintext, $i, $block_size);
+                    if (strlen($block) > strlen($buffer['ciphertext'])) {
+                        $result = openssl_encrypt($xor, $this->cipher_name_openssl_ecb, $key, $this->openssl_options);
+                        $result = !defined('OPENSSL_RAW_DATA') ? substr($result, 0, -$this->block_size) : $result;
+                        $buffer['ciphertext'].= $result;
+                    }
+                    $this->_increment_str($xor);
+                    $otp = $this->_string_shift($buffer['ciphertext'], $block_size);
+                    $ciphertext.= $block ^ $otp;
+                }
+            } else {
+                for ($i = 0; $i < strlen($plaintext); $i+=$block_size) {
+                    $block = substr($plaintext, $i, $block_size);
+                    $otp = openssl_encrypt($xor, $this->cipher_name_openssl_ecb, $key, $this->openssl_options);
+                    $otp = !defined('OPENSSL_RAW_DATA') ? substr($otp, 0, -$this->block_size) : $otp;
+                    $this->_increment_str($xor);
+                    $ciphertext.= $block ^ $otp;
+                }
+            }
+            if ($this->continuousBuffer) {
+                $encryptIV = $xor;
+                if ($start = strlen($plaintext) % $block_size) {
+                    $buffer['ciphertext'] = substr($key, $start) . $buffer['ciphertext'];
+                }
+            }
+
+            return $ciphertext;
+        }
+
+        if (strlen($buffer['ciphertext'])) {
+            $ciphertext = $plaintext ^ $this->_string_shift($buffer['ciphertext'], strlen($plaintext));
+            $plaintext = substr($plaintext, strlen($ciphertext));
+
+            if (!strlen($plaintext)) {
+                return $ciphertext;
+            }
+        }
+
+        $overflow = strlen($plaintext) % $block_size;
+        if ($overflow) {
+            $plaintext2 = $this->_string_pop($plaintext, $overflow); // ie. trim $plaintext to a multiple of $block_size and put rest of $plaintext in $plaintext2
+            $encrypted = openssl_encrypt($plaintext . str_repeat("\0", $block_size), $this->cipher_name_openssl, $key, $this->openssl_options, $encryptIV);
+            $temp = $this->_string_pop($encrypted, $block_size);
+            $ciphertext.= $encrypted . ($plaintext2 ^ $temp);
+            if ($this->continuousBuffer) {
+                $buffer['ciphertext'] = substr($temp, $overflow);
+                $encryptIV = $temp;
+            }
+        } elseif (!strlen($buffer['ciphertext'])) {
+            $ciphertext.= openssl_encrypt($plaintext . str_repeat("\0", $block_size), $this->cipher_name_openssl, $key, $this->openssl_options, $encryptIV);
+            $temp = $this->_string_pop($ciphertext, $block_size);
+            if ($this->continuousBuffer) {
+                $encryptIV = $temp;
+            }
+        }
+        if ($this->continuousBuffer) {
+            if (!defined('OPENSSL_RAW_DATA')) {
+                $encryptIV.= openssl_encrypt('', $this->cipher_name_openssl_ecb, $key, $this->openssl_options);
+            }
+            $encryptIV = openssl_decrypt($encryptIV, $this->cipher_name_openssl_ecb, $key, $this->openssl_options);
+            if ($overflow) {
+                $this->_increment_str($encryptIV);
+            }
+        }
+
+        return $ciphertext;
+    }
+
+    /**
+     * OpenSSL OFB Processor
+     *
+     * PHP's OpenSSL bindings do not operate in continuous mode so we'll wrap around it. Since the keystream
+     * for OFB is the same for both encrypting and decrypting this function is re-used by both Base::encrypt()
+     * and Base::decrypt().
+     *
+     * @see self::encrypt()
+     * @see self::decrypt()
+     * @param string $plaintext
+     * @param string $encryptIV
+     * @param array $buffer
+     * @return string
+     * @access private
+     */
+    function _openssl_ofb_process($plaintext, &$encryptIV, &$buffer)
+    {
+        if (strlen($buffer['xor'])) {
+            $ciphertext = $plaintext ^ $buffer['xor'];
+            $buffer['xor'] = substr($buffer['xor'], strlen($ciphertext));
+            $plaintext = substr($plaintext, strlen($ciphertext));
+        } else {
+            $ciphertext = '';
+        }
+
+        $block_size = $this->block_size;
+
+        $len = strlen($plaintext);
+        $key = $this->key;
+        $overflow = $len % $block_size;
+
+        if (strlen($plaintext)) {
+            if ($overflow) {
+                $ciphertext.= openssl_encrypt(substr($plaintext, 0, -$overflow) . str_repeat("\0", $block_size), $this->cipher_name_openssl, $key, $this->openssl_options, $encryptIV);
+                $xor = $this->_string_pop($ciphertext, $block_size);
+                if ($this->continuousBuffer) {
+                    $encryptIV = $xor;
+                }
+                $ciphertext.= $this->_string_shift($xor, $overflow) ^ substr($plaintext, -$overflow);
+                if ($this->continuousBuffer) {
+                    $buffer['xor'] = $xor;
+                }
+            } else {
+                $ciphertext = openssl_encrypt($plaintext, $this->cipher_name_openssl, $key, $this->openssl_options, $encryptIV);
+                if ($this->continuousBuffer) {
+                    $encryptIV = substr($ciphertext, -$block_size) ^ substr($plaintext, -$block_size);
+                }
+            }
+        }
+
+        return $ciphertext;
+    }
+
+    /**
+     * phpseclib <-> OpenSSL Mode Mapper
+     *
+     * May need to be overwritten by classes extending this one in some cases
+     *
+     * @return int
+     * @access private
+     */
+    function _openssl_translate_mode()
+    {
+        switch ($this->mode) {
+            case self::MODE_ECB:
+                return 'ecb';
+            case self::MODE_CBC:
+                return 'cbc';
+            case self::MODE_CTR:
+                return 'ctr';
+            case self::MODE_CFB:
+                return 'cfb';
+            case self::MODE_OFB:
+                return 'ofb';
+        }
+    }
+
+    /**
+     * Pad "packets".
+     *
+     * Block ciphers working by encrypting between their specified [$this->]block_size at a time
+     * If you ever need to encrypt or decrypt something that isn't of the proper length, it becomes necessary to
+     * pad the input so that it is of the proper length.
+     *
+     * Padding is enabled by default.  Sometimes, however, it is undesirable to pad strings.  Such is the case in SSH,
+     * where "packets" are padded with random bytes before being encrypted.  Unpad these packets and you risk stripping
+     * away characters that shouldn't be stripped away. (SSH knows how many bytes are added because the length is
+     * transmitted separately)
+     *
+     * @see self::disablePadding()
+     * @access public
+     */
+    function enablePadding()
+    {
+        $this->padding = true;
+    }
+
+    /**
+     * Do not pad packets.
+     *
+     * @see self::enablePadding()
+     * @access public
+     */
+    function disablePadding()
+    {
+        $this->padding = false;
+    }
+
+    /**
+     * Treat consecutive "packets" as if they are a continuous buffer.
+     *
+     * Say you have a 32-byte plaintext $plaintext.  Using the default behavior, the two following code snippets
+     * will yield different outputs:
+     *
+     * <code>
+     *    echo $rijndael->encrypt(substr($plaintext,  0, 16));
+     *    echo $rijndael->encrypt(substr($plaintext, 16, 16));
+     * </code>
+     * <code>
+     *    echo $rijndael->encrypt($plaintext);
+     * </code>
+     *
+     * The solution is to enable the continuous buffer.  Although this will resolve the above discrepancy, it creates
+     * another, as demonstrated with the following:
+     *
+     * <code>
+     *    $rijndael->encrypt(substr($plaintext, 0, 16));
+     *    echo $rijndael->decrypt($rijndael->encrypt(substr($plaintext, 16, 16)));
+     * </code>
+     * <code>
+     *    echo $rijndael->decrypt($rijndael->encrypt(substr($plaintext, 16, 16)));
+     * </code>
+     *
+     * With the continuous buffer disabled, these would yield the same output.  With it enabled, they yield different
+     * outputs.  The reason is due to the fact that the initialization vector's change after every encryption /
+     * decryption round when the continuous buffer is enabled.  When it's disabled, they remain constant.
+     *
+     * Put another way, when the continuous buffer is enabled, the state of the \phpseclib\Crypt\*() object changes after each
+     * encryption / decryption round, whereas otherwise, it'd remain constant.  For this reason, it's recommended that
+     * continuous buffers not be used.  They do offer better security and are, in fact, sometimes required (SSH uses them),
+     * however, they are also less intuitive and more likely to cause you problems.
+     *
+     * @see self::disableContinuousBuffer()
+     * @access public
+     * @internal Could, but not must, extend by the child Crypt_* class
+     */
+    function enableContinuousBuffer()
+    {
+        if ($this->mode == self::MODE_ECB) {
+            return;
+        }
+
+        $this->continuousBuffer = true;
+
+        $this->_setEngine();
+    }
+
+    /**
+     * Treat consecutive packets as if they are a discontinuous buffer.
+     *
+     * The default behavior.
+     *
+     * @see self::enableContinuousBuffer()
+     * @access public
+     * @internal Could, but not must, extend by the child Crypt_* class
+     */
+    function disableContinuousBuffer()
+    {
+        if ($this->mode == self::MODE_ECB) {
+            return;
+        }
+        if (!$this->continuousBuffer) {
+            return;
+        }
+
+        $this->continuousBuffer = false;
+        $this->changed = true;
+
+        $this->_setEngine();
+    }
+
+    /**
+     * Test for engine validity
+     *
+     * @see self::__construct()
+     * @param int $engine
+     * @access public
+     * @return bool
+     */
+    function isValidEngine($engine)
+    {
+        switch ($engine) {
+            case self::ENGINE_OPENSSL:
+                if ($this->mode == self::MODE_STREAM && $this->continuousBuffer) {
+                    return false;
+                }
+                $this->openssl_emulate_ctr = false;
+                $result = $this->cipher_name_openssl &&
+                          extension_loaded('openssl') &&
+                          // PHP 5.3.0 - 5.3.2 did not let you set IV's
+                          version_compare(PHP_VERSION, '5.3.3', '>=');
+                if (!$result) {
+                    return false;
+                }
+
+                // prior to PHP 5.4.0 OPENSSL_RAW_DATA and OPENSSL_ZERO_PADDING were not defined. instead of expecting an integer
+                // $options openssl_encrypt expected a boolean $raw_data.
+                if (!defined('OPENSSL_RAW_DATA')) {
+                    $this->openssl_options = true;
+                } else {
+                    $this->openssl_options = OPENSSL_RAW_DATA | OPENSSL_ZERO_PADDING;
+                }
+
+                $methods = openssl_get_cipher_methods();
+                if (in_array($this->cipher_name_openssl, $methods)) {
+                    return true;
+                }
+                // not all of openssl's symmetric cipher's support ctr. for those
+                // that don't we'll emulate it
+                switch ($this->mode) {
+                    case self::MODE_CTR:
+                        if (in_array($this->cipher_name_openssl_ecb, $methods)) {
+                            $this->openssl_emulate_ctr = true;
+                            return true;
+                        }
+                }
+                return false;
+            case self::ENGINE_MCRYPT:
+                return $this->cipher_name_mcrypt &&
+                       extension_loaded('mcrypt') &&
+                       in_array($this->cipher_name_mcrypt, @mcrypt_list_algorithms());
+            case self::ENGINE_INTERNAL:
+                return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Sets the preferred crypt engine
+     *
+     * Currently, $engine could be:
+     *
+     * - \phpseclib\Crypt\Base::ENGINE_OPENSSL  [very fast]
+     *
+     * - \phpseclib\Crypt\Base::ENGINE_MCRYPT   [fast]
+     *
+     * - \phpseclib\Crypt\Base::ENGINE_INTERNAL [slow]
+     *
+     * If the preferred crypt engine is not available the fastest available one will be used
+     *
+     * @see self::__construct()
+     * @param int $engine
+     * @access public
+     */
+    function setPreferredEngine($engine)
+    {
+        switch ($engine) {
+            //case self::ENGINE_OPENSSL;
+            case self::ENGINE_MCRYPT:
+            case self::ENGINE_INTERNAL:
+                $this->preferredEngine = $engine;
+                break;
+            default:
+                $this->preferredEngine = self::ENGINE_OPENSSL;
+        }
+
+        $this->_setEngine();
+    }
+
+    /**
+     * Returns the engine currently being utilized
+     *
+     * @see self::_setEngine()
+     * @access public
+     */
+    function getEngine()
+    {
+        return $this->engine;
+    }
+
+    /**
+     * Sets the engine as appropriate
+     *
+     * @see self::__construct()
+     * @access private
+     */
+    function _setEngine()
+    {
+        $this->engine = null;
+
+        $candidateEngines = array(
+            $this->preferredEngine,
+            self::ENGINE_OPENSSL,
+            self::ENGINE_MCRYPT
+        );
+        foreach ($candidateEngines as $engine) {
+            if ($this->isValidEngine($engine)) {
+                $this->engine = $engine;
+                break;
+            }
+        }
+        if (!$this->engine) {
+            $this->engine = self::ENGINE_INTERNAL;
+        }
+
+        if ($this->engine != self::ENGINE_MCRYPT && $this->enmcrypt) {
+            // Closing the current mcrypt resource(s). _mcryptSetup() will, if needed,
+            // (re)open them with the module named in $this->cipher_name_mcrypt
+            @mcrypt_module_close($this->enmcrypt);
+            @mcrypt_module_close($this->demcrypt);
+            $this->enmcrypt = null;
+            $this->demcrypt = null;
+
+            if ($this->ecb) {
+                @mcrypt_module_close($this->ecb);
+                $this->ecb = null;
+            }
+        }
+
+        $this->changed = true;
+    }
+
+    /**
+     * Encrypts a block
+     *
+     * Note: Must be extended by the child \phpseclib\Crypt\* class
+     *
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    abstract function _encryptBlock($in);
+
+    /**
+     * Decrypts a block
+     *
+     * Note: Must be extended by the child \phpseclib\Crypt\* class
+     *
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    abstract function _decryptBlock($in);
+
+    /**
+     * Setup the key (expansion)
+     *
+     * Only used if $engine == self::ENGINE_INTERNAL
+     *
+     * Note: Must extend by the child \phpseclib\Crypt\* class
+     *
+     * @see self::_setup()
+     * @access private
+     */
+    abstract function _setupKey();
+
+    /**
+     * Setup the self::ENGINE_INTERNAL $engine
+     *
+     * (re)init, if necessary, the internal cipher $engine and flush all $buffers
+     * Used (only) if $engine == self::ENGINE_INTERNAL
+     *
+     * _setup() will be called each time if $changed === true
+     * typically this happens when using one or more of following public methods:
+     *
+     * - setKey()
+     *
+     * - setIV()
+     *
+     * - disableContinuousBuffer()
+     *
+     * - First run of encrypt() / decrypt() with no init-settings
+     *
+     * @see self::setKey()
+     * @see self::setIV()
+     * @see self::disableContinuousBuffer()
+     * @access private
+     * @internal _setup() is always called before en/decryption.
+     * @internal Could, but not must, extend by the child Crypt_* class
+     */
+    function _setup()
+    {
+        $this->_clearBuffers();
+        $this->_setupKey();
+
+        if ($this->use_inline_crypt) {
+            $this->_setupInlineCrypt();
+        }
+    }
+
+    /**
+     * Setup the self::ENGINE_MCRYPT $engine
+     *
+     * (re)init, if necessary, the (ext)mcrypt resources and flush all $buffers
+     * Used (only) if $engine = self::ENGINE_MCRYPT
+     *
+     * _setupMcrypt() will be called each time if $changed === true
+     * typically this happens when using one or more of following public methods:
+     *
+     * - setKey()
+     *
+     * - setIV()
+     *
+     * - disableContinuousBuffer()
+     *
+     * - First run of encrypt() / decrypt()
+     *
+     * @see self::setKey()
+     * @see self::setIV()
+     * @see self::disableContinuousBuffer()
+     * @access private
+     * @internal Could, but not must, extend by the child Crypt_* class
+     */
+    function _setupMcrypt()
+    {
+        $this->_clearBuffers();
+        $this->enchanged = $this->dechanged = true;
+
+        if (!isset($this->enmcrypt)) {
+            static $mcrypt_modes = array(
+                self::MODE_CTR    => 'ctr',
+                self::MODE_ECB    => MCRYPT_MODE_ECB,
+                self::MODE_CBC    => MCRYPT_MODE_CBC,
+                self::MODE_CFB    => 'ncfb',
+                self::MODE_OFB    => MCRYPT_MODE_NOFB,
+                self::MODE_STREAM => MCRYPT_MODE_STREAM,
+            );
+
+            $this->demcrypt = @mcrypt_module_open($this->cipher_name_mcrypt, '', $mcrypt_modes[$this->mode], '');
+            $this->enmcrypt = @mcrypt_module_open($this->cipher_name_mcrypt, '', $mcrypt_modes[$this->mode], '');
+
+            // we need the $ecb mcrypt resource (only) in MODE_CFB with enableContinuousBuffer()
+            // to workaround mcrypt's broken ncfb implementation in buffered mode
+            // see: {@link http://phpseclib.sourceforge.net/cfb-demo.phps}
+            if ($this->mode == self::MODE_CFB) {
+                $this->ecb = @mcrypt_module_open($this->cipher_name_mcrypt, '', MCRYPT_MODE_ECB, '');
+            }
+        } // else should mcrypt_generic_deinit be called?
+
+        if ($this->mode == self::MODE_CFB) {
+            @mcrypt_generic_init($this->ecb, $this->key, str_repeat("\0", $this->block_size));
+        }
+    }
+
+    /**
+     * Pads a string
+     *
+     * Pads a string using the RSA PKCS padding standards so that its length is a multiple of the blocksize.
+     * $this->block_size - (strlen($text) % $this->block_size) bytes are added, each of which is equal to
+     * chr($this->block_size - (strlen($text) % $this->block_size)
+     *
+     * If padding is disabled and $text is not a multiple of the blocksize, the string will be padded regardless
+     * and padding will, hence forth, be enabled.
+     *
+     * @see self::_unpad()
+     * @param string $text
+     * @access private
+     * @return string
+     */
+    function _pad($text)
+    {
+        $length = strlen($text);
+
+        if (!$this->padding) {
+            if ($length % $this->block_size == 0) {
+                return $text;
+            } else {
+                user_error("The plaintext's length ($length) is not a multiple of the block size ({$this->block_size})");
+                $this->padding = true;
+            }
+        }
+
+        $pad = $this->block_size - ($length % $this->block_size);
+
+        return str_pad($text, $length + $pad, chr($pad));
+    }
+
+    /**
+     * Unpads a string.
+     *
+     * If padding is enabled and the reported padding length is invalid the encryption key will be assumed to be wrong
+     * and false will be returned.
+     *
+     * @see self::_pad()
+     * @param string $text
+     * @access private
+     * @return string
+     */
+    function _unpad($text)
+    {
+        if (!$this->padding) {
+            return $text;
+        }
+
+        $length = ord($text[strlen($text) - 1]);
+
+        if (!$length || $length > $this->block_size) {
+            return false;
+        }
+
+        return substr($text, 0, -$length);
+    }
+
+    /**
+     * Clears internal buffers
+     *
+     * Clearing/resetting the internal buffers is done everytime
+     * after disableContinuousBuffer() or on cipher $engine (re)init
+     * ie after setKey() or setIV()
+     *
+     * @access public
+     * @internal Could, but not must, extend by the child Crypt_* class
+     */
+    function _clearBuffers()
+    {
+        $this->enbuffer = $this->debuffer = array('ciphertext' => '', 'xor' => '', 'pos' => 0, 'enmcrypt_init' => true);
+
+        // mcrypt's handling of invalid's $iv:
+        // $this->encryptIV = $this->decryptIV = strlen($this->iv) == $this->block_size ? $this->iv : str_repeat("\0", $this->block_size);
+        $this->encryptIV = $this->decryptIV = str_pad(substr($this->iv, 0, $this->block_size), $this->block_size, "\0");
+
+        if (!$this->skip_key_adjustment) {
+            $this->key = str_pad(substr($this->key, 0, $this->key_length), $this->key_length, "\0");
+        }
+    }
+
+    /**
+     * String Shift
+     *
+     * Inspired by array_shift
+     *
+     * @param string $string
+     * @param int $index
+     * @access private
+     * @return string
+     */
+    function _string_shift(&$string, $index = 1)
+    {
+        $substr = substr($string, 0, $index);
+        $string = substr($string, $index);
+        return $substr;
+    }
+
+    /**
+     * String Pop
+     *
+     * Inspired by array_pop
+     *
+     * @param string $string
+     * @param int $index
+     * @access private
+     * @return string
+     */
+    function _string_pop(&$string, $index = 1)
+    {
+        $substr = substr($string, -$index);
+        $string = substr($string, 0, -$index);
+        return $substr;
+    }
+
+    /**
+     * Increment the current string
+     *
+     * @see self::decrypt()
+     * @see self::encrypt()
+     * @param string $var
+     * @access private
+     */
+    function _increment_str(&$var)
+    {
+        for ($i = 4; $i <= strlen($var); $i+= 4) {
+            $temp = substr($var, -$i, 4);
+            switch ($temp) {
+                case "\xFF\xFF\xFF\xFF":
+                    $var = substr_replace($var, "\x00\x00\x00\x00", -$i, 4);
+                    break;
+                case "\x7F\xFF\xFF\xFF":
+                    $var = substr_replace($var, "\x80\x00\x00\x00", -$i, 4);
+                    return;
+                default:
+                    $temp = unpack('Nnum', $temp);
+                    $var = substr_replace($var, pack('N', $temp['num'] + 1), -$i, 4);
+                    return;
+            }
+        }
+
+        $remainder = strlen($var) % 4;
+
+        if ($remainder == 0) {
+            return;
+        }
+
+        $temp = unpack('Nnum', str_pad(substr($var, 0, $remainder), 4, "\0", STR_PAD_LEFT));
+        $temp = substr(pack('N', $temp['num'] + 1), -$remainder);
+        $var = substr_replace($var, $temp, 0, $remainder);
+    }
+
+    /**
+     * Setup the performance-optimized function for de/encrypt()
+     *
+     * Stores the created (or existing) callback function-name
+     * in $this->inline_crypt
+     *
+     * Internally for phpseclib developers:
+     *
+     *     _setupInlineCrypt() would be called only if:
+     *
+     *     - $engine == self::ENGINE_INTERNAL and
+     *
+     *     - $use_inline_crypt === true
+     *
+     *     - each time on _setup(), after(!) _setupKey()
+     *
+     *
+     *     This ensures that _setupInlineCrypt() has always a
+     *     full ready2go initializated internal cipher $engine state
+     *     where, for example, the keys allready expanded,
+     *     keys/block_size calculated and such.
+     *
+     *     It is, each time if called, the responsibility of _setupInlineCrypt():
+     *
+     *     - to set $this->inline_crypt to a valid and fully working callback function
+     *       as a (faster) replacement for encrypt() / decrypt()
+     *
+     *     - NOT to create unlimited callback functions (for memory reasons!)
+     *       no matter how often _setupInlineCrypt() would be called. At some
+     *       point of amount they must be generic re-useable.
+     *
+     *     - the code of _setupInlineCrypt() it self,
+     *       and the generated callback code,
+     *       must be, in following order:
+     *       - 100% safe
+     *       - 100% compatible to encrypt()/decrypt()
+     *       - using only php5+ features/lang-constructs/php-extensions if
+     *         compatibility (down to php4) or fallback is provided
+     *       - readable/maintainable/understandable/commented and... not-cryptic-styled-code :-)
+     *       - >= 10% faster than encrypt()/decrypt() [which is, by the way,
+     *         the reason for the existence of _setupInlineCrypt() :-)]
+     *       - memory-nice
+     *       - short (as good as possible)
+     *
+     * Note: - _setupInlineCrypt() is using _createInlineCryptFunction() to create the full callback function code.
+     *       - In case of using inline crypting, _setupInlineCrypt() must extend by the child \phpseclib\Crypt\* class.
+     *       - The following variable names are reserved:
+     *         - $_*  (all variable names prefixed with an underscore)
+     *         - $self (object reference to it self. Do not use $this, but $self instead)
+     *         - $in (the content of $in has to en/decrypt by the generated code)
+     *       - The callback function should not use the 'return' statement, but en/decrypt'ing the content of $in only
+     *
+     *
+     * @see self::_setup()
+     * @see self::_createInlineCryptFunction()
+     * @see self::encrypt()
+     * @see self::decrypt()
+     * @access private
+     * @internal If a Crypt_* class providing inline crypting it must extend _setupInlineCrypt()
+     */
+    function _setupInlineCrypt()
+    {
+        // If, for any reason, an extending \phpseclib\Crypt\Base() \phpseclib\Crypt\* class
+        // not using inline crypting then it must be ensured that: $this->use_inline_crypt = false
+        // ie in the class var declaration of $use_inline_crypt in general for the \phpseclib\Crypt\* class,
+        // in the constructor at object instance-time
+        // or, if it's runtime-specific, at runtime
+
+        $this->use_inline_crypt = false;
+    }
+
+    /**
+     * Creates the performance-optimized function for en/decrypt()
+     *
+     * Internally for phpseclib developers:
+     *
+     *    _createInlineCryptFunction():
+     *
+     *    - merge the $cipher_code [setup'ed by _setupInlineCrypt()]
+     *      with the current [$this->]mode of operation code
+     *
+     *    - create the $inline function, which called by encrypt() / decrypt()
+     *      as its replacement to speed up the en/decryption operations.
+     *
+     *    - return the name of the created $inline callback function
+     *
+     *    - used to speed up en/decryption
+     *
+     *
+     *
+     *    The main reason why can speed up things [up to 50%] this way are:
+     *
+     *    - using variables more effective then regular.
+     *      (ie no use of expensive arrays but integers $k_0, $k_1 ...
+     *      or even, for example, the pure $key[] values hardcoded)
+     *
+     *    - avoiding 1000's of function calls of ie _encryptBlock()
+     *      but inlining the crypt operations.
+     *      in the mode of operation for() loop.
+     *
+     *    - full loop unroll the (sometimes key-dependent) rounds
+     *      avoiding this way ++$i counters and runtime-if's etc...
+     *
+     *    The basic code architectur of the generated $inline en/decrypt()
+     *    lambda function, in pseudo php, is:
+     *
+     *    <code>
+     *    +----------------------------------------------------------------------------------------------+
+     *    | callback $inline = create_function:                                                          |
+     *    | lambda_function_0001_crypt_ECB($action, $text)                                               |
+     *    | {                                                                                            |
+     *    |     INSERT PHP CODE OF:                                                                      |
+     *    |     $cipher_code['init_crypt'];                  // general init code.                       |
+     *    |                                                  // ie: $sbox'es declarations used for       |
+     *    |                                                  //     encrypt and decrypt'ing.             |
+     *    |                                                                                              |
+     *    |     switch ($action) {                                                                       |
+     *    |         case 'encrypt':                                                                      |
+     *    |             INSERT PHP CODE OF:                                                              |
+     *    |             $cipher_code['init_encrypt'];       // encrypt sepcific init code.               |
+     *    |                                                    ie: specified $key or $box                |
+     *    |                                                        declarations for encrypt'ing.         |
+     *    |                                                                                              |
+     *    |             foreach ($ciphertext) {                                                          |
+     *    |                 $in = $block_size of $ciphertext;                                            |
+     *    |                                                                                              |
+     *    |                 INSERT PHP CODE OF:                                                          |
+     *    |                 $cipher_code['encrypt_block'];  // encrypt's (string) $in, which is always:  |
+     *    |                                                 // strlen($in) == $this->block_size          |
+     *    |                                                 // here comes the cipher algorithm in action |
+     *    |                                                 // for encryption.                           |
+     *    |                                                 // $cipher_code['encrypt_block'] has to      |
+     *    |                                                 // encrypt the content of the $in variable   |
+     *    |                                                                                              |
+     *    |                 $plaintext .= $in;                                                           |
+     *    |             }                                                                                |
+     *    |             return $plaintext;                                                               |
+     *    |                                                                                              |
+     *    |         case 'decrypt':                                                                      |
+     *    |             INSERT PHP CODE OF:                                                              |
+     *    |             $cipher_code['init_decrypt'];       // decrypt sepcific init code                |
+     *    |                                                    ie: specified $key or $box                |
+     *    |                                                        declarations for decrypt'ing.         |
+     *    |             foreach ($plaintext) {                                                           |
+     *    |                 $in = $block_size of $plaintext;                                             |
+     *    |                                                                                              |
+     *    |                 INSERT PHP CODE OF:                                                          |
+     *    |                 $cipher_code['decrypt_block'];  // decrypt's (string) $in, which is always   |
+     *    |                                                 // strlen($in) == $this->block_size          |
+     *    |                                                 // here comes the cipher algorithm in action |
+     *    |                                                 // for decryption.                           |
+     *    |                                                 // $cipher_code['decrypt_block'] has to      |
+     *    |                                                 // decrypt the content of the $in variable   |
+     *    |                 $ciphertext .= $in;                                                          |
+     *    |             }                                                                                |
+     *    |             return $ciphertext;                                                              |
+     *    |     }                                                                                        |
+     *    | }                                                                                            |
+     *    +----------------------------------------------------------------------------------------------+
+     *    </code>
+     *
+     *    See also the \phpseclib\Crypt\*::_setupInlineCrypt()'s for
+     *    productive inline $cipher_code's how they works.
+     *
+     *    Structure of:
+     *    <code>
+     *    $cipher_code = array(
+     *        'init_crypt'    => (string) '', // optional
+     *        'init_encrypt'  => (string) '', // optional
+     *        'init_decrypt'  => (string) '', // optional
+     *        'encrypt_block' => (string) '', // required
+     *        'decrypt_block' => (string) ''  // required
+     *    );
+     *    </code>
+     *
+     * @see self::_setupInlineCrypt()
+     * @see self::encrypt()
+     * @see self::decrypt()
+     * @param array $cipher_code
+     * @access private
+     * @return string (the name of the created callback function)
+     */
+    function _createInlineCryptFunction($cipher_code)
+    {
+        $block_size = $this->block_size;
+
+        // optional
+        $init_crypt    = isset($cipher_code['init_crypt'])    ? $cipher_code['init_crypt']    : '';
+        $init_encrypt  = isset($cipher_code['init_encrypt'])  ? $cipher_code['init_encrypt']  : '';
+        $init_decrypt  = isset($cipher_code['init_decrypt'])  ? $cipher_code['init_decrypt']  : '';
+        // required
+        $encrypt_block = $cipher_code['encrypt_block'];
+        $decrypt_block = $cipher_code['decrypt_block'];
+
+        // Generating mode of operation inline code,
+        // merged with the $cipher_code algorithm
+        // for encrypt- and decryption.
+        switch ($this->mode) {
+            case self::MODE_ECB:
+                $encrypt = $init_encrypt . '
+                    $_ciphertext = "";
+                    $_plaintext_len = strlen($_text);
+
+                    for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') {
+                        $in = substr($_text, $_i, '.$block_size.');
+                        '.$encrypt_block.'
+                        $_ciphertext.= $in;
+                    }
+
+                    return $_ciphertext;
+                    ';
+
+                $decrypt = $init_decrypt . '
+                    $_plaintext = "";
+                    $_text = str_pad($_text, strlen($_text) + ('.$block_size.' - strlen($_text) % '.$block_size.') % '.$block_size.', chr(0));
+                    $_ciphertext_len = strlen($_text);
+
+                    for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') {
+                        $in = substr($_text, $_i, '.$block_size.');
+                        '.$decrypt_block.'
+                        $_plaintext.= $in;
+                    }
+
+                    return $self->_unpad($_plaintext);
+                    ';
+                break;
+            case self::MODE_CTR:
+                $encrypt = $init_encrypt . '
+                    $_ciphertext = "";
+                    $_plaintext_len = strlen($_text);
+                    $_xor = $self->encryptIV;
+                    $_buffer = &$self->enbuffer;
+                    if (strlen($_buffer["ciphertext"])) {
+                        for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') {
+                            $_block = substr($_text, $_i, '.$block_size.');
+                            if (strlen($_block) > strlen($_buffer["ciphertext"])) {
+                                $in = $_xor;
+                                '.$encrypt_block.'
+                                $self->_increment_str($_xor);
+                                $_buffer["ciphertext"].= $in;
+                            }
+                            $_key = $self->_string_shift($_buffer["ciphertext"], '.$block_size.');
+                            $_ciphertext.= $_block ^ $_key;
+                        }
+                    } else {
+                        for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') {
+                            $_block = substr($_text, $_i, '.$block_size.');
+                            $in = $_xor;
+                            '.$encrypt_block.'
+                            $self->_increment_str($_xor);
+                            $_key = $in;
+                            $_ciphertext.= $_block ^ $_key;
+                        }
+                    }
+                    if ($self->continuousBuffer) {
+                        $self->encryptIV = $_xor;
+                        if ($_start = $_plaintext_len % '.$block_size.') {
+                            $_buffer["ciphertext"] = substr($_key, $_start) . $_buffer["ciphertext"];
+                        }
+                    }
+
+                    return $_ciphertext;
+                ';
+
+                $decrypt = $init_encrypt . '
+                    $_plaintext = "";
+                    $_ciphertext_len = strlen($_text);
+                    $_xor = $self->decryptIV;
+                    $_buffer = &$self->debuffer;
+
+                    if (strlen($_buffer["ciphertext"])) {
+                        for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') {
+                            $_block = substr($_text, $_i, '.$block_size.');
+                            if (strlen($_block) > strlen($_buffer["ciphertext"])) {
+                                $in = $_xor;
+                                '.$encrypt_block.'
+                                $self->_increment_str($_xor);
+                                $_buffer["ciphertext"].= $in;
+                            }
+                            $_key = $self->_string_shift($_buffer["ciphertext"], '.$block_size.');
+                            $_plaintext.= $_block ^ $_key;
+                        }
+                    } else {
+                        for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') {
+                            $_block = substr($_text, $_i, '.$block_size.');
+                            $in = $_xor;
+                            '.$encrypt_block.'
+                            $self->_increment_str($_xor);
+                            $_key = $in;
+                            $_plaintext.= $_block ^ $_key;
+                        }
+                    }
+                    if ($self->continuousBuffer) {
+                        $self->decryptIV = $_xor;
+                        if ($_start = $_ciphertext_len % '.$block_size.') {
+                            $_buffer["ciphertext"] = substr($_key, $_start) . $_buffer["ciphertext"];
+                        }
+                    }
+
+                    return $_plaintext;
+                    ';
+                break;
+            case self::MODE_CFB:
+                $encrypt = $init_encrypt . '
+                    $_ciphertext = "";
+                    $_buffer = &$self->enbuffer;
+
+                    if ($self->continuousBuffer) {
+                        $_iv = &$self->encryptIV;
+                        $_pos = &$_buffer["pos"];
+                    } else {
+                        $_iv = $self->encryptIV;
+                        $_pos = 0;
+                    }
+                    $_len = strlen($_text);
+                    $_i = 0;
+                    if ($_pos) {
+                        $_orig_pos = $_pos;
+                        $_max = '.$block_size.' - $_pos;
+                        if ($_len >= $_max) {
+                            $_i = $_max;
+                            $_len-= $_max;
+                            $_pos = 0;
+                        } else {
+                            $_i = $_len;
+                            $_pos+= $_len;
+                            $_len = 0;
+                        }
+                        $_ciphertext = substr($_iv, $_orig_pos) ^ $_text;
+                        $_iv = substr_replace($_iv, $_ciphertext, $_orig_pos, $_i);
+                    }
+                    while ($_len >= '.$block_size.') {
+                        $in = $_iv;
+                        '.$encrypt_block.';
+                        $_iv = $in ^ substr($_text, $_i, '.$block_size.');
+                        $_ciphertext.= $_iv;
+                        $_len-= '.$block_size.';
+                        $_i+= '.$block_size.';
+                    }
+                    if ($_len) {
+                        $in = $_iv;
+                        '.$encrypt_block.'
+                        $_iv = $in;
+                        $_block = $_iv ^ substr($_text, $_i);
+                        $_iv = substr_replace($_iv, $_block, 0, $_len);
+                        $_ciphertext.= $_block;
+                        $_pos = $_len;
+                    }
+                    return $_ciphertext;
+                ';
+
+                $decrypt = $init_encrypt . '
+                    $_plaintext = "";
+                    $_buffer = &$self->debuffer;
+
+                    if ($self->continuousBuffer) {
+                        $_iv = &$self->decryptIV;
+                        $_pos = &$_buffer["pos"];
+                    } else {
+                        $_iv = $self->decryptIV;
+                        $_pos = 0;
+                    }
+                    $_len = strlen($_text);
+                    $_i = 0;
+                    if ($_pos) {
+                        $_orig_pos = $_pos;
+                        $_max = '.$block_size.' - $_pos;
+                        if ($_len >= $_max) {
+                            $_i = $_max;
+                            $_len-= $_max;
+                            $_pos = 0;
+                        } else {
+                            $_i = $_len;
+                            $_pos+= $_len;
+                            $_len = 0;
+                        }
+                        $_plaintext = substr($_iv, $_orig_pos) ^ $_text;
+                        $_iv = substr_replace($_iv, substr($_text, 0, $_i), $_orig_pos, $_i);
+                    }
+                    while ($_len >= '.$block_size.') {
+                        $in = $_iv;
+                        '.$encrypt_block.'
+                        $_iv = $in;
+                        $cb = substr($_text, $_i, '.$block_size.');
+                        $_plaintext.= $_iv ^ $cb;
+                        $_iv = $cb;
+                        $_len-= '.$block_size.';
+                        $_i+= '.$block_size.';
+                    }
+                    if ($_len) {
+                        $in = $_iv;
+                        '.$encrypt_block.'
+                        $_iv = $in;
+                        $_plaintext.= $_iv ^ substr($_text, $_i);
+                        $_iv = substr_replace($_iv, substr($_text, $_i), 0, $_len);
+                        $_pos = $_len;
+                    }
+
+                    return $_plaintext;
+                    ';
+                break;
+            case self::MODE_OFB:
+                $encrypt = $init_encrypt . '
+                    $_ciphertext = "";
+                    $_plaintext_len = strlen($_text);
+                    $_xor = $self->encryptIV;
+                    $_buffer = &$self->enbuffer;
+
+                    if (strlen($_buffer["xor"])) {
+                        for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') {
+                            $_block = substr($_text, $_i, '.$block_size.');
+                            if (strlen($_block) > strlen($_buffer["xor"])) {
+                                $in = $_xor;
+                                '.$encrypt_block.'
+                                $_xor = $in;
+                                $_buffer["xor"].= $_xor;
+                            }
+                            $_key = $self->_string_shift($_buffer["xor"], '.$block_size.');
+                            $_ciphertext.= $_block ^ $_key;
+                        }
+                    } else {
+                        for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') {
+                            $in = $_xor;
+                            '.$encrypt_block.'
+                            $_xor = $in;
+                            $_ciphertext.= substr($_text, $_i, '.$block_size.') ^ $_xor;
+                        }
+                        $_key = $_xor;
+                    }
+                    if ($self->continuousBuffer) {
+                        $self->encryptIV = $_xor;
+                        if ($_start = $_plaintext_len % '.$block_size.') {
+                             $_buffer["xor"] = substr($_key, $_start) . $_buffer["xor"];
+                        }
+                    }
+                    return $_ciphertext;
+                    ';
+
+                $decrypt = $init_encrypt . '
+                    $_plaintext = "";
+                    $_ciphertext_len = strlen($_text);
+                    $_xor = $self->decryptIV;
+                    $_buffer = &$self->debuffer;
+
+                    if (strlen($_buffer["xor"])) {
+                        for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') {
+                            $_block = substr($_text, $_i, '.$block_size.');
+                            if (strlen($_block) > strlen($_buffer["xor"])) {
+                                $in = $_xor;
+                                '.$encrypt_block.'
+                                $_xor = $in;
+                                $_buffer["xor"].= $_xor;
+                            }
+                            $_key = $self->_string_shift($_buffer["xor"], '.$block_size.');
+                            $_plaintext.= $_block ^ $_key;
+                        }
+                    } else {
+                        for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') {
+                            $in = $_xor;
+                            '.$encrypt_block.'
+                            $_xor = $in;
+                            $_plaintext.= substr($_text, $_i, '.$block_size.') ^ $_xor;
+                        }
+                        $_key = $_xor;
+                    }
+                    if ($self->continuousBuffer) {
+                        $self->decryptIV = $_xor;
+                        if ($_start = $_ciphertext_len % '.$block_size.') {
+                             $_buffer["xor"] = substr($_key, $_start) . $_buffer["xor"];
+                        }
+                    }
+                    return $_plaintext;
+                    ';
+                break;
+            case self::MODE_STREAM:
+                $encrypt = $init_encrypt . '
+                    $_ciphertext = "";
+                    '.$encrypt_block.'
+                    return $_ciphertext;
+                    ';
+                $decrypt = $init_decrypt . '
+                    $_plaintext = "";
+                    '.$decrypt_block.'
+                    return $_plaintext;
+                    ';
+                break;
+            // case self::MODE_CBC:
+            default:
+                $encrypt = $init_encrypt . '
+                    $_ciphertext = "";
+                    $_plaintext_len = strlen($_text);
+
+                    $in = $self->encryptIV;
+
+                    for ($_i = 0; $_i < $_plaintext_len; $_i+= '.$block_size.') {
+                        $in = substr($_text, $_i, '.$block_size.') ^ $in;
+                        '.$encrypt_block.'
+                        $_ciphertext.= $in;
+                    }
+
+                    if ($self->continuousBuffer) {
+                        $self->encryptIV = $in;
+                    }
+
+                    return $_ciphertext;
+                    ';
+
+                $decrypt = $init_decrypt . '
+                    $_plaintext = "";
+                    $_text = str_pad($_text, strlen($_text) + ('.$block_size.' - strlen($_text) % '.$block_size.') % '.$block_size.', chr(0));
+                    $_ciphertext_len = strlen($_text);
+
+                    $_iv = $self->decryptIV;
+
+                    for ($_i = 0; $_i < $_ciphertext_len; $_i+= '.$block_size.') {
+                        $in = $_block = substr($_text, $_i, '.$block_size.');
+                        '.$decrypt_block.'
+                        $_plaintext.= $in ^ $_iv;
+                        $_iv = $_block;
+                    }
+
+                    if ($self->continuousBuffer) {
+                        $self->decryptIV = $_iv;
+                    }
+
+                    return $self->_unpad($_plaintext);
+                    ';
+                break;
+        }
+
+        // Create the $inline function and return its name as string. Ready to run!
+        if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
+            eval('$func = function ($_action, &$self, $_text) { ' . $init_crypt . 'if ($_action == "encrypt") { ' . $encrypt . ' } else { ' . $decrypt . ' } };');
+            return $func;
+        }
+
+        return create_function('$_action, &$self, $_text', $init_crypt . 'if ($_action == "encrypt") { ' . $encrypt . ' } else { ' . $decrypt . ' }');
+    }
+
+    /**
+     * Holds the lambda_functions table (classwide)
+     *
+     * Each name of the lambda function, created from
+     * _setupInlineCrypt() && _createInlineCryptFunction()
+     * is stored, classwide (!), here for reusing.
+     *
+     * The string-based index of $function is a classwide
+     * unique value representing, at least, the $mode of
+     * operation (or more... depends of the optimizing level)
+     * for which $mode the lambda function was created.
+     *
+     * @access private
+     * @return array &$functions
+     */
+    function &_getLambdaFunctions()
+    {
+        static $functions = array();
+        return $functions;
+    }
+
+    /**
+     * Generates a digest from $bytes
+     *
+     * @see self::_setupInlineCrypt()
+     * @access private
+     * @param $bytes
+     * @return string
+     */
+    function _hashInlineCryptFunction($bytes)
+    {
+        if (!isset(self::$WHIRLPOOL_AVAILABLE)) {
+            self::$WHIRLPOOL_AVAILABLE = extension_loaded('hash') && in_array('whirlpool', hash_algos());
+        }
+
+        $result = '';
+        $hash = $bytes;
+
+        switch (true) {
+            case self::$WHIRLPOOL_AVAILABLE:
+                foreach (str_split($bytes, 64) as $t) {
+                    $hash = hash('whirlpool', $hash, true);
+                    $result .= $t ^ $hash;
+                }
+                return $result . hash('whirlpool', $hash, true);
+            default:
+                $len = strlen($bytes);
+                for ($i = 0; $i < $len; $i+=20) {
+                    $t = substr($bytes, $i, 20);
+                    $hash = pack('H*', sha1($hash));
+                    $result .= $t ^ $hash;
+                }
+                return $result . pack('H*', sha1($hash));
+        }
+    }
+
+    /**
+     * Convert float to int
+     *
+     * On ARM CPUs converting floats to ints doesn't always work
+     *
+     * @access private
+     * @param string $x
+     * @return int
+     */
+    function safe_intval($x)
+    {
+        switch (true) {
+            case is_int($x):
+            // PHP 5.3, per http://php.net/releases/5_3_0.php, introduced "more consistent float rounding"
+            case (php_uname('m') & "\xDF\xDF\xDF") != 'ARM':
+                return $x;
+        }
+        return (fmod($x, 0x80000000) & 0x7FFFFFFF) |
+            ((fmod(floor($x / 0x80000000), 2) & 1) << 31);
+    }
+
+    /**
+     * eval()'able string for in-line float to int
+     *
+     * @access private
+     * @return string
+     */
+    function safe_intval_inline()
+    {
+        switch (true) {
+            case defined('PHP_INT_SIZE') && PHP_INT_SIZE == 8:
+            case (php_uname('m') & "\xDF\xDF\xDF") != 'ARM':
+                return '%s';
+                break;
+            default:
+                $safeint = '(is_int($temp = %s) ? $temp : (fmod($temp, 0x80000000) & 0x7FFFFFFF) | ';
+                return $safeint . '((fmod(floor($temp / 0x80000000), 2) & 1) << 31))';
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Blowfish.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Blowfish.php
new file mode 100644
index 0000000..74cc49d
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Blowfish.php
@@ -0,0 +1,571 @@
+<?php
+
+/**
+ * Pure-PHP implementation of Blowfish.
+ *
+ * Uses mcrypt, if available, and an internal implementation, otherwise.
+ *
+ * PHP version 5
+ *
+ * Useful resources are as follows:
+ *
+ *  - {@link http://en.wikipedia.org/wiki/Blowfish_(cipher) Wikipedia description of Blowfish}
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $blowfish = new \phpseclib\Crypt\Blowfish();
+ *
+ *    $blowfish->setKey('12345678901234567890123456789012');
+ *
+ *    $plaintext = str_repeat('a', 1024);
+ *
+ *    echo $blowfish->decrypt($blowfish->encrypt($plaintext));
+ * ?>
+ * </code>
+ *
+ * @category  Crypt
+ * @package   Blowfish
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @author    Hans-Juergen Petrich <petrich@tronic-media.com>
+ * @copyright 2007 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Pure-PHP implementation of Blowfish.
+ *
+ * @package Blowfish
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @author  Hans-Juergen Petrich <petrich@tronic-media.com>
+ * @access  public
+ */
+class Blowfish extends Base
+{
+    /**
+     * Block Length of the cipher
+     *
+     * @see \phpseclib\Crypt\Base::block_size
+     * @var int
+     * @access private
+     */
+    var $block_size = 8;
+
+    /**
+     * The mcrypt specific name of the cipher
+     *
+     * @see \phpseclib\Crypt\Base::cipher_name_mcrypt
+     * @var string
+     * @access private
+     */
+    var $cipher_name_mcrypt = 'blowfish';
+
+    /**
+     * Optimizing value while CFB-encrypting
+     *
+     * @see \phpseclib\Crypt\Base::cfb_init_len
+     * @var int
+     * @access private
+     */
+    var $cfb_init_len = 500;
+
+    /**
+     * The fixed subkeys boxes ($sbox0 - $sbox3) with 256 entries each
+     *
+     * S-Box 0
+     *
+     * @access private
+     * @var    array
+     */
+    var $sbox0 = array(
+        0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7, 0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
+        0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16, 0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
+        0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee, 0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
+        0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef, 0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
+        0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60, 0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
+        0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce, 0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
+        0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e, 0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
+        0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193, 0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
+        0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88, 0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
+        0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e, 0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
+        0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3, 0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
+        0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88, 0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
+        0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6, 0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
+        0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b, 0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
+        0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba, 0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
+        0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f, 0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
+        0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3, 0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
+        0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279, 0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
+        0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab, 0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
+        0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db, 0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
+        0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0, 0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
+        0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790, 0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
+        0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4, 0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
+        0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7, 0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
+        0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad, 0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
+        0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299, 0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
+        0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477, 0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
+        0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49, 0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
+        0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa, 0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
+        0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41, 0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
+        0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400, 0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
+        0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664, 0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a
+    );
+
+    /**
+     * S-Box 1
+     *
+     * @access private
+     * @var    array
+     */
+    var $sbox1 = array(
+        0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623, 0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
+        0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1, 0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
+        0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6, 0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
+        0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e, 0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
+        0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737, 0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
+        0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff, 0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
+        0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701, 0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
+        0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41, 0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
+        0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf, 0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
+        0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e, 0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
+        0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c, 0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
+        0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16, 0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
+        0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b, 0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
+        0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e, 0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
+        0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f, 0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
+        0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4, 0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
+        0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66, 0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
+        0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802, 0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
+        0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510, 0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
+        0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14, 0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
+        0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50, 0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
+        0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8, 0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
+        0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99, 0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
+        0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128, 0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
+        0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0, 0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
+        0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105, 0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
+        0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3, 0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
+        0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00, 0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
+        0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb, 0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
+        0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735, 0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
+        0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9, 0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
+        0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20, 0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7
+    );
+
+    /**
+     * S-Box 2
+     *
+     * @access private
+     * @var    array
+     */
+    var $sbox2 = array(
+        0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934, 0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
+        0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af, 0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
+        0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45, 0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
+        0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a, 0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
+        0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee, 0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
+        0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42, 0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
+        0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2, 0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
+        0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527, 0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
+        0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33, 0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
+        0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3, 0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
+        0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17, 0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
+        0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b, 0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
+        0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922, 0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
+        0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0, 0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
+        0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37, 0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
+        0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804, 0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
+        0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3, 0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
+        0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d, 0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
+        0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350, 0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
+        0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a, 0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
+        0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d, 0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
+        0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f, 0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
+        0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2, 0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
+        0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2, 0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
+        0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e, 0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
+        0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10, 0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
+        0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52, 0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
+        0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5, 0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
+        0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634, 0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
+        0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24, 0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
+        0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4, 0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
+        0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837, 0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0
+    );
+
+    /**
+     * S-Box 3
+     *
+     * @access private
+     * @var    array
+     */
+    var $sbox3 = array(
+        0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b, 0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
+        0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b, 0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
+        0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8, 0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
+        0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304, 0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
+        0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4, 0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
+        0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9, 0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
+        0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593, 0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
+        0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28, 0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
+        0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b, 0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
+        0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c, 0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
+        0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a, 0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
+        0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb, 0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
+        0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991, 0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
+        0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680, 0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
+        0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae, 0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
+        0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5, 0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
+        0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370, 0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
+        0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84, 0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
+        0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8, 0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
+        0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9, 0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
+        0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38, 0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
+        0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c, 0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
+        0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1, 0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
+        0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964, 0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
+        0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8, 0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
+        0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f, 0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
+        0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02, 0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
+        0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614, 0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
+        0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6, 0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
+        0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0, 0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
+        0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e, 0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
+        0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f, 0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6
+    );
+
+    /**
+     * P-Array consists of 18 32-bit subkeys
+     *
+     * @var array
+     * @access private
+     */
+    var $parray = array(
+        0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344, 0xa4093822, 0x299f31d0,
+        0x082efa98, 0xec4e6c89, 0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
+        0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917, 0x9216d5d9, 0x8979fb1b
+    );
+
+    /**
+     * The BCTX-working Array
+     *
+     * Holds the expanded key [p] and the key-depended s-boxes [sb]
+     *
+     * @var array
+     * @access private
+     */
+    var $bctx;
+
+    /**
+     * Holds the last used key
+     *
+     * @var array
+     * @access private
+     */
+    var $kl;
+
+    /**
+     * The Key Length (in bytes)
+     *
+     * @see \phpseclib\Crypt\Base::setKeyLength()
+     * @var int
+     * @access private
+     * @internal The max value is 256 / 8 = 32, the min value is 128 / 8 = 16.  Exists in conjunction with $Nk
+     *    because the encryption / decryption / key schedule creation requires this number and not $key_length.  We could
+     *    derive this from $key_length or vice versa, but that'd mean we'd have to do multiple shift operations, so in lieu
+     *    of that, we'll just precompute it once.
+     */
+    var $key_length = 16;
+
+    /**
+     * Sets the key length.
+     *
+     * Key lengths can be between 32 and 448 bits.
+     *
+     * @access public
+     * @param int $length
+     */
+    function setKeyLength($length)
+    {
+        if ($length < 32) {
+            $this->key_length = 4;
+        } elseif ($length > 448) {
+            $this->key_length = 56;
+        } else {
+            $this->key_length = $length >> 3;
+        }
+
+        parent::setKeyLength($length);
+    }
+
+    /**
+     * Test for engine validity
+     *
+     * This is mainly just a wrapper to set things up for \phpseclib\Crypt\Base::isValidEngine()
+     *
+     * @see \phpseclib\Crypt\Base::isValidEngine()
+     * @param int $engine
+     * @access public
+     * @return bool
+     */
+    function isValidEngine($engine)
+    {
+        if ($engine == self::ENGINE_OPENSSL) {
+            if (version_compare(PHP_VERSION, '5.3.7') < 0 && $this->key_length != 16) {
+                return false;
+            }
+            if ($this->key_length < 16) {
+                return false;
+            }
+            $this->cipher_name_openssl_ecb = 'bf-ecb';
+            $this->cipher_name_openssl = 'bf-' . $this->_openssl_translate_mode();
+        }
+
+        return parent::isValidEngine($engine);
+    }
+
+    /**
+     * Setup the key (expansion)
+     *
+     * @see \phpseclib\Crypt\Base::_setupKey()
+     * @access private
+     */
+    function _setupKey()
+    {
+        if (isset($this->kl['key']) && $this->key === $this->kl['key']) {
+            // already expanded
+            return;
+        }
+        $this->kl = array('key' => $this->key);
+
+        /* key-expanding p[] and S-Box building sb[] */
+        $this->bctx = array(
+            'p'  => array(),
+            'sb' => array(
+                $this->sbox0,
+                $this->sbox1,
+                $this->sbox2,
+                $this->sbox3
+            )
+        );
+
+        // unpack binary string in unsigned chars
+        $key  = array_values(unpack('C*', $this->key));
+        $keyl = count($key);
+        for ($j = 0, $i = 0; $i < 18; ++$i) {
+            // xor P1 with the first 32-bits of the key, xor P2 with the second 32-bits ...
+            for ($data = 0, $k = 0; $k < 4; ++$k) {
+                $data = ($data << 8) | $key[$j];
+                if (++$j >= $keyl) {
+                    $j = 0;
+                }
+            }
+            $this->bctx['p'][] = $this->parray[$i] ^ $data;
+        }
+
+        // encrypt the zero-string, replace P1 and P2 with the encrypted data,
+        // encrypt P3 and P4 with the new P1 and P2, do it with all P-array and subkeys
+        $data = "\0\0\0\0\0\0\0\0";
+        for ($i = 0; $i < 18; $i += 2) {
+            list($l, $r) = array_values(unpack('N*', $data = $this->_encryptBlock($data)));
+            $this->bctx['p'][$i    ] = $l;
+            $this->bctx['p'][$i + 1] = $r;
+        }
+        for ($i = 0; $i < 4; ++$i) {
+            for ($j = 0; $j < 256; $j += 2) {
+                list($l, $r) = array_values(unpack('N*', $data = $this->_encryptBlock($data)));
+                $this->bctx['sb'][$i][$j    ] = $l;
+                $this->bctx['sb'][$i][$j + 1] = $r;
+            }
+        }
+    }
+
+    /**
+     * Encrypts a block
+     *
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    function _encryptBlock($in)
+    {
+        $p = $this->bctx["p"];
+        // extract($this->bctx["sb"], EXTR_PREFIX_ALL, "sb"); // slower
+        $sb_0 = $this->bctx["sb"][0];
+        $sb_1 = $this->bctx["sb"][1];
+        $sb_2 = $this->bctx["sb"][2];
+        $sb_3 = $this->bctx["sb"][3];
+
+        $in = unpack("N*", $in);
+        $l = $in[1];
+        $r = $in[2];
+
+        for ($i = 0; $i < 16; $i+= 2) {
+            $l^= $p[$i];
+            $r^= $this->safe_intval(($this->safe_intval($sb_0[$l >> 24 & 0xff]  + $sb_1[$l >> 16 & 0xff]) ^
+                  $sb_2[$l >>  8 & 0xff]) +
+                  $sb_3[$l       & 0xff]);
+
+            $r^= $p[$i + 1];
+            $l^= $this->safe_intval(($this->safe_intval($sb_0[$r >> 24 & 0xff]  + $sb_1[$r >> 16 & 0xff]) ^
+                  $sb_2[$r >>  8 & 0xff]) +
+                  $sb_3[$r       & 0xff]);
+        }
+        return pack("N*", $r ^ $p[17], $l ^ $p[16]);
+    }
+
+    /**
+     * Decrypts a block
+     *
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    function _decryptBlock($in)
+    {
+        $p = $this->bctx["p"];
+        $sb_0 = $this->bctx["sb"][0];
+        $sb_1 = $this->bctx["sb"][1];
+        $sb_2 = $this->bctx["sb"][2];
+        $sb_3 = $this->bctx["sb"][3];
+
+        $in = unpack("N*", $in);
+        $l = $in[1];
+        $r = $in[2];
+
+        for ($i = 17; $i > 2; $i-= 2) {
+            $l^= $p[$i];
+            $r^= $this->safe_intval(($this->safe_intval($sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff]) ^
+                  $sb_2[$l >>  8 & 0xff]) +
+                  $sb_3[$l       & 0xff]);
+
+            $r^= $p[$i - 1];
+            $l^= $this->safe_intval(($this->safe_intval($sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff]) ^
+                  $sb_2[$r >>  8 & 0xff]) +
+                  $sb_3[$r       & 0xff]);
+        }
+        return pack("N*", $r ^ $p[0], $l ^ $p[1]);
+    }
+
+    /**
+     * Setup the performance-optimized function for de/encrypt()
+     *
+     * @see \phpseclib\Crypt\Base::_setupInlineCrypt()
+     * @access private
+     */
+    function _setupInlineCrypt()
+    {
+        $lambda_functions =& self::_getLambdaFunctions();
+
+        // We create max. 10 hi-optimized code for memory reason. Means: For each $key one ultra fast inline-crypt function.
+        // (Currently, for Blowfish, one generated $lambda_function cost on php5.5@32bit ~100kb unfreeable mem and ~180kb on php5.5@64bit)
+        // After that, we'll still create very fast optimized code but not the hi-ultimative code, for each $mode one.
+        $gen_hi_opt_code = (bool)(count($lambda_functions) < 10);
+
+        // Generation of a unique hash for our generated code
+        $code_hash = "Crypt_Blowfish, {$this->mode}";
+        if ($gen_hi_opt_code) {
+            $code_hash = str_pad($code_hash, 32) . $this->_hashInlineCryptFunction($this->key);
+        }
+
+        $safeint = $this->safe_intval_inline();
+
+        if (!isset($lambda_functions[$code_hash])) {
+            switch (true) {
+                case $gen_hi_opt_code:
+                    $p = $this->bctx['p'];
+                    $init_crypt = '
+                        static $sb_0, $sb_1, $sb_2, $sb_3;
+                        if (!$sb_0) {
+                            $sb_0 = $self->bctx["sb"][0];
+                            $sb_1 = $self->bctx["sb"][1];
+                            $sb_2 = $self->bctx["sb"][2];
+                            $sb_3 = $self->bctx["sb"][3];
+                        }
+                    ';
+                    break;
+                default:
+                    $p   = array();
+                    for ($i = 0; $i < 18; ++$i) {
+                        $p[] = '$p_' . $i;
+                    }
+                    $init_crypt = '
+                        list($sb_0, $sb_1, $sb_2, $sb_3) = $self->bctx["sb"];
+                        list(' . implode(',', $p) . ') = $self->bctx["p"];
+
+                    ';
+            }
+
+            // Generating encrypt code:
+            $encrypt_block = '
+                $in = unpack("N*", $in);
+                $l = $in[1];
+                $r = $in[2];
+            ';
+            for ($i = 0; $i < 16; $i+= 2) {
+                $encrypt_block.= '
+                    $l^= ' . $p[$i] . ';
+                    $r^= ' . sprintf($safeint, '(' . sprintf($safeint, '$sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff]') . ' ^
+                          $sb_2[$l >>  8 & 0xff]) +
+                          $sb_3[$l       & 0xff]') . ';
+
+                    $r^= ' . $p[$i + 1] . ';
+                    $l^= ' . sprintf($safeint, '(' . sprintf($safeint, '$sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff]') . '  ^
+                          $sb_2[$r >>  8 & 0xff]) +
+                          $sb_3[$r       & 0xff]') . ';
+                ';
+            }
+            $encrypt_block.= '
+                $in = pack("N*",
+                    $r ^ ' . $p[17] . ',
+                    $l ^ ' . $p[16] . '
+                );
+            ';
+
+            // Generating decrypt code:
+            $decrypt_block = '
+                $in = unpack("N*", $in);
+                $l = $in[1];
+                $r = $in[2];
+            ';
+
+            for ($i = 17; $i > 2; $i-= 2) {
+                $decrypt_block.= '
+                    $l^= ' . $p[$i] . ';
+                    $r^= ' . sprintf($safeint, '(' . sprintf($safeint, '$sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff]') . ' ^
+                          $sb_2[$l >>  8 & 0xff]) +
+                          $sb_3[$l       & 0xff]') . ';
+
+                    $r^= ' . $p[$i - 1] . ';
+                    $l^= ' . sprintf($safeint, '(' . sprintf($safeint, '$sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff]') . ' ^
+                          $sb_2[$r >>  8 & 0xff]) +
+                          $sb_3[$r       & 0xff]') . ';
+                ';
+            }
+
+            $decrypt_block.= '
+                $in = pack("N*",
+                    $r ^ ' . $p[0] . ',
+                    $l ^ ' . $p[1] . '
+                );
+            ';
+
+            $lambda_functions[$code_hash] = $this->_createInlineCryptFunction(
+                array(
+                   'init_crypt'    => $init_crypt,
+                   'init_encrypt'  => '',
+                   'init_decrypt'  => '',
+                   'encrypt_block' => $encrypt_block,
+                   'decrypt_block' => $decrypt_block
+                )
+            );
+        }
+        $this->inline_crypt = $lambda_functions[$code_hash];
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/DES.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/DES.php
new file mode 100644
index 0000000..9a8225f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/DES.php
@@ -0,0 +1,1443 @@
+<?php
+
+/**
+ * Pure-PHP implementation of DES.
+ *
+ * Uses mcrypt, if available, and an internal implementation, otherwise.
+ *
+ * PHP version 5
+ *
+ * Useful resources are as follows:
+ *
+ *  - {@link http://en.wikipedia.org/wiki/DES_supplementary_material Wikipedia: DES supplementary material}
+ *  - {@link http://www.itl.nist.gov/fipspubs/fip46-2.htm FIPS 46-2 - (DES), Data Encryption Standard}
+ *  - {@link http://www.cs.eku.edu/faculty/styer/460/Encrypt/JS-DES.html JavaScript DES Example}
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $des = new \phpseclib\Crypt\DES();
+ *
+ *    $des->setKey('abcdefgh');
+ *
+ *    $size = 10 * 1024;
+ *    $plaintext = '';
+ *    for ($i = 0; $i < $size; $i++) {
+ *        $plaintext.= 'a';
+ *    }
+ *
+ *    echo $des->decrypt($des->encrypt($plaintext));
+ * ?>
+ * </code>
+ *
+ * @category  Crypt
+ * @package   DES
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2007 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Pure-PHP implementation of DES.
+ *
+ * @package DES
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @access  public
+ */
+class DES extends Base
+{
+    /**#@+
+     * @access private
+     * @see \phpseclib\Crypt\DES::_setupKey()
+     * @see \phpseclib\Crypt\DES::_processBlock()
+     */
+    /**
+     * Contains $keys[self::ENCRYPT]
+     */
+    const ENCRYPT = 0;
+    /**
+     * Contains $keys[self::DECRYPT]
+     */
+    const DECRYPT = 1;
+    /**#@-*/
+
+    /**
+     * Block Length of the cipher
+     *
+     * @see \phpseclib\Crypt\Base::block_size
+     * @var int
+     * @access private
+     */
+    var $block_size = 8;
+
+    /**
+     * Key Length (in bytes)
+     *
+     * @see \phpseclib\Crypt\Base::setKeyLength()
+     * @var int
+     * @access private
+     */
+    var $key_length = 8;
+
+    /**
+     * The mcrypt specific name of the cipher
+     *
+     * @see \phpseclib\Crypt\Base::cipher_name_mcrypt
+     * @var string
+     * @access private
+     */
+    var $cipher_name_mcrypt = 'des';
+
+    /**
+     * The OpenSSL names of the cipher / modes
+     *
+     * @see \phpseclib\Crypt\Base::openssl_mode_names
+     * @var array
+     * @access private
+     */
+    var $openssl_mode_names = array(
+        self::MODE_ECB => 'des-ecb',
+        self::MODE_CBC => 'des-cbc',
+        self::MODE_CFB => 'des-cfb',
+        self::MODE_OFB => 'des-ofb'
+        // self::MODE_CTR is undefined for DES
+    );
+
+    /**
+     * Optimizing value while CFB-encrypting
+     *
+     * @see \phpseclib\Crypt\Base::cfb_init_len
+     * @var int
+     * @access private
+     */
+    var $cfb_init_len = 500;
+
+    /**
+     * Switch for DES/3DES encryption
+     *
+     * Used only if $engine == self::ENGINE_INTERNAL
+     *
+     * @see self::_setupKey()
+     * @see self::_processBlock()
+     * @var int
+     * @access private
+     */
+    var $des_rounds = 1;
+
+    /**
+     * max possible size of $key
+     *
+     * @see self::setKey()
+     * @var string
+     * @access private
+     */
+    var $key_length_max = 8;
+
+    /**
+     * The Key Schedule
+     *
+     * @see self::_setupKey()
+     * @var array
+     * @access private
+     */
+    var $keys;
+
+    /**
+     * Shuffle table.
+     *
+     * For each byte value index, the entry holds an 8-byte string
+     * with each byte containing all bits in the same state as the
+     * corresponding bit in the index value.
+     *
+     * @see self::_processBlock()
+     * @see self::_setupKey()
+     * @var array
+     * @access private
+     */
+    var $shuffle = array(
+        "\x00\x00\x00\x00\x00\x00\x00\x00", "\x00\x00\x00\x00\x00\x00\x00\xFF",
+        "\x00\x00\x00\x00\x00\x00\xFF\x00", "\x00\x00\x00\x00\x00\x00\xFF\xFF",
+        "\x00\x00\x00\x00\x00\xFF\x00\x00", "\x00\x00\x00\x00\x00\xFF\x00\xFF",
+        "\x00\x00\x00\x00\x00\xFF\xFF\x00", "\x00\x00\x00\x00\x00\xFF\xFF\xFF",
+        "\x00\x00\x00\x00\xFF\x00\x00\x00", "\x00\x00\x00\x00\xFF\x00\x00\xFF",
+        "\x00\x00\x00\x00\xFF\x00\xFF\x00", "\x00\x00\x00\x00\xFF\x00\xFF\xFF",
+        "\x00\x00\x00\x00\xFF\xFF\x00\x00", "\x00\x00\x00\x00\xFF\xFF\x00\xFF",
+        "\x00\x00\x00\x00\xFF\xFF\xFF\x00", "\x00\x00\x00\x00\xFF\xFF\xFF\xFF",
+        "\x00\x00\x00\xFF\x00\x00\x00\x00", "\x00\x00\x00\xFF\x00\x00\x00\xFF",
+        "\x00\x00\x00\xFF\x00\x00\xFF\x00", "\x00\x00\x00\xFF\x00\x00\xFF\xFF",
+        "\x00\x00\x00\xFF\x00\xFF\x00\x00", "\x00\x00\x00\xFF\x00\xFF\x00\xFF",
+        "\x00\x00\x00\xFF\x00\xFF\xFF\x00", "\x00\x00\x00\xFF\x00\xFF\xFF\xFF",
+        "\x00\x00\x00\xFF\xFF\x00\x00\x00", "\x00\x00\x00\xFF\xFF\x00\x00\xFF",
+        "\x00\x00\x00\xFF\xFF\x00\xFF\x00", "\x00\x00\x00\xFF\xFF\x00\xFF\xFF",
+        "\x00\x00\x00\xFF\xFF\xFF\x00\x00", "\x00\x00\x00\xFF\xFF\xFF\x00\xFF",
+        "\x00\x00\x00\xFF\xFF\xFF\xFF\x00", "\x00\x00\x00\xFF\xFF\xFF\xFF\xFF",
+        "\x00\x00\xFF\x00\x00\x00\x00\x00", "\x00\x00\xFF\x00\x00\x00\x00\xFF",
+        "\x00\x00\xFF\x00\x00\x00\xFF\x00", "\x00\x00\xFF\x00\x00\x00\xFF\xFF",
+        "\x00\x00\xFF\x00\x00\xFF\x00\x00", "\x00\x00\xFF\x00\x00\xFF\x00\xFF",
+        "\x00\x00\xFF\x00\x00\xFF\xFF\x00", "\x00\x00\xFF\x00\x00\xFF\xFF\xFF",
+        "\x00\x00\xFF\x00\xFF\x00\x00\x00", "\x00\x00\xFF\x00\xFF\x00\x00\xFF",
+        "\x00\x00\xFF\x00\xFF\x00\xFF\x00", "\x00\x00\xFF\x00\xFF\x00\xFF\xFF",
+        "\x00\x00\xFF\x00\xFF\xFF\x00\x00", "\x00\x00\xFF\x00\xFF\xFF\x00\xFF",
+        "\x00\x00\xFF\x00\xFF\xFF\xFF\x00", "\x00\x00\xFF\x00\xFF\xFF\xFF\xFF",
+        "\x00\x00\xFF\xFF\x00\x00\x00\x00", "\x00\x00\xFF\xFF\x00\x00\x00\xFF",
+        "\x00\x00\xFF\xFF\x00\x00\xFF\x00", "\x00\x00\xFF\xFF\x00\x00\xFF\xFF",
+        "\x00\x00\xFF\xFF\x00\xFF\x00\x00", "\x00\x00\xFF\xFF\x00\xFF\x00\xFF",
+        "\x00\x00\xFF\xFF\x00\xFF\xFF\x00", "\x00\x00\xFF\xFF\x00\xFF\xFF\xFF",
+        "\x00\x00\xFF\xFF\xFF\x00\x00\x00", "\x00\x00\xFF\xFF\xFF\x00\x00\xFF",
+        "\x00\x00\xFF\xFF\xFF\x00\xFF\x00", "\x00\x00\xFF\xFF\xFF\x00\xFF\xFF",
+        "\x00\x00\xFF\xFF\xFF\xFF\x00\x00", "\x00\x00\xFF\xFF\xFF\xFF\x00\xFF",
+        "\x00\x00\xFF\xFF\xFF\xFF\xFF\x00", "\x00\x00\xFF\xFF\xFF\xFF\xFF\xFF",
+        "\x00\xFF\x00\x00\x00\x00\x00\x00", "\x00\xFF\x00\x00\x00\x00\x00\xFF",
+        "\x00\xFF\x00\x00\x00\x00\xFF\x00", "\x00\xFF\x00\x00\x00\x00\xFF\xFF",
+        "\x00\xFF\x00\x00\x00\xFF\x00\x00", "\x00\xFF\x00\x00\x00\xFF\x00\xFF",
+        "\x00\xFF\x00\x00\x00\xFF\xFF\x00", "\x00\xFF\x00\x00\x00\xFF\xFF\xFF",
+        "\x00\xFF\x00\x00\xFF\x00\x00\x00", "\x00\xFF\x00\x00\xFF\x00\x00\xFF",
+        "\x00\xFF\x00\x00\xFF\x00\xFF\x00", "\x00\xFF\x00\x00\xFF\x00\xFF\xFF",
+        "\x00\xFF\x00\x00\xFF\xFF\x00\x00", "\x00\xFF\x00\x00\xFF\xFF\x00\xFF",
+        "\x00\xFF\x00\x00\xFF\xFF\xFF\x00", "\x00\xFF\x00\x00\xFF\xFF\xFF\xFF",
+        "\x00\xFF\x00\xFF\x00\x00\x00\x00", "\x00\xFF\x00\xFF\x00\x00\x00\xFF",
+        "\x00\xFF\x00\xFF\x00\x00\xFF\x00", "\x00\xFF\x00\xFF\x00\x00\xFF\xFF",
+        "\x00\xFF\x00\xFF\x00\xFF\x00\x00", "\x00\xFF\x00\xFF\x00\xFF\x00\xFF",
+        "\x00\xFF\x00\xFF\x00\xFF\xFF\x00", "\x00\xFF\x00\xFF\x00\xFF\xFF\xFF",
+        "\x00\xFF\x00\xFF\xFF\x00\x00\x00", "\x00\xFF\x00\xFF\xFF\x00\x00\xFF",
+        "\x00\xFF\x00\xFF\xFF\x00\xFF\x00", "\x00\xFF\x00\xFF\xFF\x00\xFF\xFF",
+        "\x00\xFF\x00\xFF\xFF\xFF\x00\x00", "\x00\xFF\x00\xFF\xFF\xFF\x00\xFF",
+        "\x00\xFF\x00\xFF\xFF\xFF\xFF\x00", "\x00\xFF\x00\xFF\xFF\xFF\xFF\xFF",
+        "\x00\xFF\xFF\x00\x00\x00\x00\x00", "\x00\xFF\xFF\x00\x00\x00\x00\xFF",
+        "\x00\xFF\xFF\x00\x00\x00\xFF\x00", "\x00\xFF\xFF\x00\x00\x00\xFF\xFF",
+        "\x00\xFF\xFF\x00\x00\xFF\x00\x00", "\x00\xFF\xFF\x00\x00\xFF\x00\xFF",
+        "\x00\xFF\xFF\x00\x00\xFF\xFF\x00", "\x00\xFF\xFF\x00\x00\xFF\xFF\xFF",
+        "\x00\xFF\xFF\x00\xFF\x00\x00\x00", "\x00\xFF\xFF\x00\xFF\x00\x00\xFF",
+        "\x00\xFF\xFF\x00\xFF\x00\xFF\x00", "\x00\xFF\xFF\x00\xFF\x00\xFF\xFF",
+        "\x00\xFF\xFF\x00\xFF\xFF\x00\x00", "\x00\xFF\xFF\x00\xFF\xFF\x00\xFF",
+        "\x00\xFF\xFF\x00\xFF\xFF\xFF\x00", "\x00\xFF\xFF\x00\xFF\xFF\xFF\xFF",
+        "\x00\xFF\xFF\xFF\x00\x00\x00\x00", "\x00\xFF\xFF\xFF\x00\x00\x00\xFF",
+        "\x00\xFF\xFF\xFF\x00\x00\xFF\x00", "\x00\xFF\xFF\xFF\x00\x00\xFF\xFF",
+        "\x00\xFF\xFF\xFF\x00\xFF\x00\x00", "\x00\xFF\xFF\xFF\x00\xFF\x00\xFF",
+        "\x00\xFF\xFF\xFF\x00\xFF\xFF\x00", "\x00\xFF\xFF\xFF\x00\xFF\xFF\xFF",
+        "\x00\xFF\xFF\xFF\xFF\x00\x00\x00", "\x00\xFF\xFF\xFF\xFF\x00\x00\xFF",
+        "\x00\xFF\xFF\xFF\xFF\x00\xFF\x00", "\x00\xFF\xFF\xFF\xFF\x00\xFF\xFF",
+        "\x00\xFF\xFF\xFF\xFF\xFF\x00\x00", "\x00\xFF\xFF\xFF\xFF\xFF\x00\xFF",
+        "\x00\xFF\xFF\xFF\xFF\xFF\xFF\x00", "\x00\xFF\xFF\xFF\xFF\xFF\xFF\xFF",
+        "\xFF\x00\x00\x00\x00\x00\x00\x00", "\xFF\x00\x00\x00\x00\x00\x00\xFF",
+        "\xFF\x00\x00\x00\x00\x00\xFF\x00", "\xFF\x00\x00\x00\x00\x00\xFF\xFF",
+        "\xFF\x00\x00\x00\x00\xFF\x00\x00", "\xFF\x00\x00\x00\x00\xFF\x00\xFF",
+        "\xFF\x00\x00\x00\x00\xFF\xFF\x00", "\xFF\x00\x00\x00\x00\xFF\xFF\xFF",
+        "\xFF\x00\x00\x00\xFF\x00\x00\x00", "\xFF\x00\x00\x00\xFF\x00\x00\xFF",
+        "\xFF\x00\x00\x00\xFF\x00\xFF\x00", "\xFF\x00\x00\x00\xFF\x00\xFF\xFF",
+        "\xFF\x00\x00\x00\xFF\xFF\x00\x00", "\xFF\x00\x00\x00\xFF\xFF\x00\xFF",
+        "\xFF\x00\x00\x00\xFF\xFF\xFF\x00", "\xFF\x00\x00\x00\xFF\xFF\xFF\xFF",
+        "\xFF\x00\x00\xFF\x00\x00\x00\x00", "\xFF\x00\x00\xFF\x00\x00\x00\xFF",
+        "\xFF\x00\x00\xFF\x00\x00\xFF\x00", "\xFF\x00\x00\xFF\x00\x00\xFF\xFF",
+        "\xFF\x00\x00\xFF\x00\xFF\x00\x00", "\xFF\x00\x00\xFF\x00\xFF\x00\xFF",
+        "\xFF\x00\x00\xFF\x00\xFF\xFF\x00", "\xFF\x00\x00\xFF\x00\xFF\xFF\xFF",
+        "\xFF\x00\x00\xFF\xFF\x00\x00\x00", "\xFF\x00\x00\xFF\xFF\x00\x00\xFF",
+        "\xFF\x00\x00\xFF\xFF\x00\xFF\x00", "\xFF\x00\x00\xFF\xFF\x00\xFF\xFF",
+        "\xFF\x00\x00\xFF\xFF\xFF\x00\x00", "\xFF\x00\x00\xFF\xFF\xFF\x00\xFF",
+        "\xFF\x00\x00\xFF\xFF\xFF\xFF\x00", "\xFF\x00\x00\xFF\xFF\xFF\xFF\xFF",
+        "\xFF\x00\xFF\x00\x00\x00\x00\x00", "\xFF\x00\xFF\x00\x00\x00\x00\xFF",
+        "\xFF\x00\xFF\x00\x00\x00\xFF\x00", "\xFF\x00\xFF\x00\x00\x00\xFF\xFF",
+        "\xFF\x00\xFF\x00\x00\xFF\x00\x00", "\xFF\x00\xFF\x00\x00\xFF\x00\xFF",
+        "\xFF\x00\xFF\x00\x00\xFF\xFF\x00", "\xFF\x00\xFF\x00\x00\xFF\xFF\xFF",
+        "\xFF\x00\xFF\x00\xFF\x00\x00\x00", "\xFF\x00\xFF\x00\xFF\x00\x00\xFF",
+        "\xFF\x00\xFF\x00\xFF\x00\xFF\x00", "\xFF\x00\xFF\x00\xFF\x00\xFF\xFF",
+        "\xFF\x00\xFF\x00\xFF\xFF\x00\x00", "\xFF\x00\xFF\x00\xFF\xFF\x00\xFF",
+        "\xFF\x00\xFF\x00\xFF\xFF\xFF\x00", "\xFF\x00\xFF\x00\xFF\xFF\xFF\xFF",
+        "\xFF\x00\xFF\xFF\x00\x00\x00\x00", "\xFF\x00\xFF\xFF\x00\x00\x00\xFF",
+        "\xFF\x00\xFF\xFF\x00\x00\xFF\x00", "\xFF\x00\xFF\xFF\x00\x00\xFF\xFF",
+        "\xFF\x00\xFF\xFF\x00\xFF\x00\x00", "\xFF\x00\xFF\xFF\x00\xFF\x00\xFF",
+        "\xFF\x00\xFF\xFF\x00\xFF\xFF\x00", "\xFF\x00\xFF\xFF\x00\xFF\xFF\xFF",
+        "\xFF\x00\xFF\xFF\xFF\x00\x00\x00", "\xFF\x00\xFF\xFF\xFF\x00\x00\xFF",
+        "\xFF\x00\xFF\xFF\xFF\x00\xFF\x00", "\xFF\x00\xFF\xFF\xFF\x00\xFF\xFF",
+        "\xFF\x00\xFF\xFF\xFF\xFF\x00\x00", "\xFF\x00\xFF\xFF\xFF\xFF\x00\xFF",
+        "\xFF\x00\xFF\xFF\xFF\xFF\xFF\x00", "\xFF\x00\xFF\xFF\xFF\xFF\xFF\xFF",
+        "\xFF\xFF\x00\x00\x00\x00\x00\x00", "\xFF\xFF\x00\x00\x00\x00\x00\xFF",
+        "\xFF\xFF\x00\x00\x00\x00\xFF\x00", "\xFF\xFF\x00\x00\x00\x00\xFF\xFF",
+        "\xFF\xFF\x00\x00\x00\xFF\x00\x00", "\xFF\xFF\x00\x00\x00\xFF\x00\xFF",
+        "\xFF\xFF\x00\x00\x00\xFF\xFF\x00", "\xFF\xFF\x00\x00\x00\xFF\xFF\xFF",
+        "\xFF\xFF\x00\x00\xFF\x00\x00\x00", "\xFF\xFF\x00\x00\xFF\x00\x00\xFF",
+        "\xFF\xFF\x00\x00\xFF\x00\xFF\x00", "\xFF\xFF\x00\x00\xFF\x00\xFF\xFF",
+        "\xFF\xFF\x00\x00\xFF\xFF\x00\x00", "\xFF\xFF\x00\x00\xFF\xFF\x00\xFF",
+        "\xFF\xFF\x00\x00\xFF\xFF\xFF\x00", "\xFF\xFF\x00\x00\xFF\xFF\xFF\xFF",
+        "\xFF\xFF\x00\xFF\x00\x00\x00\x00", "\xFF\xFF\x00\xFF\x00\x00\x00\xFF",
+        "\xFF\xFF\x00\xFF\x00\x00\xFF\x00", "\xFF\xFF\x00\xFF\x00\x00\xFF\xFF",
+        "\xFF\xFF\x00\xFF\x00\xFF\x00\x00", "\xFF\xFF\x00\xFF\x00\xFF\x00\xFF",
+        "\xFF\xFF\x00\xFF\x00\xFF\xFF\x00", "\xFF\xFF\x00\xFF\x00\xFF\xFF\xFF",
+        "\xFF\xFF\x00\xFF\xFF\x00\x00\x00", "\xFF\xFF\x00\xFF\xFF\x00\x00\xFF",
+        "\xFF\xFF\x00\xFF\xFF\x00\xFF\x00", "\xFF\xFF\x00\xFF\xFF\x00\xFF\xFF",
+        "\xFF\xFF\x00\xFF\xFF\xFF\x00\x00", "\xFF\xFF\x00\xFF\xFF\xFF\x00\xFF",
+        "\xFF\xFF\x00\xFF\xFF\xFF\xFF\x00", "\xFF\xFF\x00\xFF\xFF\xFF\xFF\xFF",
+        "\xFF\xFF\xFF\x00\x00\x00\x00\x00", "\xFF\xFF\xFF\x00\x00\x00\x00\xFF",
+        "\xFF\xFF\xFF\x00\x00\x00\xFF\x00", "\xFF\xFF\xFF\x00\x00\x00\xFF\xFF",
+        "\xFF\xFF\xFF\x00\x00\xFF\x00\x00", "\xFF\xFF\xFF\x00\x00\xFF\x00\xFF",
+        "\xFF\xFF\xFF\x00\x00\xFF\xFF\x00", "\xFF\xFF\xFF\x00\x00\xFF\xFF\xFF",
+        "\xFF\xFF\xFF\x00\xFF\x00\x00\x00", "\xFF\xFF\xFF\x00\xFF\x00\x00\xFF",
+        "\xFF\xFF\xFF\x00\xFF\x00\xFF\x00", "\xFF\xFF\xFF\x00\xFF\x00\xFF\xFF",
+        "\xFF\xFF\xFF\x00\xFF\xFF\x00\x00", "\xFF\xFF\xFF\x00\xFF\xFF\x00\xFF",
+        "\xFF\xFF\xFF\x00\xFF\xFF\xFF\x00", "\xFF\xFF\xFF\x00\xFF\xFF\xFF\xFF",
+        "\xFF\xFF\xFF\xFF\x00\x00\x00\x00", "\xFF\xFF\xFF\xFF\x00\x00\x00\xFF",
+        "\xFF\xFF\xFF\xFF\x00\x00\xFF\x00", "\xFF\xFF\xFF\xFF\x00\x00\xFF\xFF",
+        "\xFF\xFF\xFF\xFF\x00\xFF\x00\x00", "\xFF\xFF\xFF\xFF\x00\xFF\x00\xFF",
+        "\xFF\xFF\xFF\xFF\x00\xFF\xFF\x00", "\xFF\xFF\xFF\xFF\x00\xFF\xFF\xFF",
+        "\xFF\xFF\xFF\xFF\xFF\x00\x00\x00", "\xFF\xFF\xFF\xFF\xFF\x00\x00\xFF",
+        "\xFF\xFF\xFF\xFF\xFF\x00\xFF\x00", "\xFF\xFF\xFF\xFF\xFF\x00\xFF\xFF",
+        "\xFF\xFF\xFF\xFF\xFF\xFF\x00\x00", "\xFF\xFF\xFF\xFF\xFF\xFF\x00\xFF",
+        "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\x00", "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"
+    );
+
+    /**
+     * IP mapping helper table.
+     *
+     * Indexing this table with each source byte performs the initial bit permutation.
+     *
+     * @var array
+     * @access private
+     */
+    var $ipmap = array(
+        0x00, 0x10, 0x01, 0x11, 0x20, 0x30, 0x21, 0x31,
+        0x02, 0x12, 0x03, 0x13, 0x22, 0x32, 0x23, 0x33,
+        0x40, 0x50, 0x41, 0x51, 0x60, 0x70, 0x61, 0x71,
+        0x42, 0x52, 0x43, 0x53, 0x62, 0x72, 0x63, 0x73,
+        0x04, 0x14, 0x05, 0x15, 0x24, 0x34, 0x25, 0x35,
+        0x06, 0x16, 0x07, 0x17, 0x26, 0x36, 0x27, 0x37,
+        0x44, 0x54, 0x45, 0x55, 0x64, 0x74, 0x65, 0x75,
+        0x46, 0x56, 0x47, 0x57, 0x66, 0x76, 0x67, 0x77,
+        0x80, 0x90, 0x81, 0x91, 0xA0, 0xB0, 0xA1, 0xB1,
+        0x82, 0x92, 0x83, 0x93, 0xA2, 0xB2, 0xA3, 0xB3,
+        0xC0, 0xD0, 0xC1, 0xD1, 0xE0, 0xF0, 0xE1, 0xF1,
+        0xC2, 0xD2, 0xC3, 0xD3, 0xE2, 0xF2, 0xE3, 0xF3,
+        0x84, 0x94, 0x85, 0x95, 0xA4, 0xB4, 0xA5, 0xB5,
+        0x86, 0x96, 0x87, 0x97, 0xA6, 0xB6, 0xA7, 0xB7,
+        0xC4, 0xD4, 0xC5, 0xD5, 0xE4, 0xF4, 0xE5, 0xF5,
+        0xC6, 0xD6, 0xC7, 0xD7, 0xE6, 0xF6, 0xE7, 0xF7,
+        0x08, 0x18, 0x09, 0x19, 0x28, 0x38, 0x29, 0x39,
+        0x0A, 0x1A, 0x0B, 0x1B, 0x2A, 0x3A, 0x2B, 0x3B,
+        0x48, 0x58, 0x49, 0x59, 0x68, 0x78, 0x69, 0x79,
+        0x4A, 0x5A, 0x4B, 0x5B, 0x6A, 0x7A, 0x6B, 0x7B,
+        0x0C, 0x1C, 0x0D, 0x1D, 0x2C, 0x3C, 0x2D, 0x3D,
+        0x0E, 0x1E, 0x0F, 0x1F, 0x2E, 0x3E, 0x2F, 0x3F,
+        0x4C, 0x5C, 0x4D, 0x5D, 0x6C, 0x7C, 0x6D, 0x7D,
+        0x4E, 0x5E, 0x4F, 0x5F, 0x6E, 0x7E, 0x6F, 0x7F,
+        0x88, 0x98, 0x89, 0x99, 0xA8, 0xB8, 0xA9, 0xB9,
+        0x8A, 0x9A, 0x8B, 0x9B, 0xAA, 0xBA, 0xAB, 0xBB,
+        0xC8, 0xD8, 0xC9, 0xD9, 0xE8, 0xF8, 0xE9, 0xF9,
+        0xCA, 0xDA, 0xCB, 0xDB, 0xEA, 0xFA, 0xEB, 0xFB,
+        0x8C, 0x9C, 0x8D, 0x9D, 0xAC, 0xBC, 0xAD, 0xBD,
+        0x8E, 0x9E, 0x8F, 0x9F, 0xAE, 0xBE, 0xAF, 0xBF,
+        0xCC, 0xDC, 0xCD, 0xDD, 0xEC, 0xFC, 0xED, 0xFD,
+        0xCE, 0xDE, 0xCF, 0xDF, 0xEE, 0xFE, 0xEF, 0xFF
+    );
+
+    /**
+     * Inverse IP mapping helper table.
+     * Indexing this table with a byte value reverses the bit order.
+     *
+     * @var array
+     * @access private
+     */
+    var $invipmap = array(
+        0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0,
+        0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
+        0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8,
+        0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8,
+        0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4,
+        0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,
+        0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC,
+        0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC,
+        0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2,
+        0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2,
+        0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA,
+        0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA,
+        0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6,
+        0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6,
+        0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE,
+        0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE,
+        0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1,
+        0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1,
+        0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9,
+        0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9,
+        0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5,
+        0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5,
+        0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED,
+        0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD,
+        0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3,
+        0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3,
+        0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB,
+        0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB,
+        0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7,
+        0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7,
+        0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF,
+        0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF
+    );
+
+    /**
+     * Pre-permuted S-box1
+     *
+     * Each box ($sbox1-$sbox8) has been vectorized, then each value pre-permuted using the
+     * P table: concatenation can then be replaced by exclusive ORs.
+     *
+     * @var array
+     * @access private
+     */
+    var $sbox1 = array(
+        0x00808200, 0x00000000, 0x00008000, 0x00808202,
+        0x00808002, 0x00008202, 0x00000002, 0x00008000,
+        0x00000200, 0x00808200, 0x00808202, 0x00000200,
+        0x00800202, 0x00808002, 0x00800000, 0x00000002,
+        0x00000202, 0x00800200, 0x00800200, 0x00008200,
+        0x00008200, 0x00808000, 0x00808000, 0x00800202,
+        0x00008002, 0x00800002, 0x00800002, 0x00008002,
+        0x00000000, 0x00000202, 0x00008202, 0x00800000,
+        0x00008000, 0x00808202, 0x00000002, 0x00808000,
+        0x00808200, 0x00800000, 0x00800000, 0x00000200,
+        0x00808002, 0x00008000, 0x00008200, 0x00800002,
+        0x00000200, 0x00000002, 0x00800202, 0x00008202,
+        0x00808202, 0x00008002, 0x00808000, 0x00800202,
+        0x00800002, 0x00000202, 0x00008202, 0x00808200,
+        0x00000202, 0x00800200, 0x00800200, 0x00000000,
+        0x00008002, 0x00008200, 0x00000000, 0x00808002
+    );
+
+    /**
+     * Pre-permuted S-box2
+     *
+     * @var array
+     * @access private
+     */
+    var $sbox2 = array(
+        0x40084010, 0x40004000, 0x00004000, 0x00084010,
+        0x00080000, 0x00000010, 0x40080010, 0x40004010,
+        0x40000010, 0x40084010, 0x40084000, 0x40000000,
+        0x40004000, 0x00080000, 0x00000010, 0x40080010,
+        0x00084000, 0x00080010, 0x40004010, 0x00000000,
+        0x40000000, 0x00004000, 0x00084010, 0x40080000,
+        0x00080010, 0x40000010, 0x00000000, 0x00084000,
+        0x00004010, 0x40084000, 0x40080000, 0x00004010,
+        0x00000000, 0x00084010, 0x40080010, 0x00080000,
+        0x40004010, 0x40080000, 0x40084000, 0x00004000,
+        0x40080000, 0x40004000, 0x00000010, 0x40084010,
+        0x00084010, 0x00000010, 0x00004000, 0x40000000,
+        0x00004010, 0x40084000, 0x00080000, 0x40000010,
+        0x00080010, 0x40004010, 0x40000010, 0x00080010,
+        0x00084000, 0x00000000, 0x40004000, 0x00004010,
+        0x40000000, 0x40080010, 0x40084010, 0x00084000
+    );
+
+    /**
+     * Pre-permuted S-box3
+     *
+     * @var array
+     * @access private
+     */
+    var $sbox3 = array(
+        0x00000104, 0x04010100, 0x00000000, 0x04010004,
+        0x04000100, 0x00000000, 0x00010104, 0x04000100,
+        0x00010004, 0x04000004, 0x04000004, 0x00010000,
+        0x04010104, 0x00010004, 0x04010000, 0x00000104,
+        0x04000000, 0x00000004, 0x04010100, 0x00000100,
+        0x00010100, 0x04010000, 0x04010004, 0x00010104,
+        0x04000104, 0x00010100, 0x00010000, 0x04000104,
+        0x00000004, 0x04010104, 0x00000100, 0x04000000,
+        0x04010100, 0x04000000, 0x00010004, 0x00000104,
+        0x00010000, 0x04010100, 0x04000100, 0x00000000,
+        0x00000100, 0x00010004, 0x04010104, 0x04000100,
+        0x04000004, 0x00000100, 0x00000000, 0x04010004,
+        0x04000104, 0x00010000, 0x04000000, 0x04010104,
+        0x00000004, 0x00010104, 0x00010100, 0x04000004,
+        0x04010000, 0x04000104, 0x00000104, 0x04010000,
+        0x00010104, 0x00000004, 0x04010004, 0x00010100
+    );
+
+    /**
+     * Pre-permuted S-box4
+     *
+     * @var array
+     * @access private
+     */
+    var $sbox4 = array(
+        0x80401000, 0x80001040, 0x80001040, 0x00000040,
+        0x00401040, 0x80400040, 0x80400000, 0x80001000,
+        0x00000000, 0x00401000, 0x00401000, 0x80401040,
+        0x80000040, 0x00000000, 0x00400040, 0x80400000,
+        0x80000000, 0x00001000, 0x00400000, 0x80401000,
+        0x00000040, 0x00400000, 0x80001000, 0x00001040,
+        0x80400040, 0x80000000, 0x00001040, 0x00400040,
+        0x00001000, 0x00401040, 0x80401040, 0x80000040,
+        0x00400040, 0x80400000, 0x00401000, 0x80401040,
+        0x80000040, 0x00000000, 0x00000000, 0x00401000,
+        0x00001040, 0x00400040, 0x80400040, 0x80000000,
+        0x80401000, 0x80001040, 0x80001040, 0x00000040,
+        0x80401040, 0x80000040, 0x80000000, 0x00001000,
+        0x80400000, 0x80001000, 0x00401040, 0x80400040,
+        0x80001000, 0x00001040, 0x00400000, 0x80401000,
+        0x00000040, 0x00400000, 0x00001000, 0x00401040
+    );
+
+    /**
+     * Pre-permuted S-box5
+     *
+     * @var array
+     * @access private
+     */
+    var $sbox5 = array(
+        0x00000080, 0x01040080, 0x01040000, 0x21000080,
+        0x00040000, 0x00000080, 0x20000000, 0x01040000,
+        0x20040080, 0x00040000, 0x01000080, 0x20040080,
+        0x21000080, 0x21040000, 0x00040080, 0x20000000,
+        0x01000000, 0x20040000, 0x20040000, 0x00000000,
+        0x20000080, 0x21040080, 0x21040080, 0x01000080,
+        0x21040000, 0x20000080, 0x00000000, 0x21000000,
+        0x01040080, 0x01000000, 0x21000000, 0x00040080,
+        0x00040000, 0x21000080, 0x00000080, 0x01000000,
+        0x20000000, 0x01040000, 0x21000080, 0x20040080,
+        0x01000080, 0x20000000, 0x21040000, 0x01040080,
+        0x20040080, 0x00000080, 0x01000000, 0x21040000,
+        0x21040080, 0x00040080, 0x21000000, 0x21040080,
+        0x01040000, 0x00000000, 0x20040000, 0x21000000,
+        0x00040080, 0x01000080, 0x20000080, 0x00040000,
+        0x00000000, 0x20040000, 0x01040080, 0x20000080
+    );
+
+    /**
+     * Pre-permuted S-box6
+     *
+     * @var array
+     * @access private
+     */
+    var $sbox6 = array(
+        0x10000008, 0x10200000, 0x00002000, 0x10202008,
+        0x10200000, 0x00000008, 0x10202008, 0x00200000,
+        0x10002000, 0x00202008, 0x00200000, 0x10000008,
+        0x00200008, 0x10002000, 0x10000000, 0x00002008,
+        0x00000000, 0x00200008, 0x10002008, 0x00002000,
+        0x00202000, 0x10002008, 0x00000008, 0x10200008,
+        0x10200008, 0x00000000, 0x00202008, 0x10202000,
+        0x00002008, 0x00202000, 0x10202000, 0x10000000,
+        0x10002000, 0x00000008, 0x10200008, 0x00202000,
+        0x10202008, 0x00200000, 0x00002008, 0x10000008,
+        0x00200000, 0x10002000, 0x10000000, 0x00002008,
+        0x10000008, 0x10202008, 0x00202000, 0x10200000,
+        0x00202008, 0x10202000, 0x00000000, 0x10200008,
+        0x00000008, 0x00002000, 0x10200000, 0x00202008,
+        0x00002000, 0x00200008, 0x10002008, 0x00000000,
+        0x10202000, 0x10000000, 0x00200008, 0x10002008
+    );
+
+    /**
+     * Pre-permuted S-box7
+     *
+     * @var array
+     * @access private
+     */
+    var $sbox7 = array(
+        0x00100000, 0x02100001, 0x02000401, 0x00000000,
+        0x00000400, 0x02000401, 0x00100401, 0x02100400,
+        0x02100401, 0x00100000, 0x00000000, 0x02000001,
+        0x00000001, 0x02000000, 0x02100001, 0x00000401,
+        0x02000400, 0x00100401, 0x00100001, 0x02000400,
+        0x02000001, 0x02100000, 0x02100400, 0x00100001,
+        0x02100000, 0x00000400, 0x00000401, 0x02100401,
+        0x00100400, 0x00000001, 0x02000000, 0x00100400,
+        0x02000000, 0x00100400, 0x00100000, 0x02000401,
+        0x02000401, 0x02100001, 0x02100001, 0x00000001,
+        0x00100001, 0x02000000, 0x02000400, 0x00100000,
+        0x02100400, 0x00000401, 0x00100401, 0x02100400,
+        0x00000401, 0x02000001, 0x02100401, 0x02100000,
+        0x00100400, 0x00000000, 0x00000001, 0x02100401,
+        0x00000000, 0x00100401, 0x02100000, 0x00000400,
+        0x02000001, 0x02000400, 0x00000400, 0x00100001
+    );
+
+    /**
+     * Pre-permuted S-box8
+     *
+     * @var array
+     * @access private
+     */
+    var $sbox8 = array(
+        0x08000820, 0x00000800, 0x00020000, 0x08020820,
+        0x08000000, 0x08000820, 0x00000020, 0x08000000,
+        0x00020020, 0x08020000, 0x08020820, 0x00020800,
+        0x08020800, 0x00020820, 0x00000800, 0x00000020,
+        0x08020000, 0x08000020, 0x08000800, 0x00000820,
+        0x00020800, 0x00020020, 0x08020020, 0x08020800,
+        0x00000820, 0x00000000, 0x00000000, 0x08020020,
+        0x08000020, 0x08000800, 0x00020820, 0x00020000,
+        0x00020820, 0x00020000, 0x08020800, 0x00000800,
+        0x00000020, 0x08020020, 0x00000800, 0x00020820,
+        0x08000800, 0x00000020, 0x08000020, 0x08020000,
+        0x08020020, 0x08000000, 0x00020000, 0x08000820,
+        0x00000000, 0x08020820, 0x00020020, 0x08000020,
+        0x08020000, 0x08000800, 0x08000820, 0x00000000,
+        0x08020820, 0x00020800, 0x00020800, 0x00000820,
+        0x00000820, 0x00020020, 0x08000000, 0x08020800
+    );
+
+    /**
+     * Test for engine validity
+     *
+     * This is mainly just a wrapper to set things up for \phpseclib\Crypt\Base::isValidEngine()
+     *
+     * @see \phpseclib\Crypt\Base::isValidEngine()
+     * @param int $engine
+     * @access public
+     * @return bool
+     */
+    function isValidEngine($engine)
+    {
+        if ($this->key_length_max == 8) {
+            if ($engine == self::ENGINE_OPENSSL) {
+                $this->cipher_name_openssl_ecb = 'des-ecb';
+                $this->cipher_name_openssl = 'des-' . $this->_openssl_translate_mode();
+            }
+        }
+
+        return parent::isValidEngine($engine);
+    }
+
+    /**
+     * Sets the key.
+     *
+     * Keys can be of any length.  DES, itself, uses 64-bit keys (eg. strlen($key) == 8), however, we
+     * only use the first eight, if $key has more then eight characters in it, and pad $key with the
+     * null byte if it is less then eight characters long.
+     *
+     * DES also requires that every eighth bit be a parity bit, however, we'll ignore that.
+     *
+     * If the key is not explicitly set, it'll be assumed to be all zero's.
+     *
+     * @see \phpseclib\Crypt\Base::setKey()
+     * @access public
+     * @param string $key
+     */
+    function setKey($key)
+    {
+        // We check/cut here only up to max length of the key.
+        // Key padding to the proper length will be done in _setupKey()
+        if (strlen($key) > $this->key_length_max) {
+            $key = substr($key, 0, $this->key_length_max);
+        }
+
+        // Sets the key
+        parent::setKey($key);
+    }
+
+    /**
+     * Encrypts a block
+     *
+     * @see \phpseclib\Crypt\Base::_encryptBlock()
+     * @see \phpseclib\Crypt\Base::encrypt()
+     * @see self::encrypt()
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    function _encryptBlock($in)
+    {
+        return $this->_processBlock($in, self::ENCRYPT);
+    }
+
+    /**
+     * Decrypts a block
+     *
+     * @see \phpseclib\Crypt\Base::_decryptBlock()
+     * @see \phpseclib\Crypt\Base::decrypt()
+     * @see self::decrypt()
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    function _decryptBlock($in)
+    {
+        return $this->_processBlock($in, self::DECRYPT);
+    }
+
+    /**
+     * Encrypts or decrypts a 64-bit block
+     *
+     * $mode should be either self::ENCRYPT or self::DECRYPT.  See
+     * {@link http://en.wikipedia.org/wiki/Image:Feistel.png Feistel.png} to get a general
+     * idea of what this function does.
+     *
+     * @see self::_encryptBlock()
+     * @see self::_decryptBlock()
+     * @access private
+     * @param string $block
+     * @param int $mode
+     * @return string
+     */
+    function _processBlock($block, $mode)
+    {
+        static $sbox1, $sbox2, $sbox3, $sbox4, $sbox5, $sbox6, $sbox7, $sbox8, $shuffleip, $shuffleinvip;
+        if (!$sbox1) {
+            $sbox1 = array_map("intval", $this->sbox1);
+            $sbox2 = array_map("intval", $this->sbox2);
+            $sbox3 = array_map("intval", $this->sbox3);
+            $sbox4 = array_map("intval", $this->sbox4);
+            $sbox5 = array_map("intval", $this->sbox5);
+            $sbox6 = array_map("intval", $this->sbox6);
+            $sbox7 = array_map("intval", $this->sbox7);
+            $sbox8 = array_map("intval", $this->sbox8);
+            /* Merge $shuffle with $[inv]ipmap */
+            for ($i = 0; $i < 256; ++$i) {
+                $shuffleip[]    =  $this->shuffle[$this->ipmap[$i]];
+                $shuffleinvip[] =  $this->shuffle[$this->invipmap[$i]];
+            }
+        }
+
+        $keys  = $this->keys[$mode];
+        $ki    = -1;
+
+        // Do the initial IP permutation.
+        $t = unpack('Nl/Nr', $block);
+        list($l, $r) = array($t['l'], $t['r']);
+        $block = ($shuffleip[ $r        & 0xFF] & "\x80\x80\x80\x80\x80\x80\x80\x80") |
+                 ($shuffleip[($r >>  8) & 0xFF] & "\x40\x40\x40\x40\x40\x40\x40\x40") |
+                 ($shuffleip[($r >> 16) & 0xFF] & "\x20\x20\x20\x20\x20\x20\x20\x20") |
+                 ($shuffleip[($r >> 24) & 0xFF] & "\x10\x10\x10\x10\x10\x10\x10\x10") |
+                 ($shuffleip[ $l        & 0xFF] & "\x08\x08\x08\x08\x08\x08\x08\x08") |
+                 ($shuffleip[($l >>  8) & 0xFF] & "\x04\x04\x04\x04\x04\x04\x04\x04") |
+                 ($shuffleip[($l >> 16) & 0xFF] & "\x02\x02\x02\x02\x02\x02\x02\x02") |
+                 ($shuffleip[($l >> 24) & 0xFF] & "\x01\x01\x01\x01\x01\x01\x01\x01");
+
+        // Extract L0 and R0.
+        $t = unpack('Nl/Nr', $block);
+        list($l, $r) = array($t['l'], $t['r']);
+
+        for ($des_round = 0; $des_round < $this->des_rounds; ++$des_round) {
+            // Perform the 16 steps.
+            for ($i = 0; $i < 16; $i++) {
+                // start of "the Feistel (F) function" - see the following URL:
+                // http://en.wikipedia.org/wiki/Image:Data_Encryption_Standard_InfoBox_Diagram.png
+                // Merge key schedule.
+                $b1 = (($r >>  3) & 0x1FFFFFFF) ^ ($r << 29) ^ $keys[++$ki];
+                $b2 = (($r >> 31) & 0x00000001) ^ ($r <<  1) ^ $keys[++$ki];
+
+                // S-box indexing.
+                $t = $sbox1[($b1 >> 24) & 0x3F] ^ $sbox2[($b2 >> 24) & 0x3F] ^
+                     $sbox3[($b1 >> 16) & 0x3F] ^ $sbox4[($b2 >> 16) & 0x3F] ^
+                     $sbox5[($b1 >>  8) & 0x3F] ^ $sbox6[($b2 >>  8) & 0x3F] ^
+                     $sbox7[ $b1        & 0x3F] ^ $sbox8[ $b2        & 0x3F] ^ $l;
+                // end of "the Feistel (F) function"
+
+                $l = $r;
+                $r = $t;
+            }
+
+            // Last step should not permute L & R.
+            $t = $l;
+            $l = $r;
+            $r = $t;
+        }
+
+        // Perform the inverse IP permutation.
+        return ($shuffleinvip[($r >> 24) & 0xFF] & "\x80\x80\x80\x80\x80\x80\x80\x80") |
+               ($shuffleinvip[($l >> 24) & 0xFF] & "\x40\x40\x40\x40\x40\x40\x40\x40") |
+               ($shuffleinvip[($r >> 16) & 0xFF] & "\x20\x20\x20\x20\x20\x20\x20\x20") |
+               ($shuffleinvip[($l >> 16) & 0xFF] & "\x10\x10\x10\x10\x10\x10\x10\x10") |
+               ($shuffleinvip[($r >>  8) & 0xFF] & "\x08\x08\x08\x08\x08\x08\x08\x08") |
+               ($shuffleinvip[($l >>  8) & 0xFF] & "\x04\x04\x04\x04\x04\x04\x04\x04") |
+               ($shuffleinvip[ $r        & 0xFF] & "\x02\x02\x02\x02\x02\x02\x02\x02") |
+               ($shuffleinvip[ $l        & 0xFF] & "\x01\x01\x01\x01\x01\x01\x01\x01");
+    }
+
+    /**
+     * Creates the key schedule
+     *
+     * @see \phpseclib\Crypt\Base::_setupKey()
+     * @access private
+     */
+    function _setupKey()
+    {
+        if (isset($this->kl['key']) && $this->key === $this->kl['key'] && $this->des_rounds === $this->kl['des_rounds']) {
+            // already expanded
+            return;
+        }
+        $this->kl = array('key' => $this->key, 'des_rounds' => $this->des_rounds);
+
+        static $shifts = array( // number of key bits shifted per round
+            1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1
+        );
+
+        static $pc1map = array(
+            0x00, 0x00, 0x08, 0x08, 0x04, 0x04, 0x0C, 0x0C,
+            0x02, 0x02, 0x0A, 0x0A, 0x06, 0x06, 0x0E, 0x0E,
+            0x10, 0x10, 0x18, 0x18, 0x14, 0x14, 0x1C, 0x1C,
+            0x12, 0x12, 0x1A, 0x1A, 0x16, 0x16, 0x1E, 0x1E,
+            0x20, 0x20, 0x28, 0x28, 0x24, 0x24, 0x2C, 0x2C,
+            0x22, 0x22, 0x2A, 0x2A, 0x26, 0x26, 0x2E, 0x2E,
+            0x30, 0x30, 0x38, 0x38, 0x34, 0x34, 0x3C, 0x3C,
+            0x32, 0x32, 0x3A, 0x3A, 0x36, 0x36, 0x3E, 0x3E,
+            0x40, 0x40, 0x48, 0x48, 0x44, 0x44, 0x4C, 0x4C,
+            0x42, 0x42, 0x4A, 0x4A, 0x46, 0x46, 0x4E, 0x4E,
+            0x50, 0x50, 0x58, 0x58, 0x54, 0x54, 0x5C, 0x5C,
+            0x52, 0x52, 0x5A, 0x5A, 0x56, 0x56, 0x5E, 0x5E,
+            0x60, 0x60, 0x68, 0x68, 0x64, 0x64, 0x6C, 0x6C,
+            0x62, 0x62, 0x6A, 0x6A, 0x66, 0x66, 0x6E, 0x6E,
+            0x70, 0x70, 0x78, 0x78, 0x74, 0x74, 0x7C, 0x7C,
+            0x72, 0x72, 0x7A, 0x7A, 0x76, 0x76, 0x7E, 0x7E,
+            0x80, 0x80, 0x88, 0x88, 0x84, 0x84, 0x8C, 0x8C,
+            0x82, 0x82, 0x8A, 0x8A, 0x86, 0x86, 0x8E, 0x8E,
+            0x90, 0x90, 0x98, 0x98, 0x94, 0x94, 0x9C, 0x9C,
+            0x92, 0x92, 0x9A, 0x9A, 0x96, 0x96, 0x9E, 0x9E,
+            0xA0, 0xA0, 0xA8, 0xA8, 0xA4, 0xA4, 0xAC, 0xAC,
+            0xA2, 0xA2, 0xAA, 0xAA, 0xA6, 0xA6, 0xAE, 0xAE,
+            0xB0, 0xB0, 0xB8, 0xB8, 0xB4, 0xB4, 0xBC, 0xBC,
+            0xB2, 0xB2, 0xBA, 0xBA, 0xB6, 0xB6, 0xBE, 0xBE,
+            0xC0, 0xC0, 0xC8, 0xC8, 0xC4, 0xC4, 0xCC, 0xCC,
+            0xC2, 0xC2, 0xCA, 0xCA, 0xC6, 0xC6, 0xCE, 0xCE,
+            0xD0, 0xD0, 0xD8, 0xD8, 0xD4, 0xD4, 0xDC, 0xDC,
+            0xD2, 0xD2, 0xDA, 0xDA, 0xD6, 0xD6, 0xDE, 0xDE,
+            0xE0, 0xE0, 0xE8, 0xE8, 0xE4, 0xE4, 0xEC, 0xEC,
+            0xE2, 0xE2, 0xEA, 0xEA, 0xE6, 0xE6, 0xEE, 0xEE,
+            0xF0, 0xF0, 0xF8, 0xF8, 0xF4, 0xF4, 0xFC, 0xFC,
+            0xF2, 0xF2, 0xFA, 0xFA, 0xF6, 0xF6, 0xFE, 0xFE
+        );
+
+        // Mapping tables for the PC-2 transformation.
+        static $pc2mapc1 = array(
+            0x00000000, 0x00000400, 0x00200000, 0x00200400,
+            0x00000001, 0x00000401, 0x00200001, 0x00200401,
+            0x02000000, 0x02000400, 0x02200000, 0x02200400,
+            0x02000001, 0x02000401, 0x02200001, 0x02200401
+        );
+        static $pc2mapc2 = array(
+            0x00000000, 0x00000800, 0x08000000, 0x08000800,
+            0x00010000, 0x00010800, 0x08010000, 0x08010800,
+            0x00000000, 0x00000800, 0x08000000, 0x08000800,
+            0x00010000, 0x00010800, 0x08010000, 0x08010800,
+            0x00000100, 0x00000900, 0x08000100, 0x08000900,
+            0x00010100, 0x00010900, 0x08010100, 0x08010900,
+            0x00000100, 0x00000900, 0x08000100, 0x08000900,
+            0x00010100, 0x00010900, 0x08010100, 0x08010900,
+            0x00000010, 0x00000810, 0x08000010, 0x08000810,
+            0x00010010, 0x00010810, 0x08010010, 0x08010810,
+            0x00000010, 0x00000810, 0x08000010, 0x08000810,
+            0x00010010, 0x00010810, 0x08010010, 0x08010810,
+            0x00000110, 0x00000910, 0x08000110, 0x08000910,
+            0x00010110, 0x00010910, 0x08010110, 0x08010910,
+            0x00000110, 0x00000910, 0x08000110, 0x08000910,
+            0x00010110, 0x00010910, 0x08010110, 0x08010910,
+            0x00040000, 0x00040800, 0x08040000, 0x08040800,
+            0x00050000, 0x00050800, 0x08050000, 0x08050800,
+            0x00040000, 0x00040800, 0x08040000, 0x08040800,
+            0x00050000, 0x00050800, 0x08050000, 0x08050800,
+            0x00040100, 0x00040900, 0x08040100, 0x08040900,
+            0x00050100, 0x00050900, 0x08050100, 0x08050900,
+            0x00040100, 0x00040900, 0x08040100, 0x08040900,
+            0x00050100, 0x00050900, 0x08050100, 0x08050900,
+            0x00040010, 0x00040810, 0x08040010, 0x08040810,
+            0x00050010, 0x00050810, 0x08050010, 0x08050810,
+            0x00040010, 0x00040810, 0x08040010, 0x08040810,
+            0x00050010, 0x00050810, 0x08050010, 0x08050810,
+            0x00040110, 0x00040910, 0x08040110, 0x08040910,
+            0x00050110, 0x00050910, 0x08050110, 0x08050910,
+            0x00040110, 0x00040910, 0x08040110, 0x08040910,
+            0x00050110, 0x00050910, 0x08050110, 0x08050910,
+            0x01000000, 0x01000800, 0x09000000, 0x09000800,
+            0x01010000, 0x01010800, 0x09010000, 0x09010800,
+            0x01000000, 0x01000800, 0x09000000, 0x09000800,
+            0x01010000, 0x01010800, 0x09010000, 0x09010800,
+            0x01000100, 0x01000900, 0x09000100, 0x09000900,
+            0x01010100, 0x01010900, 0x09010100, 0x09010900,
+            0x01000100, 0x01000900, 0x09000100, 0x09000900,
+            0x01010100, 0x01010900, 0x09010100, 0x09010900,
+            0x01000010, 0x01000810, 0x09000010, 0x09000810,
+            0x01010010, 0x01010810, 0x09010010, 0x09010810,
+            0x01000010, 0x01000810, 0x09000010, 0x09000810,
+            0x01010010, 0x01010810, 0x09010010, 0x09010810,
+            0x01000110, 0x01000910, 0x09000110, 0x09000910,
+            0x01010110, 0x01010910, 0x09010110, 0x09010910,
+            0x01000110, 0x01000910, 0x09000110, 0x09000910,
+            0x01010110, 0x01010910, 0x09010110, 0x09010910,
+            0x01040000, 0x01040800, 0x09040000, 0x09040800,
+            0x01050000, 0x01050800, 0x09050000, 0x09050800,
+            0x01040000, 0x01040800, 0x09040000, 0x09040800,
+            0x01050000, 0x01050800, 0x09050000, 0x09050800,
+            0x01040100, 0x01040900, 0x09040100, 0x09040900,
+            0x01050100, 0x01050900, 0x09050100, 0x09050900,
+            0x01040100, 0x01040900, 0x09040100, 0x09040900,
+            0x01050100, 0x01050900, 0x09050100, 0x09050900,
+            0x01040010, 0x01040810, 0x09040010, 0x09040810,
+            0x01050010, 0x01050810, 0x09050010, 0x09050810,
+            0x01040010, 0x01040810, 0x09040010, 0x09040810,
+            0x01050010, 0x01050810, 0x09050010, 0x09050810,
+            0x01040110, 0x01040910, 0x09040110, 0x09040910,
+            0x01050110, 0x01050910, 0x09050110, 0x09050910,
+            0x01040110, 0x01040910, 0x09040110, 0x09040910,
+            0x01050110, 0x01050910, 0x09050110, 0x09050910
+        );
+        static $pc2mapc3 = array(
+            0x00000000, 0x00000004, 0x00001000, 0x00001004,
+            0x00000000, 0x00000004, 0x00001000, 0x00001004,
+            0x10000000, 0x10000004, 0x10001000, 0x10001004,
+            0x10000000, 0x10000004, 0x10001000, 0x10001004,
+            0x00000020, 0x00000024, 0x00001020, 0x00001024,
+            0x00000020, 0x00000024, 0x00001020, 0x00001024,
+            0x10000020, 0x10000024, 0x10001020, 0x10001024,
+            0x10000020, 0x10000024, 0x10001020, 0x10001024,
+            0x00080000, 0x00080004, 0x00081000, 0x00081004,
+            0x00080000, 0x00080004, 0x00081000, 0x00081004,
+            0x10080000, 0x10080004, 0x10081000, 0x10081004,
+            0x10080000, 0x10080004, 0x10081000, 0x10081004,
+            0x00080020, 0x00080024, 0x00081020, 0x00081024,
+            0x00080020, 0x00080024, 0x00081020, 0x00081024,
+            0x10080020, 0x10080024, 0x10081020, 0x10081024,
+            0x10080020, 0x10080024, 0x10081020, 0x10081024,
+            0x20000000, 0x20000004, 0x20001000, 0x20001004,
+            0x20000000, 0x20000004, 0x20001000, 0x20001004,
+            0x30000000, 0x30000004, 0x30001000, 0x30001004,
+            0x30000000, 0x30000004, 0x30001000, 0x30001004,
+            0x20000020, 0x20000024, 0x20001020, 0x20001024,
+            0x20000020, 0x20000024, 0x20001020, 0x20001024,
+            0x30000020, 0x30000024, 0x30001020, 0x30001024,
+            0x30000020, 0x30000024, 0x30001020, 0x30001024,
+            0x20080000, 0x20080004, 0x20081000, 0x20081004,
+            0x20080000, 0x20080004, 0x20081000, 0x20081004,
+            0x30080000, 0x30080004, 0x30081000, 0x30081004,
+            0x30080000, 0x30080004, 0x30081000, 0x30081004,
+            0x20080020, 0x20080024, 0x20081020, 0x20081024,
+            0x20080020, 0x20080024, 0x20081020, 0x20081024,
+            0x30080020, 0x30080024, 0x30081020, 0x30081024,
+            0x30080020, 0x30080024, 0x30081020, 0x30081024,
+            0x00000002, 0x00000006, 0x00001002, 0x00001006,
+            0x00000002, 0x00000006, 0x00001002, 0x00001006,
+            0x10000002, 0x10000006, 0x10001002, 0x10001006,
+            0x10000002, 0x10000006, 0x10001002, 0x10001006,
+            0x00000022, 0x00000026, 0x00001022, 0x00001026,
+            0x00000022, 0x00000026, 0x00001022, 0x00001026,
+            0x10000022, 0x10000026, 0x10001022, 0x10001026,
+            0x10000022, 0x10000026, 0x10001022, 0x10001026,
+            0x00080002, 0x00080006, 0x00081002, 0x00081006,
+            0x00080002, 0x00080006, 0x00081002, 0x00081006,
+            0x10080002, 0x10080006, 0x10081002, 0x10081006,
+            0x10080002, 0x10080006, 0x10081002, 0x10081006,
+            0x00080022, 0x00080026, 0x00081022, 0x00081026,
+            0x00080022, 0x00080026, 0x00081022, 0x00081026,
+            0x10080022, 0x10080026, 0x10081022, 0x10081026,
+            0x10080022, 0x10080026, 0x10081022, 0x10081026,
+            0x20000002, 0x20000006, 0x20001002, 0x20001006,
+            0x20000002, 0x20000006, 0x20001002, 0x20001006,
+            0x30000002, 0x30000006, 0x30001002, 0x30001006,
+            0x30000002, 0x30000006, 0x30001002, 0x30001006,
+            0x20000022, 0x20000026, 0x20001022, 0x20001026,
+            0x20000022, 0x20000026, 0x20001022, 0x20001026,
+            0x30000022, 0x30000026, 0x30001022, 0x30001026,
+            0x30000022, 0x30000026, 0x30001022, 0x30001026,
+            0x20080002, 0x20080006, 0x20081002, 0x20081006,
+            0x20080002, 0x20080006, 0x20081002, 0x20081006,
+            0x30080002, 0x30080006, 0x30081002, 0x30081006,
+            0x30080002, 0x30080006, 0x30081002, 0x30081006,
+            0x20080022, 0x20080026, 0x20081022, 0x20081026,
+            0x20080022, 0x20080026, 0x20081022, 0x20081026,
+            0x30080022, 0x30080026, 0x30081022, 0x30081026,
+            0x30080022, 0x30080026, 0x30081022, 0x30081026
+        );
+        static $pc2mapc4 = array(
+            0x00000000, 0x00100000, 0x00000008, 0x00100008,
+            0x00000200, 0x00100200, 0x00000208, 0x00100208,
+            0x00000000, 0x00100000, 0x00000008, 0x00100008,
+            0x00000200, 0x00100200, 0x00000208, 0x00100208,
+            0x04000000, 0x04100000, 0x04000008, 0x04100008,
+            0x04000200, 0x04100200, 0x04000208, 0x04100208,
+            0x04000000, 0x04100000, 0x04000008, 0x04100008,
+            0x04000200, 0x04100200, 0x04000208, 0x04100208,
+            0x00002000, 0x00102000, 0x00002008, 0x00102008,
+            0x00002200, 0x00102200, 0x00002208, 0x00102208,
+            0x00002000, 0x00102000, 0x00002008, 0x00102008,
+            0x00002200, 0x00102200, 0x00002208, 0x00102208,
+            0x04002000, 0x04102000, 0x04002008, 0x04102008,
+            0x04002200, 0x04102200, 0x04002208, 0x04102208,
+            0x04002000, 0x04102000, 0x04002008, 0x04102008,
+            0x04002200, 0x04102200, 0x04002208, 0x04102208,
+            0x00000000, 0x00100000, 0x00000008, 0x00100008,
+            0x00000200, 0x00100200, 0x00000208, 0x00100208,
+            0x00000000, 0x00100000, 0x00000008, 0x00100008,
+            0x00000200, 0x00100200, 0x00000208, 0x00100208,
+            0x04000000, 0x04100000, 0x04000008, 0x04100008,
+            0x04000200, 0x04100200, 0x04000208, 0x04100208,
+            0x04000000, 0x04100000, 0x04000008, 0x04100008,
+            0x04000200, 0x04100200, 0x04000208, 0x04100208,
+            0x00002000, 0x00102000, 0x00002008, 0x00102008,
+            0x00002200, 0x00102200, 0x00002208, 0x00102208,
+            0x00002000, 0x00102000, 0x00002008, 0x00102008,
+            0x00002200, 0x00102200, 0x00002208, 0x00102208,
+            0x04002000, 0x04102000, 0x04002008, 0x04102008,
+            0x04002200, 0x04102200, 0x04002208, 0x04102208,
+            0x04002000, 0x04102000, 0x04002008, 0x04102008,
+            0x04002200, 0x04102200, 0x04002208, 0x04102208,
+            0x00020000, 0x00120000, 0x00020008, 0x00120008,
+            0x00020200, 0x00120200, 0x00020208, 0x00120208,
+            0x00020000, 0x00120000, 0x00020008, 0x00120008,
+            0x00020200, 0x00120200, 0x00020208, 0x00120208,
+            0x04020000, 0x04120000, 0x04020008, 0x04120008,
+            0x04020200, 0x04120200, 0x04020208, 0x04120208,
+            0x04020000, 0x04120000, 0x04020008, 0x04120008,
+            0x04020200, 0x04120200, 0x04020208, 0x04120208,
+            0x00022000, 0x00122000, 0x00022008, 0x00122008,
+            0x00022200, 0x00122200, 0x00022208, 0x00122208,
+            0x00022000, 0x00122000, 0x00022008, 0x00122008,
+            0x00022200, 0x00122200, 0x00022208, 0x00122208,
+            0x04022000, 0x04122000, 0x04022008, 0x04122008,
+            0x04022200, 0x04122200, 0x04022208, 0x04122208,
+            0x04022000, 0x04122000, 0x04022008, 0x04122008,
+            0x04022200, 0x04122200, 0x04022208, 0x04122208,
+            0x00020000, 0x00120000, 0x00020008, 0x00120008,
+            0x00020200, 0x00120200, 0x00020208, 0x00120208,
+            0x00020000, 0x00120000, 0x00020008, 0x00120008,
+            0x00020200, 0x00120200, 0x00020208, 0x00120208,
+            0x04020000, 0x04120000, 0x04020008, 0x04120008,
+            0x04020200, 0x04120200, 0x04020208, 0x04120208,
+            0x04020000, 0x04120000, 0x04020008, 0x04120008,
+            0x04020200, 0x04120200, 0x04020208, 0x04120208,
+            0x00022000, 0x00122000, 0x00022008, 0x00122008,
+            0x00022200, 0x00122200, 0x00022208, 0x00122208,
+            0x00022000, 0x00122000, 0x00022008, 0x00122008,
+            0x00022200, 0x00122200, 0x00022208, 0x00122208,
+            0x04022000, 0x04122000, 0x04022008, 0x04122008,
+            0x04022200, 0x04122200, 0x04022208, 0x04122208,
+            0x04022000, 0x04122000, 0x04022008, 0x04122008,
+            0x04022200, 0x04122200, 0x04022208, 0x04122208
+        );
+        static $pc2mapd1 = array(
+            0x00000000, 0x00000001, 0x08000000, 0x08000001,
+            0x00200000, 0x00200001, 0x08200000, 0x08200001,
+            0x00000002, 0x00000003, 0x08000002, 0x08000003,
+            0x00200002, 0x00200003, 0x08200002, 0x08200003
+        );
+        static $pc2mapd2 = array(
+            0x00000000, 0x00100000, 0x00000800, 0x00100800,
+            0x00000000, 0x00100000, 0x00000800, 0x00100800,
+            0x04000000, 0x04100000, 0x04000800, 0x04100800,
+            0x04000000, 0x04100000, 0x04000800, 0x04100800,
+            0x00000004, 0x00100004, 0x00000804, 0x00100804,
+            0x00000004, 0x00100004, 0x00000804, 0x00100804,
+            0x04000004, 0x04100004, 0x04000804, 0x04100804,
+            0x04000004, 0x04100004, 0x04000804, 0x04100804,
+            0x00000000, 0x00100000, 0x00000800, 0x00100800,
+            0x00000000, 0x00100000, 0x00000800, 0x00100800,
+            0x04000000, 0x04100000, 0x04000800, 0x04100800,
+            0x04000000, 0x04100000, 0x04000800, 0x04100800,
+            0x00000004, 0x00100004, 0x00000804, 0x00100804,
+            0x00000004, 0x00100004, 0x00000804, 0x00100804,
+            0x04000004, 0x04100004, 0x04000804, 0x04100804,
+            0x04000004, 0x04100004, 0x04000804, 0x04100804,
+            0x00000200, 0x00100200, 0x00000A00, 0x00100A00,
+            0x00000200, 0x00100200, 0x00000A00, 0x00100A00,
+            0x04000200, 0x04100200, 0x04000A00, 0x04100A00,
+            0x04000200, 0x04100200, 0x04000A00, 0x04100A00,
+            0x00000204, 0x00100204, 0x00000A04, 0x00100A04,
+            0x00000204, 0x00100204, 0x00000A04, 0x00100A04,
+            0x04000204, 0x04100204, 0x04000A04, 0x04100A04,
+            0x04000204, 0x04100204, 0x04000A04, 0x04100A04,
+            0x00000200, 0x00100200, 0x00000A00, 0x00100A00,
+            0x00000200, 0x00100200, 0x00000A00, 0x00100A00,
+            0x04000200, 0x04100200, 0x04000A00, 0x04100A00,
+            0x04000200, 0x04100200, 0x04000A00, 0x04100A00,
+            0x00000204, 0x00100204, 0x00000A04, 0x00100A04,
+            0x00000204, 0x00100204, 0x00000A04, 0x00100A04,
+            0x04000204, 0x04100204, 0x04000A04, 0x04100A04,
+            0x04000204, 0x04100204, 0x04000A04, 0x04100A04,
+            0x00020000, 0x00120000, 0x00020800, 0x00120800,
+            0x00020000, 0x00120000, 0x00020800, 0x00120800,
+            0x04020000, 0x04120000, 0x04020800, 0x04120800,
+            0x04020000, 0x04120000, 0x04020800, 0x04120800,
+            0x00020004, 0x00120004, 0x00020804, 0x00120804,
+            0x00020004, 0x00120004, 0x00020804, 0x00120804,
+            0x04020004, 0x04120004, 0x04020804, 0x04120804,
+            0x04020004, 0x04120004, 0x04020804, 0x04120804,
+            0x00020000, 0x00120000, 0x00020800, 0x00120800,
+            0x00020000, 0x00120000, 0x00020800, 0x00120800,
+            0x04020000, 0x04120000, 0x04020800, 0x04120800,
+            0x04020000, 0x04120000, 0x04020800, 0x04120800,
+            0x00020004, 0x00120004, 0x00020804, 0x00120804,
+            0x00020004, 0x00120004, 0x00020804, 0x00120804,
+            0x04020004, 0x04120004, 0x04020804, 0x04120804,
+            0x04020004, 0x04120004, 0x04020804, 0x04120804,
+            0x00020200, 0x00120200, 0x00020A00, 0x00120A00,
+            0x00020200, 0x00120200, 0x00020A00, 0x00120A00,
+            0x04020200, 0x04120200, 0x04020A00, 0x04120A00,
+            0x04020200, 0x04120200, 0x04020A00, 0x04120A00,
+            0x00020204, 0x00120204, 0x00020A04, 0x00120A04,
+            0x00020204, 0x00120204, 0x00020A04, 0x00120A04,
+            0x04020204, 0x04120204, 0x04020A04, 0x04120A04,
+            0x04020204, 0x04120204, 0x04020A04, 0x04120A04,
+            0x00020200, 0x00120200, 0x00020A00, 0x00120A00,
+            0x00020200, 0x00120200, 0x00020A00, 0x00120A00,
+            0x04020200, 0x04120200, 0x04020A00, 0x04120A00,
+            0x04020200, 0x04120200, 0x04020A00, 0x04120A00,
+            0x00020204, 0x00120204, 0x00020A04, 0x00120A04,
+            0x00020204, 0x00120204, 0x00020A04, 0x00120A04,
+            0x04020204, 0x04120204, 0x04020A04, 0x04120A04,
+            0x04020204, 0x04120204, 0x04020A04, 0x04120A04
+        );
+        static $pc2mapd3 = array(
+            0x00000000, 0x00010000, 0x02000000, 0x02010000,
+            0x00000020, 0x00010020, 0x02000020, 0x02010020,
+            0x00040000, 0x00050000, 0x02040000, 0x02050000,
+            0x00040020, 0x00050020, 0x02040020, 0x02050020,
+            0x00002000, 0x00012000, 0x02002000, 0x02012000,
+            0x00002020, 0x00012020, 0x02002020, 0x02012020,
+            0x00042000, 0x00052000, 0x02042000, 0x02052000,
+            0x00042020, 0x00052020, 0x02042020, 0x02052020,
+            0x00000000, 0x00010000, 0x02000000, 0x02010000,
+            0x00000020, 0x00010020, 0x02000020, 0x02010020,
+            0x00040000, 0x00050000, 0x02040000, 0x02050000,
+            0x00040020, 0x00050020, 0x02040020, 0x02050020,
+            0x00002000, 0x00012000, 0x02002000, 0x02012000,
+            0x00002020, 0x00012020, 0x02002020, 0x02012020,
+            0x00042000, 0x00052000, 0x02042000, 0x02052000,
+            0x00042020, 0x00052020, 0x02042020, 0x02052020,
+            0x00000010, 0x00010010, 0x02000010, 0x02010010,
+            0x00000030, 0x00010030, 0x02000030, 0x02010030,
+            0x00040010, 0x00050010, 0x02040010, 0x02050010,
+            0x00040030, 0x00050030, 0x02040030, 0x02050030,
+            0x00002010, 0x00012010, 0x02002010, 0x02012010,
+            0x00002030, 0x00012030, 0x02002030, 0x02012030,
+            0x00042010, 0x00052010, 0x02042010, 0x02052010,
+            0x00042030, 0x00052030, 0x02042030, 0x02052030,
+            0x00000010, 0x00010010, 0x02000010, 0x02010010,
+            0x00000030, 0x00010030, 0x02000030, 0x02010030,
+            0x00040010, 0x00050010, 0x02040010, 0x02050010,
+            0x00040030, 0x00050030, 0x02040030, 0x02050030,
+            0x00002010, 0x00012010, 0x02002010, 0x02012010,
+            0x00002030, 0x00012030, 0x02002030, 0x02012030,
+            0x00042010, 0x00052010, 0x02042010, 0x02052010,
+            0x00042030, 0x00052030, 0x02042030, 0x02052030,
+            0x20000000, 0x20010000, 0x22000000, 0x22010000,
+            0x20000020, 0x20010020, 0x22000020, 0x22010020,
+            0x20040000, 0x20050000, 0x22040000, 0x22050000,
+            0x20040020, 0x20050020, 0x22040020, 0x22050020,
+            0x20002000, 0x20012000, 0x22002000, 0x22012000,
+            0x20002020, 0x20012020, 0x22002020, 0x22012020,
+            0x20042000, 0x20052000, 0x22042000, 0x22052000,
+            0x20042020, 0x20052020, 0x22042020, 0x22052020,
+            0x20000000, 0x20010000, 0x22000000, 0x22010000,
+            0x20000020, 0x20010020, 0x22000020, 0x22010020,
+            0x20040000, 0x20050000, 0x22040000, 0x22050000,
+            0x20040020, 0x20050020, 0x22040020, 0x22050020,
+            0x20002000, 0x20012000, 0x22002000, 0x22012000,
+            0x20002020, 0x20012020, 0x22002020, 0x22012020,
+            0x20042000, 0x20052000, 0x22042000, 0x22052000,
+            0x20042020, 0x20052020, 0x22042020, 0x22052020,
+            0x20000010, 0x20010010, 0x22000010, 0x22010010,
+            0x20000030, 0x20010030, 0x22000030, 0x22010030,
+            0x20040010, 0x20050010, 0x22040010, 0x22050010,
+            0x20040030, 0x20050030, 0x22040030, 0x22050030,
+            0x20002010, 0x20012010, 0x22002010, 0x22012010,
+            0x20002030, 0x20012030, 0x22002030, 0x22012030,
+            0x20042010, 0x20052010, 0x22042010, 0x22052010,
+            0x20042030, 0x20052030, 0x22042030, 0x22052030,
+            0x20000010, 0x20010010, 0x22000010, 0x22010010,
+            0x20000030, 0x20010030, 0x22000030, 0x22010030,
+            0x20040010, 0x20050010, 0x22040010, 0x22050010,
+            0x20040030, 0x20050030, 0x22040030, 0x22050030,
+            0x20002010, 0x20012010, 0x22002010, 0x22012010,
+            0x20002030, 0x20012030, 0x22002030, 0x22012030,
+            0x20042010, 0x20052010, 0x22042010, 0x22052010,
+            0x20042030, 0x20052030, 0x22042030, 0x22052030
+        );
+        static $pc2mapd4 = array(
+            0x00000000, 0x00000400, 0x01000000, 0x01000400,
+            0x00000000, 0x00000400, 0x01000000, 0x01000400,
+            0x00000100, 0x00000500, 0x01000100, 0x01000500,
+            0x00000100, 0x00000500, 0x01000100, 0x01000500,
+            0x10000000, 0x10000400, 0x11000000, 0x11000400,
+            0x10000000, 0x10000400, 0x11000000, 0x11000400,
+            0x10000100, 0x10000500, 0x11000100, 0x11000500,
+            0x10000100, 0x10000500, 0x11000100, 0x11000500,
+            0x00080000, 0x00080400, 0x01080000, 0x01080400,
+            0x00080000, 0x00080400, 0x01080000, 0x01080400,
+            0x00080100, 0x00080500, 0x01080100, 0x01080500,
+            0x00080100, 0x00080500, 0x01080100, 0x01080500,
+            0x10080000, 0x10080400, 0x11080000, 0x11080400,
+            0x10080000, 0x10080400, 0x11080000, 0x11080400,
+            0x10080100, 0x10080500, 0x11080100, 0x11080500,
+            0x10080100, 0x10080500, 0x11080100, 0x11080500,
+            0x00000008, 0x00000408, 0x01000008, 0x01000408,
+            0x00000008, 0x00000408, 0x01000008, 0x01000408,
+            0x00000108, 0x00000508, 0x01000108, 0x01000508,
+            0x00000108, 0x00000508, 0x01000108, 0x01000508,
+            0x10000008, 0x10000408, 0x11000008, 0x11000408,
+            0x10000008, 0x10000408, 0x11000008, 0x11000408,
+            0x10000108, 0x10000508, 0x11000108, 0x11000508,
+            0x10000108, 0x10000508, 0x11000108, 0x11000508,
+            0x00080008, 0x00080408, 0x01080008, 0x01080408,
+            0x00080008, 0x00080408, 0x01080008, 0x01080408,
+            0x00080108, 0x00080508, 0x01080108, 0x01080508,
+            0x00080108, 0x00080508, 0x01080108, 0x01080508,
+            0x10080008, 0x10080408, 0x11080008, 0x11080408,
+            0x10080008, 0x10080408, 0x11080008, 0x11080408,
+            0x10080108, 0x10080508, 0x11080108, 0x11080508,
+            0x10080108, 0x10080508, 0x11080108, 0x11080508,
+            0x00001000, 0x00001400, 0x01001000, 0x01001400,
+            0x00001000, 0x00001400, 0x01001000, 0x01001400,
+            0x00001100, 0x00001500, 0x01001100, 0x01001500,
+            0x00001100, 0x00001500, 0x01001100, 0x01001500,
+            0x10001000, 0x10001400, 0x11001000, 0x11001400,
+            0x10001000, 0x10001400, 0x11001000, 0x11001400,
+            0x10001100, 0x10001500, 0x11001100, 0x11001500,
+            0x10001100, 0x10001500, 0x11001100, 0x11001500,
+            0x00081000, 0x00081400, 0x01081000, 0x01081400,
+            0x00081000, 0x00081400, 0x01081000, 0x01081400,
+            0x00081100, 0x00081500, 0x01081100, 0x01081500,
+            0x00081100, 0x00081500, 0x01081100, 0x01081500,
+            0x10081000, 0x10081400, 0x11081000, 0x11081400,
+            0x10081000, 0x10081400, 0x11081000, 0x11081400,
+            0x10081100, 0x10081500, 0x11081100, 0x11081500,
+            0x10081100, 0x10081500, 0x11081100, 0x11081500,
+            0x00001008, 0x00001408, 0x01001008, 0x01001408,
+            0x00001008, 0x00001408, 0x01001008, 0x01001408,
+            0x00001108, 0x00001508, 0x01001108, 0x01001508,
+            0x00001108, 0x00001508, 0x01001108, 0x01001508,
+            0x10001008, 0x10001408, 0x11001008, 0x11001408,
+            0x10001008, 0x10001408, 0x11001008, 0x11001408,
+            0x10001108, 0x10001508, 0x11001108, 0x11001508,
+            0x10001108, 0x10001508, 0x11001108, 0x11001508,
+            0x00081008, 0x00081408, 0x01081008, 0x01081408,
+            0x00081008, 0x00081408, 0x01081008, 0x01081408,
+            0x00081108, 0x00081508, 0x01081108, 0x01081508,
+            0x00081108, 0x00081508, 0x01081108, 0x01081508,
+            0x10081008, 0x10081408, 0x11081008, 0x11081408,
+            0x10081008, 0x10081408, 0x11081008, 0x11081408,
+            0x10081108, 0x10081508, 0x11081108, 0x11081508,
+            0x10081108, 0x10081508, 0x11081108, 0x11081508
+        );
+
+        $keys = array();
+        for ($des_round = 0; $des_round < $this->des_rounds; ++$des_round) {
+            // pad the key and remove extra characters as appropriate.
+            $key = str_pad(substr($this->key, $des_round * 8, 8), 8, "\0");
+
+            // Perform the PC/1 transformation and compute C and D.
+            $t = unpack('Nl/Nr', $key);
+            list($l, $r) = array($t['l'], $t['r']);
+            $key = ($this->shuffle[$pc1map[ $r        & 0xFF]] & "\x80\x80\x80\x80\x80\x80\x80\x00") |
+                   ($this->shuffle[$pc1map[($r >>  8) & 0xFF]] & "\x40\x40\x40\x40\x40\x40\x40\x00") |
+                   ($this->shuffle[$pc1map[($r >> 16) & 0xFF]] & "\x20\x20\x20\x20\x20\x20\x20\x00") |
+                   ($this->shuffle[$pc1map[($r >> 24) & 0xFF]] & "\x10\x10\x10\x10\x10\x10\x10\x00") |
+                   ($this->shuffle[$pc1map[ $l        & 0xFF]] & "\x08\x08\x08\x08\x08\x08\x08\x00") |
+                   ($this->shuffle[$pc1map[($l >>  8) & 0xFF]] & "\x04\x04\x04\x04\x04\x04\x04\x00") |
+                   ($this->shuffle[$pc1map[($l >> 16) & 0xFF]] & "\x02\x02\x02\x02\x02\x02\x02\x00") |
+                   ($this->shuffle[$pc1map[($l >> 24) & 0xFF]] & "\x01\x01\x01\x01\x01\x01\x01\x00");
+            $key = unpack('Nc/Nd', $key);
+            $c = ( $key['c'] >> 4) & 0x0FFFFFFF;
+            $d = (($key['d'] >> 4) & 0x0FFFFFF0) | ($key['c'] & 0x0F);
+
+            $keys[$des_round] = array(
+                self::ENCRYPT => array(),
+                self::DECRYPT => array_fill(0, 32, 0)
+            );
+            for ($i = 0, $ki = 31; $i < 16; ++$i, $ki-= 2) {
+                $c <<= $shifts[$i];
+                $c = ($c | ($c >> 28)) & 0x0FFFFFFF;
+                $d <<= $shifts[$i];
+                $d = ($d | ($d >> 28)) & 0x0FFFFFFF;
+
+                // Perform the PC-2 transformation.
+                $cp = $pc2mapc1[ $c >> 24        ] | $pc2mapc2[($c >> 16) & 0xFF] |
+                      $pc2mapc3[($c >>  8) & 0xFF] | $pc2mapc4[ $c        & 0xFF];
+                $dp = $pc2mapd1[ $d >> 24        ] | $pc2mapd2[($d >> 16) & 0xFF] |
+                      $pc2mapd3[($d >>  8) & 0xFF] | $pc2mapd4[ $d        & 0xFF];
+
+                // Reorder: odd bytes/even bytes. Push the result in key schedule.
+                $val1 = ( $cp        & 0xFF000000) | (($cp <<  8) & 0x00FF0000) |
+                        (($dp >> 16) & 0x0000FF00) | (($dp >>  8) & 0x000000FF);
+                $val2 = (($cp <<  8) & 0xFF000000) | (($cp << 16) & 0x00FF0000) |
+                        (($dp >>  8) & 0x0000FF00) | ( $dp        & 0x000000FF);
+                $keys[$des_round][self::ENCRYPT][       ] = $val1;
+                $keys[$des_round][self::DECRYPT][$ki - 1] = $val1;
+                $keys[$des_round][self::ENCRYPT][       ] = $val2;
+                $keys[$des_round][self::DECRYPT][$ki    ] = $val2;
+            }
+        }
+
+        switch ($this->des_rounds) {
+            case 3: // 3DES keys
+                $this->keys = array(
+                    self::ENCRYPT => array_merge(
+                        $keys[0][self::ENCRYPT],
+                        $keys[1][self::DECRYPT],
+                        $keys[2][self::ENCRYPT]
+                    ),
+                    self::DECRYPT => array_merge(
+                        $keys[2][self::DECRYPT],
+                        $keys[1][self::ENCRYPT],
+                        $keys[0][self::DECRYPT]
+                    )
+                );
+                break;
+            // case 1: // DES keys
+            default:
+                $this->keys = array(
+                    self::ENCRYPT => $keys[0][self::ENCRYPT],
+                    self::DECRYPT => $keys[0][self::DECRYPT]
+                );
+        }
+    }
+
+    /**
+     * Setup the performance-optimized function for de/encrypt()
+     *
+     * @see \phpseclib\Crypt\Base::_setupInlineCrypt()
+     * @access private
+     */
+    function _setupInlineCrypt()
+    {
+        $lambda_functions =& self::_getLambdaFunctions();
+
+        // Engine configuration for:
+        // -  DES ($des_rounds == 1) or
+        // - 3DES ($des_rounds == 3)
+        $des_rounds = $this->des_rounds;
+
+        // We create max. 10 hi-optimized code for memory reason. Means: For each $key one ultra fast inline-crypt function.
+        // (Currently, for DES, one generated $lambda_function cost on php5.5@32bit ~135kb unfreeable mem and ~230kb on php5.5@64bit)
+        // (Currently, for TripleDES, one generated $lambda_function cost on php5.5@32bit ~240kb unfreeable mem and ~340kb on php5.5@64bit)
+        // After that, we'll still create very fast optimized code but not the hi-ultimative code, for each $mode one
+        $gen_hi_opt_code = (bool)( count($lambda_functions) < 10 );
+
+        // Generation of a unique hash for our generated code
+        $code_hash = "Crypt_DES, $des_rounds, {$this->mode}";
+        if ($gen_hi_opt_code) {
+            // For hi-optimized code, we create for each combination of
+            // $mode, $des_rounds and $this->key its own encrypt/decrypt function.
+            // After max 10 hi-optimized functions, we create generic
+            // (still very fast.. but not ultra) functions for each $mode/$des_rounds
+            // Currently 2 * 5 generic functions will be then max. possible.
+            $code_hash = str_pad($code_hash, 32) . $this->_hashInlineCryptFunction($this->key);
+        }
+
+        // Is there a re-usable $lambda_functions in there? If not, we have to create it.
+        if (!isset($lambda_functions[$code_hash])) {
+            // Init code for both, encrypt and decrypt.
+            $init_crypt = 'static $sbox1, $sbox2, $sbox3, $sbox4, $sbox5, $sbox6, $sbox7, $sbox8, $shuffleip, $shuffleinvip;
+                if (!$sbox1) {
+                    $sbox1 = array_map("intval", $self->sbox1);
+                    $sbox2 = array_map("intval", $self->sbox2);
+                    $sbox3 = array_map("intval", $self->sbox3);
+                    $sbox4 = array_map("intval", $self->sbox4);
+                    $sbox5 = array_map("intval", $self->sbox5);
+                    $sbox6 = array_map("intval", $self->sbox6);
+                    $sbox7 = array_map("intval", $self->sbox7);
+                    $sbox8 = array_map("intval", $self->sbox8);'
+                    /* Merge $shuffle with $[inv]ipmap */ . '
+                    for ($i = 0; $i < 256; ++$i) {
+                        $shuffleip[]    =  $self->shuffle[$self->ipmap[$i]];
+                        $shuffleinvip[] =  $self->shuffle[$self->invipmap[$i]];
+                    }
+                }
+            ';
+
+            switch (true) {
+                case $gen_hi_opt_code:
+                    // In Hi-optimized code mode, we use our [3]DES key schedule as hardcoded integers.
+                    // No futher initialisation of the $keys schedule is necessary.
+                    // That is the extra performance boost.
+                    $k = array(
+                        self::ENCRYPT => $this->keys[self::ENCRYPT],
+                        self::DECRYPT => $this->keys[self::DECRYPT]
+                    );
+                    $init_encrypt = '';
+                    $init_decrypt = '';
+                    break;
+                default:
+                    // In generic optimized code mode, we have to use, as the best compromise [currently],
+                    // our key schedule as $ke/$kd arrays. (with hardcoded indexes...)
+                    $k = array(
+                        self::ENCRYPT => array(),
+                        self::DECRYPT => array()
+                    );
+                    for ($i = 0, $c = count($this->keys[self::ENCRYPT]); $i < $c; ++$i) {
+                        $k[self::ENCRYPT][$i] = '$ke[' . $i . ']';
+                        $k[self::DECRYPT][$i] = '$kd[' . $i . ']';
+                    }
+                    $init_encrypt = '$ke = $self->keys[$self::ENCRYPT];';
+                    $init_decrypt = '$kd = $self->keys[$self::DECRYPT];';
+                    break;
+            }
+
+            // Creating code for en- and decryption.
+            $crypt_block = array();
+            foreach (array(self::ENCRYPT, self::DECRYPT) as $c) {
+                /* Do the initial IP permutation. */
+                $crypt_block[$c] = '
+                    $in = unpack("N*", $in);
+                    $l  = $in[1];
+                    $r  = $in[2];
+                    $in = unpack("N*",
+                        ($shuffleip[ $r        & 0xFF] & "\x80\x80\x80\x80\x80\x80\x80\x80") |
+                        ($shuffleip[($r >>  8) & 0xFF] & "\x40\x40\x40\x40\x40\x40\x40\x40") |
+                        ($shuffleip[($r >> 16) & 0xFF] & "\x20\x20\x20\x20\x20\x20\x20\x20") |
+                        ($shuffleip[($r >> 24) & 0xFF] & "\x10\x10\x10\x10\x10\x10\x10\x10") |
+                        ($shuffleip[ $l        & 0xFF] & "\x08\x08\x08\x08\x08\x08\x08\x08") |
+                        ($shuffleip[($l >>  8) & 0xFF] & "\x04\x04\x04\x04\x04\x04\x04\x04") |
+                        ($shuffleip[($l >> 16) & 0xFF] & "\x02\x02\x02\x02\x02\x02\x02\x02") |
+                        ($shuffleip[($l >> 24) & 0xFF] & "\x01\x01\x01\x01\x01\x01\x01\x01")
+                    );
+                    ' . /* Extract L0 and R0 */ '
+                    $l = $in[1];
+                    $r = $in[2];
+                ';
+
+                $l = '$l';
+                $r = '$r';
+
+                // Perform DES or 3DES.
+                for ($ki = -1, $des_round = 0; $des_round < $des_rounds; ++$des_round) {
+                    // Perform the 16 steps.
+                    for ($i = 0; $i < 16; ++$i) {
+                        // start of "the Feistel (F) function" - see the following URL:
+                        // http://en.wikipedia.org/wiki/Image:Data_Encryption_Standard_InfoBox_Diagram.png
+                        // Merge key schedule.
+                        $crypt_block[$c].= '
+                            $b1 = ((' . $r . ' >>  3) & 0x1FFFFFFF)  ^ (' . $r . ' << 29) ^ ' . $k[$c][++$ki] . ';
+                            $b2 = ((' . $r . ' >> 31) & 0x00000001)  ^ (' . $r . ' <<  1) ^ ' . $k[$c][++$ki] . ';' .
+                            /* S-box indexing. */
+                            $l . ' = $sbox1[($b1 >> 24) & 0x3F] ^ $sbox2[($b2 >> 24) & 0x3F] ^
+                                     $sbox3[($b1 >> 16) & 0x3F] ^ $sbox4[($b2 >> 16) & 0x3F] ^
+                                     $sbox5[($b1 >>  8) & 0x3F] ^ $sbox6[($b2 >>  8) & 0x3F] ^
+                                     $sbox7[ $b1        & 0x3F] ^ $sbox8[ $b2        & 0x3F] ^ ' . $l . ';
+                        ';
+                        // end of "the Feistel (F) function"
+
+                        // swap L & R
+                        list($l, $r) = array($r, $l);
+                    }
+                    list($l, $r) = array($r, $l);
+                }
+
+                // Perform the inverse IP permutation.
+                $crypt_block[$c].= '$in =
+                    ($shuffleinvip[($l >> 24) & 0xFF] & "\x80\x80\x80\x80\x80\x80\x80\x80") |
+                    ($shuffleinvip[($r >> 24) & 0xFF] & "\x40\x40\x40\x40\x40\x40\x40\x40") |
+                    ($shuffleinvip[($l >> 16) & 0xFF] & "\x20\x20\x20\x20\x20\x20\x20\x20") |
+                    ($shuffleinvip[($r >> 16) & 0xFF] & "\x10\x10\x10\x10\x10\x10\x10\x10") |
+                    ($shuffleinvip[($l >>  8) & 0xFF] & "\x08\x08\x08\x08\x08\x08\x08\x08") |
+                    ($shuffleinvip[($r >>  8) & 0xFF] & "\x04\x04\x04\x04\x04\x04\x04\x04") |
+                    ($shuffleinvip[ $l        & 0xFF] & "\x02\x02\x02\x02\x02\x02\x02\x02") |
+                    ($shuffleinvip[ $r        & 0xFF] & "\x01\x01\x01\x01\x01\x01\x01\x01");
+                ';
+            }
+
+            // Creates the inline-crypt function
+            $lambda_functions[$code_hash] = $this->_createInlineCryptFunction(
+                array(
+                   'init_crypt'    => $init_crypt,
+                   'init_encrypt'  => $init_encrypt,
+                   'init_decrypt'  => $init_decrypt,
+                   'encrypt_block' => $crypt_block[self::ENCRYPT],
+                   'decrypt_block' => $crypt_block[self::DECRYPT]
+                )
+            );
+        }
+
+        // Set the inline-crypt function as callback in: $this->inline_crypt
+        $this->inline_crypt = $lambda_functions[$code_hash];
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Hash.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Hash.php
new file mode 100644
index 0000000..6ae0132
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Hash.php
@@ -0,0 +1,829 @@
+<?php
+
+/**
+ * Pure-PHP implementations of keyed-hash message authentication codes (HMACs) and various cryptographic hashing functions.
+ *
+ * Uses hash() or mhash() if available and an internal implementation, otherwise.  Currently supports the following:
+ *
+ * md2, md5, md5-96, sha1, sha1-96, sha256, sha256-96, sha384, and sha512, sha512-96
+ *
+ * If {@link self::setKey() setKey()} is called, {@link self::hash() hash()} will return the HMAC as opposed to
+ * the hash.  If no valid algorithm is provided, sha1 will be used.
+ *
+ * PHP version 5
+ *
+ * {@internal The variable names are the same as those in
+ * {@link http://tools.ietf.org/html/rfc2104#section-2 RFC2104}.}}
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $hash = new \phpseclib\Crypt\Hash('sha1');
+ *
+ *    $hash->setKey('abcdefg');
+ *
+ *    echo base64_encode($hash->hash('abcdefg'));
+ * ?>
+ * </code>
+ *
+ * @category  Crypt
+ * @package   Hash
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2007 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+use phpseclib\Math\BigInteger;
+
+/**
+ * Pure-PHP implementations of keyed-hash message authentication codes (HMACs) and various cryptographic hashing functions.
+ *
+ * @package Hash
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @access  public
+ */
+class Hash
+{
+    /**#@+
+     * @access private
+     * @see \phpseclib\Crypt\Hash::__construct()
+     */
+    /**
+     * Toggles the internal implementation
+     */
+    const MODE_INTERNAL = 1;
+    /**
+     * Toggles the mhash() implementation, which has been deprecated on PHP 5.3.0+.
+     */
+    const MODE_MHASH = 2;
+    /**
+     * Toggles the hash() implementation, which works on PHP 5.1.2+.
+     */
+    const MODE_HASH = 3;
+    /**#@-*/
+
+    /**
+     * Hash Parameter
+     *
+     * @see self::setHash()
+     * @var int
+     * @access private
+     */
+    var $hashParam;
+
+    /**
+     * Byte-length of compression blocks / key (Internal HMAC)
+     *
+     * @see self::setAlgorithm()
+     * @var int
+     * @access private
+     */
+    var $b;
+
+    /**
+     * Byte-length of hash output (Internal HMAC)
+     *
+     * @see self::setHash()
+     * @var int
+     * @access private
+     */
+    var $l = false;
+
+    /**
+     * Hash Algorithm
+     *
+     * @see self::setHash()
+     * @var string
+     * @access private
+     */
+    var $hash;
+
+    /**
+     * Key
+     *
+     * @see self::setKey()
+     * @var string
+     * @access private
+     */
+    var $key = false;
+
+    /**
+     * Outer XOR (Internal HMAC)
+     *
+     * @see self::setKey()
+     * @var string
+     * @access private
+     */
+    var $opad;
+
+    /**
+     * Inner XOR (Internal HMAC)
+     *
+     * @see self::setKey()
+     * @var string
+     * @access private
+     */
+    var $ipad;
+
+    /**
+     * Default Constructor.
+     *
+     * @param string $hash
+     * @return \phpseclib\Crypt\Hash
+     * @access public
+     */
+    function __construct($hash = 'sha1')
+    {
+        if (!defined('CRYPT_HASH_MODE')) {
+            switch (true) {
+                case extension_loaded('hash'):
+                    define('CRYPT_HASH_MODE', self::MODE_HASH);
+                    break;
+                case extension_loaded('mhash'):
+                    define('CRYPT_HASH_MODE', self::MODE_MHASH);
+                    break;
+                default:
+                    define('CRYPT_HASH_MODE', self::MODE_INTERNAL);
+            }
+        }
+
+        $this->setHash($hash);
+    }
+
+    /**
+     * Sets the key for HMACs
+     *
+     * Keys can be of any length.
+     *
+     * @access public
+     * @param string $key
+     */
+    function setKey($key = false)
+    {
+        $this->key = $key;
+    }
+
+    /**
+     * Gets the hash function.
+     *
+     * As set by the constructor or by the setHash() method.
+     *
+     * @access public
+     * @return string
+     */
+    function getHash()
+    {
+        return $this->hashParam;
+    }
+
+    /**
+     * Sets the hash function.
+     *
+     * @access public
+     * @param string $hash
+     */
+    function setHash($hash)
+    {
+        $this->hashParam = $hash = strtolower($hash);
+        switch ($hash) {
+            case 'md5-96':
+            case 'sha1-96':
+            case 'sha256-96':
+            case 'sha512-96':
+                $hash = substr($hash, 0, -3);
+                $this->l = 12; // 96 / 8 = 12
+                break;
+            case 'md2':
+            case 'md5':
+                $this->l = 16;
+                break;
+            case 'sha1':
+                $this->l = 20;
+                break;
+            case 'sha256':
+                $this->l = 32;
+                break;
+            case 'sha384':
+                $this->l = 48;
+                break;
+            case 'sha512':
+                $this->l = 64;
+        }
+
+        switch ($hash) {
+            case 'md2':
+                $mode = CRYPT_HASH_MODE == self::MODE_HASH && in_array('md2', hash_algos()) ?
+                    self::MODE_HASH : self::MODE_INTERNAL;
+                break;
+            case 'sha384':
+            case 'sha512':
+                $mode = CRYPT_HASH_MODE == self::MODE_MHASH ? self::MODE_INTERNAL : CRYPT_HASH_MODE;
+                break;
+            default:
+                $mode = CRYPT_HASH_MODE;
+        }
+
+        switch ($mode) {
+            case self::MODE_MHASH:
+                switch ($hash) {
+                    case 'md5':
+                        $this->hash = MHASH_MD5;
+                        break;
+                    case 'sha256':
+                        $this->hash = MHASH_SHA256;
+                        break;
+                    case 'sha1':
+                    default:
+                        $this->hash = MHASH_SHA1;
+                }
+                return;
+            case self::MODE_HASH:
+                switch ($hash) {
+                    case 'md5':
+                        $this->hash = 'md5';
+                        return;
+                    case 'md2':
+                    case 'sha256':
+                    case 'sha384':
+                    case 'sha512':
+                        $this->hash = $hash;
+                        return;
+                    case 'sha1':
+                    default:
+                        $this->hash = 'sha1';
+                }
+                return;
+        }
+
+        switch ($hash) {
+            case 'md2':
+                $this->b = 16;
+                $this->hash = array($this, '_md2');
+                break;
+            case 'md5':
+                $this->b = 64;
+                $this->hash = array($this, '_md5');
+                break;
+            case 'sha256':
+                $this->b = 64;
+                $this->hash = array($this, '_sha256');
+                break;
+            case 'sha384':
+            case 'sha512':
+                $this->b = 128;
+                $this->hash = array($this, '_sha512');
+                break;
+            case 'sha1':
+            default:
+                $this->b = 64;
+                $this->hash = array($this, '_sha1');
+        }
+
+        $this->ipad = str_repeat(chr(0x36), $this->b);
+        $this->opad = str_repeat(chr(0x5C), $this->b);
+    }
+
+    /**
+     * Compute the HMAC.
+     *
+     * @access public
+     * @param string $text
+     * @return string
+     */
+    function hash($text)
+    {
+        $mode = is_array($this->hash) ? self::MODE_INTERNAL : CRYPT_HASH_MODE;
+
+        if (!empty($this->key) || is_string($this->key)) {
+            switch ($mode) {
+                case self::MODE_MHASH:
+                    $output = mhash($this->hash, $text, $this->key);
+                    break;
+                case self::MODE_HASH:
+                    $output = hash_hmac($this->hash, $text, $this->key, true);
+                    break;
+                case self::MODE_INTERNAL:
+                    /* "Applications that use keys longer than B bytes will first hash the key using H and then use the
+                        resultant L byte string as the actual key to HMAC."
+
+                        -- http://tools.ietf.org/html/rfc2104#section-2 */
+                    $key = strlen($this->key) > $this->b ? call_user_func($this->hash, $this->key) : $this->key;
+
+                    $key    = str_pad($key, $this->b, chr(0));      // step 1
+                    $temp   = $this->ipad ^ $key;                   // step 2
+                    $temp  .= $text;                                // step 3
+                    $temp   = call_user_func($this->hash, $temp);   // step 4
+                    $output = $this->opad ^ $key;                   // step 5
+                    $output.= $temp;                                // step 6
+                    $output = call_user_func($this->hash, $output); // step 7
+            }
+        } else {
+            switch ($mode) {
+                case self::MODE_MHASH:
+                    $output = mhash($this->hash, $text);
+                    break;
+                case self::MODE_HASH:
+                    $output = hash($this->hash, $text, true);
+                    break;
+                case self::MODE_INTERNAL:
+                    $output = call_user_func($this->hash, $text);
+            }
+        }
+
+        return substr($output, 0, $this->l);
+    }
+
+    /**
+     * Returns the hash length (in bytes)
+     *
+     * @access public
+     * @return int
+     */
+    function getLength()
+    {
+        return $this->l;
+    }
+
+    /**
+     * Wrapper for MD5
+     *
+     * @access private
+     * @param string $m
+     */
+    function _md5($m)
+    {
+        return pack('H*', md5($m));
+    }
+
+    /**
+     * Wrapper for SHA1
+     *
+     * @access private
+     * @param string $m
+     */
+    function _sha1($m)
+    {
+        return pack('H*', sha1($m));
+    }
+
+    /**
+     * Pure-PHP implementation of MD2
+     *
+     * See {@link http://tools.ietf.org/html/rfc1319 RFC1319}.
+     *
+     * @access private
+     * @param string $m
+     */
+    function _md2($m)
+    {
+        static $s = array(
+             41,  46,  67, 201, 162, 216, 124,   1,  61,  54,  84, 161, 236, 240, 6,
+             19,  98, 167,   5, 243, 192, 199, 115, 140, 152, 147,  43, 217, 188,
+             76, 130, 202,  30, 155,  87,  60, 253, 212, 224,  22, 103,  66, 111, 24,
+            138,  23, 229,  18, 190,  78, 196, 214, 218, 158, 222,  73, 160, 251,
+            245, 142, 187,  47, 238, 122, 169, 104, 121, 145,  21, 178,   7,  63,
+            148, 194,  16, 137,  11,  34,  95,  33, 128, 127,  93, 154,  90, 144, 50,
+             39,  53,  62, 204, 231, 191, 247, 151,   3, 255,  25,  48, 179,  72, 165,
+            181, 209, 215,  94, 146,  42, 172,  86, 170, 198,  79, 184,  56, 210,
+            150, 164, 125, 182, 118, 252, 107, 226, 156, 116,   4, 241,  69, 157,
+            112,  89, 100, 113, 135,  32, 134,  91, 207, 101, 230,  45, 168,   2, 27,
+             96,  37, 173, 174, 176, 185, 246,  28,  70,  97, 105,  52,  64, 126, 15,
+             85,  71, 163,  35, 221,  81, 175,  58, 195,  92, 249, 206, 186, 197,
+            234,  38,  44,  83,  13, 110, 133,  40, 132,   9, 211, 223, 205, 244, 65,
+            129,  77,  82, 106, 220,  55, 200, 108, 193, 171, 250,  36, 225, 123,
+              8,  12, 189, 177,  74, 120, 136, 149, 139, 227,  99, 232, 109, 233,
+            203, 213, 254,  59,   0,  29,  57, 242, 239, 183,  14, 102,  88, 208, 228,
+            166, 119, 114, 248, 235, 117,  75,  10,  49,  68,  80, 180, 143, 237,
+             31,  26, 219, 153, 141,  51, 159,  17, 131, 20
+        );
+
+        // Step 1. Append Padding Bytes
+        $pad = 16 - (strlen($m) & 0xF);
+        $m.= str_repeat(chr($pad), $pad);
+
+        $length = strlen($m);
+
+        // Step 2. Append Checksum
+        $c = str_repeat(chr(0), 16);
+        $l = chr(0);
+        for ($i = 0; $i < $length; $i+= 16) {
+            for ($j = 0; $j < 16; $j++) {
+                // RFC1319 incorrectly states that C[j] should be set to S[c xor L]
+                //$c[$j] = chr($s[ord($m[$i + $j] ^ $l)]);
+                // per <http://www.rfc-editor.org/errata_search.php?rfc=1319>, however, C[j] should be set to S[c xor L] xor C[j]
+                $c[$j] = chr($s[ord($m[$i + $j] ^ $l)] ^ ord($c[$j]));
+                $l = $c[$j];
+            }
+        }
+        $m.= $c;
+
+        $length+= 16;
+
+        // Step 3. Initialize MD Buffer
+        $x = str_repeat(chr(0), 48);
+
+        // Step 4. Process Message in 16-Byte Blocks
+        for ($i = 0; $i < $length; $i+= 16) {
+            for ($j = 0; $j < 16; $j++) {
+                $x[$j + 16] = $m[$i + $j];
+                $x[$j + 32] = $x[$j + 16] ^ $x[$j];
+            }
+            $t = chr(0);
+            for ($j = 0; $j < 18; $j++) {
+                for ($k = 0; $k < 48; $k++) {
+                    $x[$k] = $t = $x[$k] ^ chr($s[ord($t)]);
+                    //$t = $x[$k] = $x[$k] ^ chr($s[ord($t)]);
+                }
+                $t = chr(ord($t) + $j);
+            }
+        }
+
+        // Step 5. Output
+        return substr($x, 0, 16);
+    }
+
+    /**
+     * Pure-PHP implementation of SHA256
+     *
+     * See {@link http://en.wikipedia.org/wiki/SHA_hash_functions#SHA-256_.28a_SHA-2_variant.29_pseudocode SHA-256 (a SHA-2 variant) pseudocode - Wikipedia}.
+     *
+     * @access private
+     * @param string $m
+     */
+    function _sha256($m)
+    {
+        if (extension_loaded('suhosin')) {
+            return pack('H*', sha256($m));
+        }
+
+        // Initialize variables
+        $hash = array(
+            0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
+        );
+        // Initialize table of round constants
+        // (first 32 bits of the fractional parts of the cube roots of the first 64 primes 2..311)
+        static $k = array(
+            0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+            0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+            0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+            0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+            0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+            0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+            0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+            0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
+        );
+
+        // Pre-processing
+        $length = strlen($m);
+        // to round to nearest 56 mod 64, we'll add 64 - (length + (64 - 56)) % 64
+        $m.= str_repeat(chr(0), 64 - (($length + 8) & 0x3F));
+        $m[$length] = chr(0x80);
+        // we don't support hashing strings 512MB long
+        $m.= pack('N2', 0, $length << 3);
+
+        // Process the message in successive 512-bit chunks
+        $chunks = str_split($m, 64);
+        foreach ($chunks as $chunk) {
+            $w = array();
+            for ($i = 0; $i < 16; $i++) {
+                extract(unpack('Ntemp', $this->_string_shift($chunk, 4)));
+                $w[] = $temp;
+            }
+
+            // Extend the sixteen 32-bit words into sixty-four 32-bit words
+            for ($i = 16; $i < 64; $i++) {
+                // @codingStandardsIgnoreStart
+                $s0 = $this->_rightRotate($w[$i - 15],  7) ^
+                      $this->_rightRotate($w[$i - 15], 18) ^
+                      $this->_rightShift( $w[$i - 15],  3);
+                $s1 = $this->_rightRotate($w[$i - 2], 17) ^
+                      $this->_rightRotate($w[$i - 2], 19) ^
+                      $this->_rightShift( $w[$i - 2], 10);
+                // @codingStandardsIgnoreEnd
+                $w[$i] = $this->_add($w[$i - 16], $s0, $w[$i - 7], $s1);
+            }
+
+            // Initialize hash value for this chunk
+            list($a, $b, $c, $d, $e, $f, $g, $h) = $hash;
+
+            // Main loop
+            for ($i = 0; $i < 64; $i++) {
+                $s0 = $this->_rightRotate($a,  2) ^
+                      $this->_rightRotate($a, 13) ^
+                      $this->_rightRotate($a, 22);
+                $maj = ($a & $b) ^
+                       ($a & $c) ^
+                       ($b & $c);
+                $t2 = $this->_add($s0, $maj);
+
+                $s1 = $this->_rightRotate($e,  6) ^
+                      $this->_rightRotate($e, 11) ^
+                      $this->_rightRotate($e, 25);
+                $ch = ($e & $f) ^
+                      ($this->_not($e) & $g);
+                $t1 = $this->_add($h, $s1, $ch, $k[$i], $w[$i]);
+
+                $h = $g;
+                $g = $f;
+                $f = $e;
+                $e = $this->_add($d, $t1);
+                $d = $c;
+                $c = $b;
+                $b = $a;
+                $a = $this->_add($t1, $t2);
+            }
+
+            // Add this chunk's hash to result so far
+            $hash = array(
+                $this->_add($hash[0], $a),
+                $this->_add($hash[1], $b),
+                $this->_add($hash[2], $c),
+                $this->_add($hash[3], $d),
+                $this->_add($hash[4], $e),
+                $this->_add($hash[5], $f),
+                $this->_add($hash[6], $g),
+                $this->_add($hash[7], $h)
+            );
+        }
+
+        // Produce the final hash value (big-endian)
+        return pack('N8', $hash[0], $hash[1], $hash[2], $hash[3], $hash[4], $hash[5], $hash[6], $hash[7]);
+    }
+
+    /**
+     * Pure-PHP implementation of SHA384 and SHA512
+     *
+     * @access private
+     * @param string $m
+     */
+    function _sha512($m)
+    {
+        static $init384, $init512, $k;
+
+        if (!isset($k)) {
+            // Initialize variables
+            $init384 = array( // initial values for SHA384
+                'cbbb9d5dc1059ed8', '629a292a367cd507', '9159015a3070dd17', '152fecd8f70e5939',
+                '67332667ffc00b31', '8eb44a8768581511', 'db0c2e0d64f98fa7', '47b5481dbefa4fa4'
+            );
+            $init512 = array( // initial values for SHA512
+                '6a09e667f3bcc908', 'bb67ae8584caa73b', '3c6ef372fe94f82b', 'a54ff53a5f1d36f1',
+                '510e527fade682d1', '9b05688c2b3e6c1f', '1f83d9abfb41bd6b', '5be0cd19137e2179'
+            );
+
+            for ($i = 0; $i < 8; $i++) {
+                $init384[$i] = new BigInteger($init384[$i], 16);
+                $init384[$i]->setPrecision(64);
+                $init512[$i] = new BigInteger($init512[$i], 16);
+                $init512[$i]->setPrecision(64);
+            }
+
+            // Initialize table of round constants
+            // (first 64 bits of the fractional parts of the cube roots of the first 80 primes 2..409)
+            $k = array(
+                '428a2f98d728ae22', '7137449123ef65cd', 'b5c0fbcfec4d3b2f', 'e9b5dba58189dbbc',
+                '3956c25bf348b538', '59f111f1b605d019', '923f82a4af194f9b', 'ab1c5ed5da6d8118',
+                'd807aa98a3030242', '12835b0145706fbe', '243185be4ee4b28c', '550c7dc3d5ffb4e2',
+                '72be5d74f27b896f', '80deb1fe3b1696b1', '9bdc06a725c71235', 'c19bf174cf692694',
+                'e49b69c19ef14ad2', 'efbe4786384f25e3', '0fc19dc68b8cd5b5', '240ca1cc77ac9c65',
+                '2de92c6f592b0275', '4a7484aa6ea6e483', '5cb0a9dcbd41fbd4', '76f988da831153b5',
+                '983e5152ee66dfab', 'a831c66d2db43210', 'b00327c898fb213f', 'bf597fc7beef0ee4',
+                'c6e00bf33da88fc2', 'd5a79147930aa725', '06ca6351e003826f', '142929670a0e6e70',
+                '27b70a8546d22ffc', '2e1b21385c26c926', '4d2c6dfc5ac42aed', '53380d139d95b3df',
+                '650a73548baf63de', '766a0abb3c77b2a8', '81c2c92e47edaee6', '92722c851482353b',
+                'a2bfe8a14cf10364', 'a81a664bbc423001', 'c24b8b70d0f89791', 'c76c51a30654be30',
+                'd192e819d6ef5218', 'd69906245565a910', 'f40e35855771202a', '106aa07032bbd1b8',
+                '19a4c116b8d2d0c8', '1e376c085141ab53', '2748774cdf8eeb99', '34b0bcb5e19b48a8',
+                '391c0cb3c5c95a63', '4ed8aa4ae3418acb', '5b9cca4f7763e373', '682e6ff3d6b2b8a3',
+                '748f82ee5defb2fc', '78a5636f43172f60', '84c87814a1f0ab72', '8cc702081a6439ec',
+                '90befffa23631e28', 'a4506cebde82bde9', 'bef9a3f7b2c67915', 'c67178f2e372532b',
+                'ca273eceea26619c', 'd186b8c721c0c207', 'eada7dd6cde0eb1e', 'f57d4f7fee6ed178',
+                '06f067aa72176fba', '0a637dc5a2c898a6', '113f9804bef90dae', '1b710b35131c471b',
+                '28db77f523047d84', '32caab7b40c72493', '3c9ebe0a15c9bebc', '431d67c49c100d4c',
+                '4cc5d4becb3e42b6', '597f299cfc657e2a', '5fcb6fab3ad6faec', '6c44198c4a475817'
+            );
+
+            for ($i = 0; $i < 80; $i++) {
+                $k[$i] = new BigInteger($k[$i], 16);
+            }
+        }
+
+        $hash = $this->l == 48 ? $init384 : $init512;
+
+        // Pre-processing
+        $length = strlen($m);
+        // to round to nearest 112 mod 128, we'll add 128 - (length + (128 - 112)) % 128
+        $m.= str_repeat(chr(0), 128 - (($length + 16) & 0x7F));
+        $m[$length] = chr(0x80);
+        // we don't support hashing strings 512MB long
+        $m.= pack('N4', 0, 0, 0, $length << 3);
+
+        // Process the message in successive 1024-bit chunks
+        $chunks = str_split($m, 128);
+        foreach ($chunks as $chunk) {
+            $w = array();
+            for ($i = 0; $i < 16; $i++) {
+                $temp = new BigInteger($this->_string_shift($chunk, 8), 256);
+                $temp->setPrecision(64);
+                $w[] = $temp;
+            }
+
+            // Extend the sixteen 32-bit words into eighty 32-bit words
+            for ($i = 16; $i < 80; $i++) {
+                $temp = array(
+                          $w[$i - 15]->bitwise_rightRotate(1),
+                          $w[$i - 15]->bitwise_rightRotate(8),
+                          $w[$i - 15]->bitwise_rightShift(7)
+                );
+                $s0 = $temp[0]->bitwise_xor($temp[1]);
+                $s0 = $s0->bitwise_xor($temp[2]);
+                $temp = array(
+                          $w[$i - 2]->bitwise_rightRotate(19),
+                          $w[$i - 2]->bitwise_rightRotate(61),
+                          $w[$i - 2]->bitwise_rightShift(6)
+                );
+                $s1 = $temp[0]->bitwise_xor($temp[1]);
+                $s1 = $s1->bitwise_xor($temp[2]);
+                $w[$i] = $w[$i - 16]->copy();
+                $w[$i] = $w[$i]->add($s0);
+                $w[$i] = $w[$i]->add($w[$i - 7]);
+                $w[$i] = $w[$i]->add($s1);
+            }
+
+            // Initialize hash value for this chunk
+            $a = $hash[0]->copy();
+            $b = $hash[1]->copy();
+            $c = $hash[2]->copy();
+            $d = $hash[3]->copy();
+            $e = $hash[4]->copy();
+            $f = $hash[5]->copy();
+            $g = $hash[6]->copy();
+            $h = $hash[7]->copy();
+
+            // Main loop
+            for ($i = 0; $i < 80; $i++) {
+                $temp = array(
+                    $a->bitwise_rightRotate(28),
+                    $a->bitwise_rightRotate(34),
+                    $a->bitwise_rightRotate(39)
+                );
+                $s0 = $temp[0]->bitwise_xor($temp[1]);
+                $s0 = $s0->bitwise_xor($temp[2]);
+                $temp = array(
+                    $a->bitwise_and($b),
+                    $a->bitwise_and($c),
+                    $b->bitwise_and($c)
+                );
+                $maj = $temp[0]->bitwise_xor($temp[1]);
+                $maj = $maj->bitwise_xor($temp[2]);
+                $t2 = $s0->add($maj);
+
+                $temp = array(
+                    $e->bitwise_rightRotate(14),
+                    $e->bitwise_rightRotate(18),
+                    $e->bitwise_rightRotate(41)
+                );
+                $s1 = $temp[0]->bitwise_xor($temp[1]);
+                $s1 = $s1->bitwise_xor($temp[2]);
+                $temp = array(
+                    $e->bitwise_and($f),
+                    $g->bitwise_and($e->bitwise_not())
+                );
+                $ch = $temp[0]->bitwise_xor($temp[1]);
+                $t1 = $h->add($s1);
+                $t1 = $t1->add($ch);
+                $t1 = $t1->add($k[$i]);
+                $t1 = $t1->add($w[$i]);
+
+                $h = $g->copy();
+                $g = $f->copy();
+                $f = $e->copy();
+                $e = $d->add($t1);
+                $d = $c->copy();
+                $c = $b->copy();
+                $b = $a->copy();
+                $a = $t1->add($t2);
+            }
+
+            // Add this chunk's hash to result so far
+            $hash = array(
+                $hash[0]->add($a),
+                $hash[1]->add($b),
+                $hash[2]->add($c),
+                $hash[3]->add($d),
+                $hash[4]->add($e),
+                $hash[5]->add($f),
+                $hash[6]->add($g),
+                $hash[7]->add($h)
+            );
+        }
+
+        // Produce the final hash value (big-endian)
+        // (\phpseclib\Crypt\Hash::hash() trims the output for hashes but not for HMACs.  as such, we trim the output here)
+        $temp = $hash[0]->toBytes() . $hash[1]->toBytes() . $hash[2]->toBytes() . $hash[3]->toBytes() .
+                $hash[4]->toBytes() . $hash[5]->toBytes();
+        if ($this->l != 48) {
+            $temp.= $hash[6]->toBytes() . $hash[7]->toBytes();
+        }
+
+        return $temp;
+    }
+
+    /**
+     * Right Rotate
+     *
+     * @access private
+     * @param int $int
+     * @param int $amt
+     * @see self::_sha256()
+     * @return int
+     */
+    function _rightRotate($int, $amt)
+    {
+        $invamt = 32 - $amt;
+        $mask = (1 << $invamt) - 1;
+        return (($int << $invamt) & 0xFFFFFFFF) | (($int >> $amt) & $mask);
+    }
+
+    /**
+     * Right Shift
+     *
+     * @access private
+     * @param int $int
+     * @param int $amt
+     * @see self::_sha256()
+     * @return int
+     */
+    function _rightShift($int, $amt)
+    {
+        $mask = (1 << (32 - $amt)) - 1;
+        return ($int >> $amt) & $mask;
+    }
+
+    /**
+     * Not
+     *
+     * @access private
+     * @param int $int
+     * @see self::_sha256()
+     * @return int
+     */
+    function _not($int)
+    {
+        return ~$int & 0xFFFFFFFF;
+    }
+
+    /**
+     * Add
+     *
+     * _sha256() adds multiple unsigned 32-bit integers.  Since PHP doesn't support unsigned integers and since the
+     * possibility of overflow exists, care has to be taken.  BigInteger could be used but this should be faster.
+     *
+     * @param int $...
+     * @return int
+     * @see self::_sha256()
+     * @access private
+     */
+    function _add()
+    {
+        static $mod;
+        if (!isset($mod)) {
+            $mod = pow(2, 32);
+        }
+
+        $result = 0;
+        $arguments = func_get_args();
+        foreach ($arguments as $argument) {
+            $result+= $argument < 0 ? ($argument & 0x7FFFFFFF) + 0x80000000 : $argument;
+        }
+
+        if ((php_uname('m') & "\xDF\xDF\xDF") != 'ARM') {
+            return fmod($result, $mod);
+        }
+
+        return (fmod($result, 0x80000000) & 0x7FFFFFFF) |
+            ((fmod(floor($result / 0x80000000), 2) & 1) << 31);
+    }
+
+    /**
+     * String Shift
+     *
+     * Inspired by array_shift
+     *
+     * @param string $string
+     * @param int $index
+     * @return string
+     * @access private
+     */
+    function _string_shift(&$string, $index = 1)
+    {
+        $substr = substr($string, 0, $index);
+        $string = substr($string, $index);
+        return $substr;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/RC2.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/RC2.php
new file mode 100644
index 0000000..b2b9d48
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/RC2.php
@@ -0,0 +1,688 @@
+<?php
+
+/**
+ * Pure-PHP implementation of RC2.
+ *
+ * Uses mcrypt, if available, and an internal implementation, otherwise.
+ *
+ * PHP version 5
+ *
+ * Useful resources are as follows:
+ *
+ *  - {@link http://tools.ietf.org/html/rfc2268}
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $rc2 = new \phpseclib\Crypt\RC2();
+ *
+ *    $rc2->setKey('abcdefgh');
+ *
+ *    $plaintext = str_repeat('a', 1024);
+ *
+ *    echo $rc2->decrypt($rc2->encrypt($plaintext));
+ * ?>
+ * </code>
+ *
+ * @category Crypt
+ * @package  RC2
+ * @author   Patrick Monnerat <pm@datasphere.ch>
+ * @license  http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link     http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Pure-PHP implementation of RC2.
+ *
+ * @package RC2
+ * @access  public
+ */
+class RC2 extends Base
+{
+    /**
+     * Block Length of the cipher
+     *
+     * @see \phpseclib\Crypt\Base::block_size
+     * @var int
+     * @access private
+     */
+    var $block_size = 8;
+
+    /**
+     * The Key
+     *
+     * @see \phpseclib\Crypt\Base::key
+     * @see self::setKey()
+     * @var string
+     * @access private
+     */
+    var $key;
+
+    /**
+     * The Original (unpadded) Key
+     *
+     * @see \phpseclib\Crypt\Base::key
+     * @see self::setKey()
+     * @see self::encrypt()
+     * @see self::decrypt()
+     * @var string
+     * @access private
+     */
+    var $orig_key;
+
+    /**
+     * Don't truncate / null pad key
+     *
+     * @see \phpseclib\Crypt\Base::_clearBuffers()
+     * @var bool
+     * @access private
+     */
+    var $skip_key_adjustment = true;
+
+    /**
+     * Key Length (in bytes)
+     *
+     * @see \phpseclib\Crypt\RC2::setKeyLength()
+     * @var int
+     * @access private
+     */
+    var $key_length = 16; // = 128 bits
+
+    /**
+     * The mcrypt specific name of the cipher
+     *
+     * @see \phpseclib\Crypt\Base::cipher_name_mcrypt
+     * @var string
+     * @access private
+     */
+    var $cipher_name_mcrypt = 'rc2';
+
+    /**
+     * Optimizing value while CFB-encrypting
+     *
+     * @see \phpseclib\Crypt\Base::cfb_init_len
+     * @var int
+     * @access private
+     */
+    var $cfb_init_len = 500;
+
+    /**
+     * The key length in bits.
+     *
+     * @see self::setKeyLength()
+     * @see self::setKey()
+     * @var int
+     * @access private
+     * @internal Should be in range [1..1024].
+     * @internal Changing this value after setting the key has no effect.
+     */
+    var $default_key_length = 1024;
+
+    /**
+     * The key length in bits.
+     *
+     * @see self::isValidEnine()
+     * @see self::setKey()
+     * @var int
+     * @access private
+     * @internal Should be in range [1..1024].
+     */
+    var $current_key_length;
+
+    /**
+     * The Key Schedule
+     *
+     * @see self::_setupKey()
+     * @var array
+     * @access private
+     */
+    var $keys;
+
+    /**
+     * Key expansion randomization table.
+     * Twice the same 256-value sequence to save a modulus in key expansion.
+     *
+     * @see self::setKey()
+     * @var array
+     * @access private
+     */
+    var $pitable = array(
+        0xD9, 0x78, 0xF9, 0xC4, 0x19, 0xDD, 0xB5, 0xED,
+        0x28, 0xE9, 0xFD, 0x79, 0x4A, 0xA0, 0xD8, 0x9D,
+        0xC6, 0x7E, 0x37, 0x83, 0x2B, 0x76, 0x53, 0x8E,
+        0x62, 0x4C, 0x64, 0x88, 0x44, 0x8B, 0xFB, 0xA2,
+        0x17, 0x9A, 0x59, 0xF5, 0x87, 0xB3, 0x4F, 0x13,
+        0x61, 0x45, 0x6D, 0x8D, 0x09, 0x81, 0x7D, 0x32,
+        0xBD, 0x8F, 0x40, 0xEB, 0x86, 0xB7, 0x7B, 0x0B,
+        0xF0, 0x95, 0x21, 0x22, 0x5C, 0x6B, 0x4E, 0x82,
+        0x54, 0xD6, 0x65, 0x93, 0xCE, 0x60, 0xB2, 0x1C,
+        0x73, 0x56, 0xC0, 0x14, 0xA7, 0x8C, 0xF1, 0xDC,
+        0x12, 0x75, 0xCA, 0x1F, 0x3B, 0xBE, 0xE4, 0xD1,
+        0x42, 0x3D, 0xD4, 0x30, 0xA3, 0x3C, 0xB6, 0x26,
+        0x6F, 0xBF, 0x0E, 0xDA, 0x46, 0x69, 0x07, 0x57,
+        0x27, 0xF2, 0x1D, 0x9B, 0xBC, 0x94, 0x43, 0x03,
+        0xF8, 0x11, 0xC7, 0xF6, 0x90, 0xEF, 0x3E, 0xE7,
+        0x06, 0xC3, 0xD5, 0x2F, 0xC8, 0x66, 0x1E, 0xD7,
+        0x08, 0xE8, 0xEA, 0xDE, 0x80, 0x52, 0xEE, 0xF7,
+        0x84, 0xAA, 0x72, 0xAC, 0x35, 0x4D, 0x6A, 0x2A,
+        0x96, 0x1A, 0xD2, 0x71, 0x5A, 0x15, 0x49, 0x74,
+        0x4B, 0x9F, 0xD0, 0x5E, 0x04, 0x18, 0xA4, 0xEC,
+        0xC2, 0xE0, 0x41, 0x6E, 0x0F, 0x51, 0xCB, 0xCC,
+        0x24, 0x91, 0xAF, 0x50, 0xA1, 0xF4, 0x70, 0x39,
+        0x99, 0x7C, 0x3A, 0x85, 0x23, 0xB8, 0xB4, 0x7A,
+        0xFC, 0x02, 0x36, 0x5B, 0x25, 0x55, 0x97, 0x31,
+        0x2D, 0x5D, 0xFA, 0x98, 0xE3, 0x8A, 0x92, 0xAE,
+        0x05, 0xDF, 0x29, 0x10, 0x67, 0x6C, 0xBA, 0xC9,
+        0xD3, 0x00, 0xE6, 0xCF, 0xE1, 0x9E, 0xA8, 0x2C,
+        0x63, 0x16, 0x01, 0x3F, 0x58, 0xE2, 0x89, 0xA9,
+        0x0D, 0x38, 0x34, 0x1B, 0xAB, 0x33, 0xFF, 0xB0,
+        0xBB, 0x48, 0x0C, 0x5F, 0xB9, 0xB1, 0xCD, 0x2E,
+        0xC5, 0xF3, 0xDB, 0x47, 0xE5, 0xA5, 0x9C, 0x77,
+        0x0A, 0xA6, 0x20, 0x68, 0xFE, 0x7F, 0xC1, 0xAD,
+        0xD9, 0x78, 0xF9, 0xC4, 0x19, 0xDD, 0xB5, 0xED,
+        0x28, 0xE9, 0xFD, 0x79, 0x4A, 0xA0, 0xD8, 0x9D,
+        0xC6, 0x7E, 0x37, 0x83, 0x2B, 0x76, 0x53, 0x8E,
+        0x62, 0x4C, 0x64, 0x88, 0x44, 0x8B, 0xFB, 0xA2,
+        0x17, 0x9A, 0x59, 0xF5, 0x87, 0xB3, 0x4F, 0x13,
+        0x61, 0x45, 0x6D, 0x8D, 0x09, 0x81, 0x7D, 0x32,
+        0xBD, 0x8F, 0x40, 0xEB, 0x86, 0xB7, 0x7B, 0x0B,
+        0xF0, 0x95, 0x21, 0x22, 0x5C, 0x6B, 0x4E, 0x82,
+        0x54, 0xD6, 0x65, 0x93, 0xCE, 0x60, 0xB2, 0x1C,
+        0x73, 0x56, 0xC0, 0x14, 0xA7, 0x8C, 0xF1, 0xDC,
+        0x12, 0x75, 0xCA, 0x1F, 0x3B, 0xBE, 0xE4, 0xD1,
+        0x42, 0x3D, 0xD4, 0x30, 0xA3, 0x3C, 0xB6, 0x26,
+        0x6F, 0xBF, 0x0E, 0xDA, 0x46, 0x69, 0x07, 0x57,
+        0x27, 0xF2, 0x1D, 0x9B, 0xBC, 0x94, 0x43, 0x03,
+        0xF8, 0x11, 0xC7, 0xF6, 0x90, 0xEF, 0x3E, 0xE7,
+        0x06, 0xC3, 0xD5, 0x2F, 0xC8, 0x66, 0x1E, 0xD7,
+        0x08, 0xE8, 0xEA, 0xDE, 0x80, 0x52, 0xEE, 0xF7,
+        0x84, 0xAA, 0x72, 0xAC, 0x35, 0x4D, 0x6A, 0x2A,
+        0x96, 0x1A, 0xD2, 0x71, 0x5A, 0x15, 0x49, 0x74,
+        0x4B, 0x9F, 0xD0, 0x5E, 0x04, 0x18, 0xA4, 0xEC,
+        0xC2, 0xE0, 0x41, 0x6E, 0x0F, 0x51, 0xCB, 0xCC,
+        0x24, 0x91, 0xAF, 0x50, 0xA1, 0xF4, 0x70, 0x39,
+        0x99, 0x7C, 0x3A, 0x85, 0x23, 0xB8, 0xB4, 0x7A,
+        0xFC, 0x02, 0x36, 0x5B, 0x25, 0x55, 0x97, 0x31,
+        0x2D, 0x5D, 0xFA, 0x98, 0xE3, 0x8A, 0x92, 0xAE,
+        0x05, 0xDF, 0x29, 0x10, 0x67, 0x6C, 0xBA, 0xC9,
+        0xD3, 0x00, 0xE6, 0xCF, 0xE1, 0x9E, 0xA8, 0x2C,
+        0x63, 0x16, 0x01, 0x3F, 0x58, 0xE2, 0x89, 0xA9,
+        0x0D, 0x38, 0x34, 0x1B, 0xAB, 0x33, 0xFF, 0xB0,
+        0xBB, 0x48, 0x0C, 0x5F, 0xB9, 0xB1, 0xCD, 0x2E,
+        0xC5, 0xF3, 0xDB, 0x47, 0xE5, 0xA5, 0x9C, 0x77,
+        0x0A, 0xA6, 0x20, 0x68, 0xFE, 0x7F, 0xC1, 0xAD
+    );
+
+    /**
+     * Inverse key expansion randomization table.
+     *
+     * @see self::setKey()
+     * @var array
+     * @access private
+     */
+    var $invpitable = array(
+        0xD1, 0xDA, 0xB9, 0x6F, 0x9C, 0xC8, 0x78, 0x66,
+        0x80, 0x2C, 0xF8, 0x37, 0xEA, 0xE0, 0x62, 0xA4,
+        0xCB, 0x71, 0x50, 0x27, 0x4B, 0x95, 0xD9, 0x20,
+        0x9D, 0x04, 0x91, 0xE3, 0x47, 0x6A, 0x7E, 0x53,
+        0xFA, 0x3A, 0x3B, 0xB4, 0xA8, 0xBC, 0x5F, 0x68,
+        0x08, 0xCA, 0x8F, 0x14, 0xD7, 0xC0, 0xEF, 0x7B,
+        0x5B, 0xBF, 0x2F, 0xE5, 0xE2, 0x8C, 0xBA, 0x12,
+        0xE1, 0xAF, 0xB2, 0x54, 0x5D, 0x59, 0x76, 0xDB,
+        0x32, 0xA2, 0x58, 0x6E, 0x1C, 0x29, 0x64, 0xF3,
+        0xE9, 0x96, 0x0C, 0x98, 0x19, 0x8D, 0x3E, 0x26,
+        0xAB, 0xA5, 0x85, 0x16, 0x40, 0xBD, 0x49, 0x67,
+        0xDC, 0x22, 0x94, 0xBB, 0x3C, 0xC1, 0x9B, 0xEB,
+        0x45, 0x28, 0x18, 0xD8, 0x1A, 0x42, 0x7D, 0xCC,
+        0xFB, 0x65, 0x8E, 0x3D, 0xCD, 0x2A, 0xA3, 0x60,
+        0xAE, 0x93, 0x8A, 0x48, 0x97, 0x51, 0x15, 0xF7,
+        0x01, 0x0B, 0xB7, 0x36, 0xB1, 0x2E, 0x11, 0xFD,
+        0x84, 0x2D, 0x3F, 0x13, 0x88, 0xB3, 0x34, 0x24,
+        0x1B, 0xDE, 0xC5, 0x1D, 0x4D, 0x2B, 0x17, 0x31,
+        0x74, 0xA9, 0xC6, 0x43, 0x6D, 0x39, 0x90, 0xBE,
+        0xC3, 0xB0, 0x21, 0x6B, 0xF6, 0x0F, 0xD5, 0x99,
+        0x0D, 0xAC, 0x1F, 0x5C, 0x9E, 0xF5, 0xF9, 0x4C,
+        0xD6, 0xDF, 0x89, 0xE4, 0x8B, 0xFF, 0xC7, 0xAA,
+        0xE7, 0xED, 0x46, 0x25, 0xB6, 0x06, 0x5E, 0x35,
+        0xB5, 0xEC, 0xCE, 0xE8, 0x6C, 0x30, 0x55, 0x61,
+        0x4A, 0xFE, 0xA0, 0x79, 0x03, 0xF0, 0x10, 0x72,
+        0x7C, 0xCF, 0x52, 0xA6, 0xA7, 0xEE, 0x44, 0xD3,
+        0x9A, 0x57, 0x92, 0xD0, 0x5A, 0x7A, 0x41, 0x7F,
+        0x0E, 0x00, 0x63, 0xF2, 0x4F, 0x05, 0x83, 0xC9,
+        0xA1, 0xD4, 0xDD, 0xC4, 0x56, 0xF4, 0xD2, 0x77,
+        0x81, 0x09, 0x82, 0x33, 0x9F, 0x07, 0x86, 0x75,
+        0x38, 0x4E, 0x69, 0xF1, 0xAD, 0x23, 0x73, 0x87,
+        0x70, 0x02, 0xC2, 0x1E, 0xB8, 0x0A, 0xFC, 0xE6
+    );
+
+    /**
+     * Test for engine validity
+     *
+     * This is mainly just a wrapper to set things up for \phpseclib\Crypt\Base::isValidEngine()
+     *
+     * @see \phpseclib\Crypt\Base::__construct()
+     * @param int $engine
+     * @access public
+     * @return bool
+     */
+    function isValidEngine($engine)
+    {
+        switch ($engine) {
+            case self::ENGINE_OPENSSL:
+                if ($this->current_key_length != 128 || strlen($this->orig_key) < 16) {
+                    return false;
+                }
+                $this->cipher_name_openssl_ecb = 'rc2-ecb';
+                $this->cipher_name_openssl = 'rc2-' . $this->_openssl_translate_mode();
+        }
+
+        return parent::isValidEngine($engine);
+    }
+
+    /**
+     * Sets the key length.
+     *
+     * Valid key lengths are 8 to 1024.
+     * Calling this function after setting the key has no effect until the next
+     *  \phpseclib\Crypt\RC2::setKey() call.
+     *
+     * @access public
+     * @param int $length in bits
+     */
+    function setKeyLength($length)
+    {
+        if ($length < 8) {
+            $this->default_key_length = 1;
+        } elseif ($length > 1024) {
+            $this->default_key_length = 128;
+        } else {
+            $this->default_key_length = $length;
+        }
+        $this->current_key_length = $this->default_key_length;
+
+        parent::setKeyLength($length);
+    }
+
+    /**
+     * Returns the current key length
+     *
+     * @access public
+     * @return int
+     */
+    function getKeyLength()
+    {
+        return $this->current_key_length;
+    }
+
+    /**
+     * Sets the key.
+     *
+     * Keys can be of any length. RC2, itself, uses 8 to 1024 bit keys (eg.
+     * strlen($key) <= 128), however, we only use the first 128 bytes if $key
+     * has more then 128 bytes in it, and set $key to a single null byte if
+     * it is empty.
+     *
+     * If the key is not explicitly set, it'll be assumed to be a single
+     * null byte.
+     *
+     * @see \phpseclib\Crypt\Base::setKey()
+     * @access public
+     * @param string $key
+     * @param int $t1 optional Effective key length in bits.
+     */
+    function setKey($key, $t1 = 0)
+    {
+        $this->orig_key = $key;
+
+        if ($t1 <= 0) {
+            $t1 = $this->default_key_length;
+        } elseif ($t1 > 1024) {
+            $t1 = 1024;
+        }
+        $this->current_key_length = $t1;
+        // Key byte count should be 1..128.
+        $key = strlen($key) ? substr($key, 0, 128) : "\x00";
+        $t = strlen($key);
+
+        // The mcrypt RC2 implementation only supports effective key length
+        // of 1024 bits. It is however possible to handle effective key
+        // lengths in range 1..1024 by expanding the key and applying
+        // inverse pitable mapping to the first byte before submitting it
+        // to mcrypt.
+
+        // Key expansion.
+        $l = array_values(unpack('C*', $key));
+        $t8 = ($t1 + 7) >> 3;
+        $tm = 0xFF >> (8 * $t8 - $t1);
+
+        // Expand key.
+        $pitable = $this->pitable;
+        for ($i = $t; $i < 128; $i++) {
+            $l[$i] = $pitable[$l[$i - 1] + $l[$i - $t]];
+        }
+        $i = 128 - $t8;
+        $l[$i] = $pitable[$l[$i] & $tm];
+        while ($i--) {
+            $l[$i] = $pitable[$l[$i + 1] ^ $l[$i + $t8]];
+        }
+
+        // Prepare the key for mcrypt.
+        $l[0] = $this->invpitable[$l[0]];
+        array_unshift($l, 'C*');
+
+        parent::setKey(call_user_func_array('pack', $l));
+    }
+
+    /**
+     * Encrypts a message.
+     *
+     * Mostly a wrapper for \phpseclib\Crypt\Base::encrypt, with some additional OpenSSL handling code
+     *
+     * @see self::decrypt()
+     * @access public
+     * @param string $plaintext
+     * @return string $ciphertext
+     */
+    function encrypt($plaintext)
+    {
+        if ($this->engine == self::ENGINE_OPENSSL) {
+            $temp = $this->key;
+            $this->key = $this->orig_key;
+            $result = parent::encrypt($plaintext);
+            $this->key = $temp;
+            return $result;
+        }
+
+        return parent::encrypt($plaintext);
+    }
+
+    /**
+     * Decrypts a message.
+     *
+     * Mostly a wrapper for \phpseclib\Crypt\Base::decrypt, with some additional OpenSSL handling code
+     *
+     * @see self::encrypt()
+     * @access public
+     * @param string $ciphertext
+     * @return string $plaintext
+     */
+    function decrypt($ciphertext)
+    {
+        if ($this->engine == self::ENGINE_OPENSSL) {
+            $temp = $this->key;
+            $this->key = $this->orig_key;
+            $result = parent::decrypt($ciphertext);
+            $this->key = $temp;
+            return $result;
+        }
+
+        return parent::decrypt($ciphertext);
+    }
+
+    /**
+     * Encrypts a block
+     *
+     * @see \phpseclib\Crypt\Base::_encryptBlock()
+     * @see \phpseclib\Crypt\Base::encrypt()
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    function _encryptBlock($in)
+    {
+        list($r0, $r1, $r2, $r3) = array_values(unpack('v*', $in));
+        $keys = $this->keys;
+        $limit = 20;
+        $actions = array($limit => 44, 44 => 64);
+        $j = 0;
+
+        for (;;) {
+            // Mixing round.
+            $r0 = (($r0 + $keys[$j++] + ((($r1 ^ $r2) & $r3) ^ $r1)) & 0xFFFF) << 1;
+            $r0 |= $r0 >> 16;
+            $r1 = (($r1 + $keys[$j++] + ((($r2 ^ $r3) & $r0) ^ $r2)) & 0xFFFF) << 2;
+            $r1 |= $r1 >> 16;
+            $r2 = (($r2 + $keys[$j++] + ((($r3 ^ $r0) & $r1) ^ $r3)) & 0xFFFF) << 3;
+            $r2 |= $r2 >> 16;
+            $r3 = (($r3 + $keys[$j++] + ((($r0 ^ $r1) & $r2) ^ $r0)) & 0xFFFF) << 5;
+            $r3 |= $r3 >> 16;
+
+            if ($j === $limit) {
+                if ($limit === 64) {
+                    break;
+                }
+
+                // Mashing round.
+                $r0 += $keys[$r3 & 0x3F];
+                $r1 += $keys[$r0 & 0x3F];
+                $r2 += $keys[$r1 & 0x3F];
+                $r3 += $keys[$r2 & 0x3F];
+                $limit = $actions[$limit];
+            }
+        }
+
+        return pack('vvvv', $r0, $r1, $r2, $r3);
+    }
+
+    /**
+     * Decrypts a block
+     *
+     * @see \phpseclib\Crypt\Base::_decryptBlock()
+     * @see \phpseclib\Crypt\Base::decrypt()
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    function _decryptBlock($in)
+    {
+        list($r0, $r1, $r2, $r3) = array_values(unpack('v*', $in));
+        $keys = $this->keys;
+        $limit = 44;
+        $actions = array($limit => 20, 20 => 0);
+        $j = 64;
+
+        for (;;) {
+            // R-mixing round.
+            $r3 = ($r3 | ($r3 << 16)) >> 5;
+            $r3 = ($r3 - $keys[--$j] - ((($r0 ^ $r1) & $r2) ^ $r0)) & 0xFFFF;
+            $r2 = ($r2 | ($r2 << 16)) >> 3;
+            $r2 = ($r2 - $keys[--$j] - ((($r3 ^ $r0) & $r1) ^ $r3)) & 0xFFFF;
+            $r1 = ($r1 | ($r1 << 16)) >> 2;
+            $r1 = ($r1 - $keys[--$j] - ((($r2 ^ $r3) & $r0) ^ $r2)) & 0xFFFF;
+            $r0 = ($r0 | ($r0 << 16)) >> 1;
+            $r0 = ($r0 - $keys[--$j] - ((($r1 ^ $r2) & $r3) ^ $r1)) & 0xFFFF;
+
+            if ($j === $limit) {
+                if ($limit === 0) {
+                    break;
+                }
+
+                // R-mashing round.
+                $r3 = ($r3 - $keys[$r2 & 0x3F]) & 0xFFFF;
+                $r2 = ($r2 - $keys[$r1 & 0x3F]) & 0xFFFF;
+                $r1 = ($r1 - $keys[$r0 & 0x3F]) & 0xFFFF;
+                $r0 = ($r0 - $keys[$r3 & 0x3F]) & 0xFFFF;
+                $limit = $actions[$limit];
+            }
+        }
+
+        return pack('vvvv', $r0, $r1, $r2, $r3);
+    }
+
+    /**
+     * Setup the \phpseclib\Crypt\Base::ENGINE_MCRYPT $engine
+     *
+     * @see \phpseclib\Crypt\Base::_setupMcrypt()
+     * @access private
+     */
+    function _setupMcrypt()
+    {
+        if (!isset($this->key)) {
+            $this->setKey('');
+        }
+
+        parent::_setupMcrypt();
+    }
+
+    /**
+     * Creates the key schedule
+     *
+     * @see \phpseclib\Crypt\Base::_setupKey()
+     * @access private
+     */
+    function _setupKey()
+    {
+        if (!isset($this->key)) {
+            $this->setKey('');
+        }
+
+        // Key has already been expanded in \phpseclib\Crypt\RC2::setKey():
+        // Only the first value must be altered.
+        $l = unpack('Ca/Cb/v*', $this->key);
+        array_unshift($l, $this->pitable[$l['a']] | ($l['b'] << 8));
+        unset($l['a']);
+        unset($l['b']);
+        $this->keys = $l;
+    }
+
+    /**
+     * Setup the performance-optimized function for de/encrypt()
+     *
+     * @see \phpseclib\Crypt\Base::_setupInlineCrypt()
+     * @access private
+     */
+    function _setupInlineCrypt()
+    {
+        $lambda_functions =& self::_getLambdaFunctions();
+
+        // The first 10 generated $lambda_functions will use the $keys hardcoded as integers
+        // for the mixing rounds, for better inline crypt performance [~20% faster].
+        // But for memory reason we have to limit those ultra-optimized $lambda_functions to an amount of 10.
+        // (Currently, for Crypt_RC2, one generated $lambda_function cost on php5.5@32bit ~60kb unfreeable mem and ~100kb on php5.5@64bit)
+        $gen_hi_opt_code = (bool)(count($lambda_functions) < 10);
+
+        // Generation of a unique hash for our generated code
+        $code_hash = "Crypt_RC2, {$this->mode}";
+        if ($gen_hi_opt_code) {
+            $code_hash = str_pad($code_hash, 32) . $this->_hashInlineCryptFunction($this->key);
+        }
+
+        // Is there a re-usable $lambda_functions in there?
+        // If not, we have to create it.
+        if (!isset($lambda_functions[$code_hash])) {
+            // Init code for both, encrypt and decrypt.
+            $init_crypt = '$keys = $self->keys;';
+
+            switch (true) {
+                case $gen_hi_opt_code:
+                    $keys = $this->keys;
+                default:
+                    $keys = array();
+                    foreach ($this->keys as $k => $v) {
+                        $keys[$k] = '$keys[' . $k . ']';
+                    }
+            }
+
+            // $in is the current 8 bytes block which has to be en/decrypt
+            $encrypt_block = $decrypt_block = '
+                $in = unpack("v4", $in);
+                $r0 = $in[1];
+                $r1 = $in[2];
+                $r2 = $in[3];
+                $r3 = $in[4];
+            ';
+
+            // Create code for encryption.
+            $limit = 20;
+            $actions = array($limit => 44, 44 => 64);
+            $j = 0;
+
+            for (;;) {
+                // Mixing round.
+                $encrypt_block .= '
+                    $r0 = (($r0 + ' . $keys[$j++] . ' +
+                           ((($r1 ^ $r2) & $r3) ^ $r1)) & 0xFFFF) << 1;
+                    $r0 |= $r0 >> 16;
+                    $r1 = (($r1 + ' . $keys[$j++] . ' +
+                           ((($r2 ^ $r3) & $r0) ^ $r2)) & 0xFFFF) << 2;
+                    $r1 |= $r1 >> 16;
+                    $r2 = (($r2 + ' . $keys[$j++] . ' +
+                           ((($r3 ^ $r0) & $r1) ^ $r3)) & 0xFFFF) << 3;
+                    $r2 |= $r2 >> 16;
+                    $r3 = (($r3 + ' . $keys[$j++] . ' +
+                           ((($r0 ^ $r1) & $r2) ^ $r0)) & 0xFFFF) << 5;
+                    $r3 |= $r3 >> 16;';
+
+                if ($j === $limit) {
+                    if ($limit === 64) {
+                        break;
+                    }
+
+                    // Mashing round.
+                    $encrypt_block .= '
+                        $r0 += $keys[$r3 & 0x3F];
+                        $r1 += $keys[$r0 & 0x3F];
+                        $r2 += $keys[$r1 & 0x3F];
+                        $r3 += $keys[$r2 & 0x3F];';
+                    $limit = $actions[$limit];
+                }
+            }
+
+            $encrypt_block .= '$in = pack("v4", $r0, $r1, $r2, $r3);';
+
+            // Create code for decryption.
+            $limit = 44;
+            $actions = array($limit => 20, 20 => 0);
+            $j = 64;
+
+            for (;;) {
+                // R-mixing round.
+                $decrypt_block .= '
+                    $r3 = ($r3 | ($r3 << 16)) >> 5;
+                    $r3 = ($r3 - ' . $keys[--$j] . ' -
+                           ((($r0 ^ $r1) & $r2) ^ $r0)) & 0xFFFF;
+                    $r2 = ($r2 | ($r2 << 16)) >> 3;
+                    $r2 = ($r2 - ' . $keys[--$j] . ' -
+                           ((($r3 ^ $r0) & $r1) ^ $r3)) & 0xFFFF;
+                    $r1 = ($r1 | ($r1 << 16)) >> 2;
+                    $r1 = ($r1 - ' . $keys[--$j] . ' -
+                           ((($r2 ^ $r3) & $r0) ^ $r2)) & 0xFFFF;
+                    $r0 = ($r0 | ($r0 << 16)) >> 1;
+                    $r0 = ($r0 - ' . $keys[--$j] . ' -
+                           ((($r1 ^ $r2) & $r3) ^ $r1)) & 0xFFFF;';
+
+                if ($j === $limit) {
+                    if ($limit === 0) {
+                        break;
+                    }
+
+                    // R-mashing round.
+                    $decrypt_block .= '
+                        $r3 = ($r3 - $keys[$r2 & 0x3F]) & 0xFFFF;
+                        $r2 = ($r2 - $keys[$r1 & 0x3F]) & 0xFFFF;
+                        $r1 = ($r1 - $keys[$r0 & 0x3F]) & 0xFFFF;
+                        $r0 = ($r0 - $keys[$r3 & 0x3F]) & 0xFFFF;';
+                    $limit = $actions[$limit];
+                }
+            }
+
+            $decrypt_block .= '$in = pack("v4", $r0, $r1, $r2, $r3);';
+
+            // Creates the inline-crypt function
+            $lambda_functions[$code_hash] = $this->_createInlineCryptFunction(
+                array(
+                   'init_crypt'    => $init_crypt,
+                   'encrypt_block' => $encrypt_block,
+                   'decrypt_block' => $decrypt_block
+                )
+            );
+        }
+
+        // Set the inline-crypt function as callback in: $this->inline_crypt
+        $this->inline_crypt = $lambda_functions[$code_hash];
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/RC4.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/RC4.php
new file mode 100644
index 0000000..25e4ff8
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/RC4.php
@@ -0,0 +1,342 @@
+<?php
+
+/**
+ * Pure-PHP implementation of RC4.
+ *
+ * Uses mcrypt, if available, and an internal implementation, otherwise.
+ *
+ * PHP version 5
+ *
+ * Useful resources are as follows:
+ *
+ *  - {@link http://www.mozilla.org/projects/security/pki/nss/draft-kaukonen-cipher-arcfour-03.txt ARCFOUR Algorithm}
+ *  - {@link http://en.wikipedia.org/wiki/RC4 - Wikipedia: RC4}
+ *
+ * RC4 is also known as ARCFOUR or ARC4.  The reason is elaborated upon at Wikipedia.  This class is named RC4 and not
+ * ARCFOUR or ARC4 because RC4 is how it is referred to in the SSH1 specification.
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $rc4 = new \phpseclib\Crypt\RC4();
+ *
+ *    $rc4->setKey('abcdefgh');
+ *
+ *    $size = 10 * 1024;
+ *    $plaintext = '';
+ *    for ($i = 0; $i < $size; $i++) {
+ *        $plaintext.= 'a';
+ *    }
+ *
+ *    echo $rc4->decrypt($rc4->encrypt($plaintext));
+ * ?>
+ * </code>
+ *
+ * @category  Crypt
+ * @package   RC4
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2007 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Pure-PHP implementation of RC4.
+ *
+ * @package RC4
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @access  public
+ */
+class RC4 extends Base
+{
+    /**#@+
+     * @access private
+     * @see \phpseclib\Crypt\RC4::_crypt()
+    */
+    const ENCRYPT = 0;
+    const DECRYPT = 1;
+    /**#@-*/
+
+    /**
+     * Block Length of the cipher
+     *
+     * RC4 is a stream cipher
+     * so we the block_size to 0
+     *
+     * @see \phpseclib\Crypt\Base::block_size
+     * @var int
+     * @access private
+     */
+    var $block_size = 0;
+
+    /**
+     * Key Length (in bytes)
+     *
+     * @see \phpseclib\Crypt\RC4::setKeyLength()
+     * @var int
+     * @access private
+     */
+    var $key_length = 128; // = 1024 bits
+
+    /**
+     * The mcrypt specific name of the cipher
+     *
+     * @see \phpseclib\Crypt\Base::cipher_name_mcrypt
+     * @var string
+     * @access private
+     */
+    var $cipher_name_mcrypt = 'arcfour';
+
+    /**
+     * Holds whether performance-optimized $inline_crypt() can/should be used.
+     *
+     * @see \phpseclib\Crypt\Base::inline_crypt
+     * @var mixed
+     * @access private
+     */
+    var $use_inline_crypt = false; // currently not available
+
+    /**
+     * The Key
+     *
+     * @see self::setKey()
+     * @var string
+     * @access private
+     */
+    var $key;
+
+    /**
+     * The Key Stream for decryption and encryption
+     *
+     * @see self::setKey()
+     * @var array
+     * @access private
+     */
+    var $stream;
+
+    /**
+     * Default Constructor.
+     *
+     * Determines whether or not the mcrypt extension should be used.
+     *
+     * @see \phpseclib\Crypt\Base::__construct()
+     * @return \phpseclib\Crypt\RC4
+     * @access public
+     */
+    function __construct()
+    {
+        parent::__construct(Base::MODE_STREAM);
+    }
+
+    /**
+     * Test for engine validity
+     *
+     * This is mainly just a wrapper to set things up for \phpseclib\Crypt\Base::isValidEngine()
+     *
+     * @see \phpseclib\Crypt\Base::__construct()
+     * @param int $engine
+     * @access public
+     * @return bool
+     */
+    function isValidEngine($engine)
+    {
+        if ($engine == Base::ENGINE_OPENSSL) {
+            if (version_compare(PHP_VERSION, '5.3.7') >= 0) {
+                $this->cipher_name_openssl = 'rc4-40';
+            } else {
+                switch (strlen($this->key)) {
+                    case 5:
+                        $this->cipher_name_openssl = 'rc4-40';
+                        break;
+                    case 8:
+                        $this->cipher_name_openssl = 'rc4-64';
+                        break;
+                    case 16:
+                        $this->cipher_name_openssl = 'rc4';
+                        break;
+                    default:
+                        return false;
+                }
+            }
+        }
+
+        return parent::isValidEngine($engine);
+    }
+
+    /**
+     * Dummy function.
+     *
+     * Some protocols, such as WEP, prepend an "initialization vector" to the key, effectively creating a new key [1].
+     * If you need to use an initialization vector in this manner, feel free to prepend it to the key, yourself, before
+     * calling setKey().
+     *
+     * [1] WEP's initialization vectors (IV's) are used in a somewhat insecure way.  Since, in that protocol,
+     * the IV's are relatively easy to predict, an attack described by
+     * {@link http://www.drizzle.com/~aboba/IEEE/rc4_ksaproc.pdf Scott Fluhrer, Itsik Mantin, and Adi Shamir}
+     * can be used to quickly guess at the rest of the key.  The following links elaborate:
+     *
+     * {@link http://www.rsa.com/rsalabs/node.asp?id=2009 http://www.rsa.com/rsalabs/node.asp?id=2009}
+     * {@link http://en.wikipedia.org/wiki/Related_key_attack http://en.wikipedia.org/wiki/Related_key_attack}
+     *
+     * @param string $iv
+     * @see self::setKey()
+     * @access public
+     */
+    function setIV($iv)
+    {
+    }
+
+    /**
+     * Sets the key length
+     *
+     * Keys can be between 1 and 256 bytes long.
+     *
+     * @access public
+     * @param int $length
+     */
+    function setKeyLength($length)
+    {
+        if ($length < 8) {
+            $this->key_length = 1;
+        } elseif ($length > 2048) {
+            $this->key_length = 256;
+        } else {
+            $this->key_length = $length >> 3;
+        }
+
+        parent::setKeyLength($length);
+    }
+
+    /**
+     * Encrypts a message.
+     *
+     * @see \phpseclib\Crypt\Base::decrypt()
+     * @see self::_crypt()
+     * @access public
+     * @param string $plaintext
+     * @return string $ciphertext
+     */
+    function encrypt($plaintext)
+    {
+        if ($this->engine != Base::ENGINE_INTERNAL) {
+            return parent::encrypt($plaintext);
+        }
+        return $this->_crypt($plaintext, self::ENCRYPT);
+    }
+
+    /**
+     * Decrypts a message.
+     *
+     * $this->decrypt($this->encrypt($plaintext)) == $this->encrypt($this->encrypt($plaintext)).
+     * At least if the continuous buffer is disabled.
+     *
+     * @see \phpseclib\Crypt\Base::encrypt()
+     * @see self::_crypt()
+     * @access public
+     * @param string $ciphertext
+     * @return string $plaintext
+     */
+    function decrypt($ciphertext)
+    {
+        if ($this->engine != Base::ENGINE_INTERNAL) {
+            return parent::decrypt($ciphertext);
+        }
+        return $this->_crypt($ciphertext, self::DECRYPT);
+    }
+
+    /**
+     * Encrypts a block
+     *
+     * @access private
+     * @param string $in
+     */
+    function _encryptBlock($in)
+    {
+        // RC4 does not utilize this method
+    }
+
+    /**
+     * Decrypts a block
+     *
+     * @access private
+     * @param string $in
+     */
+    function _decryptBlock($in)
+    {
+        // RC4 does not utilize this method
+    }
+
+    /**
+     * Setup the key (expansion)
+     *
+     * @see \phpseclib\Crypt\Base::_setupKey()
+     * @access private
+     */
+    function _setupKey()
+    {
+        $key = $this->key;
+        $keyLength = strlen($key);
+        $keyStream = range(0, 255);
+        $j = 0;
+        for ($i = 0; $i < 256; $i++) {
+            $j = ($j + $keyStream[$i] + ord($key[$i % $keyLength])) & 255;
+            $temp = $keyStream[$i];
+            $keyStream[$i] = $keyStream[$j];
+            $keyStream[$j] = $temp;
+        }
+
+        $this->stream = array();
+        $this->stream[self::DECRYPT] = $this->stream[self::ENCRYPT] = array(
+            0, // index $i
+            0, // index $j
+            $keyStream
+        );
+    }
+
+    /**
+     * Encrypts or decrypts a message.
+     *
+     * @see self::encrypt()
+     * @see self::decrypt()
+     * @access private
+     * @param string $text
+     * @param int $mode
+     * @return string $text
+     */
+    function _crypt($text, $mode)
+    {
+        if ($this->changed) {
+            $this->_setup();
+            $this->changed = false;
+        }
+
+        $stream = &$this->stream[$mode];
+        if ($this->continuousBuffer) {
+            $i = &$stream[0];
+            $j = &$stream[1];
+            $keyStream = &$stream[2];
+        } else {
+            $i = $stream[0];
+            $j = $stream[1];
+            $keyStream = $stream[2];
+        }
+
+        $len = strlen($text);
+        for ($k = 0; $k < $len; ++$k) {
+            $i = ($i + 1) & 255;
+            $ksi = $keyStream[$i];
+            $j = ($j + $ksi) & 255;
+            $ksj = $keyStream[$j];
+
+            $keyStream[$i] = $ksj;
+            $keyStream[$j] = $ksi;
+            $text[$k] = $text[$k] ^ chr($keyStream[($ksj + $ksi) & 255]);
+        }
+
+        return $text;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/RSA.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/RSA.php
new file mode 100644
index 0000000..cd116b5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/RSA.php
@@ -0,0 +1,3053 @@
+<?php
+
+/**
+ * Pure-PHP PKCS#1 (v2.1) compliant implementation of RSA.
+ *
+ * PHP version 5
+ *
+ * Here's an example of how to encrypt and decrypt text with this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $rsa = new \phpseclib\Crypt\RSA();
+ *    extract($rsa->createKey());
+ *
+ *    $plaintext = 'terrafrost';
+ *
+ *    $rsa->loadKey($privatekey);
+ *    $ciphertext = $rsa->encrypt($plaintext);
+ *
+ *    $rsa->loadKey($publickey);
+ *    echo $rsa->decrypt($ciphertext);
+ * ?>
+ * </code>
+ *
+ * Here's an example of how to create signatures and verify signatures with this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $rsa = new \phpseclib\Crypt\RSA();
+ *    extract($rsa->createKey());
+ *
+ *    $plaintext = 'terrafrost';
+ *
+ *    $rsa->loadKey($privatekey);
+ *    $signature = $rsa->sign($plaintext);
+ *
+ *    $rsa->loadKey($publickey);
+ *    echo $rsa->verify($plaintext, $signature) ? 'verified' : 'unverified';
+ * ?>
+ * </code>
+ *
+ * @category  Crypt
+ * @package   RSA
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2009 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+use phpseclib\Math\BigInteger;
+
+/**
+ * Pure-PHP PKCS#1 compliant implementation of RSA.
+ *
+ * @package RSA
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @access  public
+ */
+class RSA
+{
+    /**#@+
+     * @access public
+     * @see self::encrypt()
+     * @see self::decrypt()
+     */
+    /**
+     * Use {@link http://en.wikipedia.org/wiki/Optimal_Asymmetric_Encryption_Padding Optimal Asymmetric Encryption Padding}
+     * (OAEP) for encryption / decryption.
+     *
+     * Uses sha1 by default.
+     *
+     * @see self::setHash()
+     * @see self::setMGFHash()
+     */
+    const ENCRYPTION_OAEP = 1;
+    /**
+     * Use PKCS#1 padding.
+     *
+     * Although self::ENCRYPTION_OAEP offers more security, including PKCS#1 padding is necessary for purposes of backwards
+     * compatibility with protocols (like SSH-1) written before OAEP's introduction.
+     */
+    const ENCRYPTION_PKCS1 = 2;
+    /**
+     * Do not use any padding
+     *
+     * Although this method is not recommended it can none-the-less sometimes be useful if you're trying to decrypt some legacy
+     * stuff, if you're trying to diagnose why an encrypted message isn't decrypting, etc.
+     */
+    const ENCRYPTION_NONE = 3;
+    /**#@-*/
+
+    /**#@+
+     * @access public
+     * @see self::sign()
+     * @see self::verify()
+     * @see self::setHash()
+    */
+    /**
+     * Use the Probabilistic Signature Scheme for signing
+     *
+     * Uses sha1 by default.
+     *
+     * @see self::setSaltLength()
+     * @see self::setMGFHash()
+     */
+    const SIGNATURE_PSS = 1;
+    /**
+     * Use the PKCS#1 scheme by default.
+     *
+     * Although self::SIGNATURE_PSS offers more security, including PKCS#1 signing is necessary for purposes of backwards
+     * compatibility with protocols (like SSH-2) written before PSS's introduction.
+     */
+    const SIGNATURE_PKCS1 = 2;
+    /**#@-*/
+
+    /**#@+
+     * @access private
+     * @see \phpseclib\Crypt\RSA::createKey()
+    */
+    /**
+     * ASN1 Integer
+     */
+    const ASN1_INTEGER = 2;
+    /**
+     * ASN1 Bit String
+     */
+    const ASN1_BITSTRING = 3;
+    /**
+     * ASN1 Octet String
+     */
+    const ASN1_OCTETSTRING = 4;
+    /**
+     * ASN1 Object Identifier
+     */
+    const ASN1_OBJECT = 6;
+    /**
+     * ASN1 Sequence (with the constucted bit set)
+     */
+    const ASN1_SEQUENCE = 48;
+    /**#@-*/
+
+    /**#@+
+     * @access private
+     * @see \phpseclib\Crypt\RSA::__construct()
+    */
+    /**
+     * To use the pure-PHP implementation
+     */
+    const MODE_INTERNAL = 1;
+    /**
+     * To use the OpenSSL library
+     *
+     * (if enabled; otherwise, the internal implementation will be used)
+     */
+    const MODE_OPENSSL = 2;
+    /**#@-*/
+
+    /**#@+
+     * @access public
+     * @see \phpseclib\Crypt\RSA::createKey()
+     * @see \phpseclib\Crypt\RSA::setPrivateKeyFormat()
+    */
+    /**
+     * PKCS#1 formatted private key
+     *
+     * Used by OpenSSH
+     */
+    const PRIVATE_FORMAT_PKCS1 = 0;
+    /**
+     * PuTTY formatted private key
+     */
+    const PRIVATE_FORMAT_PUTTY = 1;
+    /**
+     * XML formatted private key
+     */
+    const PRIVATE_FORMAT_XML = 2;
+    /**
+     * PKCS#8 formatted private key
+     */
+    const PRIVATE_FORMAT_PKCS8 = 8;
+    /**#@-*/
+
+    /**#@+
+     * @access public
+     * @see \phpseclib\Crypt\RSA::createKey()
+     * @see \phpseclib\Crypt\RSA::setPublicKeyFormat()
+    */
+    /**
+     * Raw public key
+     *
+     * An array containing two \phpseclib\Math\BigInteger objects.
+     *
+     * The exponent can be indexed with any of the following:
+     *
+     * 0, e, exponent, publicExponent
+     *
+     * The modulus can be indexed with any of the following:
+     *
+     * 1, n, modulo, modulus
+     */
+    const PUBLIC_FORMAT_RAW = 3;
+    /**
+     * PKCS#1 formatted public key (raw)
+     *
+     * Used by File/X509.php
+     *
+     * Has the following header:
+     *
+     * -----BEGIN RSA PUBLIC KEY-----
+     *
+     * Analogous to ssh-keygen's pem format (as specified by -m)
+     */
+    const PUBLIC_FORMAT_PKCS1 = 4;
+    const PUBLIC_FORMAT_PKCS1_RAW = 4;
+    /**
+     * XML formatted public key
+     */
+    const PUBLIC_FORMAT_XML = 5;
+    /**
+     * OpenSSH formatted public key
+     *
+     * Place in $HOME/.ssh/authorized_keys
+     */
+    const PUBLIC_FORMAT_OPENSSH = 6;
+    /**
+     * PKCS#1 formatted public key (encapsulated)
+     *
+     * Used by PHP's openssl_public_encrypt() and openssl's rsautl (when -pubin is set)
+     *
+     * Has the following header:
+     *
+     * -----BEGIN PUBLIC KEY-----
+     *
+     * Analogous to ssh-keygen's pkcs8 format (as specified by -m). Although PKCS8
+     * is specific to private keys it's basically creating a DER-encoded wrapper
+     * for keys. This just extends that same concept to public keys (much like ssh-keygen)
+     */
+    const PUBLIC_FORMAT_PKCS8 = 7;
+    /**#@-*/
+
+    /**
+     * Precomputed Zero
+     *
+     * @var \phpseclib\Math\BigInteger
+     * @access private
+     */
+    var $zero;
+
+    /**
+     * Precomputed One
+     *
+     * @var \phpseclib\Math\BigInteger
+     * @access private
+     */
+    var $one;
+
+    /**
+     * Private Key Format
+     *
+     * @var int
+     * @access private
+     */
+    var $privateKeyFormat = self::PRIVATE_FORMAT_PKCS1;
+
+    /**
+     * Public Key Format
+     *
+     * @var int
+     * @access public
+     */
+    var $publicKeyFormat = self::PUBLIC_FORMAT_PKCS8;
+
+    /**
+     * Modulus (ie. n)
+     *
+     * @var \phpseclib\Math\BigInteger
+     * @access private
+     */
+    var $modulus;
+
+    /**
+     * Modulus length
+     *
+     * @var \phpseclib\Math\BigInteger
+     * @access private
+     */
+    var $k;
+
+    /**
+     * Exponent (ie. e or d)
+     *
+     * @var \phpseclib\Math\BigInteger
+     * @access private
+     */
+    var $exponent;
+
+    /**
+     * Primes for Chinese Remainder Theorem (ie. p and q)
+     *
+     * @var array
+     * @access private
+     */
+    var $primes;
+
+    /**
+     * Exponents for Chinese Remainder Theorem (ie. dP and dQ)
+     *
+     * @var array
+     * @access private
+     */
+    var $exponents;
+
+    /**
+     * Coefficients for Chinese Remainder Theorem (ie. qInv)
+     *
+     * @var array
+     * @access private
+     */
+    var $coefficients;
+
+    /**
+     * Hash name
+     *
+     * @var string
+     * @access private
+     */
+    var $hashName;
+
+    /**
+     * Hash function
+     *
+     * @var \phpseclib\Crypt\Hash
+     * @access private
+     */
+    var $hash;
+
+    /**
+     * Length of hash function output
+     *
+     * @var int
+     * @access private
+     */
+    var $hLen;
+
+    /**
+     * Length of salt
+     *
+     * @var int
+     * @access private
+     */
+    var $sLen;
+
+    /**
+     * Hash function for the Mask Generation Function
+     *
+     * @var \phpseclib\Crypt\Hash
+     * @access private
+     */
+    var $mgfHash;
+
+    /**
+     * Length of MGF hash function output
+     *
+     * @var int
+     * @access private
+     */
+    var $mgfHLen;
+
+    /**
+     * Encryption mode
+     *
+     * @var int
+     * @access private
+     */
+    var $encryptionMode = self::ENCRYPTION_OAEP;
+
+    /**
+     * Signature mode
+     *
+     * @var int
+     * @access private
+     */
+    var $signatureMode = self::SIGNATURE_PSS;
+
+    /**
+     * Public Exponent
+     *
+     * @var mixed
+     * @access private
+     */
+    var $publicExponent = false;
+
+    /**
+     * Password
+     *
+     * @var string
+     * @access private
+     */
+    var $password = false;
+
+    /**
+     * Components
+     *
+     * For use with parsing XML formatted keys.  PHP's XML Parser functions use utilized - instead of PHP's DOM functions -
+     * because PHP's XML Parser functions work on PHP4 whereas PHP's DOM functions - although surperior - don't.
+     *
+     * @see self::_start_element_handler()
+     * @var array
+     * @access private
+     */
+    var $components = array();
+
+    /**
+     * Current String
+     *
+     * For use with parsing XML formatted keys.
+     *
+     * @see self::_character_handler()
+     * @see self::_stop_element_handler()
+     * @var mixed
+     * @access private
+     */
+    var $current;
+
+    /**
+     * OpenSSL configuration file name.
+     *
+     * Set to null to use system configuration file.
+     * @see self::createKey()
+     * @var mixed
+     * @Access public
+     */
+    var $configFile;
+
+    /**
+     * Public key comment field.
+     *
+     * @var string
+     * @access private
+     */
+    var $comment = 'phpseclib-generated-key';
+
+    /**
+     * The constructor
+     *
+     * If you want to make use of the openssl extension, you'll need to set the mode manually, yourself.  The reason
+     * \phpseclib\Crypt\RSA doesn't do it is because OpenSSL doesn't fail gracefully.  openssl_pkey_new(), in particular, requires
+     * openssl.cnf be present somewhere and, unfortunately, the only real way to find out is too late.
+     *
+     * @return \phpseclib\Crypt\RSA
+     * @access public
+     */
+    function __construct()
+    {
+        $this->configFile = dirname(__FILE__) . '/../openssl.cnf';
+
+        if (!defined('CRYPT_RSA_MODE')) {
+            switch (true) {
+                // Math/BigInteger's openssl requirements are a little less stringent than Crypt/RSA's. in particular,
+                // Math/BigInteger doesn't require an openssl.cfg file whereas Crypt/RSA does. so if Math/BigInteger
+                // can't use OpenSSL it can be pretty trivially assumed, then, that Crypt/RSA can't either.
+                case defined('MATH_BIGINTEGER_OPENSSL_DISABLE'):
+                    define('CRYPT_RSA_MODE', self::MODE_INTERNAL);
+                    break;
+                case extension_loaded('openssl') && file_exists($this->configFile):
+                    // some versions of XAMPP have mismatched versions of OpenSSL which causes it not to work
+                    ob_start();
+                    @phpinfo();
+                    $content = ob_get_contents();
+                    ob_end_clean();
+
+                    preg_match_all('#OpenSSL (Header|Library) Version(.*)#im', $content, $matches);
+
+                    $versions = array();
+                    if (!empty($matches[1])) {
+                        for ($i = 0; $i < count($matches[1]); $i++) {
+                            $fullVersion = trim(str_replace('=>', '', strip_tags($matches[2][$i])));
+
+                            // Remove letter part in OpenSSL version
+                            if (!preg_match('/(\d+\.\d+\.\d+)/i', $fullVersion, $m)) {
+                                $versions[$matches[1][$i]] = $fullVersion;
+                            } else {
+                                $versions[$matches[1][$i]] = $m[0];
+                            }
+                        }
+                    }
+
+                    // it doesn't appear that OpenSSL versions were reported upon until PHP 5.3+
+                    switch (true) {
+                        case !isset($versions['Header']):
+                        case !isset($versions['Library']):
+                        case $versions['Header'] == $versions['Library']:
+                        case version_compare($versions['Header'], '1.0.0') >= 0 && version_compare($versions['Library'], '1.0.0') >= 0:
+                            define('CRYPT_RSA_MODE', self::MODE_OPENSSL);
+                            break;
+                        default:
+                            define('CRYPT_RSA_MODE', self::MODE_INTERNAL);
+                            define('MATH_BIGINTEGER_OPENSSL_DISABLE', true);
+                    }
+                    break;
+                default:
+                    define('CRYPT_RSA_MODE', self::MODE_INTERNAL);
+            }
+        }
+
+        $this->zero = new BigInteger();
+        $this->one = new BigInteger(1);
+
+        $this->hash = new Hash('sha1');
+        $this->hLen = $this->hash->getLength();
+        $this->hashName = 'sha1';
+        $this->mgfHash = new Hash('sha1');
+        $this->mgfHLen = $this->mgfHash->getLength();
+    }
+
+    /**
+     * Create public / private key pair
+     *
+     * Returns an array with the following three elements:
+     *  - 'privatekey': The private key.
+     *  - 'publickey':  The public key.
+     *  - 'partialkey': A partially computed key (if the execution time exceeded $timeout).
+     *                  Will need to be passed back to \phpseclib\Crypt\RSA::createKey() as the third parameter for further processing.
+     *
+     * @access public
+     * @param int $bits
+     * @param int $timeout
+     * @param array $p
+     */
+    function createKey($bits = 1024, $timeout = false, $partial = array())
+    {
+        if (!defined('CRYPT_RSA_EXPONENT')) {
+            // http://en.wikipedia.org/wiki/65537_%28number%29
+            define('CRYPT_RSA_EXPONENT', '65537');
+        }
+        // per <http://cseweb.ucsd.edu/~hovav/dist/survey.pdf#page=5>, this number ought not result in primes smaller
+        // than 256 bits. as a consequence if the key you're trying to create is 1024 bits and you've set CRYPT_RSA_SMALLEST_PRIME
+        // to 384 bits then you're going to get a 384 bit prime and a 640 bit prime (384 + 1024 % 384). at least if
+        // CRYPT_RSA_MODE is set to self::MODE_INTERNAL. if CRYPT_RSA_MODE is set to self::MODE_OPENSSL then
+        // CRYPT_RSA_SMALLEST_PRIME is ignored (ie. multi-prime RSA support is more intended as a way to speed up RSA key
+        // generation when there's a chance neither gmp nor OpenSSL are installed)
+        if (!defined('CRYPT_RSA_SMALLEST_PRIME')) {
+            define('CRYPT_RSA_SMALLEST_PRIME', 4096);
+        }
+
+        // OpenSSL uses 65537 as the exponent and requires RSA keys be 384 bits minimum
+        if (CRYPT_RSA_MODE == self::MODE_OPENSSL && $bits >= 384 && CRYPT_RSA_EXPONENT == 65537) {
+            $config = array();
+            if (isset($this->configFile)) {
+                $config['config'] = $this->configFile;
+            }
+            $rsa = openssl_pkey_new(array('private_key_bits' => $bits) + $config);
+            openssl_pkey_export($rsa, $privatekey, null, $config);
+            $publickey = openssl_pkey_get_details($rsa);
+            $publickey = $publickey['key'];
+
+            $privatekey = call_user_func_array(array($this, '_convertPrivateKey'), array_values($this->_parseKey($privatekey, self::PRIVATE_FORMAT_PKCS1)));
+            $publickey = call_user_func_array(array($this, '_convertPublicKey'), array_values($this->_parseKey($publickey, self::PUBLIC_FORMAT_PKCS1)));
+
+            // clear the buffer of error strings stemming from a minimalistic openssl.cnf
+            while (openssl_error_string() !== false) {
+            }
+
+            return array(
+                'privatekey' => $privatekey,
+                'publickey' => $publickey,
+                'partialkey' => false
+            );
+        }
+
+        static $e;
+        if (!isset($e)) {
+            $e = new BigInteger(CRYPT_RSA_EXPONENT);
+        }
+
+        extract($this->_generateMinMax($bits));
+        $absoluteMin = $min;
+        $temp = $bits >> 1; // divide by two to see how many bits P and Q would be
+        if ($temp > CRYPT_RSA_SMALLEST_PRIME) {
+            $num_primes = floor($bits / CRYPT_RSA_SMALLEST_PRIME);
+            $temp = CRYPT_RSA_SMALLEST_PRIME;
+        } else {
+            $num_primes = 2;
+        }
+        extract($this->_generateMinMax($temp + $bits % $temp));
+        $finalMax = $max;
+        extract($this->_generateMinMax($temp));
+
+        $generator = new BigInteger();
+
+        $n = $this->one->copy();
+        if (!empty($partial)) {
+            extract(unserialize($partial));
+        } else {
+            $exponents = $coefficients = $primes = array();
+            $lcm = array(
+                'top' => $this->one->copy(),
+                'bottom' => false
+            );
+        }
+
+        $start = time();
+        $i0 = count($primes) + 1;
+
+        do {
+            for ($i = $i0; $i <= $num_primes; $i++) {
+                if ($timeout !== false) {
+                    $timeout-= time() - $start;
+                    $start = time();
+                    if ($timeout <= 0) {
+                        return array(
+                            'privatekey' => '',
+                            'publickey'  => '',
+                            'partialkey' => serialize(array(
+                                'primes' => $primes,
+                                'coefficients' => $coefficients,
+                                'lcm' => $lcm,
+                                'exponents' => $exponents
+                            ))
+                        );
+                    }
+                }
+
+                if ($i == $num_primes) {
+                    list($min, $temp) = $absoluteMin->divide($n);
+                    if (!$temp->equals($this->zero)) {
+                        $min = $min->add($this->one); // ie. ceil()
+                    }
+                    $primes[$i] = $generator->randomPrime($min, $finalMax, $timeout);
+                } else {
+                    $primes[$i] = $generator->randomPrime($min, $max, $timeout);
+                }
+
+                if ($primes[$i] === false) { // if we've reached the timeout
+                    if (count($primes) > 1) {
+                        $partialkey = '';
+                    } else {
+                        array_pop($primes);
+                        $partialkey = serialize(array(
+                            'primes' => $primes,
+                            'coefficients' => $coefficients,
+                            'lcm' => $lcm,
+                            'exponents' => $exponents
+                        ));
+                    }
+
+                    return array(
+                        'privatekey' => '',
+                        'publickey'  => '',
+                        'partialkey' => $partialkey
+                    );
+                }
+
+                // the first coefficient is calculated differently from the rest
+                // ie. instead of being $primes[1]->modInverse($primes[2]), it's $primes[2]->modInverse($primes[1])
+                if ($i > 2) {
+                    $coefficients[$i] = $n->modInverse($primes[$i]);
+                }
+
+                $n = $n->multiply($primes[$i]);
+
+                $temp = $primes[$i]->subtract($this->one);
+
+                // textbook RSA implementations use Euler's totient function instead of the least common multiple.
+                // see http://en.wikipedia.org/wiki/Euler%27s_totient_function
+                $lcm['top'] = $lcm['top']->multiply($temp);
+                $lcm['bottom'] = $lcm['bottom'] === false ? $temp : $lcm['bottom']->gcd($temp);
+
+                $exponents[$i] = $e->modInverse($temp);
+            }
+
+            list($temp) = $lcm['top']->divide($lcm['bottom']);
+            $gcd = $temp->gcd($e);
+            $i0 = 1;
+        } while (!$gcd->equals($this->one));
+
+        $d = $e->modInverse($temp);
+
+        $coefficients[2] = $primes[2]->modInverse($primes[1]);
+
+        // from <http://tools.ietf.org/html/rfc3447#appendix-A.1.2>:
+        // RSAPrivateKey ::= SEQUENCE {
+        //     version           Version,
+        //     modulus           INTEGER,  -- n
+        //     publicExponent    INTEGER,  -- e
+        //     privateExponent   INTEGER,  -- d
+        //     prime1            INTEGER,  -- p
+        //     prime2            INTEGER,  -- q
+        //     exponent1         INTEGER,  -- d mod (p-1)
+        //     exponent2         INTEGER,  -- d mod (q-1)
+        //     coefficient       INTEGER,  -- (inverse of q) mod p
+        //     otherPrimeInfos   OtherPrimeInfos OPTIONAL
+        // }
+
+        return array(
+            'privatekey' => $this->_convertPrivateKey($n, $e, $d, $primes, $exponents, $coefficients),
+            'publickey'  => $this->_convertPublicKey($n, $e),
+            'partialkey' => false
+        );
+    }
+
+    /**
+     * Convert a private key to the appropriate format.
+     *
+     * @access private
+     * @see self::setPrivateKeyFormat()
+     * @param string $RSAPrivateKey
+     * @return string
+     */
+    function _convertPrivateKey($n, $e, $d, $primes, $exponents, $coefficients)
+    {
+        $signed = $this->privateKeyFormat != self::PRIVATE_FORMAT_XML;
+        $num_primes = count($primes);
+        $raw = array(
+            'version' => $num_primes == 2 ? chr(0) : chr(1), // two-prime vs. multi
+            'modulus' => $n->toBytes($signed),
+            'publicExponent' => $e->toBytes($signed),
+            'privateExponent' => $d->toBytes($signed),
+            'prime1' => $primes[1]->toBytes($signed),
+            'prime2' => $primes[2]->toBytes($signed),
+            'exponent1' => $exponents[1]->toBytes($signed),
+            'exponent2' => $exponents[2]->toBytes($signed),
+            'coefficient' => $coefficients[2]->toBytes($signed)
+        );
+
+        // if the format in question does not support multi-prime rsa and multi-prime rsa was used,
+        // call _convertPublicKey() instead.
+        switch ($this->privateKeyFormat) {
+            case self::PRIVATE_FORMAT_XML:
+                if ($num_primes != 2) {
+                    return false;
+                }
+                return "<RSAKeyValue>\r\n" .
+                       '  <Modulus>' . base64_encode($raw['modulus']) . "</Modulus>\r\n" .
+                       '  <Exponent>' . base64_encode($raw['publicExponent']) . "</Exponent>\r\n" .
+                       '  <P>' . base64_encode($raw['prime1']) . "</P>\r\n" .
+                       '  <Q>' . base64_encode($raw['prime2']) . "</Q>\r\n" .
+                       '  <DP>' . base64_encode($raw['exponent1']) . "</DP>\r\n" .
+                       '  <DQ>' . base64_encode($raw['exponent2']) . "</DQ>\r\n" .
+                       '  <InverseQ>' . base64_encode($raw['coefficient']) . "</InverseQ>\r\n" .
+                       '  <D>' . base64_encode($raw['privateExponent']) . "</D>\r\n" .
+                       '</RSAKeyValue>';
+                break;
+            case self::PRIVATE_FORMAT_PUTTY:
+                if ($num_primes != 2) {
+                    return false;
+                }
+                $key = "PuTTY-User-Key-File-2: ssh-rsa\r\nEncryption: ";
+                $encryption = (!empty($this->password) || is_string($this->password)) ? 'aes256-cbc' : 'none';
+                $key.= $encryption;
+                $key.= "\r\nComment: " . $this->comment . "\r\n";
+                $public = pack(
+                    'Na*Na*Na*',
+                    strlen('ssh-rsa'),
+                    'ssh-rsa',
+                    strlen($raw['publicExponent']),
+                    $raw['publicExponent'],
+                    strlen($raw['modulus']),
+                    $raw['modulus']
+                );
+                $source = pack(
+                    'Na*Na*Na*Na*',
+                    strlen('ssh-rsa'),
+                    'ssh-rsa',
+                    strlen($encryption),
+                    $encryption,
+                    strlen($this->comment),
+                    $this->comment,
+                    strlen($public),
+                    $public
+                );
+                $public = base64_encode($public);
+                $key.= "Public-Lines: " . ((strlen($public) + 63) >> 6) . "\r\n";
+                $key.= chunk_split($public, 64);
+                $private = pack(
+                    'Na*Na*Na*Na*',
+                    strlen($raw['privateExponent']),
+                    $raw['privateExponent'],
+                    strlen($raw['prime1']),
+                    $raw['prime1'],
+                    strlen($raw['prime2']),
+                    $raw['prime2'],
+                    strlen($raw['coefficient']),
+                    $raw['coefficient']
+                );
+                if (empty($this->password) && !is_string($this->password)) {
+                    $source.= pack('Na*', strlen($private), $private);
+                    $hashkey = 'putty-private-key-file-mac-key';
+                } else {
+                    $private.= Random::string(16 - (strlen($private) & 15));
+                    $source.= pack('Na*', strlen($private), $private);
+                    $sequence = 0;
+                    $symkey = '';
+                    while (strlen($symkey) < 32) {
+                        $temp = pack('Na*', $sequence++, $this->password);
+                        $symkey.= pack('H*', sha1($temp));
+                    }
+                    $symkey = substr($symkey, 0, 32);
+                    $crypto = new AES();
+
+                    $crypto->setKey($symkey);
+                    $crypto->disablePadding();
+                    $private = $crypto->encrypt($private);
+                    $hashkey = 'putty-private-key-file-mac-key' . $this->password;
+                }
+
+                $private = base64_encode($private);
+                $key.= 'Private-Lines: ' . ((strlen($private) + 63) >> 6) . "\r\n";
+                $key.= chunk_split($private, 64);
+                $hash = new Hash('sha1');
+                $hash->setKey(pack('H*', sha1($hashkey)));
+                $key.= 'Private-MAC: ' . bin2hex($hash->hash($source)) . "\r\n";
+
+                return $key;
+            default: // eg. self::PRIVATE_FORMAT_PKCS1
+                $components = array();
+                foreach ($raw as $name => $value) {
+                    $components[$name] = pack('Ca*a*', self::ASN1_INTEGER, $this->_encodeLength(strlen($value)), $value);
+                }
+
+                $RSAPrivateKey = implode('', $components);
+
+                if ($num_primes > 2) {
+                    $OtherPrimeInfos = '';
+                    for ($i = 3; $i <= $num_primes; $i++) {
+                        // OtherPrimeInfos ::= SEQUENCE SIZE(1..MAX) OF OtherPrimeInfo
+                        //
+                        // OtherPrimeInfo ::= SEQUENCE {
+                        //     prime             INTEGER,  -- ri
+                        //     exponent          INTEGER,  -- di
+                        //     coefficient       INTEGER   -- ti
+                        // }
+                        $OtherPrimeInfo = pack('Ca*a*', self::ASN1_INTEGER, $this->_encodeLength(strlen($primes[$i]->toBytes(true))), $primes[$i]->toBytes(true));
+                        $OtherPrimeInfo.= pack('Ca*a*', self::ASN1_INTEGER, $this->_encodeLength(strlen($exponents[$i]->toBytes(true))), $exponents[$i]->toBytes(true));
+                        $OtherPrimeInfo.= pack('Ca*a*', self::ASN1_INTEGER, $this->_encodeLength(strlen($coefficients[$i]->toBytes(true))), $coefficients[$i]->toBytes(true));
+                        $OtherPrimeInfos.= pack('Ca*a*', self::ASN1_SEQUENCE, $this->_encodeLength(strlen($OtherPrimeInfo)), $OtherPrimeInfo);
+                    }
+                    $RSAPrivateKey.= pack('Ca*a*', self::ASN1_SEQUENCE, $this->_encodeLength(strlen($OtherPrimeInfos)), $OtherPrimeInfos);
+                }
+
+                $RSAPrivateKey = pack('Ca*a*', self::ASN1_SEQUENCE, $this->_encodeLength(strlen($RSAPrivateKey)), $RSAPrivateKey);
+
+                if ($this->privateKeyFormat == self::PRIVATE_FORMAT_PKCS8) {
+                    $rsaOID = pack('H*', '300d06092a864886f70d0101010500'); // hex version of MA0GCSqGSIb3DQEBAQUA
+                    $RSAPrivateKey = pack(
+                        'Ca*a*Ca*a*',
+                        self::ASN1_INTEGER,
+                        "\01\00",
+                        $rsaOID,
+                        4,
+                        $this->_encodeLength(strlen($RSAPrivateKey)),
+                        $RSAPrivateKey
+                    );
+                    $RSAPrivateKey = pack('Ca*a*', self::ASN1_SEQUENCE, $this->_encodeLength(strlen($RSAPrivateKey)), $RSAPrivateKey);
+                    if (!empty($this->password) || is_string($this->password)) {
+                        $salt = Random::string(8);
+                        $iterationCount = 2048;
+
+                        $crypto = new DES();
+                        $crypto->setPassword($this->password, 'pbkdf1', 'md5', $salt, $iterationCount);
+                        $RSAPrivateKey = $crypto->encrypt($RSAPrivateKey);
+
+                        $parameters = pack(
+                            'Ca*a*Ca*N',
+                            self::ASN1_OCTETSTRING,
+                            $this->_encodeLength(strlen($salt)),
+                            $salt,
+                            self::ASN1_INTEGER,
+                            $this->_encodeLength(4),
+                            $iterationCount
+                        );
+                        $pbeWithMD5AndDES_CBC = "\x2a\x86\x48\x86\xf7\x0d\x01\x05\x03";
+
+                        $encryptionAlgorithm = pack(
+                            'Ca*a*Ca*a*',
+                            self::ASN1_OBJECT,
+                            $this->_encodeLength(strlen($pbeWithMD5AndDES_CBC)),
+                            $pbeWithMD5AndDES_CBC,
+                            self::ASN1_SEQUENCE,
+                            $this->_encodeLength(strlen($parameters)),
+                            $parameters
+                        );
+
+                        $RSAPrivateKey = pack(
+                            'Ca*a*Ca*a*',
+                            self::ASN1_SEQUENCE,
+                            $this->_encodeLength(strlen($encryptionAlgorithm)),
+                            $encryptionAlgorithm,
+                            self::ASN1_OCTETSTRING,
+                            $this->_encodeLength(strlen($RSAPrivateKey)),
+                            $RSAPrivateKey
+                        );
+
+                        $RSAPrivateKey = pack('Ca*a*', self::ASN1_SEQUENCE, $this->_encodeLength(strlen($RSAPrivateKey)), $RSAPrivateKey);
+
+                        $RSAPrivateKey = "-----BEGIN ENCRYPTED PRIVATE KEY-----\r\n" .
+                                         chunk_split(base64_encode($RSAPrivateKey), 64) .
+                                         '-----END ENCRYPTED PRIVATE KEY-----';
+                    } else {
+                        $RSAPrivateKey = "-----BEGIN PRIVATE KEY-----\r\n" .
+                                         chunk_split(base64_encode($RSAPrivateKey), 64) .
+                                         '-----END PRIVATE KEY-----';
+                    }
+                    return $RSAPrivateKey;
+                }
+
+                if (!empty($this->password) || is_string($this->password)) {
+                    $iv = Random::string(8);
+                    $symkey = pack('H*', md5($this->password . $iv)); // symkey is short for symmetric key
+                    $symkey.= substr(pack('H*', md5($symkey . $this->password . $iv)), 0, 8);
+                    $des = new TripleDES();
+                    $des->setKey($symkey);
+                    $des->setIV($iv);
+                    $iv = strtoupper(bin2hex($iv));
+                    $RSAPrivateKey = "-----BEGIN RSA PRIVATE KEY-----\r\n" .
+                                     "Proc-Type: 4,ENCRYPTED\r\n" .
+                                     "DEK-Info: DES-EDE3-CBC,$iv\r\n" .
+                                     "\r\n" .
+                                     chunk_split(base64_encode($des->encrypt($RSAPrivateKey)), 64) .
+                                     '-----END RSA PRIVATE KEY-----';
+                } else {
+                    $RSAPrivateKey = "-----BEGIN RSA PRIVATE KEY-----\r\n" .
+                                     chunk_split(base64_encode($RSAPrivateKey), 64) .
+                                     '-----END RSA PRIVATE KEY-----';
+                }
+
+                return $RSAPrivateKey;
+        }
+    }
+
+    /**
+     * Convert a public key to the appropriate format
+     *
+     * @access private
+     * @see self::setPublicKeyFormat()
+     * @param string $RSAPrivateKey
+     * @return string
+     */
+    function _convertPublicKey($n, $e)
+    {
+        $signed = $this->publicKeyFormat != self::PUBLIC_FORMAT_XML;
+
+        $modulus = $n->toBytes($signed);
+        $publicExponent = $e->toBytes($signed);
+
+        switch ($this->publicKeyFormat) {
+            case self::PUBLIC_FORMAT_RAW:
+                return array('e' => $e->copy(), 'n' => $n->copy());
+            case self::PUBLIC_FORMAT_XML:
+                return "<RSAKeyValue>\r\n" .
+                       '  <Modulus>' . base64_encode($modulus) . "</Modulus>\r\n" .
+                       '  <Exponent>' . base64_encode($publicExponent) . "</Exponent>\r\n" .
+                       '</RSAKeyValue>';
+                break;
+            case self::PUBLIC_FORMAT_OPENSSH:
+                // from <http://tools.ietf.org/html/rfc4253#page-15>:
+                // string    "ssh-rsa"
+                // mpint     e
+                // mpint     n
+                $RSAPublicKey = pack('Na*Na*Na*', strlen('ssh-rsa'), 'ssh-rsa', strlen($publicExponent), $publicExponent, strlen($modulus), $modulus);
+                $RSAPublicKey = 'ssh-rsa ' . base64_encode($RSAPublicKey) . ' ' . $this->comment;
+
+                return $RSAPublicKey;
+            default: // eg. self::PUBLIC_FORMAT_PKCS1_RAW or self::PUBLIC_FORMAT_PKCS1
+                // from <http://tools.ietf.org/html/rfc3447#appendix-A.1.1>:
+                // RSAPublicKey ::= SEQUENCE {
+                //     modulus           INTEGER,  -- n
+                //     publicExponent    INTEGER   -- e
+                // }
+                $components = array(
+                    'modulus' => pack('Ca*a*', self::ASN1_INTEGER, $this->_encodeLength(strlen($modulus)), $modulus),
+                    'publicExponent' => pack('Ca*a*', self::ASN1_INTEGER, $this->_encodeLength(strlen($publicExponent)), $publicExponent)
+                );
+
+                $RSAPublicKey = pack(
+                    'Ca*a*a*',
+                    self::ASN1_SEQUENCE,
+                    $this->_encodeLength(strlen($components['modulus']) + strlen($components['publicExponent'])),
+                    $components['modulus'],
+                    $components['publicExponent']
+                );
+
+                if ($this->publicKeyFormat == self::PUBLIC_FORMAT_PKCS1_RAW) {
+                    $RSAPublicKey = "-----BEGIN RSA PUBLIC KEY-----\r\n" .
+                                    chunk_split(base64_encode($RSAPublicKey), 64) .
+                                    '-----END RSA PUBLIC KEY-----';
+                } else {
+                    // sequence(oid(1.2.840.113549.1.1.1), null)) = rsaEncryption.
+                    $rsaOID = pack('H*', '300d06092a864886f70d0101010500'); // hex version of MA0GCSqGSIb3DQEBAQUA
+                    $RSAPublicKey = chr(0) . $RSAPublicKey;
+                    $RSAPublicKey = chr(3) . $this->_encodeLength(strlen($RSAPublicKey)) . $RSAPublicKey;
+
+                    $RSAPublicKey = pack(
+                        'Ca*a*',
+                        self::ASN1_SEQUENCE,
+                        $this->_encodeLength(strlen($rsaOID . $RSAPublicKey)),
+                        $rsaOID . $RSAPublicKey
+                    );
+
+                    $RSAPublicKey = "-----BEGIN PUBLIC KEY-----\r\n" .
+                                     chunk_split(base64_encode($RSAPublicKey), 64) .
+                                     '-----END PUBLIC KEY-----';
+                }
+
+                return $RSAPublicKey;
+        }
+    }
+
+    /**
+     * Break a public or private key down into its constituant components
+     *
+     * @access private
+     * @see self::_convertPublicKey()
+     * @see self::_convertPrivateKey()
+     * @param string $key
+     * @param int $type
+     * @return array
+     */
+    function _parseKey($key, $type)
+    {
+        if ($type != self::PUBLIC_FORMAT_RAW && !is_string($key)) {
+            return false;
+        }
+
+        switch ($type) {
+            case self::PUBLIC_FORMAT_RAW:
+                if (!is_array($key)) {
+                    return false;
+                }
+                $components = array();
+                switch (true) {
+                    case isset($key['e']):
+                        $components['publicExponent'] = $key['e']->copy();
+                        break;
+                    case isset($key['exponent']):
+                        $components['publicExponent'] = $key['exponent']->copy();
+                        break;
+                    case isset($key['publicExponent']):
+                        $components['publicExponent'] = $key['publicExponent']->copy();
+                        break;
+                    case isset($key[0]):
+                        $components['publicExponent'] = $key[0]->copy();
+                }
+                switch (true) {
+                    case isset($key['n']):
+                        $components['modulus'] = $key['n']->copy();
+                        break;
+                    case isset($key['modulo']):
+                        $components['modulus'] = $key['modulo']->copy();
+                        break;
+                    case isset($key['modulus']):
+                        $components['modulus'] = $key['modulus']->copy();
+                        break;
+                    case isset($key[1]):
+                        $components['modulus'] = $key[1]->copy();
+                }
+                return isset($components['modulus']) && isset($components['publicExponent']) ? $components : false;
+            case self::PRIVATE_FORMAT_PKCS1:
+            case self::PRIVATE_FORMAT_PKCS8:
+            case self::PUBLIC_FORMAT_PKCS1:
+                /* Although PKCS#1 proposes a format that public and private keys can use, encrypting them is
+                   "outside the scope" of PKCS#1.  PKCS#1 then refers you to PKCS#12 and PKCS#15 if you're wanting to
+                   protect private keys, however, that's not what OpenSSL* does.  OpenSSL protects private keys by adding
+                   two new "fields" to the key - DEK-Info and Proc-Type.  These fields are discussed here:
+
+                   http://tools.ietf.org/html/rfc1421#section-4.6.1.1
+                   http://tools.ietf.org/html/rfc1421#section-4.6.1.3
+
+                   DES-EDE3-CBC as an algorithm, however, is not discussed anywhere, near as I can tell.
+                   DES-CBC and DES-EDE are discussed in RFC1423, however, DES-EDE3-CBC isn't, nor is its key derivation
+                   function.  As is, the definitive authority on this encoding scheme isn't the IETF but rather OpenSSL's
+                   own implementation.  ie. the implementation *is* the standard and any bugs that may exist in that
+                   implementation are part of the standard, as well.
+
+                   * OpenSSL is the de facto standard.  It's utilized by OpenSSH and other projects */
+                if (preg_match('#DEK-Info: (.+),(.+)#', $key, $matches)) {
+                    $iv = pack('H*', trim($matches[2]));
+                    $symkey = pack('H*', md5($this->password . substr($iv, 0, 8))); // symkey is short for symmetric key
+                    $symkey.= pack('H*', md5($symkey . $this->password . substr($iv, 0, 8)));
+                    // remove the Proc-Type / DEK-Info sections as they're no longer needed
+                    $key = preg_replace('#^(?:Proc-Type|DEK-Info): .*#m', '', $key);
+                    $ciphertext = $this->_extractBER($key);
+                    if ($ciphertext === false) {
+                        $ciphertext = $key;
+                    }
+                    switch ($matches[1]) {
+                        case 'AES-256-CBC':
+                            $crypto = new AES();
+                            break;
+                        case 'AES-128-CBC':
+                            $symkey = substr($symkey, 0, 16);
+                            $crypto = new AES();
+                            break;
+                        case 'DES-EDE3-CFB':
+                            $crypto = new TripleDES(Base::MODE_CFB);
+                            break;
+                        case 'DES-EDE3-CBC':
+                            $symkey = substr($symkey, 0, 24);
+                            $crypto = new TripleDES();
+                            break;
+                        case 'DES-CBC':
+                            $crypto = new DES();
+                            break;
+                        default:
+                            return false;
+                    }
+                    $crypto->setKey($symkey);
+                    $crypto->setIV($iv);
+                    $decoded = $crypto->decrypt($ciphertext);
+                } else {
+                    $decoded = $this->_extractBER($key);
+                }
+
+                if ($decoded !== false) {
+                    $key = $decoded;
+                }
+
+                $components = array();
+
+                if (ord($this->_string_shift($key)) != self::ASN1_SEQUENCE) {
+                    return false;
+                }
+                if ($this->_decodeLength($key) != strlen($key)) {
+                    return false;
+                }
+
+                $tag = ord($this->_string_shift($key));
+                /* intended for keys for which OpenSSL's asn1parse returns the following:
+
+                    0:d=0  hl=4 l= 631 cons: SEQUENCE
+                    4:d=1  hl=2 l=   1 prim:  INTEGER           :00
+                    7:d=1  hl=2 l=  13 cons:  SEQUENCE
+                    9:d=2  hl=2 l=   9 prim:   OBJECT            :rsaEncryption
+                   20:d=2  hl=2 l=   0 prim:   NULL
+                   22:d=1  hl=4 l= 609 prim:  OCTET STRING
+
+                   ie. PKCS8 keys*/
+
+                if ($tag == self::ASN1_INTEGER && substr($key, 0, 3) == "\x01\x00\x30") {
+                    $this->_string_shift($key, 3);
+                    $tag = self::ASN1_SEQUENCE;
+                }
+
+                if ($tag == self::ASN1_SEQUENCE) {
+                    $temp = $this->_string_shift($key, $this->_decodeLength($key));
+                    if (ord($this->_string_shift($temp)) != self::ASN1_OBJECT) {
+                        return false;
+                    }
+                    $length = $this->_decodeLength($temp);
+                    switch ($this->_string_shift($temp, $length)) {
+                        case "\x2a\x86\x48\x86\xf7\x0d\x01\x01\x01": // rsaEncryption
+                            break;
+                        case "\x2a\x86\x48\x86\xf7\x0d\x01\x05\x03": // pbeWithMD5AndDES-CBC
+                            /*
+                               PBEParameter ::= SEQUENCE {
+                                   salt OCTET STRING (SIZE(8)),
+                                   iterationCount INTEGER }
+                            */
+                            if (ord($this->_string_shift($temp)) != self::ASN1_SEQUENCE) {
+                                return false;
+                            }
+                            if ($this->_decodeLength($temp) != strlen($temp)) {
+                                return false;
+                            }
+                            $this->_string_shift($temp); // assume it's an octet string
+                            $salt = $this->_string_shift($temp, $this->_decodeLength($temp));
+                            if (ord($this->_string_shift($temp)) != self::ASN1_INTEGER) {
+                                return false;
+                            }
+                            $this->_decodeLength($temp);
+                            list(, $iterationCount) = unpack('N', str_pad($temp, 4, chr(0), STR_PAD_LEFT));
+                            $this->_string_shift($key); // assume it's an octet string
+                            $length = $this->_decodeLength($key);
+                            if (strlen($key) != $length) {
+                                return false;
+                            }
+
+                            $crypto = new DES();
+                            $crypto->setPassword($this->password, 'pbkdf1', 'md5', $salt, $iterationCount);
+                            $key = $crypto->decrypt($key);
+                            if ($key === false) {
+                                return false;
+                            }
+                            return $this->_parseKey($key, self::PRIVATE_FORMAT_PKCS1);
+                        default:
+                            return false;
+                    }
+                    /* intended for keys for which OpenSSL's asn1parse returns the following:
+
+                        0:d=0  hl=4 l= 290 cons: SEQUENCE
+                        4:d=1  hl=2 l=  13 cons:  SEQUENCE
+                        6:d=2  hl=2 l=   9 prim:   OBJECT            :rsaEncryption
+                       17:d=2  hl=2 l=   0 prim:   NULL
+                       19:d=1  hl=4 l= 271 prim:  BIT STRING */
+                    $tag = ord($this->_string_shift($key)); // skip over the BIT STRING / OCTET STRING tag
+                    $this->_decodeLength($key); // skip over the BIT STRING / OCTET STRING length
+                    // "The initial octet shall encode, as an unsigned binary integer wtih bit 1 as the least significant bit, the number of
+                    //  unused bits in the final subsequent octet. The number shall be in the range zero to seven."
+                    //  -- http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf (section 8.6.2.2)
+                    if ($tag == self::ASN1_BITSTRING) {
+                        $this->_string_shift($key);
+                    }
+                    if (ord($this->_string_shift($key)) != self::ASN1_SEQUENCE) {
+                        return false;
+                    }
+                    if ($this->_decodeLength($key) != strlen($key)) {
+                        return false;
+                    }
+                    $tag = ord($this->_string_shift($key));
+                }
+                if ($tag != self::ASN1_INTEGER) {
+                    return false;
+                }
+
+                $length = $this->_decodeLength($key);
+                $temp = $this->_string_shift($key, $length);
+                if (strlen($temp) != 1 || ord($temp) > 2) {
+                    $components['modulus'] = new BigInteger($temp, 256);
+                    $this->_string_shift($key); // skip over self::ASN1_INTEGER
+                    $length = $this->_decodeLength($key);
+                    $components[$type == self::PUBLIC_FORMAT_PKCS1 ? 'publicExponent' : 'privateExponent'] = new BigInteger($this->_string_shift($key, $length), 256);
+
+                    return $components;
+                }
+                if (ord($this->_string_shift($key)) != self::ASN1_INTEGER) {
+                    return false;
+                }
+                $length = $this->_decodeLength($key);
+                $components['modulus'] = new BigInteger($this->_string_shift($key, $length), 256);
+                $this->_string_shift($key);
+                $length = $this->_decodeLength($key);
+                $components['publicExponent'] = new BigInteger($this->_string_shift($key, $length), 256);
+                $this->_string_shift($key);
+                $length = $this->_decodeLength($key);
+                $components['privateExponent'] = new BigInteger($this->_string_shift($key, $length), 256);
+                $this->_string_shift($key);
+                $length = $this->_decodeLength($key);
+                $components['primes'] = array(1 => new BigInteger($this->_string_shift($key, $length), 256));
+                $this->_string_shift($key);
+                $length = $this->_decodeLength($key);
+                $components['primes'][] = new BigInteger($this->_string_shift($key, $length), 256);
+                $this->_string_shift($key);
+                $length = $this->_decodeLength($key);
+                $components['exponents'] = array(1 => new BigInteger($this->_string_shift($key, $length), 256));
+                $this->_string_shift($key);
+                $length = $this->_decodeLength($key);
+                $components['exponents'][] = new BigInteger($this->_string_shift($key, $length), 256);
+                $this->_string_shift($key);
+                $length = $this->_decodeLength($key);
+                $components['coefficients'] = array(2 => new BigInteger($this->_string_shift($key, $length), 256));
+
+                if (!empty($key)) {
+                    if (ord($this->_string_shift($key)) != self::ASN1_SEQUENCE) {
+                        return false;
+                    }
+                    $this->_decodeLength($key);
+                    while (!empty($key)) {
+                        if (ord($this->_string_shift($key)) != self::ASN1_SEQUENCE) {
+                            return false;
+                        }
+                        $this->_decodeLength($key);
+                        $key = substr($key, 1);
+                        $length = $this->_decodeLength($key);
+                        $components['primes'][] = new BigInteger($this->_string_shift($key, $length), 256);
+                        $this->_string_shift($key);
+                        $length = $this->_decodeLength($key);
+                        $components['exponents'][] = new BigInteger($this->_string_shift($key, $length), 256);
+                        $this->_string_shift($key);
+                        $length = $this->_decodeLength($key);
+                        $components['coefficients'][] = new BigInteger($this->_string_shift($key, $length), 256);
+                    }
+                }
+
+                return $components;
+            case self::PUBLIC_FORMAT_OPENSSH:
+                $parts = explode(' ', $key, 3);
+
+                $key = isset($parts[1]) ? base64_decode($parts[1]) : false;
+                if ($key === false) {
+                    return false;
+                }
+
+                $comment = isset($parts[2]) ? $parts[2] : false;
+
+                $cleanup = substr($key, 0, 11) == "\0\0\0\7ssh-rsa";
+
+                if (strlen($key) <= 4) {
+                    return false;
+                }
+                extract(unpack('Nlength', $this->_string_shift($key, 4)));
+                $publicExponent = new BigInteger($this->_string_shift($key, $length), -256);
+                if (strlen($key) <= 4) {
+                    return false;
+                }
+                extract(unpack('Nlength', $this->_string_shift($key, 4)));
+                $modulus = new BigInteger($this->_string_shift($key, $length), -256);
+
+                if ($cleanup && strlen($key)) {
+                    if (strlen($key) <= 4) {
+                        return false;
+                    }
+                    extract(unpack('Nlength', $this->_string_shift($key, 4)));
+                    $realModulus = new BigInteger($this->_string_shift($key, $length), -256);
+                    return strlen($key) ? false : array(
+                        'modulus' => $realModulus,
+                        'publicExponent' => $modulus,
+                        'comment' => $comment
+                    );
+                } else {
+                    return strlen($key) ? false : array(
+                        'modulus' => $modulus,
+                        'publicExponent' => $publicExponent,
+                        'comment' => $comment
+                    );
+                }
+            // http://www.w3.org/TR/xmldsig-core/#sec-RSAKeyValue
+            // http://en.wikipedia.org/wiki/XML_Signature
+            case self::PRIVATE_FORMAT_XML:
+            case self::PUBLIC_FORMAT_XML:
+                $this->components = array();
+
+                $xml = xml_parser_create('UTF-8');
+                xml_set_object($xml, $this);
+                xml_set_element_handler($xml, '_start_element_handler', '_stop_element_handler');
+                xml_set_character_data_handler($xml, '_data_handler');
+                // add <xml></xml> to account for "dangling" tags like <BitStrength>...</BitStrength> that are sometimes added
+                if (!xml_parse($xml, '<xml>' . $key . '</xml>')) {
+                    return false;
+                }
+
+                return isset($this->components['modulus']) && isset($this->components['publicExponent']) ? $this->components : false;
+            // from PuTTY's SSHPUBK.C
+            case self::PRIVATE_FORMAT_PUTTY:
+                $components = array();
+                $key = preg_split('#\r\n|\r|\n#', $key);
+                $type = trim(preg_replace('#PuTTY-User-Key-File-2: (.+)#', '$1', $key[0]));
+                if ($type != 'ssh-rsa') {
+                    return false;
+                }
+                $encryption = trim(preg_replace('#Encryption: (.+)#', '$1', $key[1]));
+                $comment = trim(preg_replace('#Comment: (.+)#', '$1', $key[2]));
+
+                $publicLength = trim(preg_replace('#Public-Lines: (\d+)#', '$1', $key[3]));
+                $public = base64_decode(implode('', array_map('trim', array_slice($key, 4, $publicLength))));
+                $public = substr($public, 11);
+                extract(unpack('Nlength', $this->_string_shift($public, 4)));
+                $components['publicExponent'] = new BigInteger($this->_string_shift($public, $length), -256);
+                extract(unpack('Nlength', $this->_string_shift($public, 4)));
+                $components['modulus'] = new BigInteger($this->_string_shift($public, $length), -256);
+
+                $privateLength = trim(preg_replace('#Private-Lines: (\d+)#', '$1', $key[$publicLength + 4]));
+                $private = base64_decode(implode('', array_map('trim', array_slice($key, $publicLength + 5, $privateLength))));
+
+                switch ($encryption) {
+                    case 'aes256-cbc':
+                        $symkey = '';
+                        $sequence = 0;
+                        while (strlen($symkey) < 32) {
+                            $temp = pack('Na*', $sequence++, $this->password);
+                            $symkey.= pack('H*', sha1($temp));
+                        }
+                        $symkey = substr($symkey, 0, 32);
+                        $crypto = new AES();
+                }
+
+                if ($encryption != 'none') {
+                    $crypto->setKey($symkey);
+                    $crypto->disablePadding();
+                    $private = $crypto->decrypt($private);
+                    if ($private === false) {
+                        return false;
+                    }
+                }
+
+                extract(unpack('Nlength', $this->_string_shift($private, 4)));
+                if (strlen($private) < $length) {
+                    return false;
+                }
+                $components['privateExponent'] = new BigInteger($this->_string_shift($private, $length), -256);
+                extract(unpack('Nlength', $this->_string_shift($private, 4)));
+                if (strlen($private) < $length) {
+                    return false;
+                }
+                $components['primes'] = array(1 => new BigInteger($this->_string_shift($private, $length), -256));
+                extract(unpack('Nlength', $this->_string_shift($private, 4)));
+                if (strlen($private) < $length) {
+                    return false;
+                }
+                $components['primes'][] = new BigInteger($this->_string_shift($private, $length), -256);
+
+                $temp = $components['primes'][1]->subtract($this->one);
+                $components['exponents'] = array(1 => $components['publicExponent']->modInverse($temp));
+                $temp = $components['primes'][2]->subtract($this->one);
+                $components['exponents'][] = $components['publicExponent']->modInverse($temp);
+
+                extract(unpack('Nlength', $this->_string_shift($private, 4)));
+                if (strlen($private) < $length) {
+                    return false;
+                }
+                $components['coefficients'] = array(2 => new BigInteger($this->_string_shift($private, $length), -256));
+
+                return $components;
+        }
+    }
+
+    /**
+     * Returns the key size
+     *
+     * More specifically, this returns the size of the modulo in bits.
+     *
+     * @access public
+     * @return int
+     */
+    function getSize()
+    {
+        return !isset($this->modulus) ? 0 : strlen($this->modulus->toBits());
+    }
+
+    /**
+     * Start Element Handler
+     *
+     * Called by xml_set_element_handler()
+     *
+     * @access private
+     * @param resource $parser
+     * @param string $name
+     * @param array $attribs
+     */
+    function _start_element_handler($parser, $name, $attribs)
+    {
+        //$name = strtoupper($name);
+        switch ($name) {
+            case 'MODULUS':
+                $this->current = &$this->components['modulus'];
+                break;
+            case 'EXPONENT':
+                $this->current = &$this->components['publicExponent'];
+                break;
+            case 'P':
+                $this->current = &$this->components['primes'][1];
+                break;
+            case 'Q':
+                $this->current = &$this->components['primes'][2];
+                break;
+            case 'DP':
+                $this->current = &$this->components['exponents'][1];
+                break;
+            case 'DQ':
+                $this->current = &$this->components['exponents'][2];
+                break;
+            case 'INVERSEQ':
+                $this->current = &$this->components['coefficients'][2];
+                break;
+            case 'D':
+                $this->current = &$this->components['privateExponent'];
+        }
+        $this->current = '';
+    }
+
+    /**
+     * Stop Element Handler
+     *
+     * Called by xml_set_element_handler()
+     *
+     * @access private
+     * @param resource $parser
+     * @param string $name
+     */
+    function _stop_element_handler($parser, $name)
+    {
+        if (isset($this->current)) {
+            $this->current = new BigInteger(base64_decode($this->current), 256);
+            unset($this->current);
+        }
+    }
+
+    /**
+     * Data Handler
+     *
+     * Called by xml_set_character_data_handler()
+     *
+     * @access private
+     * @param resource $parser
+     * @param string $data
+     */
+    function _data_handler($parser, $data)
+    {
+        if (!isset($this->current) || is_object($this->current)) {
+            return;
+        }
+        $this->current.= trim($data);
+    }
+
+    /**
+     * Loads a public or private key
+     *
+     * Returns true on success and false on failure (ie. an incorrect password was provided or the key was malformed)
+     *
+     * @access public
+     * @param string $key
+     * @param int $type optional
+     */
+    function loadKey($key, $type = false)
+    {
+        if ($key instanceof RSA) {
+            $this->privateKeyFormat = $key->privateKeyFormat;
+            $this->publicKeyFormat = $key->publicKeyFormat;
+            $this->k = $key->k;
+            $this->hLen = $key->hLen;
+            $this->sLen = $key->sLen;
+            $this->mgfHLen = $key->mgfHLen;
+            $this->encryptionMode = $key->encryptionMode;
+            $this->signatureMode = $key->signatureMode;
+            $this->password = $key->password;
+            $this->configFile = $key->configFile;
+            $this->comment = $key->comment;
+
+            if (is_object($key->hash)) {
+                $this->hash = new Hash($key->hash->getHash());
+            }
+            if (is_object($key->mgfHash)) {
+                $this->mgfHash = new Hash($key->mgfHash->getHash());
+            }
+
+            if (is_object($key->modulus)) {
+                $this->modulus = $key->modulus->copy();
+            }
+            if (is_object($key->exponent)) {
+                $this->exponent = $key->exponent->copy();
+            }
+            if (is_object($key->publicExponent)) {
+                $this->publicExponent = $key->publicExponent->copy();
+            }
+
+            $this->primes = array();
+            $this->exponents = array();
+            $this->coefficients = array();
+
+            foreach ($this->primes as $prime) {
+                $this->primes[] = $prime->copy();
+            }
+            foreach ($this->exponents as $exponent) {
+                $this->exponents[] = $exponent->copy();
+            }
+            foreach ($this->coefficients as $coefficient) {
+                $this->coefficients[] = $coefficient->copy();
+            }
+
+            return true;
+        }
+
+        if ($type === false) {
+            $types = array(
+                self::PUBLIC_FORMAT_RAW,
+                self::PRIVATE_FORMAT_PKCS1,
+                self::PRIVATE_FORMAT_XML,
+                self::PRIVATE_FORMAT_PUTTY,
+                self::PUBLIC_FORMAT_OPENSSH
+            );
+            foreach ($types as $type) {
+                $components = $this->_parseKey($key, $type);
+                if ($components !== false) {
+                    break;
+                }
+            }
+        } else {
+            $components = $this->_parseKey($key, $type);
+        }
+
+        if ($components === false) {
+            $this->comment = null;
+            $this->modulus = null;
+            $this->k = null;
+            $this->exponent = null;
+            $this->primes = null;
+            $this->exponents = null;
+            $this->coefficients = null;
+            $this->publicExponent = null;
+
+            return false;
+        }
+
+        if (isset($components['comment']) && $components['comment'] !== false) {
+            $this->comment = $components['comment'];
+        }
+        $this->modulus = $components['modulus'];
+        $this->k = strlen($this->modulus->toBytes());
+        $this->exponent = isset($components['privateExponent']) ? $components['privateExponent'] : $components['publicExponent'];
+        if (isset($components['primes'])) {
+            $this->primes = $components['primes'];
+            $this->exponents = $components['exponents'];
+            $this->coefficients = $components['coefficients'];
+            $this->publicExponent = $components['publicExponent'];
+        } else {
+            $this->primes = array();
+            $this->exponents = array();
+            $this->coefficients = array();
+            $this->publicExponent = false;
+        }
+
+        switch ($type) {
+            case self::PUBLIC_FORMAT_OPENSSH:
+            case self::PUBLIC_FORMAT_RAW:
+                $this->setPublicKey();
+                break;
+            case self::PRIVATE_FORMAT_PKCS1:
+                switch (true) {
+                    case strpos($key, '-BEGIN PUBLIC KEY-') !== false:
+                    case strpos($key, '-BEGIN RSA PUBLIC KEY-') !== false:
+                        $this->setPublicKey();
+                }
+        }
+
+        return true;
+    }
+
+    /**
+     * Sets the password
+     *
+     * Private keys can be encrypted with a password.  To unset the password, pass in the empty string or false.
+     * Or rather, pass in $password such that empty($password) && !is_string($password) is true.
+     *
+     * @see self::createKey()
+     * @see self::loadKey()
+     * @access public
+     * @param string $password
+     */
+    function setPassword($password = false)
+    {
+        $this->password = $password;
+    }
+
+    /**
+     * Defines the public key
+     *
+     * Some private key formats define the public exponent and some don't.  Those that don't define it are problematic when
+     * used in certain contexts.  For example, in SSH-2, RSA authentication works by sending the public key along with a
+     * message signed by the private key to the server.  The SSH-2 server looks the public key up in an index of public keys
+     * and if it's present then proceeds to verify the signature.  Problem is, if your private key doesn't include the public
+     * exponent this won't work unless you manually add the public exponent. phpseclib tries to guess if the key being used
+     * is the public key but in the event that it guesses incorrectly you might still want to explicitly set the key as being
+     * public.
+     *
+     * Do note that when a new key is loaded the index will be cleared.
+     *
+     * Returns true on success, false on failure
+     *
+     * @see self::getPublicKey()
+     * @access public
+     * @param string $key optional
+     * @param int $type optional
+     * @return bool
+     */
+    function setPublicKey($key = false, $type = false)
+    {
+        // if a public key has already been loaded return false
+        if (!empty($this->publicExponent)) {
+            return false;
+        }
+
+        if ($key === false && !empty($this->modulus)) {
+            $this->publicExponent = $this->exponent;
+            return true;
+        }
+
+        if ($type === false) {
+            $types = array(
+                self::PUBLIC_FORMAT_RAW,
+                self::PUBLIC_FORMAT_PKCS1,
+                self::PUBLIC_FORMAT_XML,
+                self::PUBLIC_FORMAT_OPENSSH
+            );
+            foreach ($types as $type) {
+                $components = $this->_parseKey($key, $type);
+                if ($components !== false) {
+                    break;
+                }
+            }
+        } else {
+            $components = $this->_parseKey($key, $type);
+        }
+
+        if ($components === false) {
+            return false;
+        }
+
+        if (empty($this->modulus) || !$this->modulus->equals($components['modulus'])) {
+            $this->modulus = $components['modulus'];
+            $this->exponent = $this->publicExponent = $components['publicExponent'];
+            return true;
+        }
+
+        $this->publicExponent = $components['publicExponent'];
+
+        return true;
+    }
+
+    /**
+     * Defines the private key
+     *
+     * If phpseclib guessed a private key was a public key and loaded it as such it might be desirable to force
+     * phpseclib to treat the key as a private key. This function will do that.
+     *
+     * Do note that when a new key is loaded the index will be cleared.
+     *
+     * Returns true on success, false on failure
+     *
+     * @see self::getPublicKey()
+     * @access public
+     * @param string $key optional
+     * @param int $type optional
+     * @return bool
+     */
+    function setPrivateKey($key = false, $type = false)
+    {
+        if ($key === false && !empty($this->publicExponent)) {
+            $this->publicExponent = false;
+            return true;
+        }
+
+        $rsa = new RSA();
+        if (!$rsa->loadKey($key, $type)) {
+            return false;
+        }
+        $rsa->publicExponent = false;
+
+        // don't overwrite the old key if the new key is invalid
+        $this->loadKey($rsa);
+        return true;
+    }
+
+    /**
+     * Returns the public key
+     *
+     * The public key is only returned under two circumstances - if the private key had the public key embedded within it
+     * or if the public key was set via setPublicKey().  If the currently loaded key is supposed to be the public key this
+     * function won't return it since this library, for the most part, doesn't distinguish between public and private keys.
+     *
+     * @see self::getPublicKey()
+     * @access public
+     * @param string $key
+     * @param int $type optional
+     */
+    function getPublicKey($type = self::PUBLIC_FORMAT_PKCS8)
+    {
+        if (empty($this->modulus) || empty($this->publicExponent)) {
+            return false;
+        }
+
+        $oldFormat = $this->publicKeyFormat;
+        $this->publicKeyFormat = $type;
+        $temp = $this->_convertPublicKey($this->modulus, $this->publicExponent);
+        $this->publicKeyFormat = $oldFormat;
+        return $temp;
+    }
+
+    /**
+     * Returns the public key's fingerprint
+     *
+     * The public key's fingerprint is returned, which is equivalent to running `ssh-keygen -lf rsa.pub`. If there is
+     * no public key currently loaded, false is returned.
+     * Example output (md5): "c1:b1:30:29:d7:b8:de:6c:97:77:10:d7:46:41:63:87" (as specified by RFC 4716)
+     *
+     * @access public
+     * @param string $algorithm The hashing algorithm to be used. Valid options are 'md5' and 'sha256'. False is returned
+     * for invalid values.
+     * @return mixed
+     */
+    function getPublicKeyFingerprint($algorithm = 'md5')
+    {
+        if (empty($this->modulus) || empty($this->publicExponent)) {
+            return false;
+        }
+
+        $modulus = $this->modulus->toBytes(true);
+        $publicExponent = $this->publicExponent->toBytes(true);
+
+        $RSAPublicKey = pack('Na*Na*Na*', strlen('ssh-rsa'), 'ssh-rsa', strlen($publicExponent), $publicExponent, strlen($modulus), $modulus);
+
+        switch ($algorithm) {
+            case 'sha256':
+                $hash = new Hash('sha256');
+                $base = base64_encode($hash->hash($RSAPublicKey));
+                return substr($base, 0, strlen($base) - 1);
+            case 'md5':
+                return substr(chunk_split(md5($RSAPublicKey), 2, ':'), 0, -1);
+            default:
+                return false;
+        }
+    }
+
+    /**
+     * Returns the private key
+     *
+     * The private key is only returned if the currently loaded key contains the constituent prime numbers.
+     *
+     * @see self::getPublicKey()
+     * @access public
+     * @param string $key
+     * @param int $type optional
+     * @return mixed
+     */
+    function getPrivateKey($type = self::PUBLIC_FORMAT_PKCS1)
+    {
+        if (empty($this->primes)) {
+            return false;
+        }
+
+        $oldFormat = $this->privateKeyFormat;
+        $this->privateKeyFormat = $type;
+        $temp = $this->_convertPrivateKey($this->modulus, $this->publicExponent, $this->exponent, $this->primes, $this->exponents, $this->coefficients);
+        $this->privateKeyFormat = $oldFormat;
+        return $temp;
+    }
+
+    /**
+     * Returns a minimalistic private key
+     *
+     * Returns the private key without the prime number constituants.  Structurally identical to a public key that
+     * hasn't been set as the public key
+     *
+     * @see self::getPrivateKey()
+     * @access private
+     * @param string $key
+     * @param int $type optional
+     */
+    function _getPrivatePublicKey($mode = self::PUBLIC_FORMAT_PKCS8)
+    {
+        if (empty($this->modulus) || empty($this->exponent)) {
+            return false;
+        }
+
+        $oldFormat = $this->publicKeyFormat;
+        $this->publicKeyFormat = $mode;
+        $temp = $this->_convertPublicKey($this->modulus, $this->exponent);
+        $this->publicKeyFormat = $oldFormat;
+        return $temp;
+    }
+
+    /**
+     *  __toString() magic method
+     *
+     * @access public
+     * @return string
+     */
+    function __toString()
+    {
+        $key = $this->getPrivateKey($this->privateKeyFormat);
+        if ($key !== false) {
+            return $key;
+        }
+        $key = $this->_getPrivatePublicKey($this->publicKeyFormat);
+        return $key !== false ? $key : '';
+    }
+
+    /**
+     *  __clone() magic method
+     *
+     * @access public
+     * @return Crypt_RSA
+     */
+    function __clone()
+    {
+        $key = new RSA();
+        $key->loadKey($this);
+        return $key;
+    }
+
+    /**
+     * Generates the smallest and largest numbers requiring $bits bits
+     *
+     * @access private
+     * @param int $bits
+     * @return array
+     */
+    function _generateMinMax($bits)
+    {
+        $bytes = $bits >> 3;
+        $min = str_repeat(chr(0), $bytes);
+        $max = str_repeat(chr(0xFF), $bytes);
+        $msb = $bits & 7;
+        if ($msb) {
+            $min = chr(1 << ($msb - 1)) . $min;
+            $max = chr((1 << $msb) - 1) . $max;
+        } else {
+            $min[0] = chr(0x80);
+        }
+
+        return array(
+            'min' => new BigInteger($min, 256),
+            'max' => new BigInteger($max, 256)
+        );
+    }
+
+    /**
+     * DER-decode the length
+     *
+     * DER supports lengths up to (2**8)**127, however, we'll only support lengths up to (2**8)**4.  See
+     * {@link http://itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf#p=13 X.690 paragraph 8.1.3} for more information.
+     *
+     * @access private
+     * @param string $string
+     * @return int
+     */
+    function _decodeLength(&$string)
+    {
+        $length = ord($this->_string_shift($string));
+        if ($length & 0x80) { // definite length, long form
+            $length&= 0x7F;
+            $temp = $this->_string_shift($string, $length);
+            list(, $length) = unpack('N', substr(str_pad($temp, 4, chr(0), STR_PAD_LEFT), -4));
+        }
+        return $length;
+    }
+
+    /**
+     * DER-encode the length
+     *
+     * DER supports lengths up to (2**8)**127, however, we'll only support lengths up to (2**8)**4.  See
+     * {@link http://itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf#p=13 X.690 paragraph 8.1.3} for more information.
+     *
+     * @access private
+     * @param int $length
+     * @return string
+     */
+    function _encodeLength($length)
+    {
+        if ($length <= 0x7F) {
+            return chr($length);
+        }
+
+        $temp = ltrim(pack('N', $length), chr(0));
+        return pack('Ca*', 0x80 | strlen($temp), $temp);
+    }
+
+    /**
+     * String Shift
+     *
+     * Inspired by array_shift
+     *
+     * @param string $string
+     * @param int $index
+     * @return string
+     * @access private
+     */
+    function _string_shift(&$string, $index = 1)
+    {
+        $substr = substr($string, 0, $index);
+        $string = substr($string, $index);
+        return $substr;
+    }
+
+    /**
+     * Determines the private key format
+     *
+     * @see self::createKey()
+     * @access public
+     * @param int $format
+     */
+    function setPrivateKeyFormat($format)
+    {
+        $this->privateKeyFormat = $format;
+    }
+
+    /**
+     * Determines the public key format
+     *
+     * @see self::createKey()
+     * @access public
+     * @param int $format
+     */
+    function setPublicKeyFormat($format)
+    {
+        $this->publicKeyFormat = $format;
+    }
+
+    /**
+     * Determines which hashing function should be used
+     *
+     * Used with signature production / verification and (if the encryption mode is self::ENCRYPTION_OAEP) encryption and
+     * decryption.  If $hash isn't supported, sha1 is used.
+     *
+     * @access public
+     * @param string $hash
+     */
+    function setHash($hash)
+    {
+        // \phpseclib\Crypt\Hash supports algorithms that PKCS#1 doesn't support.  md5-96 and sha1-96, for example.
+        switch ($hash) {
+            case 'md2':
+            case 'md5':
+            case 'sha1':
+            case 'sha256':
+            case 'sha384':
+            case 'sha512':
+                $this->hash = new Hash($hash);
+                $this->hashName = $hash;
+                break;
+            default:
+                $this->hash = new Hash('sha1');
+                $this->hashName = 'sha1';
+        }
+        $this->hLen = $this->hash->getLength();
+    }
+
+    /**
+     * Determines which hashing function should be used for the mask generation function
+     *
+     * The mask generation function is used by self::ENCRYPTION_OAEP and self::SIGNATURE_PSS and although it's
+     * best if Hash and MGFHash are set to the same thing this is not a requirement.
+     *
+     * @access public
+     * @param string $hash
+     */
+    function setMGFHash($hash)
+    {
+        // \phpseclib\Crypt\Hash supports algorithms that PKCS#1 doesn't support.  md5-96 and sha1-96, for example.
+        switch ($hash) {
+            case 'md2':
+            case 'md5':
+            case 'sha1':
+            case 'sha256':
+            case 'sha384':
+            case 'sha512':
+                $this->mgfHash = new Hash($hash);
+                break;
+            default:
+                $this->mgfHash = new Hash('sha1');
+        }
+        $this->mgfHLen = $this->mgfHash->getLength();
+    }
+
+    /**
+     * Determines the salt length
+     *
+     * To quote from {@link http://tools.ietf.org/html/rfc3447#page-38 RFC3447#page-38}:
+     *
+     *    Typical salt lengths in octets are hLen (the length of the output
+     *    of the hash function Hash) and 0.
+     *
+     * @access public
+     * @param int $format
+     */
+    function setSaltLength($sLen)
+    {
+        $this->sLen = $sLen;
+    }
+
+    /**
+     * Integer-to-Octet-String primitive
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-4.1 RFC3447#section-4.1}.
+     *
+     * @access private
+     * @param \phpseclib\Math\BigInteger $x
+     * @param int $xLen
+     * @return string
+     */
+    function _i2osp($x, $xLen)
+    {
+        $x = $x->toBytes();
+        if (strlen($x) > $xLen) {
+            user_error('Integer too large');
+            return false;
+        }
+        return str_pad($x, $xLen, chr(0), STR_PAD_LEFT);
+    }
+
+    /**
+     * Octet-String-to-Integer primitive
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-4.2 RFC3447#section-4.2}.
+     *
+     * @access private
+     * @param string $x
+     * @return \phpseclib\Math\BigInteger
+     */
+    function _os2ip($x)
+    {
+        return new BigInteger($x, 256);
+    }
+
+    /**
+     * Exponentiate with or without Chinese Remainder Theorem
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-5.1.1 RFC3447#section-5.1.2}.
+     *
+     * @access private
+     * @param \phpseclib\Math\BigInteger $x
+     * @return \phpseclib\Math\BigInteger
+     */
+    function _exponentiate($x)
+    {
+        switch (true) {
+            case empty($this->primes):
+            case $this->primes[1]->equals($this->zero):
+            case empty($this->coefficients):
+            case $this->coefficients[2]->equals($this->zero):
+            case empty($this->exponents):
+            case $this->exponents[1]->equals($this->zero):
+                return $x->modPow($this->exponent, $this->modulus);
+        }
+
+        $num_primes = count($this->primes);
+
+        if (defined('CRYPT_RSA_DISABLE_BLINDING')) {
+            $m_i = array(
+                1 => $x->modPow($this->exponents[1], $this->primes[1]),
+                2 => $x->modPow($this->exponents[2], $this->primes[2])
+            );
+            $h = $m_i[1]->subtract($m_i[2]);
+            $h = $h->multiply($this->coefficients[2]);
+            list(, $h) = $h->divide($this->primes[1]);
+            $m = $m_i[2]->add($h->multiply($this->primes[2]));
+
+            $r = $this->primes[1];
+            for ($i = 3; $i <= $num_primes; $i++) {
+                $m_i = $x->modPow($this->exponents[$i], $this->primes[$i]);
+
+                $r = $r->multiply($this->primes[$i - 1]);
+
+                $h = $m_i->subtract($m);
+                $h = $h->multiply($this->coefficients[$i]);
+                list(, $h) = $h->divide($this->primes[$i]);
+
+                $m = $m->add($r->multiply($h));
+            }
+        } else {
+            $smallest = $this->primes[1];
+            for ($i = 2; $i <= $num_primes; $i++) {
+                if ($smallest->compare($this->primes[$i]) > 0) {
+                    $smallest = $this->primes[$i];
+                }
+            }
+
+            $one = new BigInteger(1);
+
+            $r = $one->random($one, $smallest->subtract($one));
+
+            $m_i = array(
+                1 => $this->_blind($x, $r, 1),
+                2 => $this->_blind($x, $r, 2)
+            );
+            $h = $m_i[1]->subtract($m_i[2]);
+            $h = $h->multiply($this->coefficients[2]);
+            list(, $h) = $h->divide($this->primes[1]);
+            $m = $m_i[2]->add($h->multiply($this->primes[2]));
+
+            $r = $this->primes[1];
+            for ($i = 3; $i <= $num_primes; $i++) {
+                $m_i = $this->_blind($x, $r, $i);
+
+                $r = $r->multiply($this->primes[$i - 1]);
+
+                $h = $m_i->subtract($m);
+                $h = $h->multiply($this->coefficients[$i]);
+                list(, $h) = $h->divide($this->primes[$i]);
+
+                $m = $m->add($r->multiply($h));
+            }
+        }
+
+        return $m;
+    }
+
+    /**
+     * Performs RSA Blinding
+     *
+     * Protects against timing attacks by employing RSA Blinding.
+     * Returns $x->modPow($this->exponents[$i], $this->primes[$i])
+     *
+     * @access private
+     * @param \phpseclib\Math\BigInteger $x
+     * @param \phpseclib\Math\BigInteger $r
+     * @param int $i
+     * @return \phpseclib\Math\BigInteger
+     */
+    function _blind($x, $r, $i)
+    {
+        $x = $x->multiply($r->modPow($this->publicExponent, $this->primes[$i]));
+        $x = $x->modPow($this->exponents[$i], $this->primes[$i]);
+
+        $r = $r->modInverse($this->primes[$i]);
+        $x = $x->multiply($r);
+        list(, $x) = $x->divide($this->primes[$i]);
+
+        return $x;
+    }
+
+    /**
+     * Performs blinded RSA equality testing
+     *
+     * Protects against a particular type of timing attack described.
+     *
+     * See {@link http://codahale.com/a-lesson-in-timing-attacks/ A Lesson In Timing Attacks (or, Don't use MessageDigest.isEquals)}
+     *
+     * Thanks for the heads up singpolyma!
+     *
+     * @access private
+     * @param string $x
+     * @param string $y
+     * @return bool
+     */
+    function _equals($x, $y)
+    {
+        if (strlen($x) != strlen($y)) {
+            return false;
+        }
+
+        $result = 0;
+        for ($i = 0; $i < strlen($x); $i++) {
+            $result |= ord($x[$i]) ^ ord($y[$i]);
+        }
+
+        return $result == 0;
+    }
+
+    /**
+     * RSAEP
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-5.1.1 RFC3447#section-5.1.1}.
+     *
+     * @access private
+     * @param \phpseclib\Math\BigInteger $m
+     * @return \phpseclib\Math\BigInteger
+     */
+    function _rsaep($m)
+    {
+        if ($m->compare($this->zero) < 0 || $m->compare($this->modulus) > 0) {
+            user_error('Message representative out of range');
+            return false;
+        }
+        return $this->_exponentiate($m);
+    }
+
+    /**
+     * RSADP
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-5.1.2 RFC3447#section-5.1.2}.
+     *
+     * @access private
+     * @param \phpseclib\Math\BigInteger $c
+     * @return \phpseclib\Math\BigInteger
+     */
+    function _rsadp($c)
+    {
+        if ($c->compare($this->zero) < 0 || $c->compare($this->modulus) > 0) {
+            user_error('Ciphertext representative out of range');
+            return false;
+        }
+        return $this->_exponentiate($c);
+    }
+
+    /**
+     * RSASP1
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-5.2.1 RFC3447#section-5.2.1}.
+     *
+     * @access private
+     * @param \phpseclib\Math\BigInteger $m
+     * @return \phpseclib\Math\BigInteger
+     */
+    function _rsasp1($m)
+    {
+        if ($m->compare($this->zero) < 0 || $m->compare($this->modulus) > 0) {
+            user_error('Message representative out of range');
+            return false;
+        }
+        return $this->_exponentiate($m);
+    }
+
+    /**
+     * RSAVP1
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-5.2.2 RFC3447#section-5.2.2}.
+     *
+     * @access private
+     * @param \phpseclib\Math\BigInteger $s
+     * @return \phpseclib\Math\BigInteger
+     */
+    function _rsavp1($s)
+    {
+        if ($s->compare($this->zero) < 0 || $s->compare($this->modulus) > 0) {
+            user_error('Signature representative out of range');
+            return false;
+        }
+        return $this->_exponentiate($s);
+    }
+
+    /**
+     * MGF1
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#appendix-B.2.1 RFC3447#appendix-B.2.1}.
+     *
+     * @access private
+     * @param string $mgfSeed
+     * @param int $mgfLen
+     * @return string
+     */
+    function _mgf1($mgfSeed, $maskLen)
+    {
+        // if $maskLen would yield strings larger than 4GB, PKCS#1 suggests a "Mask too long" error be output.
+
+        $t = '';
+        $count = ceil($maskLen / $this->mgfHLen);
+        for ($i = 0; $i < $count; $i++) {
+            $c = pack('N', $i);
+            $t.= $this->mgfHash->hash($mgfSeed . $c);
+        }
+
+        return substr($t, 0, $maskLen);
+    }
+
+    /**
+     * RSAES-OAEP-ENCRYPT
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-7.1.1 RFC3447#section-7.1.1} and
+     * {http://en.wikipedia.org/wiki/Optimal_Asymmetric_Encryption_Padding OAES}.
+     *
+     * @access private
+     * @param string $m
+     * @param string $l
+     * @return string
+     */
+    function _rsaes_oaep_encrypt($m, $l = '')
+    {
+        $mLen = strlen($m);
+
+        // Length checking
+
+        // if $l is larger than two million terrabytes and you're using sha1, PKCS#1 suggests a "Label too long" error
+        // be output.
+
+        if ($mLen > $this->k - 2 * $this->hLen - 2) {
+            user_error('Message too long');
+            return false;
+        }
+
+        // EME-OAEP encoding
+
+        $lHash = $this->hash->hash($l);
+        $ps = str_repeat(chr(0), $this->k - $mLen - 2 * $this->hLen - 2);
+        $db = $lHash . $ps . chr(1) . $m;
+        $seed = Random::string($this->hLen);
+        $dbMask = $this->_mgf1($seed, $this->k - $this->hLen - 1);
+        $maskedDB = $db ^ $dbMask;
+        $seedMask = $this->_mgf1($maskedDB, $this->hLen);
+        $maskedSeed = $seed ^ $seedMask;
+        $em = chr(0) . $maskedSeed . $maskedDB;
+
+        // RSA encryption
+
+        $m = $this->_os2ip($em);
+        $c = $this->_rsaep($m);
+        $c = $this->_i2osp($c, $this->k);
+
+        // Output the ciphertext C
+
+        return $c;
+    }
+
+    /**
+     * RSAES-OAEP-DECRYPT
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-7.1.2 RFC3447#section-7.1.2}.  The fact that the error
+     * messages aren't distinguishable from one another hinders debugging, but, to quote from RFC3447#section-7.1.2:
+     *
+     *    Note.  Care must be taken to ensure that an opponent cannot
+     *    distinguish the different error conditions in Step 3.g, whether by
+     *    error message or timing, or, more generally, learn partial
+     *    information about the encoded message EM.  Otherwise an opponent may
+     *    be able to obtain useful information about the decryption of the
+     *    ciphertext C, leading to a chosen-ciphertext attack such as the one
+     *    observed by Manger [36].
+     *
+     * As for $l...  to quote from {@link http://tools.ietf.org/html/rfc3447#page-17 RFC3447#page-17}:
+     *
+     *    Both the encryption and the decryption operations of RSAES-OAEP take
+     *    the value of a label L as input.  In this version of PKCS #1, L is
+     *    the empty string; other uses of the label are outside the scope of
+     *    this document.
+     *
+     * @access private
+     * @param string $c
+     * @param string $l
+     * @return string
+     */
+    function _rsaes_oaep_decrypt($c, $l = '')
+    {
+        // Length checking
+
+        // if $l is larger than two million terrabytes and you're using sha1, PKCS#1 suggests a "Label too long" error
+        // be output.
+
+        if (strlen($c) != $this->k || $this->k < 2 * $this->hLen + 2) {
+            user_error('Decryption error');
+            return false;
+        }
+
+        // RSA decryption
+
+        $c = $this->_os2ip($c);
+        $m = $this->_rsadp($c);
+        if ($m === false) {
+            user_error('Decryption error');
+            return false;
+        }
+        $em = $this->_i2osp($m, $this->k);
+
+        // EME-OAEP decoding
+
+        $lHash = $this->hash->hash($l);
+        $y = ord($em[0]);
+        $maskedSeed = substr($em, 1, $this->hLen);
+        $maskedDB = substr($em, $this->hLen + 1);
+        $seedMask = $this->_mgf1($maskedDB, $this->hLen);
+        $seed = $maskedSeed ^ $seedMask;
+        $dbMask = $this->_mgf1($seed, $this->k - $this->hLen - 1);
+        $db = $maskedDB ^ $dbMask;
+        $lHash2 = substr($db, 0, $this->hLen);
+        $m = substr($db, $this->hLen);
+        if (!$this->_equals($lHash, $lHash2)) {
+            user_error('Decryption error');
+            return false;
+        }
+        $m = ltrim($m, chr(0));
+        if (ord($m[0]) != 1) {
+            user_error('Decryption error');
+            return false;
+        }
+
+        // Output the message M
+
+        return substr($m, 1);
+    }
+
+    /**
+     * Raw Encryption / Decryption
+     *
+     * Doesn't use padding and is not recommended.
+     *
+     * @access private
+     * @param string $m
+     * @return string
+     */
+    function _raw_encrypt($m)
+    {
+        $temp = $this->_os2ip($m);
+        $temp = $this->_rsaep($temp);
+        return  $this->_i2osp($temp, $this->k);
+    }
+
+    /**
+     * RSAES-PKCS1-V1_5-ENCRYPT
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-7.2.1 RFC3447#section-7.2.1}.
+     *
+     * @access private
+     * @param string $m
+     * @return string
+     */
+    function _rsaes_pkcs1_v1_5_encrypt($m)
+    {
+        $mLen = strlen($m);
+
+        // Length checking
+
+        if ($mLen > $this->k - 11) {
+            user_error('Message too long');
+            return false;
+        }
+
+        // EME-PKCS1-v1_5 encoding
+
+        $psLen = $this->k - $mLen - 3;
+        $ps = '';
+        while (strlen($ps) != $psLen) {
+            $temp = Random::string($psLen - strlen($ps));
+            $temp = str_replace("\x00", '', $temp);
+            $ps.= $temp;
+        }
+        $type = 2;
+        // see the comments of _rsaes_pkcs1_v1_5_decrypt() to understand why this is being done
+        if (defined('CRYPT_RSA_PKCS15_COMPAT') && (!isset($this->publicExponent) || $this->exponent !== $this->publicExponent)) {
+            $type = 1;
+            // "The padding string PS shall consist of k-3-||D|| octets. ... for block type 01, they shall have value FF"
+            $ps = str_repeat("\xFF", $psLen);
+        }
+        $em = chr(0) . chr($type) . $ps . chr(0) . $m;
+
+        // RSA encryption
+        $m = $this->_os2ip($em);
+        $c = $this->_rsaep($m);
+        $c = $this->_i2osp($c, $this->k);
+
+        // Output the ciphertext C
+
+        return $c;
+    }
+
+    /**
+     * RSAES-PKCS1-V1_5-DECRYPT
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-7.2.2 RFC3447#section-7.2.2}.
+     *
+     * For compatibility purposes, this function departs slightly from the description given in RFC3447.
+     * The reason being that RFC2313#section-8.1 (PKCS#1 v1.5) states that ciphertext's encrypted by the
+     * private key should have the second byte set to either 0 or 1 and that ciphertext's encrypted by the
+     * public key should have the second byte set to 2.  In RFC3447 (PKCS#1 v2.1), the second byte is supposed
+     * to be 2 regardless of which key is used.  For compatibility purposes, we'll just check to make sure the
+     * second byte is 2 or less.  If it is, we'll accept the decrypted string as valid.
+     *
+     * As a consequence of this, a private key encrypted ciphertext produced with \phpseclib\Crypt\RSA may not decrypt
+     * with a strictly PKCS#1 v1.5 compliant RSA implementation.  Public key encrypted ciphertext's should but
+     * not private key encrypted ciphertext's.
+     *
+     * @access private
+     * @param string $c
+     * @return string
+     */
+    function _rsaes_pkcs1_v1_5_decrypt($c)
+    {
+        // Length checking
+
+        if (strlen($c) != $this->k) { // or if k < 11
+            user_error('Decryption error');
+            return false;
+        }
+
+        // RSA decryption
+
+        $c = $this->_os2ip($c);
+        $m = $this->_rsadp($c);
+
+        if ($m === false) {
+            user_error('Decryption error');
+            return false;
+        }
+        $em = $this->_i2osp($m, $this->k);
+
+        // EME-PKCS1-v1_5 decoding
+
+        if (ord($em[0]) != 0 || ord($em[1]) > 2) {
+            user_error('Decryption error');
+            return false;
+        }
+
+        $ps = substr($em, 2, strpos($em, chr(0), 2) - 2);
+        $m = substr($em, strlen($ps) + 3);
+
+        if (strlen($ps) < 8) {
+            user_error('Decryption error');
+            return false;
+        }
+
+        // Output M
+
+        return $m;
+    }
+
+    /**
+     * EMSA-PSS-ENCODE
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-9.1.1 RFC3447#section-9.1.1}.
+     *
+     * @access private
+     * @param string $m
+     * @param int $emBits
+     */
+    function _emsa_pss_encode($m, $emBits)
+    {
+        // if $m is larger than two million terrabytes and you're using sha1, PKCS#1 suggests a "Label too long" error
+        // be output.
+
+        $emLen = ($emBits + 1) >> 3; // ie. ceil($emBits / 8)
+        $sLen = $this->sLen !== null ? $this->sLen : $this->hLen;
+
+        $mHash = $this->hash->hash($m);
+        if ($emLen < $this->hLen + $sLen + 2) {
+            user_error('Encoding error');
+            return false;
+        }
+
+        $salt = Random::string($sLen);
+        $m2 = "\0\0\0\0\0\0\0\0" . $mHash . $salt;
+        $h = $this->hash->hash($m2);
+        $ps = str_repeat(chr(0), $emLen - $sLen - $this->hLen - 2);
+        $db = $ps . chr(1) . $salt;
+        $dbMask = $this->_mgf1($h, $emLen - $this->hLen - 1);
+        $maskedDB = $db ^ $dbMask;
+        $maskedDB[0] = ~chr(0xFF << ($emBits & 7)) & $maskedDB[0];
+        $em = $maskedDB . $h . chr(0xBC);
+
+        return $em;
+    }
+
+    /**
+     * EMSA-PSS-VERIFY
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-9.1.2 RFC3447#section-9.1.2}.
+     *
+     * @access private
+     * @param string $m
+     * @param string $em
+     * @param int $emBits
+     * @return string
+     */
+    function _emsa_pss_verify($m, $em, $emBits)
+    {
+        // if $m is larger than two million terrabytes and you're using sha1, PKCS#1 suggests a "Label too long" error
+        // be output.
+
+        $emLen = ($emBits + 1) >> 3; // ie. ceil($emBits / 8);
+        $sLen = $this->sLen !== null ? $this->sLen : $this->hLen;
+
+        $mHash = $this->hash->hash($m);
+        if ($emLen < $this->hLen + $sLen + 2) {
+            return false;
+        }
+
+        if ($em[strlen($em) - 1] != chr(0xBC)) {
+            return false;
+        }
+
+        $maskedDB = substr($em, 0, -$this->hLen - 1);
+        $h = substr($em, -$this->hLen - 1, $this->hLen);
+        $temp = chr(0xFF << ($emBits & 7));
+        if ((~$maskedDB[0] & $temp) != $temp) {
+            return false;
+        }
+        $dbMask = $this->_mgf1($h, $emLen - $this->hLen - 1);
+        $db = $maskedDB ^ $dbMask;
+        $db[0] = ~chr(0xFF << ($emBits & 7)) & $db[0];
+        $temp = $emLen - $this->hLen - $sLen - 2;
+        if (substr($db, 0, $temp) != str_repeat(chr(0), $temp) || ord($db[$temp]) != 1) {
+            return false;
+        }
+        $salt = substr($db, $temp + 1); // should be $sLen long
+        $m2 = "\0\0\0\0\0\0\0\0" . $mHash . $salt;
+        $h2 = $this->hash->hash($m2);
+        return $this->_equals($h, $h2);
+    }
+
+    /**
+     * RSASSA-PSS-SIGN
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-8.1.1 RFC3447#section-8.1.1}.
+     *
+     * @access private
+     * @param string $m
+     * @return string
+     */
+    function _rsassa_pss_sign($m)
+    {
+        // EMSA-PSS encoding
+
+        $em = $this->_emsa_pss_encode($m, 8 * $this->k - 1);
+
+        // RSA signature
+
+        $m = $this->_os2ip($em);
+        $s = $this->_rsasp1($m);
+        $s = $this->_i2osp($s, $this->k);
+
+        // Output the signature S
+
+        return $s;
+    }
+
+    /**
+     * RSASSA-PSS-VERIFY
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-8.1.2 RFC3447#section-8.1.2}.
+     *
+     * @access private
+     * @param string $m
+     * @param string $s
+     * @return string
+     */
+    function _rsassa_pss_verify($m, $s)
+    {
+        // Length checking
+
+        if (strlen($s) != $this->k) {
+            user_error('Invalid signature');
+            return false;
+        }
+
+        // RSA verification
+
+        $modBits = 8 * $this->k;
+
+        $s2 = $this->_os2ip($s);
+        $m2 = $this->_rsavp1($s2);
+        if ($m2 === false) {
+            user_error('Invalid signature');
+            return false;
+        }
+        $em = $this->_i2osp($m2, $modBits >> 3);
+        if ($em === false) {
+            user_error('Invalid signature');
+            return false;
+        }
+
+        // EMSA-PSS verification
+
+        return $this->_emsa_pss_verify($m, $em, $modBits - 1);
+    }
+
+    /**
+     * EMSA-PKCS1-V1_5-ENCODE
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-9.2 RFC3447#section-9.2}.
+     *
+     * @access private
+     * @param string $m
+     * @param int $emLen
+     * @return string
+     */
+    function _emsa_pkcs1_v1_5_encode($m, $emLen)
+    {
+        $h = $this->hash->hash($m);
+        if ($h === false) {
+            return false;
+        }
+
+        // see http://tools.ietf.org/html/rfc3447#page-43
+        switch ($this->hashName) {
+            case 'md2':
+                $t = pack('H*', '3020300c06082a864886f70d020205000410');
+                break;
+            case 'md5':
+                $t = pack('H*', '3020300c06082a864886f70d020505000410');
+                break;
+            case 'sha1':
+                $t = pack('H*', '3021300906052b0e03021a05000414');
+                break;
+            case 'sha256':
+                $t = pack('H*', '3031300d060960864801650304020105000420');
+                break;
+            case 'sha384':
+                $t = pack('H*', '3041300d060960864801650304020205000430');
+                break;
+            case 'sha512':
+                $t = pack('H*', '3051300d060960864801650304020305000440');
+        }
+        $t.= $h;
+        $tLen = strlen($t);
+
+        if ($emLen < $tLen + 11) {
+            user_error('Intended encoded message length too short');
+            return false;
+        }
+
+        $ps = str_repeat(chr(0xFF), $emLen - $tLen - 3);
+
+        $em = "\0\1$ps\0$t";
+
+        return $em;
+    }
+
+    /**
+     * RSASSA-PKCS1-V1_5-SIGN
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-8.2.1 RFC3447#section-8.2.1}.
+     *
+     * @access private
+     * @param string $m
+     * @return string
+     */
+    function _rsassa_pkcs1_v1_5_sign($m)
+    {
+        // EMSA-PKCS1-v1_5 encoding
+
+        $em = $this->_emsa_pkcs1_v1_5_encode($m, $this->k);
+        if ($em === false) {
+            user_error('RSA modulus too short');
+            return false;
+        }
+
+        // RSA signature
+
+        $m = $this->_os2ip($em);
+        $s = $this->_rsasp1($m);
+        $s = $this->_i2osp($s, $this->k);
+
+        // Output the signature S
+
+        return $s;
+    }
+
+    /**
+     * RSASSA-PKCS1-V1_5-VERIFY
+     *
+     * See {@link http://tools.ietf.org/html/rfc3447#section-8.2.2 RFC3447#section-8.2.2}.
+     *
+     * @access private
+     * @param string $m
+     * @return string
+     */
+    function _rsassa_pkcs1_v1_5_verify($m, $s)
+    {
+        // Length checking
+
+        if (strlen($s) != $this->k) {
+            user_error('Invalid signature');
+            return false;
+        }
+
+        // RSA verification
+
+        $s = $this->_os2ip($s);
+        $m2 = $this->_rsavp1($s);
+        if ($m2 === false) {
+            user_error('Invalid signature');
+            return false;
+        }
+        $em = $this->_i2osp($m2, $this->k);
+        if ($em === false) {
+            user_error('Invalid signature');
+            return false;
+        }
+
+        // EMSA-PKCS1-v1_5 encoding
+
+        $em2 = $this->_emsa_pkcs1_v1_5_encode($m, $this->k);
+        if ($em2 === false) {
+            user_error('RSA modulus too short');
+            return false;
+        }
+
+        // Compare
+        return $this->_equals($em, $em2);
+    }
+
+    /**
+     * Set Encryption Mode
+     *
+     * Valid values include self::ENCRYPTION_OAEP and self::ENCRYPTION_PKCS1.
+     *
+     * @access public
+     * @param int $mode
+     */
+    function setEncryptionMode($mode)
+    {
+        $this->encryptionMode = $mode;
+    }
+
+    /**
+     * Set Signature Mode
+     *
+     * Valid values include self::SIGNATURE_PSS and self::SIGNATURE_PKCS1
+     *
+     * @access public
+     * @param int $mode
+     */
+    function setSignatureMode($mode)
+    {
+        $this->signatureMode = $mode;
+    }
+
+    /**
+     * Set public key comment.
+     *
+     * @access public
+     * @param string $comment
+     */
+    function setComment($comment)
+    {
+        $this->comment = $comment;
+    }
+
+    /**
+     * Get public key comment.
+     *
+     * @access public
+     * @return string
+     */
+    function getComment()
+    {
+        return $this->comment;
+    }
+
+    /**
+     * Encryption
+     *
+     * Both self::ENCRYPTION_OAEP and self::ENCRYPTION_PKCS1 both place limits on how long $plaintext can be.
+     * If $plaintext exceeds those limits it will be broken up so that it does and the resultant ciphertext's will
+     * be concatenated together.
+     *
+     * @see self::decrypt()
+     * @access public
+     * @param string $plaintext
+     * @return string
+     */
+    function encrypt($plaintext)
+    {
+        switch ($this->encryptionMode) {
+            case self::ENCRYPTION_NONE:
+                $plaintext = str_split($plaintext, $this->k);
+                $ciphertext = '';
+                foreach ($plaintext as $m) {
+                    $ciphertext.= $this->_raw_encrypt($m);
+                }
+                return $ciphertext;
+            case self::ENCRYPTION_PKCS1:
+                $length = $this->k - 11;
+                if ($length <= 0) {
+                    return false;
+                }
+
+                $plaintext = str_split($plaintext, $length);
+                $ciphertext = '';
+                foreach ($plaintext as $m) {
+                    $ciphertext.= $this->_rsaes_pkcs1_v1_5_encrypt($m);
+                }
+                return $ciphertext;
+            //case self::ENCRYPTION_OAEP:
+            default:
+                $length = $this->k - 2 * $this->hLen - 2;
+                if ($length <= 0) {
+                    return false;
+                }
+
+                $plaintext = str_split($plaintext, $length);
+                $ciphertext = '';
+                foreach ($plaintext as $m) {
+                    $ciphertext.= $this->_rsaes_oaep_encrypt($m);
+                }
+                return $ciphertext;
+        }
+    }
+
+    /**
+     * Decryption
+     *
+     * @see self::encrypt()
+     * @access public
+     * @param string $plaintext
+     * @return string
+     */
+    function decrypt($ciphertext)
+    {
+        if ($this->k <= 0) {
+            return false;
+        }
+
+        $ciphertext = str_split($ciphertext, $this->k);
+        $ciphertext[count($ciphertext) - 1] = str_pad($ciphertext[count($ciphertext) - 1], $this->k, chr(0), STR_PAD_LEFT);
+
+        $plaintext = '';
+
+        switch ($this->encryptionMode) {
+            case self::ENCRYPTION_NONE:
+                $decrypt = '_raw_encrypt';
+                break;
+            case self::ENCRYPTION_PKCS1:
+                $decrypt = '_rsaes_pkcs1_v1_5_decrypt';
+                break;
+            //case self::ENCRYPTION_OAEP:
+            default:
+                $decrypt = '_rsaes_oaep_decrypt';
+        }
+
+        foreach ($ciphertext as $c) {
+            $temp = $this->$decrypt($c);
+            if ($temp === false) {
+                return false;
+            }
+            $plaintext.= $temp;
+        }
+
+        return $plaintext;
+    }
+
+    /**
+     * Create a signature
+     *
+     * @see self::verify()
+     * @access public
+     * @param string $message
+     * @return string
+     */
+    function sign($message)
+    {
+        if (empty($this->modulus) || empty($this->exponent)) {
+            return false;
+        }
+
+        switch ($this->signatureMode) {
+            case self::SIGNATURE_PKCS1:
+                return $this->_rsassa_pkcs1_v1_5_sign($message);
+            //case self::SIGNATURE_PSS:
+            default:
+                return $this->_rsassa_pss_sign($message);
+        }
+    }
+
+    /**
+     * Verifies a signature
+     *
+     * @see self::sign()
+     * @access public
+     * @param string $message
+     * @param string $signature
+     * @return bool
+     */
+    function verify($message, $signature)
+    {
+        if (empty($this->modulus) || empty($this->exponent)) {
+            return false;
+        }
+
+        switch ($this->signatureMode) {
+            case self::SIGNATURE_PKCS1:
+                return $this->_rsassa_pkcs1_v1_5_verify($message, $signature);
+            //case self::SIGNATURE_PSS:
+            default:
+                return $this->_rsassa_pss_verify($message, $signature);
+        }
+    }
+
+    /**
+     * Extract raw BER from Base64 encoding
+     *
+     * @access private
+     * @param string $str
+     * @return string
+     */
+    function _extractBER($str)
+    {
+        /* X.509 certs are assumed to be base64 encoded but sometimes they'll have additional things in them
+         * above and beyond the ceritificate.
+         * ie. some may have the following preceding the -----BEGIN CERTIFICATE----- line:
+         *
+         * Bag Attributes
+         *     localKeyID: 01 00 00 00
+         * subject=/O=organization/OU=org unit/CN=common name
+         * issuer=/O=organization/CN=common name
+         */
+        $temp = preg_replace('#.*?^-+[^-]+-+[\r\n ]*$#ms', '', $str, 1);
+        // remove the -----BEGIN CERTIFICATE----- and -----END CERTIFICATE----- stuff
+        $temp = preg_replace('#-+[^-]+-+#', '', $temp);
+        // remove new lines
+        $temp = str_replace(array("\r", "\n", ' '), '', $temp);
+        $temp = preg_match('#^[a-zA-Z\d/+]*={0,2}$#', $temp) ? base64_decode($temp) : false;
+        return $temp != false ? $temp : $str;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Random.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Random.php
new file mode 100644
index 0000000..01e34cc
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Random.php
@@ -0,0 +1,274 @@
+<?php
+
+/**
+ * Random Number Generator
+ *
+ * PHP version 5
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    echo bin2hex(\phpseclib\Crypt\Random::string(8));
+ * ?>
+ * </code>
+ *
+ * @category  Crypt
+ * @package   Random
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2007 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Pure-PHP Random Number Generator
+ *
+ * @package Random
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @access  public
+ */
+class Random
+{
+    /**
+     * Generate a random string.
+     *
+     * Although microoptimizations are generally discouraged as they impair readability this function is ripe with
+     * microoptimizations because this function has the potential of being called a huge number of times.
+     * eg. for RSA key generation.
+     *
+     * @param int $length
+     * @return string
+     */
+    static function string($length)
+    {
+        if (!$length) {
+            return '';
+        }
+
+        if (version_compare(PHP_VERSION, '7.0.0', '>=')) {
+            try {
+                return \random_bytes($length);
+            } catch (\Throwable $e) {
+                // If a sufficient source of randomness is unavailable, random_bytes() will throw an
+                // object that implements the Throwable interface (Exception, TypeError, Error).
+                // We don't actually need to do anything here. The string() method should just continue
+                // as normal. Note, however, that if we don't have a sufficient source of randomness for
+                // random_bytes(), most of the other calls here will fail too, so we'll end up using
+                // the PHP implementation.
+            }
+        }
+
+        if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
+            // method 1. prior to PHP 5.3 this would call rand() on windows hence the function_exists('class_alias') call.
+            // ie. class_alias is a function that was introduced in PHP 5.3
+            if (extension_loaded('mcrypt') && function_exists('class_alias')) {
+                return @mcrypt_create_iv($length);
+            }
+            // method 2. openssl_random_pseudo_bytes was introduced in PHP 5.3.0 but prior to PHP 5.3.4 there was,
+            // to quote <http://php.net/ChangeLog-5.php#5.3.4>, "possible blocking behavior". as of 5.3.4
+            // openssl_random_pseudo_bytes and mcrypt_create_iv do the exact same thing on Windows. ie. they both
+            // call php_win32_get_random_bytes():
+            //
+            // https://github.com/php/php-src/blob/7014a0eb6d1611151a286c0ff4f2238f92c120d6/ext/openssl/openssl.c#L5008
+            // https://github.com/php/php-src/blob/7014a0eb6d1611151a286c0ff4f2238f92c120d6/ext/mcrypt/mcrypt.c#L1392
+            //
+            // php_win32_get_random_bytes() is defined thusly:
+            //
+            // https://github.com/php/php-src/blob/7014a0eb6d1611151a286c0ff4f2238f92c120d6/win32/winutil.c#L80
+            //
+            // we're calling it, all the same, in the off chance that the mcrypt extension is not available
+            if (extension_loaded('openssl') && version_compare(PHP_VERSION, '5.3.4', '>=')) {
+                return openssl_random_pseudo_bytes($length);
+            }
+        } else {
+            // method 1. the fastest
+            if (extension_loaded('openssl')) {
+                return openssl_random_pseudo_bytes($length);
+            }
+            // method 2
+            static $fp = true;
+            if ($fp === true) {
+                // warning's will be output unles the error suppression operator is used. errors such as
+                // "open_basedir restriction in effect", "Permission denied", "No such file or directory", etc.
+                $fp = @fopen('/dev/urandom', 'rb');
+            }
+            if ($fp !== true && $fp !== false) { // surprisingly faster than !is_bool() or is_resource()
+                return fread($fp, $length);
+            }
+            // method 3. pretty much does the same thing as method 2 per the following url:
+            // https://github.com/php/php-src/blob/7014a0eb6d1611151a286c0ff4f2238f92c120d6/ext/mcrypt/mcrypt.c#L1391
+            // surprisingly slower than method 2. maybe that's because mcrypt_create_iv does a bunch of error checking that we're
+            // not doing. regardless, this'll only be called if this PHP script couldn't open /dev/urandom due to open_basedir
+            // restrictions or some such
+            if (extension_loaded('mcrypt')) {
+                return @mcrypt_create_iv($length, MCRYPT_DEV_URANDOM);
+            }
+        }
+        // at this point we have no choice but to use a pure-PHP CSPRNG
+
+        // cascade entropy across multiple PHP instances by fixing the session and collecting all
+        // environmental variables, including the previous session data and the current session
+        // data.
+        //
+        // mt_rand seeds itself by looking at the PID and the time, both of which are (relatively)
+        // easy to guess at. linux uses mouse clicks, keyboard timings, etc, as entropy sources, but
+        // PHP isn't low level to be able to use those as sources and on a web server there's not likely
+        // going to be a ton of keyboard or mouse action. web servers do have one thing that we can use
+        // however, a ton of people visiting the website. obviously you don't want to base your seeding
+        // soley on parameters a potential attacker sends but (1) not everything in $_SERVER is controlled
+        // by the user and (2) this isn't just looking at the data sent by the current user - it's based
+        // on the data sent by all users. one user requests the page and a hash of their info is saved.
+        // another user visits the page and the serialization of their data is utilized along with the
+        // server envirnment stuff and a hash of the previous http request data (which itself utilizes
+        // a hash of the session data before that). certainly an attacker should be assumed to have
+        // full control over his own http requests. he, however, is not going to have control over
+        // everyone's http requests.
+        static $crypto = false, $v;
+        if ($crypto === false) {
+            // save old session data
+            $old_session_id = session_id();
+            $old_use_cookies = ini_get('session.use_cookies');
+            $old_session_cache_limiter = session_cache_limiter();
+            $_OLD_SESSION = isset($_SESSION) ? $_SESSION : false;
+            if ($old_session_id != '') {
+                session_write_close();
+            }
+
+            session_id(1);
+            ini_set('session.use_cookies', 0);
+            session_cache_limiter('');
+            session_start();
+
+            $v = $seed = $_SESSION['seed'] = pack('H*', sha1(
+                (isset($_SERVER) ? phpseclib_safe_serialize($_SERVER) : '') .
+                (isset($_POST) ? phpseclib_safe_serialize($_POST) : '') .
+                (isset($_GET) ? phpseclib_safe_serialize($_GET) : '') .
+                (isset($_COOKIE) ? phpseclib_safe_serialize($_COOKIE) : '') .
+                phpseclib_safe_serialize($GLOBALS) .
+                phpseclib_safe_serialize($_SESSION) .
+                phpseclib_safe_serialize($_OLD_SESSION)
+            ));
+            if (!isset($_SESSION['count'])) {
+                $_SESSION['count'] = 0;
+            }
+            $_SESSION['count']++;
+
+            session_write_close();
+
+            // restore old session data
+            if ($old_session_id != '') {
+                session_id($old_session_id);
+                session_start();
+                ini_set('session.use_cookies', $old_use_cookies);
+                session_cache_limiter($old_session_cache_limiter);
+            } else {
+                if ($_OLD_SESSION !== false) {
+                    $_SESSION = $_OLD_SESSION;
+                    unset($_OLD_SESSION);
+                } else {
+                    unset($_SESSION);
+                }
+            }
+
+            // in SSH2 a shared secret and an exchange hash are generated through the key exchange process.
+            // the IV client to server is the hash of that "nonce" with the letter A and for the encryption key it's the letter C.
+            // if the hash doesn't produce enough a key or an IV that's long enough concat successive hashes of the
+            // original hash and the current hash. we'll be emulating that. for more info see the following URL:
+            //
+            // http://tools.ietf.org/html/rfc4253#section-7.2
+            //
+            // see the is_string($crypto) part for an example of how to expand the keys
+            $key = pack('H*', sha1($seed . 'A'));
+            $iv = pack('H*', sha1($seed . 'C'));
+
+            // ciphers are used as per the nist.gov link below. also, see this link:
+            //
+            // http://en.wikipedia.org/wiki/Cryptographically_secure_pseudorandom_number_generator#Designs_based_on_cryptographic_primitives
+            switch (true) {
+                case class_exists('\phpseclib\Crypt\AES'):
+                    $crypto = new AES(Base::MODE_CTR);
+                    break;
+                case class_exists('\phpseclib\Crypt\Twofish'):
+                    $crypto = new Twofish(Base::MODE_CTR);
+                    break;
+                case class_exists('\phpseclib\Crypt\Blowfish'):
+                    $crypto = new Blowfish(Base::MODE_CTR);
+                    break;
+                case class_exists('\phpseclib\Crypt\TripleDES'):
+                    $crypto = new TripleDES(Base::MODE_CTR);
+                    break;
+                case class_exists('\phpseclib\Crypt\DES'):
+                    $crypto = new DES(Base::MODE_CTR);
+                    break;
+                case class_exists('\phpseclib\Crypt\RC4'):
+                    $crypto = new RC4();
+                    break;
+                default:
+                    user_error(__CLASS__ . ' requires at least one symmetric cipher be loaded');
+                    return false;
+            }
+
+            $crypto->setKey($key);
+            $crypto->setIV($iv);
+            $crypto->enableContinuousBuffer();
+        }
+
+        //return $crypto->encrypt(str_repeat("\0", $length));
+
+        // the following is based off of ANSI X9.31:
+        //
+        // http://csrc.nist.gov/groups/STM/cavp/documents/rng/931rngext.pdf
+        //
+        // OpenSSL uses that same standard for it's random numbers:
+        //
+        // http://www.opensource.apple.com/source/OpenSSL/OpenSSL-38/openssl/fips-1.0/rand/fips_rand.c
+        // (do a search for "ANS X9.31 A.2.4")
+        $result = '';
+        while (strlen($result) < $length) {
+            $i = $crypto->encrypt(microtime()); // strlen(microtime()) == 21
+            $r = $crypto->encrypt($i ^ $v); // strlen($v) == 20
+            $v = $crypto->encrypt($r ^ $i); // strlen($r) == 20
+            $result.= $r;
+        }
+        return substr($result, 0, $length);
+    }
+}
+
+if (!function_exists('phpseclib_safe_serialize')) {
+    /**
+     * Safely serialize variables
+     *
+     * If a class has a private __sleep() method it'll give a fatal error on PHP 5.2 and earlier.
+     * PHP 5.3 will emit a warning.
+     *
+     * @param mixed $arr
+     * @access public
+     */
+    function phpseclib_safe_serialize(&$arr)
+    {
+        if (is_object($arr)) {
+            return '';
+        }
+        if (!is_array($arr)) {
+            return serialize($arr);
+        }
+        // prevent circular array recursion
+        if (isset($arr['__phpseclib_marker'])) {
+            return '';
+        }
+        $safearr = array();
+        $arr['__phpseclib_marker'] = true;
+        foreach (array_keys($arr) as $key) {
+            // do not recurse on the '__phpseclib_marker' key itself, for smaller memory usage
+            if ($key !== '__phpseclib_marker') {
+                $safearr[$key] = phpseclib_safe_serialize($arr[$key]);
+            }
+        }
+        unset($arr['__phpseclib_marker']);
+        return serialize($safearr);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Rijndael.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Rijndael.php
new file mode 100644
index 0000000..3648a19
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Rijndael.php
@@ -0,0 +1,936 @@
+<?php
+
+/**
+ * Pure-PHP implementation of Rijndael.
+ *
+ * Uses mcrypt, if available/possible, and an internal implementation, otherwise.
+ *
+ * PHP version 5
+ *
+ * If {@link self::setBlockLength() setBlockLength()} isn't called, it'll be assumed to be 128 bits.  If
+ * {@link self::setKeyLength() setKeyLength()} isn't called, it'll be calculated from
+ * {@link self::setKey() setKey()}.  ie. if the key is 128-bits, the key length will be 128-bits.  If it's
+ * 136-bits it'll be null-padded to 192-bits and 192 bits will be the key length until
+ * {@link self::setKey() setKey()} is called, again, at which point, it'll be recalculated.
+ *
+ * Not all Rijndael implementations may support 160-bits or 224-bits as the block length / key length.  mcrypt, for example,
+ * does not.  AES, itself, only supports block lengths of 128 and key lengths of 128, 192, and 256.
+ * {@link http://csrc.nist.gov/archive/aes/rijndael/Rijndael-ammended.pdf#page=10 Rijndael-ammended.pdf#page=10} defines the
+ * algorithm for block lengths of 192 and 256 but not for block lengths / key lengths of 160 and 224.  Indeed, 160 and 224
+ * are first defined as valid key / block lengths in
+ * {@link http://csrc.nist.gov/archive/aes/rijndael/Rijndael-ammended.pdf#page=44 Rijndael-ammended.pdf#page=44}:
+ * Extensions: Other block and Cipher Key lengths.
+ * Note: Use of 160/224-bit Keys must be explicitly set by setKeyLength(160) respectively setKeyLength(224).
+ *
+ * {@internal The variable names are the same as those in
+ * {@link http://www.csrc.nist.gov/publications/fips/fips197/fips-197.pdf#page=10 fips-197.pdf#page=10}.}}
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $rijndael = new \phpseclib\Crypt\Rijndael();
+ *
+ *    $rijndael->setKey('abcdefghijklmnop');
+ *
+ *    $size = 10 * 1024;
+ *    $plaintext = '';
+ *    for ($i = 0; $i < $size; $i++) {
+ *        $plaintext.= 'a';
+ *    }
+ *
+ *    echo $rijndael->decrypt($rijndael->encrypt($plaintext));
+ * ?>
+ * </code>
+ *
+ * @category  Crypt
+ * @package   Rijndael
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2008 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Pure-PHP implementation of Rijndael.
+ *
+ * @package Rijndael
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @access  public
+ */
+class Rijndael extends Base
+{
+    /**
+     * The mcrypt specific name of the cipher
+     *
+     * Mcrypt is useable for 128/192/256-bit $block_size/$key_length. For 160/224 not.
+     * \phpseclib\Crypt\Rijndael determines automatically whether mcrypt is useable
+     * or not for the current $block_size/$key_length.
+     * In case of, $cipher_name_mcrypt will be set dynamically at run time accordingly.
+     *
+     * @see \phpseclib\Crypt\Base::cipher_name_mcrypt
+     * @see \phpseclib\Crypt\Base::engine
+     * @see self::isValidEngine()
+     * @var string
+     * @access private
+     */
+    var $cipher_name_mcrypt = 'rijndael-128';
+
+    /**
+     * The default salt used by setPassword()
+     *
+     * @see \phpseclib\Crypt\Base::password_default_salt
+     * @see \phpseclib\Crypt\Base::setPassword()
+     * @var string
+     * @access private
+     */
+    var $password_default_salt = 'phpseclib';
+
+    /**
+     * The Key Schedule
+     *
+     * @see self::_setup()
+     * @var array
+     * @access private
+     */
+    var $w;
+
+    /**
+     * The Inverse Key Schedule
+     *
+     * @see self::_setup()
+     * @var array
+     * @access private
+     */
+    var $dw;
+
+    /**
+     * The Block Length divided by 32
+     *
+     * @see self::setBlockLength()
+     * @var int
+     * @access private
+     * @internal The max value is 256 / 32 = 8, the min value is 128 / 32 = 4.  Exists in conjunction with $block_size
+     *    because the encryption / decryption / key schedule creation requires this number and not $block_size.  We could
+     *    derive this from $block_size or vice versa, but that'd mean we'd have to do multiple shift operations, so in lieu
+     *    of that, we'll just precompute it once.
+     */
+    var $Nb = 4;
+
+    /**
+     * The Key Length (in bytes)
+     *
+     * @see self::setKeyLength()
+     * @var int
+     * @access private
+     * @internal The max value is 256 / 8 = 32, the min value is 128 / 8 = 16.  Exists in conjunction with $Nk
+     *    because the encryption / decryption / key schedule creation requires this number and not $key_length.  We could
+     *    derive this from $key_length or vice versa, but that'd mean we'd have to do multiple shift operations, so in lieu
+     *    of that, we'll just precompute it once.
+     */
+    var $key_length = 16;
+
+    /**
+     * The Key Length divided by 32
+     *
+     * @see self::setKeyLength()
+     * @var int
+     * @access private
+     * @internal The max value is 256 / 32 = 8, the min value is 128 / 32 = 4
+     */
+    var $Nk = 4;
+
+    /**
+     * The Number of Rounds
+     *
+     * @var int
+     * @access private
+     * @internal The max value is 14, the min value is 10.
+     */
+    var $Nr;
+
+    /**
+     * Shift offsets
+     *
+     * @var array
+     * @access private
+     */
+    var $c;
+
+    /**
+     * Holds the last used key- and block_size information
+     *
+     * @var array
+     * @access private
+     */
+    var $kl;
+
+    /**
+     * Sets the key length.
+     *
+     * Valid key lengths are 128, 160, 192, 224, and 256.  If the length is less than 128, it will be rounded up to
+     * 128.  If the length is greater than 128 and invalid, it will be rounded down to the closest valid amount.
+     *
+     * Note: phpseclib extends Rijndael (and AES) for using 160- and 224-bit keys but they are officially not defined
+     *       and the most (if not all) implementations are not able using 160/224-bit keys but round/pad them up to
+     *       192/256 bits as, for example, mcrypt will do.
+     *
+     *       That said, if you want be compatible with other Rijndael and AES implementations,
+     *       you should not setKeyLength(160) or setKeyLength(224).
+     *
+     * Additional: In case of 160- and 224-bit keys, phpseclib will/can, for that reason, not use
+     *             the mcrypt php extension, even if available.
+     *             This results then in slower encryption.
+     *
+     * @access public
+     * @param int $length
+     */
+    function setKeyLength($length)
+    {
+        switch (true) {
+            case $length <= 128:
+                $this->key_length = 16;
+                break;
+            case $length <= 160:
+                $this->key_length = 20;
+                break;
+            case $length <= 192:
+                $this->key_length = 24;
+                break;
+            case $length <= 224:
+                $this->key_length = 28;
+                break;
+            default:
+                $this->key_length = 32;
+        }
+
+        parent::setKeyLength($length);
+    }
+
+    /**
+     * Sets the block length
+     *
+     * Valid block lengths are 128, 160, 192, 224, and 256.  If the length is less than 128, it will be rounded up to
+     * 128.  If the length is greater than 128 and invalid, it will be rounded down to the closest valid amount.
+     *
+     * @access public
+     * @param int $length
+     */
+    function setBlockLength($length)
+    {
+        $length >>= 5;
+        if ($length > 8) {
+            $length = 8;
+        } elseif ($length < 4) {
+            $length = 4;
+        }
+        $this->Nb = $length;
+        $this->block_size = $length << 2;
+        $this->changed = true;
+        $this->_setEngine();
+    }
+
+    /**
+     * Test for engine validity
+     *
+     * This is mainly just a wrapper to set things up for \phpseclib\Crypt\Base::isValidEngine()
+     *
+     * @see \phpseclib\Crypt\Base::__construct()
+     * @param int $engine
+     * @access public
+     * @return bool
+     */
+    function isValidEngine($engine)
+    {
+        switch ($engine) {
+            case self::ENGINE_OPENSSL:
+                if ($this->block_size != 16) {
+                    return false;
+                }
+                $this->cipher_name_openssl_ecb = 'aes-' . ($this->key_length << 3) . '-ecb';
+                $this->cipher_name_openssl = 'aes-' . ($this->key_length << 3) . '-' . $this->_openssl_translate_mode();
+                break;
+            case self::ENGINE_MCRYPT:
+                $this->cipher_name_mcrypt = 'rijndael-' . ($this->block_size << 3);
+                if ($this->key_length % 8) { // is it a 160/224-bit key?
+                    // mcrypt is not usable for them, only for 128/192/256-bit keys
+                    return false;
+                }
+        }
+
+        return parent::isValidEngine($engine);
+    }
+
+    /**
+     * Encrypts a block
+     *
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    function _encryptBlock($in)
+    {
+        static $tables;
+        if (empty($tables)) {
+            $tables = &$this->_getTables();
+        }
+        $t0   = $tables[0];
+        $t1   = $tables[1];
+        $t2   = $tables[2];
+        $t3   = $tables[3];
+        $sbox = $tables[4];
+
+        $state = array();
+        $words = unpack('N*', $in);
+
+        $c = $this->c;
+        $w = $this->w;
+        $Nb = $this->Nb;
+        $Nr = $this->Nr;
+
+        // addRoundKey
+        $wc = $Nb - 1;
+        foreach ($words as $word) {
+            $state[] = $word ^ $w[++$wc];
+        }
+
+        // fips-197.pdf#page=19, "Figure 5. Pseudo Code for the Cipher", states that this loop has four components -
+        // subBytes, shiftRows, mixColumns, and addRoundKey. fips-197.pdf#page=30, "Implementation Suggestions Regarding
+        // Various Platforms" suggests that performs enhanced implementations are described in Rijndael-ammended.pdf.
+        // Rijndael-ammended.pdf#page=20, "Implementation aspects / 32-bit processor", discusses such an optimization.
+        // Unfortunately, the description given there is not quite correct.  Per aes.spec.v316.pdf#page=19 [1],
+        // equation (7.4.7) is supposed to use addition instead of subtraction, so we'll do that here, as well.
+
+        // [1] http://fp.gladman.plus.com/cryptography_technology/rijndael/aes.spec.v316.pdf
+        $temp = array();
+        for ($round = 1; $round < $Nr; ++$round) {
+            $i = 0; // $c[0] == 0
+            $j = $c[1];
+            $k = $c[2];
+            $l = $c[3];
+
+            while ($i < $Nb) {
+                $temp[$i] = $t0[$state[$i] >> 24 & 0x000000FF] ^
+                            $t1[$state[$j] >> 16 & 0x000000FF] ^
+                            $t2[$state[$k] >>  8 & 0x000000FF] ^
+                            $t3[$state[$l]       & 0x000000FF] ^
+                            $w[++$wc];
+                ++$i;
+                $j = ($j + 1) % $Nb;
+                $k = ($k + 1) % $Nb;
+                $l = ($l + 1) % $Nb;
+            }
+            $state = $temp;
+        }
+
+        // subWord
+        for ($i = 0; $i < $Nb; ++$i) {
+            $state[$i] =   $sbox[$state[$i]       & 0x000000FF]        |
+                          ($sbox[$state[$i] >>  8 & 0x000000FF] <<  8) |
+                          ($sbox[$state[$i] >> 16 & 0x000000FF] << 16) |
+                          ($sbox[$state[$i] >> 24 & 0x000000FF] << 24);
+        }
+
+        // shiftRows + addRoundKey
+        $i = 0; // $c[0] == 0
+        $j = $c[1];
+        $k = $c[2];
+        $l = $c[3];
+        while ($i < $Nb) {
+            $temp[$i] = ($state[$i] & 0xFF000000) ^
+                        ($state[$j] & 0x00FF0000) ^
+                        ($state[$k] & 0x0000FF00) ^
+                        ($state[$l] & 0x000000FF) ^
+                         $w[$i];
+            ++$i;
+            $j = ($j + 1) % $Nb;
+            $k = ($k + 1) % $Nb;
+            $l = ($l + 1) % $Nb;
+        }
+
+        switch ($Nb) {
+            case 8:
+                return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5], $temp[6], $temp[7]);
+            case 7:
+                return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5], $temp[6]);
+            case 6:
+                return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5]);
+            case 5:
+                return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4]);
+            default:
+                return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3]);
+        }
+    }
+
+    /**
+     * Decrypts a block
+     *
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    function _decryptBlock($in)
+    {
+        static $invtables;
+        if (empty($invtables)) {
+            $invtables = &$this->_getInvTables();
+        }
+        $dt0   = $invtables[0];
+        $dt1   = $invtables[1];
+        $dt2   = $invtables[2];
+        $dt3   = $invtables[3];
+        $isbox = $invtables[4];
+
+        $state = array();
+        $words = unpack('N*', $in);
+
+        $c  = $this->c;
+        $dw = $this->dw;
+        $Nb = $this->Nb;
+        $Nr = $this->Nr;
+
+        // addRoundKey
+        $wc = $Nb - 1;
+        foreach ($words as $word) {
+            $state[] = $word ^ $dw[++$wc];
+        }
+
+        $temp = array();
+        for ($round = $Nr - 1; $round > 0; --$round) {
+            $i = 0; // $c[0] == 0
+            $j = $Nb - $c[1];
+            $k = $Nb - $c[2];
+            $l = $Nb - $c[3];
+
+            while ($i < $Nb) {
+                $temp[$i] = $dt0[$state[$i] >> 24 & 0x000000FF] ^
+                            $dt1[$state[$j] >> 16 & 0x000000FF] ^
+                            $dt2[$state[$k] >>  8 & 0x000000FF] ^
+                            $dt3[$state[$l]       & 0x000000FF] ^
+                            $dw[++$wc];
+                ++$i;
+                $j = ($j + 1) % $Nb;
+                $k = ($k + 1) % $Nb;
+                $l = ($l + 1) % $Nb;
+            }
+            $state = $temp;
+        }
+
+        // invShiftRows + invSubWord + addRoundKey
+        $i = 0; // $c[0] == 0
+        $j = $Nb - $c[1];
+        $k = $Nb - $c[2];
+        $l = $Nb - $c[3];
+
+        while ($i < $Nb) {
+            $word = ($state[$i] & 0xFF000000) |
+                    ($state[$j] & 0x00FF0000) |
+                    ($state[$k] & 0x0000FF00) |
+                    ($state[$l] & 0x000000FF);
+
+            $temp[$i] = $dw[$i] ^ ($isbox[$word       & 0x000000FF]        |
+                                  ($isbox[$word >>  8 & 0x000000FF] <<  8) |
+                                  ($isbox[$word >> 16 & 0x000000FF] << 16) |
+                                  ($isbox[$word >> 24 & 0x000000FF] << 24));
+            ++$i;
+            $j = ($j + 1) % $Nb;
+            $k = ($k + 1) % $Nb;
+            $l = ($l + 1) % $Nb;
+        }
+
+        switch ($Nb) {
+            case 8:
+                return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5], $temp[6], $temp[7]);
+            case 7:
+                return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5], $temp[6]);
+            case 6:
+                return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4], $temp[5]);
+            case 5:
+                return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3], $temp[4]);
+            default:
+                return pack('N*', $temp[0], $temp[1], $temp[2], $temp[3]);
+        }
+    }
+
+    /**
+     * Setup the key (expansion)
+     *
+     * @see \phpseclib\Crypt\Base::_setupKey()
+     * @access private
+     */
+    function _setupKey()
+    {
+        // Each number in $rcon is equal to the previous number multiplied by two in Rijndael's finite field.
+        // See http://en.wikipedia.org/wiki/Finite_field_arithmetic#Multiplicative_inverse
+        static $rcon = array(0,
+            0x01000000, 0x02000000, 0x04000000, 0x08000000, 0x10000000,
+            0x20000000, 0x40000000, 0x80000000, 0x1B000000, 0x36000000,
+            0x6C000000, 0xD8000000, 0xAB000000, 0x4D000000, 0x9A000000,
+            0x2F000000, 0x5E000000, 0xBC000000, 0x63000000, 0xC6000000,
+            0x97000000, 0x35000000, 0x6A000000, 0xD4000000, 0xB3000000,
+            0x7D000000, 0xFA000000, 0xEF000000, 0xC5000000, 0x91000000
+        );
+
+        if (isset($this->kl['key']) && $this->key === $this->kl['key'] && $this->key_length === $this->kl['key_length'] && $this->block_size === $this->kl['block_size']) {
+            // already expanded
+            return;
+        }
+        $this->kl = array('key' => $this->key, 'key_length' => $this->key_length, 'block_size' => $this->block_size);
+
+        $this->Nk = $this->key_length >> 2;
+        // see Rijndael-ammended.pdf#page=44
+        $this->Nr = max($this->Nk, $this->Nb) + 6;
+
+        // shift offsets for Nb = 5, 7 are defined in Rijndael-ammended.pdf#page=44,
+        //     "Table 8: Shift offsets in Shiftrow for the alternative block lengths"
+        // shift offsets for Nb = 4, 6, 8 are defined in Rijndael-ammended.pdf#page=14,
+        //     "Table 2: Shift offsets for different block lengths"
+        switch ($this->Nb) {
+            case 4:
+            case 5:
+            case 6:
+                $this->c = array(0, 1, 2, 3);
+                break;
+            case 7:
+                $this->c = array(0, 1, 2, 4);
+                break;
+            case 8:
+                $this->c = array(0, 1, 3, 4);
+        }
+
+        $w = array_values(unpack('N*words', $this->key));
+
+        $length = $this->Nb * ($this->Nr + 1);
+        for ($i = $this->Nk; $i < $length; $i++) {
+            $temp = $w[$i - 1];
+            if ($i % $this->Nk == 0) {
+                // according to <http://php.net/language.types.integer>, "the size of an integer is platform-dependent".
+                // on a 32-bit machine, it's 32-bits, and on a 64-bit machine, it's 64-bits. on a 32-bit machine,
+                // 0xFFFFFFFF << 8 == 0xFFFFFF00, but on a 64-bit machine, it equals 0xFFFFFFFF00. as such, doing 'and'
+                // with 0xFFFFFFFF (or 0xFFFFFF00) on a 32-bit machine is unnecessary, but on a 64-bit machine, it is.
+                $temp = (($temp << 8) & 0xFFFFFF00) | (($temp >> 24) & 0x000000FF); // rotWord
+                $temp = $this->_subWord($temp) ^ $rcon[$i / $this->Nk];
+            } elseif ($this->Nk > 6 && $i % $this->Nk == 4) {
+                $temp = $this->_subWord($temp);
+            }
+            $w[$i] = $w[$i - $this->Nk] ^ $temp;
+        }
+
+        // convert the key schedule from a vector of $Nb * ($Nr + 1) length to a matrix with $Nr + 1 rows and $Nb columns
+        // and generate the inverse key schedule.  more specifically,
+        // according to <http://csrc.nist.gov/archive/aes/rijndael/Rijndael-ammended.pdf#page=23> (section 5.3.3),
+        // "The key expansion for the Inverse Cipher is defined as follows:
+        //        1. Apply the Key Expansion.
+        //        2. Apply InvMixColumn to all Round Keys except the first and the last one."
+        // also, see fips-197.pdf#page=27, "5.3.5 Equivalent Inverse Cipher"
+        list($dt0, $dt1, $dt2, $dt3) = $this->_getInvTables();
+        $temp = $this->w = $this->dw = array();
+        for ($i = $row = $col = 0; $i < $length; $i++, $col++) {
+            if ($col == $this->Nb) {
+                if ($row == 0) {
+                    $this->dw[0] = $this->w[0];
+                } else {
+                    // subWord + invMixColumn + invSubWord = invMixColumn
+                    $j = 0;
+                    while ($j < $this->Nb) {
+                        $dw = $this->_subWord($this->w[$row][$j]);
+                        $temp[$j] = $dt0[$dw >> 24 & 0x000000FF] ^
+                                    $dt1[$dw >> 16 & 0x000000FF] ^
+                                    $dt2[$dw >>  8 & 0x000000FF] ^
+                                    $dt3[$dw       & 0x000000FF];
+                        $j++;
+                    }
+                    $this->dw[$row] = $temp;
+                }
+
+                $col = 0;
+                $row++;
+            }
+            $this->w[$row][$col] = $w[$i];
+        }
+
+        $this->dw[$row] = $this->w[$row];
+
+        // Converting to 1-dim key arrays (both ascending)
+        $this->dw = array_reverse($this->dw);
+        $w  = array_pop($this->w);
+        $dw = array_pop($this->dw);
+        foreach ($this->w as $r => $wr) {
+            foreach ($wr as $c => $wc) {
+                $w[]  = $wc;
+                $dw[] = $this->dw[$r][$c];
+            }
+        }
+        $this->w  = $w;
+        $this->dw = $dw;
+    }
+
+    /**
+     * Performs S-Box substitutions
+     *
+     * @access private
+     * @param int $word
+     */
+    function _subWord($word)
+    {
+        static $sbox;
+        if (empty($sbox)) {
+            list(, , , , $sbox) = $this->_getTables();
+        }
+
+        return  $sbox[$word       & 0x000000FF]        |
+               ($sbox[$word >>  8 & 0x000000FF] <<  8) |
+               ($sbox[$word >> 16 & 0x000000FF] << 16) |
+               ($sbox[$word >> 24 & 0x000000FF] << 24);
+    }
+
+    /**
+     * Provides the mixColumns and sboxes tables
+     *
+     * @see self::_encryptBlock()
+     * @see self::_setupInlineCrypt()
+     * @see self::_subWord()
+     * @access private
+     * @return array &$tables
+     */
+    function &_getTables()
+    {
+        static $tables;
+        if (empty($tables)) {
+            // according to <http://csrc.nist.gov/archive/aes/rijndael/Rijndael-ammended.pdf#page=19> (section 5.2.1),
+            // precomputed tables can be used in the mixColumns phase. in that example, they're assigned t0...t3, so
+            // those are the names we'll use.
+            $t3 = array_map('intval', array(
+                // with array_map('intval', ...) we ensure we have only int's and not
+                // some slower floats converted by php automatically on high values
+                0x6363A5C6, 0x7C7C84F8, 0x777799EE, 0x7B7B8DF6, 0xF2F20DFF, 0x6B6BBDD6, 0x6F6FB1DE, 0xC5C55491,
+                0x30305060, 0x01010302, 0x6767A9CE, 0x2B2B7D56, 0xFEFE19E7, 0xD7D762B5, 0xABABE64D, 0x76769AEC,
+                0xCACA458F, 0x82829D1F, 0xC9C94089, 0x7D7D87FA, 0xFAFA15EF, 0x5959EBB2, 0x4747C98E, 0xF0F00BFB,
+                0xADADEC41, 0xD4D467B3, 0xA2A2FD5F, 0xAFAFEA45, 0x9C9CBF23, 0xA4A4F753, 0x727296E4, 0xC0C05B9B,
+                0xB7B7C275, 0xFDFD1CE1, 0x9393AE3D, 0x26266A4C, 0x36365A6C, 0x3F3F417E, 0xF7F702F5, 0xCCCC4F83,
+                0x34345C68, 0xA5A5F451, 0xE5E534D1, 0xF1F108F9, 0x717193E2, 0xD8D873AB, 0x31315362, 0x15153F2A,
+                0x04040C08, 0xC7C75295, 0x23236546, 0xC3C35E9D, 0x18182830, 0x9696A137, 0x05050F0A, 0x9A9AB52F,
+                0x0707090E, 0x12123624, 0x80809B1B, 0xE2E23DDF, 0xEBEB26CD, 0x2727694E, 0xB2B2CD7F, 0x75759FEA,
+                0x09091B12, 0x83839E1D, 0x2C2C7458, 0x1A1A2E34, 0x1B1B2D36, 0x6E6EB2DC, 0x5A5AEEB4, 0xA0A0FB5B,
+                0x5252F6A4, 0x3B3B4D76, 0xD6D661B7, 0xB3B3CE7D, 0x29297B52, 0xE3E33EDD, 0x2F2F715E, 0x84849713,
+                0x5353F5A6, 0xD1D168B9, 0x00000000, 0xEDED2CC1, 0x20206040, 0xFCFC1FE3, 0xB1B1C879, 0x5B5BEDB6,
+                0x6A6ABED4, 0xCBCB468D, 0xBEBED967, 0x39394B72, 0x4A4ADE94, 0x4C4CD498, 0x5858E8B0, 0xCFCF4A85,
+                0xD0D06BBB, 0xEFEF2AC5, 0xAAAAE54F, 0xFBFB16ED, 0x4343C586, 0x4D4DD79A, 0x33335566, 0x85859411,
+                0x4545CF8A, 0xF9F910E9, 0x02020604, 0x7F7F81FE, 0x5050F0A0, 0x3C3C4478, 0x9F9FBA25, 0xA8A8E34B,
+                0x5151F3A2, 0xA3A3FE5D, 0x4040C080, 0x8F8F8A05, 0x9292AD3F, 0x9D9DBC21, 0x38384870, 0xF5F504F1,
+                0xBCBCDF63, 0xB6B6C177, 0xDADA75AF, 0x21216342, 0x10103020, 0xFFFF1AE5, 0xF3F30EFD, 0xD2D26DBF,
+                0xCDCD4C81, 0x0C0C1418, 0x13133526, 0xECEC2FC3, 0x5F5FE1BE, 0x9797A235, 0x4444CC88, 0x1717392E,
+                0xC4C45793, 0xA7A7F255, 0x7E7E82FC, 0x3D3D477A, 0x6464ACC8, 0x5D5DE7BA, 0x19192B32, 0x737395E6,
+                0x6060A0C0, 0x81819819, 0x4F4FD19E, 0xDCDC7FA3, 0x22226644, 0x2A2A7E54, 0x9090AB3B, 0x8888830B,
+                0x4646CA8C, 0xEEEE29C7, 0xB8B8D36B, 0x14143C28, 0xDEDE79A7, 0x5E5EE2BC, 0x0B0B1D16, 0xDBDB76AD,
+                0xE0E03BDB, 0x32325664, 0x3A3A4E74, 0x0A0A1E14, 0x4949DB92, 0x06060A0C, 0x24246C48, 0x5C5CE4B8,
+                0xC2C25D9F, 0xD3D36EBD, 0xACACEF43, 0x6262A6C4, 0x9191A839, 0x9595A431, 0xE4E437D3, 0x79798BF2,
+                0xE7E732D5, 0xC8C8438B, 0x3737596E, 0x6D6DB7DA, 0x8D8D8C01, 0xD5D564B1, 0x4E4ED29C, 0xA9A9E049,
+                0x6C6CB4D8, 0x5656FAAC, 0xF4F407F3, 0xEAEA25CF, 0x6565AFCA, 0x7A7A8EF4, 0xAEAEE947, 0x08081810,
+                0xBABAD56F, 0x787888F0, 0x25256F4A, 0x2E2E725C, 0x1C1C2438, 0xA6A6F157, 0xB4B4C773, 0xC6C65197,
+                0xE8E823CB, 0xDDDD7CA1, 0x74749CE8, 0x1F1F213E, 0x4B4BDD96, 0xBDBDDC61, 0x8B8B860D, 0x8A8A850F,
+                0x707090E0, 0x3E3E427C, 0xB5B5C471, 0x6666AACC, 0x4848D890, 0x03030506, 0xF6F601F7, 0x0E0E121C,
+                0x6161A3C2, 0x35355F6A, 0x5757F9AE, 0xB9B9D069, 0x86869117, 0xC1C15899, 0x1D1D273A, 0x9E9EB927,
+                0xE1E138D9, 0xF8F813EB, 0x9898B32B, 0x11113322, 0x6969BBD2, 0xD9D970A9, 0x8E8E8907, 0x9494A733,
+                0x9B9BB62D, 0x1E1E223C, 0x87879215, 0xE9E920C9, 0xCECE4987, 0x5555FFAA, 0x28287850, 0xDFDF7AA5,
+                0x8C8C8F03, 0xA1A1F859, 0x89898009, 0x0D0D171A, 0xBFBFDA65, 0xE6E631D7, 0x4242C684, 0x6868B8D0,
+                0x4141C382, 0x9999B029, 0x2D2D775A, 0x0F0F111E, 0xB0B0CB7B, 0x5454FCA8, 0xBBBBD66D, 0x16163A2C
+            ));
+
+            foreach ($t3 as $t3i) {
+                $t0[] = (($t3i << 24) & 0xFF000000) | (($t3i >>  8) & 0x00FFFFFF);
+                $t1[] = (($t3i << 16) & 0xFFFF0000) | (($t3i >> 16) & 0x0000FFFF);
+                $t2[] = (($t3i <<  8) & 0xFFFFFF00) | (($t3i >> 24) & 0x000000FF);
+            }
+
+            $tables = array(
+                // The Precomputed mixColumns tables t0 - t3
+                $t0,
+                $t1,
+                $t2,
+                $t3,
+                // The SubByte S-Box
+                array(
+                    0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
+                    0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,
+                    0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,
+                    0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,
+                    0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,
+                    0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,
+                    0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,
+                    0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,
+                    0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,
+                    0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,
+                    0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,
+                    0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,
+                    0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,
+                    0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,
+                    0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,
+                    0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16
+                )
+            );
+        }
+        return $tables;
+    }
+
+    /**
+     * Provides the inverse mixColumns and inverse sboxes tables
+     *
+     * @see self::_decryptBlock()
+     * @see self::_setupInlineCrypt()
+     * @see self::_setupKey()
+     * @access private
+     * @return array &$tables
+     */
+    function &_getInvTables()
+    {
+        static $tables;
+        if (empty($tables)) {
+            $dt3 = array_map('intval', array(
+                0xF4A75051, 0x4165537E, 0x17A4C31A, 0x275E963A, 0xAB6BCB3B, 0x9D45F11F, 0xFA58ABAC, 0xE303934B,
+                0x30FA5520, 0x766DF6AD, 0xCC769188, 0x024C25F5, 0xE5D7FC4F, 0x2ACBD7C5, 0x35448026, 0x62A38FB5,
+                0xB15A49DE, 0xBA1B6725, 0xEA0E9845, 0xFEC0E15D, 0x2F7502C3, 0x4CF01281, 0x4697A38D, 0xD3F9C66B,
+                0x8F5FE703, 0x929C9515, 0x6D7AEBBF, 0x5259DA95, 0xBE832DD4, 0x7421D358, 0xE0692949, 0xC9C8448E,
+                0xC2896A75, 0x8E7978F4, 0x583E6B99, 0xB971DD27, 0xE14FB6BE, 0x88AD17F0, 0x20AC66C9, 0xCE3AB47D,
+                0xDF4A1863, 0x1A3182E5, 0x51336097, 0x537F4562, 0x6477E0B1, 0x6BAE84BB, 0x81A01CFE, 0x082B94F9,
+                0x48685870, 0x45FD198F, 0xDE6C8794, 0x7BF8B752, 0x73D323AB, 0x4B02E272, 0x1F8F57E3, 0x55AB2A66,
+                0xEB2807B2, 0xB5C2032F, 0xC57B9A86, 0x3708A5D3, 0x2887F230, 0xBFA5B223, 0x036ABA02, 0x16825CED,
+                0xCF1C2B8A, 0x79B492A7, 0x07F2F0F3, 0x69E2A14E, 0xDAF4CD65, 0x05BED506, 0x34621FD1, 0xA6FE8AC4,
+                0x2E539D34, 0xF355A0A2, 0x8AE13205, 0xF6EB75A4, 0x83EC390B, 0x60EFAA40, 0x719F065E, 0x6E1051BD,
+                0x218AF93E, 0xDD063D96, 0x3E05AEDD, 0xE6BD464D, 0x548DB591, 0xC45D0571, 0x06D46F04, 0x5015FF60,
+                0x98FB2419, 0xBDE997D6, 0x4043CC89, 0xD99E7767, 0xE842BDB0, 0x898B8807, 0x195B38E7, 0xC8EEDB79,
+                0x7C0A47A1, 0x420FE97C, 0x841EC9F8, 0x00000000, 0x80868309, 0x2BED4832, 0x1170AC1E, 0x5A724E6C,
+                0x0EFFFBFD, 0x8538560F, 0xAED51E3D, 0x2D392736, 0x0FD9640A, 0x5CA62168, 0x5B54D19B, 0x362E3A24,
+                0x0A67B10C, 0x57E70F93, 0xEE96D2B4, 0x9B919E1B, 0xC0C54F80, 0xDC20A261, 0x774B695A, 0x121A161C,
+                0x93BA0AE2, 0xA02AE5C0, 0x22E0433C, 0x1B171D12, 0x090D0B0E, 0x8BC7ADF2, 0xB6A8B92D, 0x1EA9C814,
+                0xF1198557, 0x75074CAF, 0x99DDBBEE, 0x7F60FDA3, 0x01269FF7, 0x72F5BC5C, 0x663BC544, 0xFB7E345B,
+                0x4329768B, 0x23C6DCCB, 0xEDFC68B6, 0xE4F163B8, 0x31DCCAD7, 0x63851042, 0x97224013, 0xC6112084,
+                0x4A247D85, 0xBB3DF8D2, 0xF93211AE, 0x29A16DC7, 0x9E2F4B1D, 0xB230F3DC, 0x8652EC0D, 0xC1E3D077,
+                0xB3166C2B, 0x70B999A9, 0x9448FA11, 0xE9642247, 0xFC8CC4A8, 0xF03F1AA0, 0x7D2CD856, 0x3390EF22,
+                0x494EC787, 0x38D1C1D9, 0xCAA2FE8C, 0xD40B3698, 0xF581CFA6, 0x7ADE28A5, 0xB78E26DA, 0xADBFA43F,
+                0x3A9DE42C, 0x78920D50, 0x5FCC9B6A, 0x7E466254, 0x8D13C2F6, 0xD8B8E890, 0x39F75E2E, 0xC3AFF582,
+                0x5D80BE9F, 0xD0937C69, 0xD52DA96F, 0x2512B3CF, 0xAC993BC8, 0x187DA710, 0x9C636EE8, 0x3BBB7BDB,
+                0x267809CD, 0x5918F46E, 0x9AB701EC, 0x4F9AA883, 0x956E65E6, 0xFFE67EAA, 0xBCCF0821, 0x15E8E6EF,
+                0xE79BD9BA, 0x6F36CE4A, 0x9F09D4EA, 0xB07CD629, 0xA4B2AF31, 0x3F23312A, 0xA59430C6, 0xA266C035,
+                0x4EBC3774, 0x82CAA6FC, 0x90D0B0E0, 0xA7D81533, 0x04984AF1, 0xECDAF741, 0xCD500E7F, 0x91F62F17,
+                0x4DD68D76, 0xEFB04D43, 0xAA4D54CC, 0x9604DFE4, 0xD1B5E39E, 0x6A881B4C, 0x2C1FB8C1, 0x65517F46,
+                0x5EEA049D, 0x8C355D01, 0x877473FA, 0x0B412EFB, 0x671D5AB3, 0xDBD25292, 0x105633E9, 0xD647136D,
+                0xD7618C9A, 0xA10C7A37, 0xF8148E59, 0x133C89EB, 0xA927EECE, 0x61C935B7, 0x1CE5EDE1, 0x47B13C7A,
+                0xD2DF599C, 0xF2733F55, 0x14CE7918, 0xC737BF73, 0xF7CDEA53, 0xFDAA5B5F, 0x3D6F14DF, 0x44DB8678,
+                0xAFF381CA, 0x68C43EB9, 0x24342C38, 0xA3405FC2, 0x1DC37216, 0xE2250CBC, 0x3C498B28, 0x0D9541FF,
+                0xA8017139, 0x0CB3DE08, 0xB4E49CD8, 0x56C19064, 0xCB84617B, 0x32B670D5, 0x6C5C7448, 0xB85742D0
+            ));
+
+            foreach ($dt3 as $dt3i) {
+                $dt0[] = (($dt3i << 24) & 0xFF000000) | (($dt3i >>  8) & 0x00FFFFFF);
+                $dt1[] = (($dt3i << 16) & 0xFFFF0000) | (($dt3i >> 16) & 0x0000FFFF);
+                $dt2[] = (($dt3i <<  8) & 0xFFFFFF00) | (($dt3i >> 24) & 0x000000FF);
+            };
+
+            $tables = array(
+                // The Precomputed inverse mixColumns tables dt0 - dt3
+                $dt0,
+                $dt1,
+                $dt2,
+                $dt3,
+                // The inverse SubByte S-Box
+                array(
+                    0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,
+                    0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,
+                    0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,
+                    0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,
+                    0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,
+                    0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,
+                    0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,
+                    0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,
+                    0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,
+                    0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,
+                    0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,
+                    0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,
+                    0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,
+                    0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,
+                    0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,
+                    0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D
+                )
+            );
+        }
+        return $tables;
+    }
+
+    /**
+     * Setup the performance-optimized function for de/encrypt()
+     *
+     * @see \phpseclib\Crypt\Base::_setupInlineCrypt()
+     * @access private
+     */
+    function _setupInlineCrypt()
+    {
+        // Note: _setupInlineCrypt() will be called only if $this->changed === true
+        // So here we are'nt under the same heavy timing-stress as we are in _de/encryptBlock() or de/encrypt().
+        // However...the here generated function- $code, stored as php callback in $this->inline_crypt, must work as fast as even possible.
+
+        $lambda_functions =& self::_getLambdaFunctions();
+
+        // We create max. 10 hi-optimized code for memory reason. Means: For each $key one ultra fast inline-crypt function.
+        // (Currently, for Crypt_Rijndael/AES, one generated $lambda_function cost on php5.5@32bit ~80kb unfreeable mem and ~130kb on php5.5@64bit)
+        // After that, we'll still create very fast optimized code but not the hi-ultimative code, for each $mode one.
+        $gen_hi_opt_code = (bool)(count($lambda_functions) < 10);
+
+        // Generation of a uniqe hash for our generated code
+        $code_hash = "Crypt_Rijndael, {$this->mode}, {$this->Nr}, {$this->Nb}";
+        if ($gen_hi_opt_code) {
+            $code_hash = str_pad($code_hash, 32) . $this->_hashInlineCryptFunction($this->key);
+        }
+
+        if (!isset($lambda_functions[$code_hash])) {
+            switch (true) {
+                case $gen_hi_opt_code:
+                    // The hi-optimized $lambda_functions will use the key-words hardcoded for better performance.
+                    $w  = $this->w;
+                    $dw = $this->dw;
+                    $init_encrypt = '';
+                    $init_decrypt = '';
+                    break;
+                default:
+                    for ($i = 0, $cw = count($this->w); $i < $cw; ++$i) {
+                        $w[]  = '$w['  . $i . ']';
+                        $dw[] = '$dw[' . $i . ']';
+                    }
+                    $init_encrypt = '$w  = $self->w;';
+                    $init_decrypt = '$dw = $self->dw;';
+            }
+
+            $Nr = $this->Nr;
+            $Nb = $this->Nb;
+            $c  = $this->c;
+
+            // Generating encrypt code:
+            $init_encrypt.= '
+                static $tables;
+                if (empty($tables)) {
+                    $tables = &$self->_getTables();
+                }
+                $t0   = $tables[0];
+                $t1   = $tables[1];
+                $t2   = $tables[2];
+                $t3   = $tables[3];
+                $sbox = $tables[4];
+            ';
+
+            $s  = 'e';
+            $e  = 's';
+            $wc = $Nb - 1;
+
+            // Preround: addRoundKey
+            $encrypt_block = '$in = unpack("N*", $in);'."\n";
+            for ($i = 0; $i < $Nb; ++$i) {
+                $encrypt_block .= '$s'.$i.' = $in['.($i + 1).'] ^ '.$w[++$wc].";\n";
+            }
+
+            // Mainrounds: shiftRows + subWord + mixColumns + addRoundKey
+            for ($round = 1; $round < $Nr; ++$round) {
+                list($s, $e) = array($e, $s);
+                for ($i = 0; $i < $Nb; ++$i) {
+                    $encrypt_block.=
+                        '$'.$e.$i.' =
+                        $t0[($'.$s.$i                  .' >> 24) & 0xff] ^
+                        $t1[($'.$s.(($i + $c[1]) % $Nb).' >> 16) & 0xff] ^
+                        $t2[($'.$s.(($i + $c[2]) % $Nb).' >>  8) & 0xff] ^
+                        $t3[ $'.$s.(($i + $c[3]) % $Nb).'        & 0xff] ^
+                        '.$w[++$wc].";\n";
+                }
+            }
+
+            // Finalround: subWord + shiftRows + addRoundKey
+            for ($i = 0; $i < $Nb; ++$i) {
+                $encrypt_block.=
+                    '$'.$e.$i.' =
+                     $sbox[ $'.$e.$i.'        & 0xff]        |
+                    ($sbox[($'.$e.$i.' >>  8) & 0xff] <<  8) |
+                    ($sbox[($'.$e.$i.' >> 16) & 0xff] << 16) |
+                    ($sbox[($'.$e.$i.' >> 24) & 0xff] << 24);'."\n";
+            }
+            $encrypt_block .= '$in = pack("N*"'."\n";
+            for ($i = 0; $i < $Nb; ++$i) {
+                $encrypt_block.= ',
+                    ($'.$e.$i                  .' & '.((int)0xFF000000).') ^
+                    ($'.$e.(($i + $c[1]) % $Nb).' &         0x00FF0000   ) ^
+                    ($'.$e.(($i + $c[2]) % $Nb).' &         0x0000FF00   ) ^
+                    ($'.$e.(($i + $c[3]) % $Nb).' &         0x000000FF   ) ^
+                    '.$w[$i]."\n";
+            }
+            $encrypt_block .= ');';
+
+            // Generating decrypt code:
+            $init_decrypt.= '
+                static $invtables;
+                if (empty($invtables)) {
+                    $invtables = &$self->_getInvTables();
+                }
+                $dt0   = $invtables[0];
+                $dt1   = $invtables[1];
+                $dt2   = $invtables[2];
+                $dt3   = $invtables[3];
+                $isbox = $invtables[4];
+            ';
+
+            $s  = 'e';
+            $e  = 's';
+            $wc = $Nb - 1;
+
+            // Preround: addRoundKey
+            $decrypt_block = '$in = unpack("N*", $in);'."\n";
+            for ($i = 0; $i < $Nb; ++$i) {
+                $decrypt_block .= '$s'.$i.' = $in['.($i + 1).'] ^ '.$dw[++$wc].';'."\n";
+            }
+
+            // Mainrounds: shiftRows + subWord + mixColumns + addRoundKey
+            for ($round = 1; $round < $Nr; ++$round) {
+                list($s, $e) = array($e, $s);
+                for ($i = 0; $i < $Nb; ++$i) {
+                    $decrypt_block.=
+                        '$'.$e.$i.' =
+                        $dt0[($'.$s.$i                        .' >> 24) & 0xff] ^
+                        $dt1[($'.$s.(($Nb + $i - $c[1]) % $Nb).' >> 16) & 0xff] ^
+                        $dt2[($'.$s.(($Nb + $i - $c[2]) % $Nb).' >>  8) & 0xff] ^
+                        $dt3[ $'.$s.(($Nb + $i - $c[3]) % $Nb).'        & 0xff] ^
+                        '.$dw[++$wc].";\n";
+                }
+            }
+
+            // Finalround: subWord + shiftRows + addRoundKey
+            for ($i = 0; $i < $Nb; ++$i) {
+                $decrypt_block.=
+                    '$'.$e.$i.' =
+                     $isbox[ $'.$e.$i.'        & 0xff]        |
+                    ($isbox[($'.$e.$i.' >>  8) & 0xff] <<  8) |
+                    ($isbox[($'.$e.$i.' >> 16) & 0xff] << 16) |
+                    ($isbox[($'.$e.$i.' >> 24) & 0xff] << 24);'."\n";
+            }
+            $decrypt_block .= '$in = pack("N*"'."\n";
+            for ($i = 0; $i < $Nb; ++$i) {
+                $decrypt_block.= ',
+                    ($'.$e.$i.                        ' & '.((int)0xFF000000).') ^
+                    ($'.$e.(($Nb + $i - $c[1]) % $Nb).' &         0x00FF0000   ) ^
+                    ($'.$e.(($Nb + $i - $c[2]) % $Nb).' &         0x0000FF00   ) ^
+                    ($'.$e.(($Nb + $i - $c[3]) % $Nb).' &         0x000000FF   ) ^
+                    '.$dw[$i]."\n";
+            }
+            $decrypt_block .= ');';
+
+            $lambda_functions[$code_hash] = $this->_createInlineCryptFunction(
+                array(
+                   'init_crypt'    => '',
+                   'init_encrypt'  => $init_encrypt,
+                   'init_decrypt'  => $init_decrypt,
+                   'encrypt_block' => $encrypt_block,
+                   'decrypt_block' => $decrypt_block
+                )
+            );
+        }
+        $this->inline_crypt = $lambda_functions[$code_hash];
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/TripleDES.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/TripleDES.php
new file mode 100644
index 0000000..a2c4166
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/TripleDES.php
@@ -0,0 +1,460 @@
+<?php
+
+/**
+ * Pure-PHP implementation of Triple DES.
+ *
+ * Uses mcrypt, if available, and an internal implementation, otherwise.  Operates in the EDE3 mode (encrypt-decrypt-encrypt).
+ *
+ * PHP version 5
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $des = new \phpseclib\Crypt\TripleDES();
+ *
+ *    $des->setKey('abcdefghijklmnopqrstuvwx');
+ *
+ *    $size = 10 * 1024;
+ *    $plaintext = '';
+ *    for ($i = 0; $i < $size; $i++) {
+ *        $plaintext.= 'a';
+ *    }
+ *
+ *    echo $des->decrypt($des->encrypt($plaintext));
+ * ?>
+ * </code>
+ *
+ * @category  Crypt
+ * @package   TripleDES
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2007 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Pure-PHP implementation of Triple DES.
+ *
+ * @package TripleDES
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @access  public
+ */
+class TripleDES extends DES
+{
+    /**
+     * Encrypt / decrypt using inner chaining
+     *
+     * Inner chaining is used by SSH-1 and is generally considered to be less secure then outer chaining (self::MODE_CBC3).
+     */
+    const MODE_3CBC = -2;
+
+    /**
+     * Encrypt / decrypt using outer chaining
+     *
+     * Outer chaining is used by SSH-2 and when the mode is set to \phpseclib\Crypt\Base::MODE_CBC.
+     */
+    const MODE_CBC3 = Base::MODE_CBC;
+
+    /**
+     * Key Length (in bytes)
+     *
+     * @see \phpseclib\Crypt\TripleDES::setKeyLength()
+     * @var int
+     * @access private
+     */
+    var $key_length = 24;
+
+    /**
+     * The default salt used by setPassword()
+     *
+     * @see \phpseclib\Crypt\Base::password_default_salt
+     * @see \phpseclib\Crypt\Base::setPassword()
+     * @var string
+     * @access private
+     */
+    var $password_default_salt = 'phpseclib';
+
+    /**
+     * The mcrypt specific name of the cipher
+     *
+     * @see \phpseclib\Crypt\DES::cipher_name_mcrypt
+     * @see \phpseclib\Crypt\Base::cipher_name_mcrypt
+     * @var string
+     * @access private
+     */
+    var $cipher_name_mcrypt = 'tripledes';
+
+    /**
+     * Optimizing value while CFB-encrypting
+     *
+     * @see \phpseclib\Crypt\Base::cfb_init_len
+     * @var int
+     * @access private
+     */
+    var $cfb_init_len = 750;
+
+    /**
+     * max possible size of $key
+     *
+     * @see self::setKey()
+     * @see \phpseclib\Crypt\DES::setKey()
+     * @var string
+     * @access private
+     */
+    var $key_length_max = 24;
+
+    /**
+     * Internal flag whether using self::MODE_3CBC or not
+     *
+     * @var bool
+     * @access private
+     */
+    var $mode_3cbc;
+
+    /**
+     * The \phpseclib\Crypt\DES objects
+     *
+     * Used only if $mode_3cbc === true
+     *
+     * @var array
+     * @access private
+     */
+    var $des;
+
+    /**
+     * Default Constructor.
+     *
+     * Determines whether or not the mcrypt extension should be used.
+     *
+     * $mode could be:
+     *
+     * - \phpseclib\Crypt\Base::MODE_ECB
+     *
+     * - \phpseclib\Crypt\Base::MODE_CBC
+     *
+     * - \phpseclib\Crypt\Base::MODE_CTR
+     *
+     * - \phpseclib\Crypt\Base::MODE_CFB
+     *
+     * - \phpseclib\Crypt\Base::MODE_OFB
+     *
+     * - \phpseclib\Crypt\TripleDES::MODE_3CBC
+     *
+     * If not explicitly set, \phpseclib\Crypt\Base::MODE_CBC will be used.
+     *
+     * @see \phpseclib\Crypt\DES::__construct()
+     * @see \phpseclib\Crypt\Base::__construct()
+     * @param int $mode
+     * @access public
+     */
+    function __construct($mode = Base::MODE_CBC)
+    {
+        switch ($mode) {
+            // In case of self::MODE_3CBC, we init as CRYPT_DES_MODE_CBC
+            // and additional flag us internally as 3CBC
+            case self::MODE_3CBC:
+                parent::__construct(Base::MODE_CBC);
+                $this->mode_3cbc = true;
+
+                // This three $des'es will do the 3CBC work (if $key > 64bits)
+                $this->des = array(
+                    new DES(Base::MODE_CBC),
+                    new DES(Base::MODE_CBC),
+                    new DES(Base::MODE_CBC),
+                );
+
+                // we're going to be doing the padding, ourselves, so disable it in the \phpseclib\Crypt\DES objects
+                $this->des[0]->disablePadding();
+                $this->des[1]->disablePadding();
+                $this->des[2]->disablePadding();
+                break;
+            // If not 3CBC, we init as usual
+            default:
+                parent::__construct($mode);
+        }
+    }
+
+    /**
+     * Test for engine validity
+     *
+     * This is mainly just a wrapper to set things up for \phpseclib\Crypt\Base::isValidEngine()
+     *
+     * @see \phpseclib\Crypt\Base::__construct()
+     * @param int $engine
+     * @access public
+     * @return bool
+     */
+    function isValidEngine($engine)
+    {
+        if ($engine == self::ENGINE_OPENSSL) {
+            $this->cipher_name_openssl_ecb = 'des-ede3';
+            $mode = $this->_openssl_translate_mode();
+            $this->cipher_name_openssl = $mode == 'ecb' ? 'des-ede3' : 'des-ede3-' . $mode;
+        }
+
+        return parent::isValidEngine($engine);
+    }
+
+    /**
+     * Sets the initialization vector. (optional)
+     *
+     * SetIV is not required when \phpseclib\Crypt\Base::MODE_ECB is being used.  If not explicitly set, it'll be assumed
+     * to be all zero's.
+     *
+     * @see \phpseclib\Crypt\Base::setIV()
+     * @access public
+     * @param string $iv
+     */
+    function setIV($iv)
+    {
+        parent::setIV($iv);
+        if ($this->mode_3cbc) {
+            $this->des[0]->setIV($iv);
+            $this->des[1]->setIV($iv);
+            $this->des[2]->setIV($iv);
+        }
+    }
+
+    /**
+     * Sets the key length.
+     *
+     * Valid key lengths are 64, 128 and 192
+     *
+     * @see \phpseclib\Crypt\Base:setKeyLength()
+     * @access public
+     * @param int $length
+     */
+    function setKeyLength($length)
+    {
+        $length >>= 3;
+        switch (true) {
+            case $length <= 8:
+                $this->key_length = 8;
+                break;
+            case $length <= 16:
+                $this->key_length = 16;
+                break;
+            default:
+                $this->key_length = 24;
+        }
+
+        parent::setKeyLength($length);
+    }
+
+    /**
+     * Sets the key.
+     *
+     * Keys can be of any length.  Triple DES, itself, can use 128-bit (eg. strlen($key) == 16) or
+     * 192-bit (eg. strlen($key) == 24) keys.  This function pads and truncates $key as appropriate.
+     *
+     * DES also requires that every eighth bit be a parity bit, however, we'll ignore that.
+     *
+     * If the key is not explicitly set, it'll be assumed to be all null bytes.
+     *
+     * @access public
+     * @see \phpseclib\Crypt\DES::setKey()
+     * @see \phpseclib\Crypt\Base::setKey()
+     * @param string $key
+     */
+    function setKey($key)
+    {
+        $length = $this->explicit_key_length ? $this->key_length : strlen($key);
+        if ($length > 8) {
+            $key = str_pad(substr($key, 0, 24), 24, chr(0));
+            // if $key is between 64 and 128-bits, use the first 64-bits as the last, per this:
+            // http://php.net/function.mcrypt-encrypt#47973
+            $key = $length <= 16 ? substr_replace($key, substr($key, 0, 8), 16) : substr($key, 0, 24);
+        } else {
+            $key = str_pad($key, 8, chr(0));
+        }
+        parent::setKey($key);
+
+        // And in case of self::MODE_3CBC:
+        // if key <= 64bits we not need the 3 $des to work,
+        // because we will then act as regular DES-CBC with just a <= 64bit key.
+        // So only if the key > 64bits (> 8 bytes) we will call setKey() for the 3 $des.
+        if ($this->mode_3cbc && $length > 8) {
+            $this->des[0]->setKey(substr($key,  0, 8));
+            $this->des[1]->setKey(substr($key,  8, 8));
+            $this->des[2]->setKey(substr($key, 16, 8));
+        }
+    }
+
+    /**
+     * Encrypts a message.
+     *
+     * @see \phpseclib\Crypt\Base::encrypt()
+     * @access public
+     * @param string $plaintext
+     * @return string $cipertext
+     */
+    function encrypt($plaintext)
+    {
+        // parent::en/decrypt() is able to do all the work for all modes and keylengths,
+        // except for: self::MODE_3CBC (inner chaining CBC) with a key > 64bits
+
+        // if the key is smaller then 8, do what we'd normally do
+        if ($this->mode_3cbc && strlen($this->key) > 8) {
+            return $this->des[2]->encrypt(
+                $this->des[1]->decrypt(
+                    $this->des[0]->encrypt(
+                        $this->_pad($plaintext)
+                    )
+                )
+            );
+        }
+
+        return parent::encrypt($plaintext);
+    }
+
+    /**
+     * Decrypts a message.
+     *
+     * @see \phpseclib\Crypt\Base::decrypt()
+     * @access public
+     * @param string $ciphertext
+     * @return string $plaintext
+     */
+    function decrypt($ciphertext)
+    {
+        if ($this->mode_3cbc && strlen($this->key) > 8) {
+            return $this->_unpad(
+                $this->des[0]->decrypt(
+                    $this->des[1]->encrypt(
+                        $this->des[2]->decrypt(
+                            str_pad($ciphertext, (strlen($ciphertext) + 7) & 0xFFFFFFF8, "\0")
+                        )
+                    )
+                )
+            );
+        }
+
+        return parent::decrypt($ciphertext);
+    }
+
+    /**
+     * Treat consecutive "packets" as if they are a continuous buffer.
+     *
+     * Say you have a 16-byte plaintext $plaintext.  Using the default behavior, the two following code snippets
+     * will yield different outputs:
+     *
+     * <code>
+     *    echo $des->encrypt(substr($plaintext, 0, 8));
+     *    echo $des->encrypt(substr($plaintext, 8, 8));
+     * </code>
+     * <code>
+     *    echo $des->encrypt($plaintext);
+     * </code>
+     *
+     * The solution is to enable the continuous buffer.  Although this will resolve the above discrepancy, it creates
+     * another, as demonstrated with the following:
+     *
+     * <code>
+     *    $des->encrypt(substr($plaintext, 0, 8));
+     *    echo $des->decrypt($des->encrypt(substr($plaintext, 8, 8)));
+     * </code>
+     * <code>
+     *    echo $des->decrypt($des->encrypt(substr($plaintext, 8, 8)));
+     * </code>
+     *
+     * With the continuous buffer disabled, these would yield the same output.  With it enabled, they yield different
+     * outputs.  The reason is due to the fact that the initialization vector's change after every encryption /
+     * decryption round when the continuous buffer is enabled.  When it's disabled, they remain constant.
+     *
+     * Put another way, when the continuous buffer is enabled, the state of the \phpseclib\Crypt\DES() object changes after each
+     * encryption / decryption round, whereas otherwise, it'd remain constant.  For this reason, it's recommended that
+     * continuous buffers not be used.  They do offer better security and are, in fact, sometimes required (SSH uses them),
+     * however, they are also less intuitive and more likely to cause you problems.
+     *
+     * @see \phpseclib\Crypt\Base::enableContinuousBuffer()
+     * @see self::disableContinuousBuffer()
+     * @access public
+     */
+    function enableContinuousBuffer()
+    {
+        parent::enableContinuousBuffer();
+        if ($this->mode_3cbc) {
+            $this->des[0]->enableContinuousBuffer();
+            $this->des[1]->enableContinuousBuffer();
+            $this->des[2]->enableContinuousBuffer();
+        }
+    }
+
+    /**
+     * Treat consecutive packets as if they are a discontinuous buffer.
+     *
+     * The default behavior.
+     *
+     * @see \phpseclib\Crypt\Base::disableContinuousBuffer()
+     * @see self::enableContinuousBuffer()
+     * @access public
+     */
+    function disableContinuousBuffer()
+    {
+        parent::disableContinuousBuffer();
+        if ($this->mode_3cbc) {
+            $this->des[0]->disableContinuousBuffer();
+            $this->des[1]->disableContinuousBuffer();
+            $this->des[2]->disableContinuousBuffer();
+        }
+    }
+
+    /**
+     * Creates the key schedule
+     *
+     * @see \phpseclib\Crypt\DES::_setupKey()
+     * @see \phpseclib\Crypt\Base::_setupKey()
+     * @access private
+     */
+    function _setupKey()
+    {
+        switch (true) {
+            // if $key <= 64bits we configure our internal pure-php cipher engine
+            // to act as regular [1]DES, not as 3DES. mcrypt.so::tripledes does the same.
+            case strlen($this->key) <= 8:
+                $this->des_rounds = 1;
+                break;
+
+            // otherwise, if $key > 64bits, we configure our engine to work as 3DES.
+            default:
+                $this->des_rounds = 3;
+
+                // (only) if 3CBC is used we have, of course, to setup the $des[0-2] keys also separately.
+                if ($this->mode_3cbc) {
+                    $this->des[0]->_setupKey();
+                    $this->des[1]->_setupKey();
+                    $this->des[2]->_setupKey();
+
+                    // because $des[0-2] will, now, do all the work we can return here
+                    // not need unnecessary stress parent::_setupKey() with our, now unused, $key.
+                    return;
+                }
+        }
+        // setup our key
+        parent::_setupKey();
+    }
+
+    /**
+     * Sets the internal crypt engine
+     *
+     * @see \phpseclib\Crypt\Base::__construct()
+     * @see \phpseclib\Crypt\Base::setPreferredEngine()
+     * @param int $engine
+     * @access public
+     * @return int
+     */
+    function setPreferredEngine($engine)
+    {
+        if ($this->mode_3cbc) {
+            $this->des[0]->setPreferredEngine($engine);
+            $this->des[1]->setPreferredEngine($engine);
+            $this->des[2]->setPreferredEngine($engine);
+        }
+
+        return parent::setPreferredEngine($engine);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Twofish.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Twofish.php
new file mode 100644
index 0000000..70980a2
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Crypt/Twofish.php
@@ -0,0 +1,816 @@
+<?php
+
+/**
+ * Pure-PHP implementation of Twofish.
+ *
+ * Uses mcrypt, if available, and an internal implementation, otherwise.
+ *
+ * PHP version 5
+ *
+ * Useful resources are as follows:
+ *
+ *  - {@link http://en.wikipedia.org/wiki/Twofish Wikipedia description of Twofish}
+ *
+ * Here's a short example of how to use this library:
+ * <code>
+ * <?php
+ *    include 'vendor/autoload.php';
+ *
+ *    $twofish = new \phpseclib\Crypt\Twofish();
+ *
+ *    $twofish->setKey('12345678901234567890123456789012');
+ *
+ *    $plaintext = str_repeat('a', 1024);
+ *
+ *    echo $twofish->decrypt($twofish->encrypt($plaintext));
+ * ?>
+ * </code>
+ *
+ * @category  Crypt
+ * @package   Twofish
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @author    Hans-Juergen Petrich <petrich@tronic-media.com>
+ * @copyright 2007 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+namespace phpseclib\Crypt;
+
+/**
+ * Pure-PHP implementation of Twofish.
+ *
+ * @package Twofish
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @author  Hans-Juergen Petrich <petrich@tronic-media.com>
+ * @access  public
+ */
+class Twofish extends Base
+{
+    /**
+     * The mcrypt specific name of the cipher
+     *
+     * @see \phpseclib\Crypt\Base::cipher_name_mcrypt
+     * @var string
+     * @access private
+     */
+    var $cipher_name_mcrypt = 'twofish';
+
+    /**
+     * Optimizing value while CFB-encrypting
+     *
+     * @see \phpseclib\Crypt\Base::cfb_init_len
+     * @var int
+     * @access private
+     */
+    var $cfb_init_len = 800;
+
+    /**
+     * Q-Table
+     *
+     * @var array
+     * @access private
+     */
+    var $q0 = array(
+        0xA9, 0x67, 0xB3, 0xE8, 0x04, 0xFD, 0xA3, 0x76,
+        0x9A, 0x92, 0x80, 0x78, 0xE4, 0xDD, 0xD1, 0x38,
+        0x0D, 0xC6, 0x35, 0x98, 0x18, 0xF7, 0xEC, 0x6C,
+        0x43, 0x75, 0x37, 0x26, 0xFA, 0x13, 0x94, 0x48,
+        0xF2, 0xD0, 0x8B, 0x30, 0x84, 0x54, 0xDF, 0x23,
+        0x19, 0x5B, 0x3D, 0x59, 0xF3, 0xAE, 0xA2, 0x82,
+        0x63, 0x01, 0x83, 0x2E, 0xD9, 0x51, 0x9B, 0x7C,
+        0xA6, 0xEB, 0xA5, 0xBE, 0x16, 0x0C, 0xE3, 0x61,
+        0xC0, 0x8C, 0x3A, 0xF5, 0x73, 0x2C, 0x25, 0x0B,
+        0xBB, 0x4E, 0x89, 0x6B, 0x53, 0x6A, 0xB4, 0xF1,
+        0xE1, 0xE6, 0xBD, 0x45, 0xE2, 0xF4, 0xB6, 0x66,
+        0xCC, 0x95, 0x03, 0x56, 0xD4, 0x1C, 0x1E, 0xD7,
+        0xFB, 0xC3, 0x8E, 0xB5, 0xE9, 0xCF, 0xBF, 0xBA,
+        0xEA, 0x77, 0x39, 0xAF, 0x33, 0xC9, 0x62, 0x71,
+        0x81, 0x79, 0x09, 0xAD, 0x24, 0xCD, 0xF9, 0xD8,
+        0xE5, 0xC5, 0xB9, 0x4D, 0x44, 0x08, 0x86, 0xE7,
+        0xA1, 0x1D, 0xAA, 0xED, 0x06, 0x70, 0xB2, 0xD2,
+        0x41, 0x7B, 0xA0, 0x11, 0x31, 0xC2, 0x27, 0x90,
+        0x20, 0xF6, 0x60, 0xFF, 0x96, 0x5C, 0xB1, 0xAB,
+        0x9E, 0x9C, 0x52, 0x1B, 0x5F, 0x93, 0x0A, 0xEF,
+        0x91, 0x85, 0x49, 0xEE, 0x2D, 0x4F, 0x8F, 0x3B,
+        0x47, 0x87, 0x6D, 0x46, 0xD6, 0x3E, 0x69, 0x64,
+        0x2A, 0xCE, 0xCB, 0x2F, 0xFC, 0x97, 0x05, 0x7A,
+        0xAC, 0x7F, 0xD5, 0x1A, 0x4B, 0x0E, 0xA7, 0x5A,
+        0x28, 0x14, 0x3F, 0x29, 0x88, 0x3C, 0x4C, 0x02,
+        0xB8, 0xDA, 0xB0, 0x17, 0x55, 0x1F, 0x8A, 0x7D,
+        0x57, 0xC7, 0x8D, 0x74, 0xB7, 0xC4, 0x9F, 0x72,
+        0x7E, 0x15, 0x22, 0x12, 0x58, 0x07, 0x99, 0x34,
+        0x6E, 0x50, 0xDE, 0x68, 0x65, 0xBC, 0xDB, 0xF8,
+        0xC8, 0xA8, 0x2B, 0x40, 0xDC, 0xFE, 0x32, 0xA4,
+        0xCA, 0x10, 0x21, 0xF0, 0xD3, 0x5D, 0x0F, 0x00,
+        0x6F, 0x9D, 0x36, 0x42, 0x4A, 0x5E, 0xC1, 0xE0
+    );
+
+    /**
+     * Q-Table
+     *
+     * @var array
+     * @access private
+     */
+    var $q1 = array(
+        0x75, 0xF3, 0xC6, 0xF4, 0xDB, 0x7B, 0xFB, 0xC8,
+        0x4A, 0xD3, 0xE6, 0x6B, 0x45, 0x7D, 0xE8, 0x4B,
+        0xD6, 0x32, 0xD8, 0xFD, 0x37, 0x71, 0xF1, 0xE1,
+        0x30, 0x0F, 0xF8, 0x1B, 0x87, 0xFA, 0x06, 0x3F,
+        0x5E, 0xBA, 0xAE, 0x5B, 0x8A, 0x00, 0xBC, 0x9D,
+        0x6D, 0xC1, 0xB1, 0x0E, 0x80, 0x5D, 0xD2, 0xD5,
+        0xA0, 0x84, 0x07, 0x14, 0xB5, 0x90, 0x2C, 0xA3,
+        0xB2, 0x73, 0x4C, 0x54, 0x92, 0x74, 0x36, 0x51,
+        0x38, 0xB0, 0xBD, 0x5A, 0xFC, 0x60, 0x62, 0x96,
+        0x6C, 0x42, 0xF7, 0x10, 0x7C, 0x28, 0x27, 0x8C,
+        0x13, 0x95, 0x9C, 0xC7, 0x24, 0x46, 0x3B, 0x70,
+        0xCA, 0xE3, 0x85, 0xCB, 0x11, 0xD0, 0x93, 0xB8,
+        0xA6, 0x83, 0x20, 0xFF, 0x9F, 0x77, 0xC3, 0xCC,
+        0x03, 0x6F, 0x08, 0xBF, 0x40, 0xE7, 0x2B, 0xE2,
+        0x79, 0x0C, 0xAA, 0x82, 0x41, 0x3A, 0xEA, 0xB9,
+        0xE4, 0x9A, 0xA4, 0x97, 0x7E, 0xDA, 0x7A, 0x17,
+        0x66, 0x94, 0xA1, 0x1D, 0x3D, 0xF0, 0xDE, 0xB3,
+        0x0B, 0x72, 0xA7, 0x1C, 0xEF, 0xD1, 0x53, 0x3E,
+        0x8F, 0x33, 0x26, 0x5F, 0xEC, 0x76, 0x2A, 0x49,
+        0x81, 0x88, 0xEE, 0x21, 0xC4, 0x1A, 0xEB, 0xD9,
+        0xC5, 0x39, 0x99, 0xCD, 0xAD, 0x31, 0x8B, 0x01,
+        0x18, 0x23, 0xDD, 0x1F, 0x4E, 0x2D, 0xF9, 0x48,
+        0x4F, 0xF2, 0x65, 0x8E, 0x78, 0x5C, 0x58, 0x19,
+        0x8D, 0xE5, 0x98, 0x57, 0x67, 0x7F, 0x05, 0x64,
+        0xAF, 0x63, 0xB6, 0xFE, 0xF5, 0xB7, 0x3C, 0xA5,
+        0xCE, 0xE9, 0x68, 0x44, 0xE0, 0x4D, 0x43, 0x69,
+        0x29, 0x2E, 0xAC, 0x15, 0x59, 0xA8, 0x0A, 0x9E,
+        0x6E, 0x47, 0xDF, 0x34, 0x35, 0x6A, 0xCF, 0xDC,
+        0x22, 0xC9, 0xC0, 0x9B, 0x89, 0xD4, 0xED, 0xAB,
+        0x12, 0xA2, 0x0D, 0x52, 0xBB, 0x02, 0x2F, 0xA9,
+        0xD7, 0x61, 0x1E, 0xB4, 0x50, 0x04, 0xF6, 0xC2,
+        0x16, 0x25, 0x86, 0x56, 0x55, 0x09, 0xBE, 0x91
+    );
+
+    /**
+     * M-Table
+     *
+     * @var array
+     * @access private
+     */
+    var $m0 = array(
+        0xBCBC3275, 0xECEC21F3, 0x202043C6, 0xB3B3C9F4, 0xDADA03DB, 0x02028B7B, 0xE2E22BFB, 0x9E9EFAC8,
+        0xC9C9EC4A, 0xD4D409D3, 0x18186BE6, 0x1E1E9F6B, 0x98980E45, 0xB2B2387D, 0xA6A6D2E8, 0x2626B74B,
+        0x3C3C57D6, 0x93938A32, 0x8282EED8, 0x525298FD, 0x7B7BD437, 0xBBBB3771, 0x5B5B97F1, 0x474783E1,
+        0x24243C30, 0x5151E20F, 0xBABAC6F8, 0x4A4AF31B, 0xBFBF4887, 0x0D0D70FA, 0xB0B0B306, 0x7575DE3F,
+        0xD2D2FD5E, 0x7D7D20BA, 0x666631AE, 0x3A3AA35B, 0x59591C8A, 0x00000000, 0xCDCD93BC, 0x1A1AE09D,
+        0xAEAE2C6D, 0x7F7FABC1, 0x2B2BC7B1, 0xBEBEB90E, 0xE0E0A080, 0x8A8A105D, 0x3B3B52D2, 0x6464BAD5,
+        0xD8D888A0, 0xE7E7A584, 0x5F5FE807, 0x1B1B1114, 0x2C2CC2B5, 0xFCFCB490, 0x3131272C, 0x808065A3,
+        0x73732AB2, 0x0C0C8173, 0x79795F4C, 0x6B6B4154, 0x4B4B0292, 0x53536974, 0x94948F36, 0x83831F51,
+        0x2A2A3638, 0xC4C49CB0, 0x2222C8BD, 0xD5D5F85A, 0xBDBDC3FC, 0x48487860, 0xFFFFCE62, 0x4C4C0796,
+        0x4141776C, 0xC7C7E642, 0xEBEB24F7, 0x1C1C1410, 0x5D5D637C, 0x36362228, 0x6767C027, 0xE9E9AF8C,
+        0x4444F913, 0x1414EA95, 0xF5F5BB9C, 0xCFCF18C7, 0x3F3F2D24, 0xC0C0E346, 0x7272DB3B, 0x54546C70,
+        0x29294CCA, 0xF0F035E3, 0x0808FE85, 0xC6C617CB, 0xF3F34F11, 0x8C8CE4D0, 0xA4A45993, 0xCACA96B8,
+        0x68683BA6, 0xB8B84D83, 0x38382820, 0xE5E52EFF, 0xADAD569F, 0x0B0B8477, 0xC8C81DC3, 0x9999FFCC,
+        0x5858ED03, 0x19199A6F, 0x0E0E0A08, 0x95957EBF, 0x70705040, 0xF7F730E7, 0x6E6ECF2B, 0x1F1F6EE2,
+        0xB5B53D79, 0x09090F0C, 0x616134AA, 0x57571682, 0x9F9F0B41, 0x9D9D803A, 0x111164EA, 0x2525CDB9,
+        0xAFAFDDE4, 0x4545089A, 0xDFDF8DA4, 0xA3A35C97, 0xEAEAD57E, 0x353558DA, 0xEDEDD07A, 0x4343FC17,
+        0xF8F8CB66, 0xFBFBB194, 0x3737D3A1, 0xFAFA401D, 0xC2C2683D, 0xB4B4CCF0, 0x32325DDE, 0x9C9C71B3,
+        0x5656E70B, 0xE3E3DA72, 0x878760A7, 0x15151B1C, 0xF9F93AEF, 0x6363BFD1, 0x3434A953, 0x9A9A853E,
+        0xB1B1428F, 0x7C7CD133, 0x88889B26, 0x3D3DA65F, 0xA1A1D7EC, 0xE4E4DF76, 0x8181942A, 0x91910149,
+        0x0F0FFB81, 0xEEEEAA88, 0x161661EE, 0xD7D77321, 0x9797F5C4, 0xA5A5A81A, 0xFEFE3FEB, 0x6D6DB5D9,
+        0x7878AEC5, 0xC5C56D39, 0x1D1DE599, 0x7676A4CD, 0x3E3EDCAD, 0xCBCB6731, 0xB6B6478B, 0xEFEF5B01,
+        0x12121E18, 0x6060C523, 0x6A6AB0DD, 0x4D4DF61F, 0xCECEE94E, 0xDEDE7C2D, 0x55559DF9, 0x7E7E5A48,
+        0x2121B24F, 0x03037AF2, 0xA0A02665, 0x5E5E198E, 0x5A5A6678, 0x65654B5C, 0x62624E58, 0xFDFD4519,
+        0x0606F48D, 0x404086E5, 0xF2F2BE98, 0x3333AC57, 0x17179067, 0x05058E7F, 0xE8E85E05, 0x4F4F7D64,
+        0x89896AAF, 0x10109563, 0x74742FB6, 0x0A0A75FE, 0x5C5C92F5, 0x9B9B74B7, 0x2D2D333C, 0x3030D6A5,
+        0x2E2E49CE, 0x494989E9, 0x46467268, 0x77775544, 0xA8A8D8E0, 0x9696044D, 0x2828BD43, 0xA9A92969,
+        0xD9D97929, 0x8686912E, 0xD1D187AC, 0xF4F44A15, 0x8D8D1559, 0xD6D682A8, 0xB9B9BC0A, 0x42420D9E,
+        0xF6F6C16E, 0x2F2FB847, 0xDDDD06DF, 0x23233934, 0xCCCC6235, 0xF1F1C46A, 0xC1C112CF, 0x8585EBDC,
+        0x8F8F9E22, 0x7171A1C9, 0x9090F0C0, 0xAAAA539B, 0x0101F189, 0x8B8BE1D4, 0x4E4E8CED, 0x8E8E6FAB,
+        0xABABA212, 0x6F6F3EA2, 0xE6E6540D, 0xDBDBF252, 0x92927BBB, 0xB7B7B602, 0x6969CA2F, 0x3939D9A9,
+        0xD3D30CD7, 0xA7A72361, 0xA2A2AD1E, 0xC3C399B4, 0x6C6C4450, 0x07070504, 0x04047FF6, 0x272746C2,
+        0xACACA716, 0xD0D07625, 0x50501386, 0xDCDCF756, 0x84841A55, 0xE1E15109, 0x7A7A25BE, 0x1313EF91
+    );
+
+    /**
+     * M-Table
+     *
+     * @var array
+     * @access private
+     */
+    var $m1 = array(
+        0xA9D93939, 0x67901717, 0xB3719C9C, 0xE8D2A6A6, 0x04050707, 0xFD985252, 0xA3658080, 0x76DFE4E4,
+        0x9A084545, 0x92024B4B, 0x80A0E0E0, 0x78665A5A, 0xE4DDAFAF, 0xDDB06A6A, 0xD1BF6363, 0x38362A2A,
+        0x0D54E6E6, 0xC6432020, 0x3562CCCC, 0x98BEF2F2, 0x181E1212, 0xF724EBEB, 0xECD7A1A1, 0x6C774141,
+        0x43BD2828, 0x7532BCBC, 0x37D47B7B, 0x269B8888, 0xFA700D0D, 0x13F94444, 0x94B1FBFB, 0x485A7E7E,
+        0xF27A0303, 0xD0E48C8C, 0x8B47B6B6, 0x303C2424, 0x84A5E7E7, 0x54416B6B, 0xDF06DDDD, 0x23C56060,
+        0x1945FDFD, 0x5BA33A3A, 0x3D68C2C2, 0x59158D8D, 0xF321ECEC, 0xAE316666, 0xA23E6F6F, 0x82165757,
+        0x63951010, 0x015BEFEF, 0x834DB8B8, 0x2E918686, 0xD9B56D6D, 0x511F8383, 0x9B53AAAA, 0x7C635D5D,
+        0xA63B6868, 0xEB3FFEFE, 0xA5D63030, 0xBE257A7A, 0x16A7ACAC, 0x0C0F0909, 0xE335F0F0, 0x6123A7A7,
+        0xC0F09090, 0x8CAFE9E9, 0x3A809D9D, 0xF5925C5C, 0x73810C0C, 0x2C273131, 0x2576D0D0, 0x0BE75656,
+        0xBB7B9292, 0x4EE9CECE, 0x89F10101, 0x6B9F1E1E, 0x53A93434, 0x6AC4F1F1, 0xB499C3C3, 0xF1975B5B,
+        0xE1834747, 0xE66B1818, 0xBDC82222, 0x450E9898, 0xE26E1F1F, 0xF4C9B3B3, 0xB62F7474, 0x66CBF8F8,
+        0xCCFF9999, 0x95EA1414, 0x03ED5858, 0x56F7DCDC, 0xD4E18B8B, 0x1C1B1515, 0x1EADA2A2, 0xD70CD3D3,
+        0xFB2BE2E2, 0xC31DC8C8, 0x8E195E5E, 0xB5C22C2C, 0xE9894949, 0xCF12C1C1, 0xBF7E9595, 0xBA207D7D,
+        0xEA641111, 0x77840B0B, 0x396DC5C5, 0xAF6A8989, 0x33D17C7C, 0xC9A17171, 0x62CEFFFF, 0x7137BBBB,
+        0x81FB0F0F, 0x793DB5B5, 0x0951E1E1, 0xADDC3E3E, 0x242D3F3F, 0xCDA47676, 0xF99D5555, 0xD8EE8282,
+        0xE5864040, 0xC5AE7878, 0xB9CD2525, 0x4D049696, 0x44557777, 0x080A0E0E, 0x86135050, 0xE730F7F7,
+        0xA1D33737, 0x1D40FAFA, 0xAA346161, 0xED8C4E4E, 0x06B3B0B0, 0x706C5454, 0xB22A7373, 0xD2523B3B,
+        0x410B9F9F, 0x7B8B0202, 0xA088D8D8, 0x114FF3F3, 0x3167CBCB, 0xC2462727, 0x27C06767, 0x90B4FCFC,
+        0x20283838, 0xF67F0404, 0x60784848, 0xFF2EE5E5, 0x96074C4C, 0x5C4B6565, 0xB1C72B2B, 0xAB6F8E8E,
+        0x9E0D4242, 0x9CBBF5F5, 0x52F2DBDB, 0x1BF34A4A, 0x5FA63D3D, 0x9359A4A4, 0x0ABCB9B9, 0xEF3AF9F9,
+        0x91EF1313, 0x85FE0808, 0x49019191, 0xEE611616, 0x2D7CDEDE, 0x4FB22121, 0x8F42B1B1, 0x3BDB7272,
+        0x47B82F2F, 0x8748BFBF, 0x6D2CAEAE, 0x46E3C0C0, 0xD6573C3C, 0x3E859A9A, 0x6929A9A9, 0x647D4F4F,
+        0x2A948181, 0xCE492E2E, 0xCB17C6C6, 0x2FCA6969, 0xFCC3BDBD, 0x975CA3A3, 0x055EE8E8, 0x7AD0EDED,
+        0xAC87D1D1, 0x7F8E0505, 0xD5BA6464, 0x1AA8A5A5, 0x4BB72626, 0x0EB9BEBE, 0xA7608787, 0x5AF8D5D5,
+        0x28223636, 0x14111B1B, 0x3FDE7575, 0x2979D9D9, 0x88AAEEEE, 0x3C332D2D, 0x4C5F7979, 0x02B6B7B7,
+        0xB896CACA, 0xDA583535, 0xB09CC4C4, 0x17FC4343, 0x551A8484, 0x1FF64D4D, 0x8A1C5959, 0x7D38B2B2,
+        0x57AC3333, 0xC718CFCF, 0x8DF40606, 0x74695353, 0xB7749B9B, 0xC4F59797, 0x9F56ADAD, 0x72DAE3E3,
+        0x7ED5EAEA, 0x154AF4F4, 0x229E8F8F, 0x12A2ABAB, 0x584E6262, 0x07E85F5F, 0x99E51D1D, 0x34392323,
+        0x6EC1F6F6, 0x50446C6C, 0xDE5D3232, 0x68724646, 0x6526A0A0, 0xBC93CDCD, 0xDB03DADA, 0xF8C6BABA,
+        0xC8FA9E9E, 0xA882D6D6, 0x2BCF6E6E, 0x40507070, 0xDCEB8585, 0xFE750A0A, 0x328A9393, 0xA48DDFDF,
+        0xCA4C2929, 0x10141C1C, 0x2173D7D7, 0xF0CCB4B4, 0xD309D4D4, 0x5D108A8A, 0x0FE25151, 0x00000000,
+        0x6F9A1919, 0x9DE01A1A, 0x368F9494, 0x42E6C7C7, 0x4AECC9C9, 0x5EFDD2D2, 0xC1AB7F7F, 0xE0D8A8A8
+    );
+
+    /**
+     * M-Table
+     *
+     * @var array
+     * @access private
+     */
+    var $m2 = array(
+        0xBC75BC32, 0xECF3EC21, 0x20C62043, 0xB3F4B3C9, 0xDADBDA03, 0x027B028B, 0xE2FBE22B, 0x9EC89EFA,
+        0xC94AC9EC, 0xD4D3D409, 0x18E6186B, 0x1E6B1E9F, 0x9845980E, 0xB27DB238, 0xA6E8A6D2, 0x264B26B7,
+        0x3CD63C57, 0x9332938A, 0x82D882EE, 0x52FD5298, 0x7B377BD4, 0xBB71BB37, 0x5BF15B97, 0x47E14783,
+        0x2430243C, 0x510F51E2, 0xBAF8BAC6, 0x4A1B4AF3, 0xBF87BF48, 0x0DFA0D70, 0xB006B0B3, 0x753F75DE,
+        0xD25ED2FD, 0x7DBA7D20, 0x66AE6631, 0x3A5B3AA3, 0x598A591C, 0x00000000, 0xCDBCCD93, 0x1A9D1AE0,
+        0xAE6DAE2C, 0x7FC17FAB, 0x2BB12BC7, 0xBE0EBEB9, 0xE080E0A0, 0x8A5D8A10, 0x3BD23B52, 0x64D564BA,
+        0xD8A0D888, 0xE784E7A5, 0x5F075FE8, 0x1B141B11, 0x2CB52CC2, 0xFC90FCB4, 0x312C3127, 0x80A38065,
+        0x73B2732A, 0x0C730C81, 0x794C795F, 0x6B546B41, 0x4B924B02, 0x53745369, 0x9436948F, 0x8351831F,
+        0x2A382A36, 0xC4B0C49C, 0x22BD22C8, 0xD55AD5F8, 0xBDFCBDC3, 0x48604878, 0xFF62FFCE, 0x4C964C07,
+        0x416C4177, 0xC742C7E6, 0xEBF7EB24, 0x1C101C14, 0x5D7C5D63, 0x36283622, 0x672767C0, 0xE98CE9AF,
+        0x441344F9, 0x149514EA, 0xF59CF5BB, 0xCFC7CF18, 0x3F243F2D, 0xC046C0E3, 0x723B72DB, 0x5470546C,
+        0x29CA294C, 0xF0E3F035, 0x088508FE, 0xC6CBC617, 0xF311F34F, 0x8CD08CE4, 0xA493A459, 0xCAB8CA96,
+        0x68A6683B, 0xB883B84D, 0x38203828, 0xE5FFE52E, 0xAD9FAD56, 0x0B770B84, 0xC8C3C81D, 0x99CC99FF,
+        0x580358ED, 0x196F199A, 0x0E080E0A, 0x95BF957E, 0x70407050, 0xF7E7F730, 0x6E2B6ECF, 0x1FE21F6E,
+        0xB579B53D, 0x090C090F, 0x61AA6134, 0x57825716, 0x9F419F0B, 0x9D3A9D80, 0x11EA1164, 0x25B925CD,
+        0xAFE4AFDD, 0x459A4508, 0xDFA4DF8D, 0xA397A35C, 0xEA7EEAD5, 0x35DA3558, 0xED7AEDD0, 0x431743FC,
+        0xF866F8CB, 0xFB94FBB1, 0x37A137D3, 0xFA1DFA40, 0xC23DC268, 0xB4F0B4CC, 0x32DE325D, 0x9CB39C71,
+        0x560B56E7, 0xE372E3DA, 0x87A78760, 0x151C151B, 0xF9EFF93A, 0x63D163BF, 0x345334A9, 0x9A3E9A85,
+        0xB18FB142, 0x7C337CD1, 0x8826889B, 0x3D5F3DA6, 0xA1ECA1D7, 0xE476E4DF, 0x812A8194, 0x91499101,
+        0x0F810FFB, 0xEE88EEAA, 0x16EE1661, 0xD721D773, 0x97C497F5, 0xA51AA5A8, 0xFEEBFE3F, 0x6DD96DB5,
+        0x78C578AE, 0xC539C56D, 0x1D991DE5, 0x76CD76A4, 0x3EAD3EDC, 0xCB31CB67, 0xB68BB647, 0xEF01EF5B,
+        0x1218121E, 0x602360C5, 0x6ADD6AB0, 0x4D1F4DF6, 0xCE4ECEE9, 0xDE2DDE7C, 0x55F9559D, 0x7E487E5A,
+        0x214F21B2, 0x03F2037A, 0xA065A026, 0x5E8E5E19, 0x5A785A66, 0x655C654B, 0x6258624E, 0xFD19FD45,
+        0x068D06F4, 0x40E54086, 0xF298F2BE, 0x335733AC, 0x17671790, 0x057F058E, 0xE805E85E, 0x4F644F7D,
+        0x89AF896A, 0x10631095, 0x74B6742F, 0x0AFE0A75, 0x5CF55C92, 0x9BB79B74, 0x2D3C2D33, 0x30A530D6,
+        0x2ECE2E49, 0x49E94989, 0x46684672, 0x77447755, 0xA8E0A8D8, 0x964D9604, 0x284328BD, 0xA969A929,
+        0xD929D979, 0x862E8691, 0xD1ACD187, 0xF415F44A, 0x8D598D15, 0xD6A8D682, 0xB90AB9BC, 0x429E420D,
+        0xF66EF6C1, 0x2F472FB8, 0xDDDFDD06, 0x23342339, 0xCC35CC62, 0xF16AF1C4, 0xC1CFC112, 0x85DC85EB,
+        0x8F228F9E, 0x71C971A1, 0x90C090F0, 0xAA9BAA53, 0x018901F1, 0x8BD48BE1, 0x4EED4E8C, 0x8EAB8E6F,
+        0xAB12ABA2, 0x6FA26F3E, 0xE60DE654, 0xDB52DBF2, 0x92BB927B, 0xB702B7B6, 0x692F69CA, 0x39A939D9,
+        0xD3D7D30C, 0xA761A723, 0xA21EA2AD, 0xC3B4C399, 0x6C506C44, 0x07040705, 0x04F6047F, 0x27C22746,
+        0xAC16ACA7, 0xD025D076, 0x50865013, 0xDC56DCF7, 0x8455841A, 0xE109E151, 0x7ABE7A25, 0x139113EF
+    );
+
+    /**
+     * M-Table
+     *
+     * @var array
+     * @access private
+     */
+    var $m3 = array(
+        0xD939A9D9, 0x90176790, 0x719CB371, 0xD2A6E8D2, 0x05070405, 0x9852FD98, 0x6580A365, 0xDFE476DF,
+        0x08459A08, 0x024B9202, 0xA0E080A0, 0x665A7866, 0xDDAFE4DD, 0xB06ADDB0, 0xBF63D1BF, 0x362A3836,
+        0x54E60D54, 0x4320C643, 0x62CC3562, 0xBEF298BE, 0x1E12181E, 0x24EBF724, 0xD7A1ECD7, 0x77416C77,
+        0xBD2843BD, 0x32BC7532, 0xD47B37D4, 0x9B88269B, 0x700DFA70, 0xF94413F9, 0xB1FB94B1, 0x5A7E485A,
+        0x7A03F27A, 0xE48CD0E4, 0x47B68B47, 0x3C24303C, 0xA5E784A5, 0x416B5441, 0x06DDDF06, 0xC56023C5,
+        0x45FD1945, 0xA33A5BA3, 0x68C23D68, 0x158D5915, 0x21ECF321, 0x3166AE31, 0x3E6FA23E, 0x16578216,
+        0x95106395, 0x5BEF015B, 0x4DB8834D, 0x91862E91, 0xB56DD9B5, 0x1F83511F, 0x53AA9B53, 0x635D7C63,
+        0x3B68A63B, 0x3FFEEB3F, 0xD630A5D6, 0x257ABE25, 0xA7AC16A7, 0x0F090C0F, 0x35F0E335, 0x23A76123,
+        0xF090C0F0, 0xAFE98CAF, 0x809D3A80, 0x925CF592, 0x810C7381, 0x27312C27, 0x76D02576, 0xE7560BE7,
+        0x7B92BB7B, 0xE9CE4EE9, 0xF10189F1, 0x9F1E6B9F, 0xA93453A9, 0xC4F16AC4, 0x99C3B499, 0x975BF197,
+        0x8347E183, 0x6B18E66B, 0xC822BDC8, 0x0E98450E, 0x6E1FE26E, 0xC9B3F4C9, 0x2F74B62F, 0xCBF866CB,
+        0xFF99CCFF, 0xEA1495EA, 0xED5803ED, 0xF7DC56F7, 0xE18BD4E1, 0x1B151C1B, 0xADA21EAD, 0x0CD3D70C,
+        0x2BE2FB2B, 0x1DC8C31D, 0x195E8E19, 0xC22CB5C2, 0x8949E989, 0x12C1CF12, 0x7E95BF7E, 0x207DBA20,
+        0x6411EA64, 0x840B7784, 0x6DC5396D, 0x6A89AF6A, 0xD17C33D1, 0xA171C9A1, 0xCEFF62CE, 0x37BB7137,
+        0xFB0F81FB, 0x3DB5793D, 0x51E10951, 0xDC3EADDC, 0x2D3F242D, 0xA476CDA4, 0x9D55F99D, 0xEE82D8EE,
+        0x8640E586, 0xAE78C5AE, 0xCD25B9CD, 0x04964D04, 0x55774455, 0x0A0E080A, 0x13508613, 0x30F7E730,
+        0xD337A1D3, 0x40FA1D40, 0x3461AA34, 0x8C4EED8C, 0xB3B006B3, 0x6C54706C, 0x2A73B22A, 0x523BD252,
+        0x0B9F410B, 0x8B027B8B, 0x88D8A088, 0x4FF3114F, 0x67CB3167, 0x4627C246, 0xC06727C0, 0xB4FC90B4,
+        0x28382028, 0x7F04F67F, 0x78486078, 0x2EE5FF2E, 0x074C9607, 0x4B655C4B, 0xC72BB1C7, 0x6F8EAB6F,
+        0x0D429E0D, 0xBBF59CBB, 0xF2DB52F2, 0xF34A1BF3, 0xA63D5FA6, 0x59A49359, 0xBCB90ABC, 0x3AF9EF3A,
+        0xEF1391EF, 0xFE0885FE, 0x01914901, 0x6116EE61, 0x7CDE2D7C, 0xB2214FB2, 0x42B18F42, 0xDB723BDB,
+        0xB82F47B8, 0x48BF8748, 0x2CAE6D2C, 0xE3C046E3, 0x573CD657, 0x859A3E85, 0x29A96929, 0x7D4F647D,
+        0x94812A94, 0x492ECE49, 0x17C6CB17, 0xCA692FCA, 0xC3BDFCC3, 0x5CA3975C, 0x5EE8055E, 0xD0ED7AD0,
+        0x87D1AC87, 0x8E057F8E, 0xBA64D5BA, 0xA8A51AA8, 0xB7264BB7, 0xB9BE0EB9, 0x6087A760, 0xF8D55AF8,
+        0x22362822, 0x111B1411, 0xDE753FDE, 0x79D92979, 0xAAEE88AA, 0x332D3C33, 0x5F794C5F, 0xB6B702B6,
+        0x96CAB896, 0x5835DA58, 0x9CC4B09C, 0xFC4317FC, 0x1A84551A, 0xF64D1FF6, 0x1C598A1C, 0x38B27D38,
+        0xAC3357AC, 0x18CFC718, 0xF4068DF4, 0x69537469, 0x749BB774, 0xF597C4F5, 0x56AD9F56, 0xDAE372DA,
+        0xD5EA7ED5, 0x4AF4154A, 0x9E8F229E, 0xA2AB12A2, 0x4E62584E, 0xE85F07E8, 0xE51D99E5, 0x39233439,
+        0xC1F66EC1, 0x446C5044, 0x5D32DE5D, 0x72466872, 0x26A06526, 0x93CDBC93, 0x03DADB03, 0xC6BAF8C6,
+        0xFA9EC8FA, 0x82D6A882, 0xCF6E2BCF, 0x50704050, 0xEB85DCEB, 0x750AFE75, 0x8A93328A, 0x8DDFA48D,
+        0x4C29CA4C, 0x141C1014, 0x73D72173, 0xCCB4F0CC, 0x09D4D309, 0x108A5D10, 0xE2510FE2, 0x00000000,
+        0x9A196F9A, 0xE01A9DE0, 0x8F94368F, 0xE6C742E6, 0xECC94AEC, 0xFDD25EFD, 0xAB7FC1AB, 0xD8A8E0D8
+    );
+
+    /**
+     * The Key Schedule Array
+     *
+     * @var array
+     * @access private
+     */
+    var $K = array();
+
+    /**
+     * The Key depended S-Table 0
+     *
+     * @var array
+     * @access private
+     */
+    var $S0 = array();
+
+    /**
+     * The Key depended S-Table 1
+     *
+     * @var array
+     * @access private
+     */
+    var $S1 = array();
+
+    /**
+     * The Key depended S-Table 2
+     *
+     * @var array
+     * @access private
+     */
+    var $S2 = array();
+
+    /**
+     * The Key depended S-Table 3
+     *
+     * @var array
+     * @access private
+     */
+    var $S3 = array();
+
+    /**
+     * Holds the last used key
+     *
+     * @var array
+     * @access private
+     */
+    var $kl;
+
+    /**
+     * The Key Length (in bytes)
+     *
+     * @see Crypt_Twofish::setKeyLength()
+     * @var int
+     * @access private
+     */
+    var $key_length = 16;
+
+    /**
+     * Sets the key length.
+     *
+     * Valid key lengths are 128, 192 or 256 bits
+     *
+     * @access public
+     * @param int $length
+     */
+    function setKeyLength($length)
+    {
+        switch (true) {
+            case $length <= 128:
+                $this->key_length = 16;
+                break;
+            case $length <= 192:
+                $this->key_length = 24;
+                break;
+            default:
+                $this->key_length = 32;
+        }
+
+        parent::setKeyLength($length);
+    }
+
+    /**
+     * Setup the key (expansion)
+     *
+     * @see \phpseclib\Crypt\Base::_setupKey()
+     * @access private
+     */
+    function _setupKey()
+    {
+        if (isset($this->kl['key']) && $this->key === $this->kl['key']) {
+            // already expanded
+            return;
+        }
+        $this->kl = array('key' => $this->key);
+
+        /* Key expanding and generating the key-depended s-boxes */
+        $le_longs = unpack('V*', $this->key);
+        $key = unpack('C*', $this->key);
+        $m0 = $this->m0;
+        $m1 = $this->m1;
+        $m2 = $this->m2;
+        $m3 = $this->m3;
+        $q0 = $this->q0;
+        $q1 = $this->q1;
+
+        $K = $S0 = $S1 = $S2 = $S3 = array();
+
+        switch (strlen($this->key)) {
+            case 16:
+                list($s7, $s6, $s5, $s4) = $this->_mdsrem($le_longs[1], $le_longs[2]);
+                list($s3, $s2, $s1, $s0) = $this->_mdsrem($le_longs[3], $le_longs[4]);
+                for ($i = 0, $j = 1; $i < 40; $i+= 2, $j+= 2) {
+                    $A = $m0[$q0[$q0[$i] ^ $key[ 9]] ^ $key[1]] ^
+                         $m1[$q0[$q1[$i] ^ $key[10]] ^ $key[2]] ^
+                         $m2[$q1[$q0[$i] ^ $key[11]] ^ $key[3]] ^
+                         $m3[$q1[$q1[$i] ^ $key[12]] ^ $key[4]];
+                    $B = $m0[$q0[$q0[$j] ^ $key[13]] ^ $key[5]] ^
+                         $m1[$q0[$q1[$j] ^ $key[14]] ^ $key[6]] ^
+                         $m2[$q1[$q0[$j] ^ $key[15]] ^ $key[7]] ^
+                         $m3[$q1[$q1[$j] ^ $key[16]] ^ $key[8]];
+                    $B = ($B << 8) | ($B >> 24 & 0xff);
+                    $A = $this->safe_intval($A + $B);
+                    $K[] = $A;
+                    $A = $this->safe_intval($A + $B);
+                    $K[] = ($A << 9 | $A >> 23 & 0x1ff);
+                }
+                for ($i = 0; $i < 256; ++$i) {
+                    $S0[$i] = $m0[$q0[$q0[$i] ^ $s4] ^ $s0];
+                    $S1[$i] = $m1[$q0[$q1[$i] ^ $s5] ^ $s1];
+                    $S2[$i] = $m2[$q1[$q0[$i] ^ $s6] ^ $s2];
+                    $S3[$i] = $m3[$q1[$q1[$i] ^ $s7] ^ $s3];
+                }
+                break;
+            case 24:
+                list($sb, $sa, $s9, $s8) = $this->_mdsrem($le_longs[1], $le_longs[2]);
+                list($s7, $s6, $s5, $s4) = $this->_mdsrem($le_longs[3], $le_longs[4]);
+                list($s3, $s2, $s1, $s0) = $this->_mdsrem($le_longs[5], $le_longs[6]);
+                for ($i = 0, $j = 1; $i < 40; $i+= 2, $j+= 2) {
+                    $A = $m0[$q0[$q0[$q1[$i] ^ $key[17]] ^ $key[ 9]] ^ $key[1]] ^
+                         $m1[$q0[$q1[$q1[$i] ^ $key[18]] ^ $key[10]] ^ $key[2]] ^
+                         $m2[$q1[$q0[$q0[$i] ^ $key[19]] ^ $key[11]] ^ $key[3]] ^
+                         $m3[$q1[$q1[$q0[$i] ^ $key[20]] ^ $key[12]] ^ $key[4]];
+                    $B = $m0[$q0[$q0[$q1[$j] ^ $key[21]] ^ $key[13]] ^ $key[5]] ^
+                         $m1[$q0[$q1[$q1[$j] ^ $key[22]] ^ $key[14]] ^ $key[6]] ^
+                         $m2[$q1[$q0[$q0[$j] ^ $key[23]] ^ $key[15]] ^ $key[7]] ^
+                         $m3[$q1[$q1[$q0[$j] ^ $key[24]] ^ $key[16]] ^ $key[8]];
+                    $B = ($B << 8) | ($B >> 24 & 0xff);
+                    $A = $this->safe_intval($A + $B);
+                    $K[] = $A;
+                    $A = $this->safe_intval($A + $B);
+                    $K[] = ($A << 9 | $A >> 23 & 0x1ff);
+                }
+                for ($i = 0; $i < 256; ++$i) {
+                    $S0[$i] = $m0[$q0[$q0[$q1[$i] ^ $s8] ^ $s4] ^ $s0];
+                    $S1[$i] = $m1[$q0[$q1[$q1[$i] ^ $s9] ^ $s5] ^ $s1];
+                    $S2[$i] = $m2[$q1[$q0[$q0[$i] ^ $sa] ^ $s6] ^ $s2];
+                    $S3[$i] = $m3[$q1[$q1[$q0[$i] ^ $sb] ^ $s7] ^ $s3];
+                }
+                break;
+            default: // 32
+                list($sf, $se, $sd, $sc) = $this->_mdsrem($le_longs[1], $le_longs[2]);
+                list($sb, $sa, $s9, $s8) = $this->_mdsrem($le_longs[3], $le_longs[4]);
+                list($s7, $s6, $s5, $s4) = $this->_mdsrem($le_longs[5], $le_longs[6]);
+                list($s3, $s2, $s1, $s0) = $this->_mdsrem($le_longs[7], $le_longs[8]);
+                for ($i = 0, $j = 1; $i < 40; $i+= 2, $j+= 2) {
+                    $A = $m0[$q0[$q0[$q1[$q1[$i] ^ $key[25]] ^ $key[17]] ^ $key[ 9]] ^ $key[1]] ^
+                         $m1[$q0[$q1[$q1[$q0[$i] ^ $key[26]] ^ $key[18]] ^ $key[10]] ^ $key[2]] ^
+                         $m2[$q1[$q0[$q0[$q0[$i] ^ $key[27]] ^ $key[19]] ^ $key[11]] ^ $key[3]] ^
+                         $m3[$q1[$q1[$q0[$q1[$i] ^ $key[28]] ^ $key[20]] ^ $key[12]] ^ $key[4]];
+                    $B = $m0[$q0[$q0[$q1[$q1[$j] ^ $key[29]] ^ $key[21]] ^ $key[13]] ^ $key[5]] ^
+                         $m1[$q0[$q1[$q1[$q0[$j] ^ $key[30]] ^ $key[22]] ^ $key[14]] ^ $key[6]] ^
+                         $m2[$q1[$q0[$q0[$q0[$j] ^ $key[31]] ^ $key[23]] ^ $key[15]] ^ $key[7]] ^
+                         $m3[$q1[$q1[$q0[$q1[$j] ^ $key[32]] ^ $key[24]] ^ $key[16]] ^ $key[8]];
+                    $B = ($B << 8) | ($B >> 24 & 0xff);
+                    $A = $this->safe_intval($A + $B);
+                    $K[] = $A;
+                    $A = $this->safe_intval($A + $B);
+                    $K[] = ($A << 9 | $A >> 23 & 0x1ff);
+                }
+                for ($i = 0; $i < 256; ++$i) {
+                    $S0[$i] = $m0[$q0[$q0[$q1[$q1[$i] ^ $sc] ^ $s8] ^ $s4] ^ $s0];
+                    $S1[$i] = $m1[$q0[$q1[$q1[$q0[$i] ^ $sd] ^ $s9] ^ $s5] ^ $s1];
+                    $S2[$i] = $m2[$q1[$q0[$q0[$q0[$i] ^ $se] ^ $sa] ^ $s6] ^ $s2];
+                    $S3[$i] = $m3[$q1[$q1[$q0[$q1[$i] ^ $sf] ^ $sb] ^ $s7] ^ $s3];
+                }
+        }
+
+        $this->K  = $K;
+        $this->S0 = $S0;
+        $this->S1 = $S1;
+        $this->S2 = $S2;
+        $this->S3 = $S3;
+    }
+
+    /**
+     * _mdsrem function using by the twofish cipher algorithm
+     *
+     * @access private
+     * @param string $A
+     * @param string $B
+     * @return array
+     */
+    function _mdsrem($A, $B)
+    {
+        // No gain by unrolling this loop.
+        for ($i = 0; $i < 8; ++$i) {
+            // Get most significant coefficient.
+            $t = 0xff & ($B >> 24);
+
+            // Shift the others up.
+            $B = ($B << 8) | (0xff & ($A >> 24));
+            $A<<= 8;
+
+            $u = $t << 1;
+
+            // Subtract the modular polynomial on overflow.
+            if ($t & 0x80) {
+                $u^= 0x14d;
+            }
+
+            // Remove t * (a * x^2 + 1).
+            $B ^= $t ^ ($u << 16);
+
+            // Form u = a*t + t/a = t*(a + 1/a).
+            $u^= 0x7fffffff & ($t >> 1);
+
+            // Add the modular polynomial on underflow.
+            if ($t & 0x01) {
+                $u^= 0xa6 ;
+            }
+
+            // Remove t * (a + 1/a) * (x^3 + x).
+            $B^= ($u << 24) | ($u << 8);
+        }
+
+        return array(
+            0xff & $B >> 24,
+            0xff & $B >> 16,
+            0xff & $B >>  8,
+            0xff & $B);
+    }
+
+    /**
+     * Encrypts a block
+     *
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    function _encryptBlock($in)
+    {
+        $S0 = $this->S0;
+        $S1 = $this->S1;
+        $S2 = $this->S2;
+        $S3 = $this->S3;
+        $K  = $this->K;
+
+        $in = unpack("V4", $in);
+        $R0 = $K[0] ^ $in[1];
+        $R1 = $K[1] ^ $in[2];
+        $R2 = $K[2] ^ $in[3];
+        $R3 = $K[3] ^ $in[4];
+
+        $ki = 7;
+        while ($ki < 39) {
+            $t0 = $S0[ $R0        & 0xff] ^
+                  $S1[($R0 >>  8) & 0xff] ^
+                  $S2[($R0 >> 16) & 0xff] ^
+                  $S3[($R0 >> 24) & 0xff];
+            $t1 = $S0[($R1 >> 24) & 0xff] ^
+                  $S1[ $R1        & 0xff] ^
+                  $S2[($R1 >>  8) & 0xff] ^
+                  $S3[($R1 >> 16) & 0xff];
+            $R2^= $this->safe_intval($t0 + $t1 + $K[++$ki]);
+            $R2 = ($R2 >> 1 & 0x7fffffff) | ($R2 << 31);
+            $R3 = ((($R3 >> 31) & 1) | ($R3 << 1)) ^ $this->safe_intval($t0 + ($t1 << 1) + $K[++$ki]);
+
+            $t0 = $S0[ $R2        & 0xff] ^
+                  $S1[($R2 >>  8) & 0xff] ^
+                  $S2[($R2 >> 16) & 0xff] ^
+                  $S3[($R2 >> 24) & 0xff];
+            $t1 = $S0[($R3 >> 24) & 0xff] ^
+                  $S1[ $R3        & 0xff] ^
+                  $S2[($R3 >>  8) & 0xff] ^
+                  $S3[($R3 >> 16) & 0xff];
+            $R0^= $this->safe_intval($t0 + $t1 + $K[++$ki]);
+            $R0 = ($R0 >> 1 & 0x7fffffff) | ($R0 << 31);
+            $R1 = ((($R1 >> 31) & 1) | ($R1 << 1)) ^ $this->safe_intval($t0 + ($t1 << 1) + $K[++$ki]);
+        }
+
+        // @codingStandardsIgnoreStart
+        return pack("V4", $K[4] ^ $R2,
+                          $K[5] ^ $R3,
+                          $K[6] ^ $R0,
+                          $K[7] ^ $R1);
+        // @codingStandardsIgnoreEnd
+    }
+
+    /**
+     * Decrypts a block
+     *
+     * @access private
+     * @param string $in
+     * @return string
+     */
+    function _decryptBlock($in)
+    {
+        $S0 = $this->S0;
+        $S1 = $this->S1;
+        $S2 = $this->S2;
+        $S3 = $this->S3;
+        $K  = $this->K;
+
+        $in = unpack("V4", $in);
+        $R0 = $K[4] ^ $in[1];
+        $R1 = $K[5] ^ $in[2];
+        $R2 = $K[6] ^ $in[3];
+        $R3 = $K[7] ^ $in[4];
+
+        $ki = 40;
+        while ($ki > 8) {
+            $t0 = $S0[$R0       & 0xff] ^
+                  $S1[$R0 >>  8 & 0xff] ^
+                  $S2[$R0 >> 16 & 0xff] ^
+                  $S3[$R0 >> 24 & 0xff];
+            $t1 = $S0[$R1 >> 24 & 0xff] ^
+                  $S1[$R1       & 0xff] ^
+                  $S2[$R1 >>  8 & 0xff] ^
+                  $S3[$R1 >> 16 & 0xff];
+            $R3^= $this->safe_intval($t0 + ($t1 << 1) + $K[--$ki]);
+            $R3 = $R3 >> 1 & 0x7fffffff | $R3 << 31;
+            $R2 = ($R2 >> 31 & 0x1 | $R2 << 1) ^ $this->safe_intval($t0 + $t1 + $K[--$ki]);
+
+            $t0 = $S0[$R2       & 0xff] ^
+                  $S1[$R2 >>  8 & 0xff] ^
+                  $S2[$R2 >> 16 & 0xff] ^
+                  $S3[$R2 >> 24 & 0xff];
+            $t1 = $S0[$R3 >> 24 & 0xff] ^
+                  $S1[$R3       & 0xff] ^
+                  $S2[$R3 >>  8 & 0xff] ^
+                  $S3[$R3 >> 16 & 0xff];
+            $R1^= $this->safe_intval($t0 + ($t1 << 1) + $K[--$ki]);
+            $R1 = $R1 >> 1 & 0x7fffffff | $R1 << 31;
+            $R0 = ($R0 >> 31 & 0x1 | $R0 << 1) ^ $this->safe_intval($t0 + $t1 + $K[--$ki]);
+        }
+
+        // @codingStandardsIgnoreStart
+        return pack("V4", $K[0] ^ $R2,
+                          $K[1] ^ $R3,
+                          $K[2] ^ $R0,
+                          $K[3] ^ $R1);
+        // @codingStandardsIgnoreEnd
+    }
+
+    /**
+     * Setup the performance-optimized function for de/encrypt()
+     *
+     * @see \phpseclib\Crypt\Base::_setupInlineCrypt()
+     * @access private
+     */
+    function _setupInlineCrypt()
+    {
+        $lambda_functions =& self::_getLambdaFunctions();
+
+        // Max. 10 Ultra-Hi-optimized inline-crypt functions. After that, we'll (still) create very fast code, but not the ultimate fast one.
+        // (Currently, for Crypt_Twofish, one generated $lambda_function cost on php5.5@32bit ~140kb unfreeable mem and ~240kb on php5.5@64bit)
+        $gen_hi_opt_code = (bool)(count($lambda_functions) < 10);
+
+        // Generation of a unique hash for our generated code
+        $code_hash = "Crypt_Twofish, {$this->mode}";
+        if ($gen_hi_opt_code) {
+            $code_hash = str_pad($code_hash, 32) . $this->_hashInlineCryptFunction($this->key);
+        }
+
+        $safeint = $this->safe_intval_inline();
+
+        if (!isset($lambda_functions[$code_hash])) {
+            switch (true) {
+                case $gen_hi_opt_code:
+                    $K = $this->K;
+                    $init_crypt = '
+                        static $S0, $S1, $S2, $S3;
+                        if (!$S0) {
+                            for ($i = 0; $i < 256; ++$i) {
+                                $S0[] = (int)$self->S0[$i];
+                                $S1[] = (int)$self->S1[$i];
+                                $S2[] = (int)$self->S2[$i];
+                                $S3[] = (int)$self->S3[$i];
+                            }
+                        }
+                    ';
+                    break;
+                default:
+                    $K   = array();
+                    for ($i = 0; $i < 40; ++$i) {
+                        $K[] = '$K_' . $i;
+                    }
+                    $init_crypt = '
+                        $S0 = $self->S0;
+                        $S1 = $self->S1;
+                        $S2 = $self->S2;
+                        $S3 = $self->S3;
+                        list(' . implode(',', $K) . ') = $self->K;
+                    ';
+            }
+
+            // Generating encrypt code:
+            $encrypt_block = '
+                $in = unpack("V4", $in);
+                $R0 = '.$K[0].' ^ $in[1];
+                $R1 = '.$K[1].' ^ $in[2];
+                $R2 = '.$K[2].' ^ $in[3];
+                $R3 = '.$K[3].' ^ $in[4];
+            ';
+            for ($ki = 7, $i = 0; $i < 8; ++$i) {
+                $encrypt_block.= '
+                    $t0 = $S0[ $R0        & 0xff] ^
+                          $S1[($R0 >>  8) & 0xff] ^
+                          $S2[($R0 >> 16) & 0xff] ^
+                          $S3[($R0 >> 24) & 0xff];
+                    $t1 = $S0[($R1 >> 24) & 0xff] ^
+                          $S1[ $R1        & 0xff] ^
+                          $S2[($R1 >>  8) & 0xff] ^
+                          $S3[($R1 >> 16) & 0xff];
+                    $R2^= ' . sprintf($safeint, '$t0 + $t1 + ' . $K[++$ki]) . ';
+                    $R2 = ($R2 >> 1 & 0x7fffffff) | ($R2 << 31);
+                    $R3 = ((($R3 >> 31) & 1) | ($R3 << 1)) ^ ' . sprintf($safeint, '($t0 + ($t1 << 1) + ' . $K[++$ki] . ')') . ';
+
+                    $t0 = $S0[ $R2        & 0xff] ^
+                          $S1[($R2 >>  8) & 0xff] ^
+                          $S2[($R2 >> 16) & 0xff] ^
+                          $S3[($R2 >> 24) & 0xff];
+                    $t1 = $S0[($R3 >> 24) & 0xff] ^
+                          $S1[ $R3        & 0xff] ^
+                          $S2[($R3 >>  8) & 0xff] ^
+                          $S3[($R3 >> 16) & 0xff];
+                    $R0^= ' . sprintf($safeint, '($t0 + $t1 + ' . $K[++$ki] . ')') . ';
+                    $R0 = ($R0 >> 1 & 0x7fffffff) | ($R0 << 31);
+                    $R1 = ((($R1 >> 31) & 1) | ($R1 << 1)) ^ ' . sprintf($safeint, '($t0 + ($t1 << 1) + ' . $K[++$ki] . ')') . ';
+                ';
+            }
+            $encrypt_block.= '
+                $in = pack("V4", ' . $K[4] . ' ^ $R2,
+                                 ' . $K[5] . ' ^ $R3,
+                                 ' . $K[6] . ' ^ $R0,
+                                 ' . $K[7] . ' ^ $R1);
+            ';
+
+            // Generating decrypt code:
+            $decrypt_block = '
+                $in = unpack("V4", $in);
+                $R0 = '.$K[4].' ^ $in[1];
+                $R1 = '.$K[5].' ^ $in[2];
+                $R2 = '.$K[6].' ^ $in[3];
+                $R3 = '.$K[7].' ^ $in[4];
+            ';
+            for ($ki = 40, $i = 0; $i < 8; ++$i) {
+                $decrypt_block.= '
+                    $t0 = $S0[$R0       & 0xff] ^
+                          $S1[$R0 >>  8 & 0xff] ^
+                          $S2[$R0 >> 16 & 0xff] ^
+                          $S3[$R0 >> 24 & 0xff];
+                    $t1 = $S0[$R1 >> 24 & 0xff] ^
+                          $S1[$R1       & 0xff] ^
+                          $S2[$R1 >>  8 & 0xff] ^
+                          $S3[$R1 >> 16 & 0xff];
+                    $R3^= ' . sprintf($safeint, '$t0 + ($t1 << 1) + ' . $K[--$ki]) . ';
+                    $R3 = $R3 >> 1 & 0x7fffffff | $R3 << 31;
+                    $R2 = ($R2 >> 31 & 0x1 | $R2 << 1) ^ ' . sprintf($safeint, '($t0 + $t1 + '.$K[--$ki] . ')') . ';
+
+                    $t0 = $S0[$R2       & 0xff] ^
+                          $S1[$R2 >>  8 & 0xff] ^
+                          $S2[$R2 >> 16 & 0xff] ^
+                          $S3[$R2 >> 24 & 0xff];
+                    $t1 = $S0[$R3 >> 24 & 0xff] ^
+                          $S1[$R3       & 0xff] ^
+                          $S2[$R3 >>  8 & 0xff] ^
+                          $S3[$R3 >> 16 & 0xff];
+                    $R1^= ' . sprintf($safeint, '$t0 + ($t1 << 1) + ' . $K[--$ki]) . ';
+                    $R1 = $R1 >> 1 & 0x7fffffff | $R1 << 31;
+                    $R0 = ($R0 >> 31 & 0x1 | $R0 << 1) ^ ' . sprintf($safeint, '($t0 + $t1 + '.$K[--$ki] . ')') . ';
+                ';
+            }
+            $decrypt_block.= '
+                $in = pack("V4", ' . $K[0] . ' ^ $R2,
+                                 ' . $K[1] . ' ^ $R3,
+                                 ' . $K[2] . ' ^ $R0,
+                                 ' . $K[3] . ' ^ $R1);
+            ';
+
+            $lambda_functions[$code_hash] = $this->_createInlineCryptFunction(
+                array(
+                   'init_crypt'    => $init_crypt,
+                   'init_encrypt'  => '',
+                   'init_decrypt'  => '',
+                   'encrypt_block' => $encrypt_block,
+                   'decrypt_block' => $decrypt_block
+                )
+            );
+        }
+        $this->inline_crypt = $lambda_functions[$code_hash];
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Math/BigInteger.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Math/BigInteger.php
new file mode 100644
index 0000000..2aa39a5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/Math/BigInteger.php
@@ -0,0 +1,3763 @@
+<?php
+
+/**
+ * Pure-PHP arbitrary precision integer arithmetic library.
+ *
+ * Supports base-2, base-10, base-16, and base-256 numbers.  Uses the GMP or BCMath extensions, if available,
+ * and an internal implementation, otherwise.
+ *
+ * PHP version 5
+ *
+ * {@internal (all DocBlock comments regarding implementation - such as the one that follows - refer to the
+ * {@link self::MODE_INTERNAL self::MODE_INTERNAL} mode)
+ *
+ * BigInteger uses base-2**26 to perform operations such as multiplication and division and
+ * base-2**52 (ie. two base 2**26 digits) to perform addition and subtraction.  Because the largest possible
+ * value when multiplying two base-2**26 numbers together is a base-2**52 number, double precision floating
+ * point numbers - numbers that should be supported on most hardware and whose significand is 53 bits - are
+ * used.  As a consequence, bitwise operators such as >> and << cannot be used, nor can the modulo operator %,
+ * which only supports integers.  Although this fact will slow this library down, the fact that such a high
+ * base is being used should more than compensate.
+ *
+ * Numbers are stored in {@link http://en.wikipedia.org/wiki/Endianness little endian} format.  ie.
+ * (new \phpseclib\Math\BigInteger(pow(2, 26)))->value = array(0, 1)
+ *
+ * Useful resources are as follows:
+ *
+ *  - {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf Handbook of Applied Cryptography (HAC)}
+ *  - {@link http://math.libtomcrypt.com/files/tommath.pdf Multi-Precision Math (MPM)}
+ *  - Java's BigInteger classes.  See /j2se/src/share/classes/java/math in jdk-1_5_0-src-jrl.zip
+ *
+ * Here's an example of how to use this library:
+ * <code>
+ * <?php
+ *    $a = new \phpseclib\Math\BigInteger(2);
+ *    $b = new \phpseclib\Math\BigInteger(3);
+ *
+ *    $c = $a->add($b);
+ *
+ *    echo $c->toString(); // outputs 5
+ * ?>
+ * </code>
+ *
+ * @category  Math
+ * @package   BigInteger
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2006 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://pear.php.net/package/Math_BigInteger
+ */
+
+namespace phpseclib\Math;
+
+use phpseclib\Crypt\Random;
+
+/**
+ * Pure-PHP arbitrary precision integer arithmetic library. Supports base-2, base-10, base-16, and base-256
+ * numbers.
+ *
+ * @package BigInteger
+ * @author  Jim Wigginton <terrafrost@php.net>
+ * @access  public
+ */
+class BigInteger
+{
+    /**#@+
+     * Reduction constants
+     *
+     * @access private
+     * @see BigInteger::_reduce()
+     */
+    /**
+     * @see BigInteger::_montgomery()
+     * @see BigInteger::_prepMontgomery()
+     */
+    const MONTGOMERY = 0;
+    /**
+     * @see BigInteger::_barrett()
+     */
+    const BARRETT = 1;
+    /**
+     * @see BigInteger::_mod2()
+     */
+    const POWEROF2 = 2;
+    /**
+     * @see BigInteger::_remainder()
+     */
+    const CLASSIC = 3;
+    /**
+     * @see BigInteger::__clone()
+     */
+    const NONE = 4;
+    /**#@-*/
+
+    /**#@+
+     * Array constants
+     *
+     * Rather than create a thousands and thousands of new BigInteger objects in repeated function calls to add() and
+     * multiply() or whatever, we'll just work directly on arrays, taking them in as parameters and returning them.
+     *
+     * @access private
+    */
+    /**
+     * $result[self::VALUE] contains the value.
+     */
+    const VALUE = 0;
+    /**
+     * $result[self::SIGN] contains the sign.
+     */
+    const SIGN = 1;
+    /**#@-*/
+
+    /**#@+
+     * @access private
+     * @see BigInteger::_montgomery()
+     * @see BigInteger::_barrett()
+    */
+    /**
+     * Cache constants
+     *
+     * $cache[self::VARIABLE] tells us whether or not the cached data is still valid.
+     */
+    const VARIABLE = 0;
+    /**
+     * $cache[self::DATA] contains the cached data.
+     */
+    const DATA = 1;
+    /**#@-*/
+
+    /**#@+
+     * Mode constants.
+     *
+     * @access private
+     * @see BigInteger::__construct()
+    */
+    /**
+     * To use the pure-PHP implementation
+     */
+    const MODE_INTERNAL = 1;
+    /**
+     * To use the BCMath library
+     *
+     * (if enabled; otherwise, the internal implementation will be used)
+     */
+    const MODE_BCMATH = 2;
+    /**
+     * To use the GMP library
+     *
+     * (if present; otherwise, either the BCMath or the internal implementation will be used)
+     */
+    const MODE_GMP = 3;
+    /**#@-*/
+
+    /**
+     * Karatsuba Cutoff
+     *
+     * At what point do we switch between Karatsuba multiplication and schoolbook long multiplication?
+     *
+     * @access private
+     */
+    const KARATSUBA_CUTOFF = 25;
+
+    /**#@+
+     * Static properties used by the pure-PHP implementation.
+     *
+     * @see __construct()
+     */
+    protected static $base;
+    protected static $baseFull;
+    protected static $maxDigit;
+    protected static $msb;
+
+    /**
+     * $max10 in greatest $max10Len satisfying
+     * $max10 = 10**$max10Len <= 2**$base.
+     */
+    protected static $max10;
+
+    /**
+     * $max10Len in greatest $max10Len satisfying
+     * $max10 = 10**$max10Len <= 2**$base.
+     */
+    protected static $max10Len;
+    protected static $maxDigit2;
+    /**#@-*/
+
+    /**
+     * Holds the BigInteger's value.
+     *
+     * @var array
+     * @access private
+     */
+    var $value;
+
+    /**
+     * Holds the BigInteger's magnitude.
+     *
+     * @var bool
+     * @access private
+     */
+    var $is_negative = false;
+
+    /**
+     * Precision
+     *
+     * @see self::setPrecision()
+     * @access private
+     */
+    var $precision = -1;
+
+    /**
+     * Precision Bitmask
+     *
+     * @see self::setPrecision()
+     * @access private
+     */
+    var $bitmask = false;
+
+    /**
+     * Mode independent value used for serialization.
+     *
+     * If the bcmath or gmp extensions are installed $this->value will be a non-serializable resource, hence the need for
+     * a variable that'll be serializable regardless of whether or not extensions are being used.  Unlike $this->value,
+     * however, $this->hex is only calculated when $this->__sleep() is called.
+     *
+     * @see self::__sleep()
+     * @see self::__wakeup()
+     * @var string
+     * @access private
+     */
+    var $hex;
+
+    /**
+     * Converts base-2, base-10, base-16, and binary strings (base-256) to BigIntegers.
+     *
+     * If the second parameter - $base - is negative, then it will be assumed that the number's are encoded using
+     * two's compliment.  The sole exception to this is -10, which is treated the same as 10 is.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger('0x32', 16); // 50 in base-16
+     *
+     *    echo $a->toString(); // outputs 50
+     * ?>
+     * </code>
+     *
+     * @param $x base-10 number or base-$base number if $base set.
+     * @param int $base
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     */
+    function __construct($x = 0, $base = 10)
+    {
+        if (!defined('MATH_BIGINTEGER_MODE')) {
+            switch (true) {
+                case extension_loaded('gmp'):
+                    define('MATH_BIGINTEGER_MODE', self::MODE_GMP);
+                    break;
+                case extension_loaded('bcmath'):
+                    define('MATH_BIGINTEGER_MODE', self::MODE_BCMATH);
+                    break;
+                default:
+                    define('MATH_BIGINTEGER_MODE', self::MODE_INTERNAL);
+            }
+        }
+
+        if (extension_loaded('openssl') && !defined('MATH_BIGINTEGER_OPENSSL_DISABLE') && !defined('MATH_BIGINTEGER_OPENSSL_ENABLED')) {
+            // some versions of XAMPP have mismatched versions of OpenSSL which causes it not to work
+            ob_start();
+            @phpinfo();
+            $content = ob_get_contents();
+            ob_end_clean();
+
+            preg_match_all('#OpenSSL (Header|Library) Version(.*)#im', $content, $matches);
+
+            $versions = array();
+            if (!empty($matches[1])) {
+                for ($i = 0; $i < count($matches[1]); $i++) {
+                    $fullVersion = trim(str_replace('=>', '', strip_tags($matches[2][$i])));
+
+                    // Remove letter part in OpenSSL version
+                    if (!preg_match('/(\d+\.\d+\.\d+)/i', $fullVersion, $m)) {
+                        $versions[$matches[1][$i]] = $fullVersion;
+                    } else {
+                        $versions[$matches[1][$i]] = $m[0];
+                    }
+                }
+            }
+
+            // it doesn't appear that OpenSSL versions were reported upon until PHP 5.3+
+            switch (true) {
+                case !isset($versions['Header']):
+                case !isset($versions['Library']):
+                case $versions['Header'] == $versions['Library']:
+                case version_compare($versions['Header'], '1.0.0') >= 0 && version_compare($versions['Library'], '1.0.0') >= 0:
+                    define('MATH_BIGINTEGER_OPENSSL_ENABLED', true);
+                    break;
+                default:
+                    define('MATH_BIGINTEGER_OPENSSL_DISABLE', true);
+            }
+        }
+
+        if (!defined('PHP_INT_SIZE')) {
+            define('PHP_INT_SIZE', 4);
+        }
+
+        if (empty(self::$base) && MATH_BIGINTEGER_MODE == self::MODE_INTERNAL) {
+            switch (PHP_INT_SIZE) {
+                case 8: // use 64-bit integers if int size is 8 bytes
+                    self::$base      = 31;
+                    self::$baseFull  = 0x80000000;
+                    self::$maxDigit  = 0x7FFFFFFF;
+                    self::$msb       = 0x40000000;
+                    self::$max10     = 1000000000;
+                    self::$max10Len  = 9;
+                    self::$maxDigit2 = pow(2, 62);
+                    break;
+                //case 4: // use 64-bit floats if int size is 4 bytes
+                default:
+                    self::$base      = 26;
+                    self::$baseFull  = 0x4000000;
+                    self::$maxDigit  = 0x3FFFFFF;
+                    self::$msb       = 0x2000000;
+                    self::$max10     = 10000000;
+                    self::$max10Len  = 7;
+                    self::$maxDigit2 = pow(2, 52); // pow() prevents truncation
+            }
+        }
+
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                switch (true) {
+                    case is_resource($x) && get_resource_type($x) == 'GMP integer':
+                    // PHP 5.6 switched GMP from using resources to objects
+                    case $x instanceof \GMP:
+                        $this->value = $x;
+                        return;
+                }
+                $this->value = gmp_init(0);
+                break;
+            case self::MODE_BCMATH:
+                $this->value = '0';
+                break;
+            default:
+                $this->value = array();
+        }
+
+        // '0' counts as empty() but when the base is 256 '0' is equal to ord('0') or 48
+        // '0' is the only value like this per http://php.net/empty
+        if (empty($x) && (abs($base) != 256 || $x !== '0')) {
+            return;
+        }
+
+        switch ($base) {
+            case -256:
+                if (ord($x[0]) & 0x80) {
+                    $x = ~$x;
+                    $this->is_negative = true;
+                }
+            case 256:
+                switch (MATH_BIGINTEGER_MODE) {
+                    case self::MODE_GMP:
+                        $this->value = function_exists('gmp_import') ?
+                            gmp_import($x) :
+                            gmp_init('0x' . bin2hex($x));
+                        if ($this->is_negative) {
+                            $this->value = gmp_neg($this->value);
+                        }
+                        break;
+                    case self::MODE_BCMATH:
+                        // round $len to the nearest 4 (thanks, DavidMJ!)
+                        $len = (strlen($x) + 3) & 0xFFFFFFFC;
+
+                        $x = str_pad($x, $len, chr(0), STR_PAD_LEFT);
+
+                        for ($i = 0; $i < $len; $i+= 4) {
+                            $this->value = bcmul($this->value, '4294967296', 0); // 4294967296 == 2**32
+                            $this->value = bcadd($this->value, 0x1000000 * ord($x[$i]) + ((ord($x[$i + 1]) << 16) | (ord($x[$i + 2]) << 8) | ord($x[$i + 3])), 0);
+                        }
+
+                        if ($this->is_negative) {
+                            $this->value = '-' . $this->value;
+                        }
+
+                        break;
+                    // converts a base-2**8 (big endian / msb) number to base-2**26 (little endian / lsb)
+                    default:
+                        while (strlen($x)) {
+                            $this->value[] = $this->_bytes2int($this->_base256_rshift($x, self::$base));
+                        }
+                }
+
+                if ($this->is_negative) {
+                    if (MATH_BIGINTEGER_MODE != self::MODE_INTERNAL) {
+                        $this->is_negative = false;
+                    }
+                    $temp = $this->add(new static('-1'));
+                    $this->value = $temp->value;
+                }
+                break;
+            case 16:
+            case -16:
+                if ($base > 0 && $x[0] == '-') {
+                    $this->is_negative = true;
+                    $x = substr($x, 1);
+                }
+
+                $x = preg_replace('#^(?:0x)?([A-Fa-f0-9]*).*#', '$1', $x);
+
+                $is_negative = false;
+                if ($base < 0 && hexdec($x[0]) >= 8) {
+                    $this->is_negative = $is_negative = true;
+                    $x = bin2hex(~pack('H*', $x));
+                }
+
+                switch (MATH_BIGINTEGER_MODE) {
+                    case self::MODE_GMP:
+                        $temp = $this->is_negative ? '-0x' . $x : '0x' . $x;
+                        $this->value = gmp_init($temp);
+                        $this->is_negative = false;
+                        break;
+                    case self::MODE_BCMATH:
+                        $x = (strlen($x) & 1) ? '0' . $x : $x;
+                        $temp = new static(pack('H*', $x), 256);
+                        $this->value = $this->is_negative ? '-' . $temp->value : $temp->value;
+                        $this->is_negative = false;
+                        break;
+                    default:
+                        $x = (strlen($x) & 1) ? '0' . $x : $x;
+                        $temp = new static(pack('H*', $x), 256);
+                        $this->value = $temp->value;
+                }
+
+                if ($is_negative) {
+                    $temp = $this->add(new static('-1'));
+                    $this->value = $temp->value;
+                }
+                break;
+            case 10:
+            case -10:
+                // (?<!^)(?:-).*: find any -'s that aren't at the beginning and then any characters that follow that
+                // (?<=^|-)0*: find any 0's that are preceded by the start of the string or by a - (ie. octals)
+                // [^-0-9].*: find any non-numeric characters and then any characters that follow that
+                $x = preg_replace('#(?<!^)(?:-).*|(?<=^|-)0*|[^-0-9].*#', '', $x);
+
+                switch (MATH_BIGINTEGER_MODE) {
+                    case self::MODE_GMP:
+                        $this->value = gmp_init($x);
+                        break;
+                    case self::MODE_BCMATH:
+                        // explicitly casting $x to a string is necessary, here, since doing $x[0] on -1 yields different
+                        // results then doing it on '-1' does (modInverse does $x[0])
+                        $this->value = $x === '-' ? '0' : (string) $x;
+                        break;
+                    default:
+                        $temp = new static();
+
+                        $multiplier = new static();
+                        $multiplier->value = array(self::$max10);
+
+                        if ($x[0] == '-') {
+                            $this->is_negative = true;
+                            $x = substr($x, 1);
+                        }
+
+                        $x = str_pad($x, strlen($x) + ((self::$max10Len - 1) * strlen($x)) % self::$max10Len, 0, STR_PAD_LEFT);
+                        while (strlen($x)) {
+                            $temp = $temp->multiply($multiplier);
+                            $temp = $temp->add(new static($this->_int2bytes(substr($x, 0, self::$max10Len)), 256));
+                            $x = substr($x, self::$max10Len);
+                        }
+
+                        $this->value = $temp->value;
+                }
+                break;
+            case 2: // base-2 support originally implemented by Lluis Pamies - thanks!
+            case -2:
+                if ($base > 0 && $x[0] == '-') {
+                    $this->is_negative = true;
+                    $x = substr($x, 1);
+                }
+
+                $x = preg_replace('#^([01]*).*#', '$1', $x);
+                $x = str_pad($x, strlen($x) + (3 * strlen($x)) % 4, 0, STR_PAD_LEFT);
+
+                $str = '0x';
+                while (strlen($x)) {
+                    $part = substr($x, 0, 4);
+                    $str.= dechex(bindec($part));
+                    $x = substr($x, 4);
+                }
+
+                if ($this->is_negative) {
+                    $str = '-' . $str;
+                }
+
+                $temp = new static($str, 8 * $base); // ie. either -16 or +16
+                $this->value = $temp->value;
+                $this->is_negative = $temp->is_negative;
+
+                break;
+            default:
+                // base not supported, so we'll let $this == 0
+        }
+    }
+
+    /**
+     * Converts a BigInteger to a byte string (eg. base-256).
+     *
+     * Negative numbers are saved as positive numbers, unless $twos_compliment is set to true, at which point, they're
+     * saved as two's compliment.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger('65');
+     *
+     *    echo $a->toBytes(); // outputs chr(65)
+     * ?>
+     * </code>
+     *
+     * @param bool $twos_compliment
+     * @return string
+     * @access public
+     * @internal Converts a base-2**26 number to base-2**8
+     */
+    function toBytes($twos_compliment = false)
+    {
+        if ($twos_compliment) {
+            $comparison = $this->compare(new static());
+            if ($comparison == 0) {
+                return $this->precision > 0 ? str_repeat(chr(0), ($this->precision + 1) >> 3) : '';
+            }
+
+            $temp = $comparison < 0 ? $this->add(new static(1)) : $this->copy();
+            $bytes = $temp->toBytes();
+
+            if (empty($bytes)) { // eg. if the number we're trying to convert is -1
+                $bytes = chr(0);
+            }
+
+            if (ord($bytes[0]) & 0x80) {
+                $bytes = chr(0) . $bytes;
+            }
+
+            return $comparison < 0 ? ~$bytes : $bytes;
+        }
+
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                if (gmp_cmp($this->value, gmp_init(0)) == 0) {
+                    return $this->precision > 0 ? str_repeat(chr(0), ($this->precision + 1) >> 3) : '';
+                }
+
+                if (function_exists('gmp_export')) {
+                    $temp = gmp_export($this->value);
+                } else {
+                    $temp = gmp_strval(gmp_abs($this->value), 16);
+                    $temp = (strlen($temp) & 1) ? '0' . $temp : $temp;
+                    $temp = pack('H*', $temp);
+                }
+
+                return $this->precision > 0 ?
+                    substr(str_pad($temp, $this->precision >> 3, chr(0), STR_PAD_LEFT), -($this->precision >> 3)) :
+                    ltrim($temp, chr(0));
+            case self::MODE_BCMATH:
+                if ($this->value === '0') {
+                    return $this->precision > 0 ? str_repeat(chr(0), ($this->precision + 1) >> 3) : '';
+                }
+
+                $value = '';
+                $current = $this->value;
+
+                if ($current[0] == '-') {
+                    $current = substr($current, 1);
+                }
+
+                while (bccomp($current, '0', 0) > 0) {
+                    $temp = bcmod($current, '16777216');
+                    $value = chr($temp >> 16) . chr($temp >> 8) . chr($temp) . $value;
+                    $current = bcdiv($current, '16777216', 0);
+                }
+
+                return $this->precision > 0 ?
+                    substr(str_pad($value, $this->precision >> 3, chr(0), STR_PAD_LEFT), -($this->precision >> 3)) :
+                    ltrim($value, chr(0));
+        }
+
+        if (!count($this->value)) {
+            return $this->precision > 0 ? str_repeat(chr(0), ($this->precision + 1) >> 3) : '';
+        }
+        $result = $this->_int2bytes($this->value[count($this->value) - 1]);
+
+        $temp = $this->copy();
+
+        for ($i = count($temp->value) - 2; $i >= 0; --$i) {
+            $temp->_base256_lshift($result, self::$base);
+            $result = $result | str_pad($temp->_int2bytes($temp->value[$i]), strlen($result), chr(0), STR_PAD_LEFT);
+        }
+
+        return $this->precision > 0 ?
+            str_pad(substr($result, -(($this->precision + 7) >> 3)), ($this->precision + 7) >> 3, chr(0), STR_PAD_LEFT) :
+            $result;
+    }
+
+    /**
+     * Converts a BigInteger to a hex string (eg. base-16)).
+     *
+     * Negative numbers are saved as positive numbers, unless $twos_compliment is set to true, at which point, they're
+     * saved as two's compliment.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger('65');
+     *
+     *    echo $a->toHex(); // outputs '41'
+     * ?>
+     * </code>
+     *
+     * @param bool $twos_compliment
+     * @return string
+     * @access public
+     * @internal Converts a base-2**26 number to base-2**8
+     */
+    function toHex($twos_compliment = false)
+    {
+        return bin2hex($this->toBytes($twos_compliment));
+    }
+
+    /**
+     * Converts a BigInteger to a bit string (eg. base-2).
+     *
+     * Negative numbers are saved as positive numbers, unless $twos_compliment is set to true, at which point, they're
+     * saved as two's compliment.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger('65');
+     *
+     *    echo $a->toBits(); // outputs '1000001'
+     * ?>
+     * </code>
+     *
+     * @param bool $twos_compliment
+     * @return string
+     * @access public
+     * @internal Converts a base-2**26 number to base-2**2
+     */
+    function toBits($twos_compliment = false)
+    {
+        $hex = $this->toHex($twos_compliment);
+        $bits = '';
+        for ($i = strlen($hex) - 8, $start = strlen($hex) & 7; $i >= $start; $i-=8) {
+            $bits = str_pad(decbin(hexdec(substr($hex, $i, 8))), 32, '0', STR_PAD_LEFT) . $bits;
+        }
+        if ($start) { // hexdec('') == 0
+            $bits = str_pad(decbin(hexdec(substr($hex, 0, $start))), 8, '0', STR_PAD_LEFT) . $bits;
+        }
+        $result = $this->precision > 0 ? substr($bits, -$this->precision) : ltrim($bits, '0');
+
+        if ($twos_compliment && $this->compare(new static()) > 0 && $this->precision <= 0) {
+            return '0' . $result;
+        }
+
+        return $result;
+    }
+
+    /**
+     * Converts a BigInteger to a base-10 number.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger('50');
+     *
+     *    echo $a->toString(); // outputs 50
+     * ?>
+     * </code>
+     *
+     * @return string
+     * @access public
+     * @internal Converts a base-2**26 number to base-10**7 (which is pretty much base-10)
+     */
+    function toString()
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                return gmp_strval($this->value);
+            case self::MODE_BCMATH:
+                if ($this->value === '0') {
+                    return '0';
+                }
+
+                return ltrim($this->value, '0');
+        }
+
+        if (!count($this->value)) {
+            return '0';
+        }
+
+        $temp = $this->copy();
+        $temp->is_negative = false;
+
+        $divisor = new static();
+        $divisor->value = array(self::$max10);
+        $result = '';
+        while (count($temp->value)) {
+            list($temp, $mod) = $temp->divide($divisor);
+            $result = str_pad(isset($mod->value[0]) ? $mod->value[0] : '', self::$max10Len, '0', STR_PAD_LEFT) . $result;
+        }
+        $result = ltrim($result, '0');
+        if (empty($result)) {
+            $result = '0';
+        }
+
+        if ($this->is_negative) {
+            $result = '-' . $result;
+        }
+
+        return $result;
+    }
+
+    /**
+     * Copy an object
+     *
+     * PHP5 passes objects by reference while PHP4 passes by value.  As such, we need a function to guarantee
+     * that all objects are passed by value, when appropriate.  More information can be found here:
+     *
+     * {@link http://php.net/language.oop5.basic#51624}
+     *
+     * @access public
+     * @see self::__clone()
+     * @return \phpseclib\Math\BigInteger
+     */
+    function copy()
+    {
+        $temp = new static();
+        $temp->value = $this->value;
+        $temp->is_negative = $this->is_negative;
+        $temp->precision = $this->precision;
+        $temp->bitmask = $this->bitmask;
+        return $temp;
+    }
+
+    /**
+     *  __toString() magic method
+     *
+     * Will be called, automatically, if you're supporting just PHP5.  If you're supporting PHP4, you'll need to call
+     * toString().
+     *
+     * @access public
+     * @internal Implemented per a suggestion by Techie-Michael - thanks!
+     */
+    function __toString()
+    {
+        return $this->toString();
+    }
+
+    /**
+     * __clone() magic method
+     *
+     * Although you can call BigInteger::__toString() directly in PHP5, you cannot call BigInteger::__clone() directly
+     * in PHP5.  You can in PHP4 since it's not a magic method, but in PHP5, you have to call it by using the PHP5
+     * only syntax of $y = clone $x.  As such, if you're trying to write an application that works on both PHP4 and
+     * PHP5, call BigInteger::copy(), instead.
+     *
+     * @access public
+     * @see self::copy()
+     * @return \phpseclib\Math\BigInteger
+     */
+    function __clone()
+    {
+        return $this->copy();
+    }
+
+    /**
+     *  __sleep() magic method
+     *
+     * Will be called, automatically, when serialize() is called on a BigInteger object.
+     *
+     * @see self::__wakeup()
+     * @access public
+     */
+    function __sleep()
+    {
+        $this->hex = $this->toHex(true);
+        $vars = array('hex');
+        if ($this->precision > 0) {
+            $vars[] = 'precision';
+        }
+        return $vars;
+    }
+
+    /**
+     *  __wakeup() magic method
+     *
+     * Will be called, automatically, when unserialize() is called on a BigInteger object.
+     *
+     * @see self::__sleep()
+     * @access public
+     */
+    function __wakeup()
+    {
+        $temp = new static($this->hex, -16);
+        $this->value = $temp->value;
+        $this->is_negative = $temp->is_negative;
+        if ($this->precision > 0) {
+            // recalculate $this->bitmask
+            $this->setPrecision($this->precision);
+        }
+    }
+
+    /**
+     *  __debugInfo() magic method
+     *
+     * Will be called, automatically, when print_r() or var_dump() are called
+     *
+     * @access public
+     */
+    function __debugInfo()
+    {
+        $opts = array();
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                $engine = 'gmp';
+                break;
+            case self::MODE_BCMATH:
+                $engine = 'bcmath';
+                break;
+            case self::MODE_INTERNAL:
+                $engine = 'internal';
+                $opts[] = PHP_INT_SIZE == 8 ? '64-bit' : '32-bit';
+        }
+        if (MATH_BIGINTEGER_MODE != self::MODE_GMP && defined('MATH_BIGINTEGER_OPENSSL_ENABLED')) {
+            $opts[] = 'OpenSSL';
+        }
+        if (!empty($opts)) {
+            $engine.= ' (' . implode($opts, ', ') . ')';
+        }
+        return array(
+            'value' => '0x' . $this->toHex(true),
+            'engine' => $engine
+        );
+    }
+
+    /**
+     * Adds two BigIntegers.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger('10');
+     *    $b = new \phpseclib\Math\BigInteger('20');
+     *
+     *    $c = $a->add($b);
+     *
+     *    echo $c->toString(); // outputs 30
+     * ?>
+     * </code>
+     *
+     * @param \phpseclib\Math\BigInteger $y
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     * @internal Performs base-2**52 addition
+     */
+    function add($y)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                $temp = new static();
+                $temp->value = gmp_add($this->value, $y->value);
+
+                return $this->_normalize($temp);
+            case self::MODE_BCMATH:
+                $temp = new static();
+                $temp->value = bcadd($this->value, $y->value, 0);
+
+                return $this->_normalize($temp);
+        }
+
+        $temp = $this->_add($this->value, $this->is_negative, $y->value, $y->is_negative);
+
+        $result = new static();
+        $result->value = $temp[self::VALUE];
+        $result->is_negative = $temp[self::SIGN];
+
+        return $this->_normalize($result);
+    }
+
+    /**
+     * Performs addition.
+     *
+     * @param array $x_value
+     * @param bool $x_negative
+     * @param array $y_value
+     * @param bool $y_negative
+     * @return array
+     * @access private
+     */
+    function _add($x_value, $x_negative, $y_value, $y_negative)
+    {
+        $x_size = count($x_value);
+        $y_size = count($y_value);
+
+        if ($x_size == 0) {
+            return array(
+                self::VALUE => $y_value,
+                self::SIGN => $y_negative
+            );
+        } elseif ($y_size == 0) {
+            return array(
+                self::VALUE => $x_value,
+                self::SIGN => $x_negative
+            );
+        }
+
+        // subtract, if appropriate
+        if ($x_negative != $y_negative) {
+            if ($x_value == $y_value) {
+                return array(
+                    self::VALUE => array(),
+                    self::SIGN => false
+                );
+            }
+
+            $temp = $this->_subtract($x_value, false, $y_value, false);
+            $temp[self::SIGN] = $this->_compare($x_value, false, $y_value, false) > 0 ?
+                                          $x_negative : $y_negative;
+
+            return $temp;
+        }
+
+        if ($x_size < $y_size) {
+            $size = $x_size;
+            $value = $y_value;
+        } else {
+            $size = $y_size;
+            $value = $x_value;
+        }
+
+        $value[count($value)] = 0; // just in case the carry adds an extra digit
+
+        $carry = 0;
+        for ($i = 0, $j = 1; $j < $size; $i+=2, $j+=2) {
+            $sum = $x_value[$j] * self::$baseFull + $x_value[$i] + $y_value[$j] * self::$baseFull + $y_value[$i] + $carry;
+            $carry = $sum >= self::$maxDigit2; // eg. floor($sum / 2**52); only possible values (in any base) are 0 and 1
+            $sum = $carry ? $sum - self::$maxDigit2 : $sum;
+
+            $temp = self::$base === 26 ? intval($sum / 0x4000000) : ($sum >> 31);
+
+            $value[$i] = (int) ($sum - self::$baseFull * $temp); // eg. a faster alternative to fmod($sum, 0x4000000)
+            $value[$j] = $temp;
+        }
+
+        if ($j == $size) { // ie. if $y_size is odd
+            $sum = $x_value[$i] + $y_value[$i] + $carry;
+            $carry = $sum >= self::$baseFull;
+            $value[$i] = $carry ? $sum - self::$baseFull : $sum;
+            ++$i; // ie. let $i = $j since we've just done $value[$i]
+        }
+
+        if ($carry) {
+            for (; $value[$i] == self::$maxDigit; ++$i) {
+                $value[$i] = 0;
+            }
+            ++$value[$i];
+        }
+
+        return array(
+            self::VALUE => $this->_trim($value),
+            self::SIGN => $x_negative
+        );
+    }
+
+    /**
+     * Subtracts two BigIntegers.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger('10');
+     *    $b = new \phpseclib\Math\BigInteger('20');
+     *
+     *    $c = $a->subtract($b);
+     *
+     *    echo $c->toString(); // outputs -10
+     * ?>
+     * </code>
+     *
+     * @param \phpseclib\Math\BigInteger $y
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     * @internal Performs base-2**52 subtraction
+     */
+    function subtract($y)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                $temp = new static();
+                $temp->value = gmp_sub($this->value, $y->value);
+
+                return $this->_normalize($temp);
+            case self::MODE_BCMATH:
+                $temp = new static();
+                $temp->value = bcsub($this->value, $y->value, 0);
+
+                return $this->_normalize($temp);
+        }
+
+        $temp = $this->_subtract($this->value, $this->is_negative, $y->value, $y->is_negative);
+
+        $result = new static();
+        $result->value = $temp[self::VALUE];
+        $result->is_negative = $temp[self::SIGN];
+
+        return $this->_normalize($result);
+    }
+
+    /**
+     * Performs subtraction.
+     *
+     * @param array $x_value
+     * @param bool $x_negative
+     * @param array $y_value
+     * @param bool $y_negative
+     * @return array
+     * @access private
+     */
+    function _subtract($x_value, $x_negative, $y_value, $y_negative)
+    {
+        $x_size = count($x_value);
+        $y_size = count($y_value);
+
+        if ($x_size == 0) {
+            return array(
+                self::VALUE => $y_value,
+                self::SIGN => !$y_negative
+            );
+        } elseif ($y_size == 0) {
+            return array(
+                self::VALUE => $x_value,
+                self::SIGN => $x_negative
+            );
+        }
+
+        // add, if appropriate (ie. -$x - +$y or +$x - -$y)
+        if ($x_negative != $y_negative) {
+            $temp = $this->_add($x_value, false, $y_value, false);
+            $temp[self::SIGN] = $x_negative;
+
+            return $temp;
+        }
+
+        $diff = $this->_compare($x_value, $x_negative, $y_value, $y_negative);
+
+        if (!$diff) {
+            return array(
+                self::VALUE => array(),
+                self::SIGN => false
+            );
+        }
+
+        // switch $x and $y around, if appropriate.
+        if ((!$x_negative && $diff < 0) || ($x_negative && $diff > 0)) {
+            $temp = $x_value;
+            $x_value = $y_value;
+            $y_value = $temp;
+
+            $x_negative = !$x_negative;
+
+            $x_size = count($x_value);
+            $y_size = count($y_value);
+        }
+
+        // at this point, $x_value should be at least as big as - if not bigger than - $y_value
+
+        $carry = 0;
+        for ($i = 0, $j = 1; $j < $y_size; $i+=2, $j+=2) {
+            $sum = $x_value[$j] * self::$baseFull + $x_value[$i] - $y_value[$j] * self::$baseFull - $y_value[$i] - $carry;
+            $carry = $sum < 0; // eg. floor($sum / 2**52); only possible values (in any base) are 0 and 1
+            $sum = $carry ? $sum + self::$maxDigit2 : $sum;
+
+            $temp = self::$base === 26 ? intval($sum / 0x4000000) : ($sum >> 31);
+
+            $x_value[$i] = (int) ($sum - self::$baseFull * $temp);
+            $x_value[$j] = $temp;
+        }
+
+        if ($j == $y_size) { // ie. if $y_size is odd
+            $sum = $x_value[$i] - $y_value[$i] - $carry;
+            $carry = $sum < 0;
+            $x_value[$i] = $carry ? $sum + self::$baseFull : $sum;
+            ++$i;
+        }
+
+        if ($carry) {
+            for (; !$x_value[$i]; ++$i) {
+                $x_value[$i] = self::$maxDigit;
+            }
+            --$x_value[$i];
+        }
+
+        return array(
+            self::VALUE => $this->_trim($x_value),
+            self::SIGN => $x_negative
+        );
+    }
+
+    /**
+     * Multiplies two BigIntegers
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger('10');
+     *    $b = new \phpseclib\Math\BigInteger('20');
+     *
+     *    $c = $a->multiply($b);
+     *
+     *    echo $c->toString(); // outputs 200
+     * ?>
+     * </code>
+     *
+     * @param \phpseclib\Math\BigInteger $x
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     */
+    function multiply($x)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                $temp = new static();
+                $temp->value = gmp_mul($this->value, $x->value);
+
+                return $this->_normalize($temp);
+            case self::MODE_BCMATH:
+                $temp = new static();
+                $temp->value = bcmul($this->value, $x->value, 0);
+
+                return $this->_normalize($temp);
+        }
+
+        $temp = $this->_multiply($this->value, $this->is_negative, $x->value, $x->is_negative);
+
+        $product = new static();
+        $product->value = $temp[self::VALUE];
+        $product->is_negative = $temp[self::SIGN];
+
+        return $this->_normalize($product);
+    }
+
+    /**
+     * Performs multiplication.
+     *
+     * @param array $x_value
+     * @param bool $x_negative
+     * @param array $y_value
+     * @param bool $y_negative
+     * @return array
+     * @access private
+     */
+    function _multiply($x_value, $x_negative, $y_value, $y_negative)
+    {
+        //if ( $x_value == $y_value ) {
+        //    return array(
+        //        self::VALUE => $this->_square($x_value),
+        //        self::SIGN => $x_sign != $y_value
+        //    );
+        //}
+
+        $x_length = count($x_value);
+        $y_length = count($y_value);
+
+        if (!$x_length || !$y_length) { // a 0 is being multiplied
+            return array(
+                self::VALUE => array(),
+                self::SIGN => false
+            );
+        }
+
+        return array(
+            self::VALUE => min($x_length, $y_length) < 2 * self::KARATSUBA_CUTOFF ?
+                $this->_trim($this->_regularMultiply($x_value, $y_value)) :
+                $this->_trim($this->_karatsuba($x_value, $y_value)),
+            self::SIGN => $x_negative != $y_negative
+        );
+    }
+
+    /**
+     * Performs long multiplication on two BigIntegers
+     *
+     * Modeled after 'multiply' in MutableBigInteger.java.
+     *
+     * @param array $x_value
+     * @param array $y_value
+     * @return array
+     * @access private
+     */
+    function _regularMultiply($x_value, $y_value)
+    {
+        $x_length = count($x_value);
+        $y_length = count($y_value);
+
+        if (!$x_length || !$y_length) { // a 0 is being multiplied
+            return array();
+        }
+
+        if ($x_length < $y_length) {
+            $temp = $x_value;
+            $x_value = $y_value;
+            $y_value = $temp;
+
+            $x_length = count($x_value);
+            $y_length = count($y_value);
+        }
+
+        $product_value = $this->_array_repeat(0, $x_length + $y_length);
+
+        // the following for loop could be removed if the for loop following it
+        // (the one with nested for loops) initially set $i to 0, but
+        // doing so would also make the result in one set of unnecessary adds,
+        // since on the outermost loops first pass, $product->value[$k] is going
+        // to always be 0
+
+        $carry = 0;
+
+        for ($j = 0; $j < $x_length; ++$j) { // ie. $i = 0
+            $temp = $x_value[$j] * $y_value[0] + $carry; // $product_value[$k] == 0
+            $carry = self::$base === 26 ? intval($temp / 0x4000000) : ($temp >> 31);
+            $product_value[$j] = (int) ($temp - self::$baseFull * $carry);
+        }
+
+        $product_value[$j] = $carry;
+
+        // the above for loop is what the previous comment was talking about.  the
+        // following for loop is the "one with nested for loops"
+        for ($i = 1; $i < $y_length; ++$i) {
+            $carry = 0;
+
+            for ($j = 0, $k = $i; $j < $x_length; ++$j, ++$k) {
+                $temp = $product_value[$k] + $x_value[$j] * $y_value[$i] + $carry;
+                $carry = self::$base === 26 ? intval($temp / 0x4000000) : ($temp >> 31);
+                $product_value[$k] = (int) ($temp - self::$baseFull * $carry);
+            }
+
+            $product_value[$k] = $carry;
+        }
+
+        return $product_value;
+    }
+
+    /**
+     * Performs Karatsuba multiplication on two BigIntegers
+     *
+     * See {@link http://en.wikipedia.org/wiki/Karatsuba_algorithm Karatsuba algorithm} and
+     * {@link http://math.libtomcrypt.com/files/tommath.pdf#page=120 MPM 5.2.3}.
+     *
+     * @param array $x_value
+     * @param array $y_value
+     * @return array
+     * @access private
+     */
+    function _karatsuba($x_value, $y_value)
+    {
+        $m = min(count($x_value) >> 1, count($y_value) >> 1);
+
+        if ($m < self::KARATSUBA_CUTOFF) {
+            return $this->_regularMultiply($x_value, $y_value);
+        }
+
+        $x1 = array_slice($x_value, $m);
+        $x0 = array_slice($x_value, 0, $m);
+        $y1 = array_slice($y_value, $m);
+        $y0 = array_slice($y_value, 0, $m);
+
+        $z2 = $this->_karatsuba($x1, $y1);
+        $z0 = $this->_karatsuba($x0, $y0);
+
+        $z1 = $this->_add($x1, false, $x0, false);
+        $temp = $this->_add($y1, false, $y0, false);
+        $z1 = $this->_karatsuba($z1[self::VALUE], $temp[self::VALUE]);
+        $temp = $this->_add($z2, false, $z0, false);
+        $z1 = $this->_subtract($z1, false, $temp[self::VALUE], false);
+
+        $z2 = array_merge(array_fill(0, 2 * $m, 0), $z2);
+        $z1[self::VALUE] = array_merge(array_fill(0, $m, 0), $z1[self::VALUE]);
+
+        $xy = $this->_add($z2, false, $z1[self::VALUE], $z1[self::SIGN]);
+        $xy = $this->_add($xy[self::VALUE], $xy[self::SIGN], $z0, false);
+
+        return $xy[self::VALUE];
+    }
+
+    /**
+     * Performs squaring
+     *
+     * @param array $x
+     * @return array
+     * @access private
+     */
+    function _square($x = false)
+    {
+        return count($x) < 2 * self::KARATSUBA_CUTOFF ?
+            $this->_trim($this->_baseSquare($x)) :
+            $this->_trim($this->_karatsubaSquare($x));
+    }
+
+    /**
+     * Performs traditional squaring on two BigIntegers
+     *
+     * Squaring can be done faster than multiplying a number by itself can be.  See
+     * {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf#page=7 HAC 14.2.4} /
+     * {@link http://math.libtomcrypt.com/files/tommath.pdf#page=141 MPM 5.3} for more information.
+     *
+     * @param array $value
+     * @return array
+     * @access private
+     */
+    function _baseSquare($value)
+    {
+        if (empty($value)) {
+            return array();
+        }
+        $square_value = $this->_array_repeat(0, 2 * count($value));
+
+        for ($i = 0, $max_index = count($value) - 1; $i <= $max_index; ++$i) {
+            $i2 = $i << 1;
+
+            $temp = $square_value[$i2] + $value[$i] * $value[$i];
+            $carry = self::$base === 26 ? intval($temp / 0x4000000) : ($temp >> 31);
+            $square_value[$i2] = (int) ($temp - self::$baseFull * $carry);
+
+            // note how we start from $i+1 instead of 0 as we do in multiplication.
+            for ($j = $i + 1, $k = $i2 + 1; $j <= $max_index; ++$j, ++$k) {
+                $temp = $square_value[$k] + 2 * $value[$j] * $value[$i] + $carry;
+                $carry = self::$base === 26 ? intval($temp / 0x4000000) : ($temp >> 31);
+                $square_value[$k] = (int) ($temp - self::$baseFull * $carry);
+            }
+
+            // the following line can yield values larger 2**15.  at this point, PHP should switch
+            // over to floats.
+            $square_value[$i + $max_index + 1] = $carry;
+        }
+
+        return $square_value;
+    }
+
+    /**
+     * Performs Karatsuba "squaring" on two BigIntegers
+     *
+     * See {@link http://en.wikipedia.org/wiki/Karatsuba_algorithm Karatsuba algorithm} and
+     * {@link http://math.libtomcrypt.com/files/tommath.pdf#page=151 MPM 5.3.4}.
+     *
+     * @param array $value
+     * @return array
+     * @access private
+     */
+    function _karatsubaSquare($value)
+    {
+        $m = count($value) >> 1;
+
+        if ($m < self::KARATSUBA_CUTOFF) {
+            return $this->_baseSquare($value);
+        }
+
+        $x1 = array_slice($value, $m);
+        $x0 = array_slice($value, 0, $m);
+
+        $z2 = $this->_karatsubaSquare($x1);
+        $z0 = $this->_karatsubaSquare($x0);
+
+        $z1 = $this->_add($x1, false, $x0, false);
+        $z1 = $this->_karatsubaSquare($z1[self::VALUE]);
+        $temp = $this->_add($z2, false, $z0, false);
+        $z1 = $this->_subtract($z1, false, $temp[self::VALUE], false);
+
+        $z2 = array_merge(array_fill(0, 2 * $m, 0), $z2);
+        $z1[self::VALUE] = array_merge(array_fill(0, $m, 0), $z1[self::VALUE]);
+
+        $xx = $this->_add($z2, false, $z1[self::VALUE], $z1[self::SIGN]);
+        $xx = $this->_add($xx[self::VALUE], $xx[self::SIGN], $z0, false);
+
+        return $xx[self::VALUE];
+    }
+
+    /**
+     * Divides two BigIntegers.
+     *
+     * Returns an array whose first element contains the quotient and whose second element contains the
+     * "common residue".  If the remainder would be positive, the "common residue" and the remainder are the
+     * same.  If the remainder would be negative, the "common residue" is equal to the sum of the remainder
+     * and the divisor (basically, the "common residue" is the first positive modulo).
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger('10');
+     *    $b = new \phpseclib\Math\BigInteger('20');
+     *
+     *    list($quotient, $remainder) = $a->divide($b);
+     *
+     *    echo $quotient->toString(); // outputs 0
+     *    echo "\r\n";
+     *    echo $remainder->toString(); // outputs 10
+     * ?>
+     * </code>
+     *
+     * @param \phpseclib\Math\BigInteger $y
+     * @return array
+     * @access public
+     * @internal This function is based off of {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf#page=9 HAC 14.20}.
+     */
+    function divide($y)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                $quotient = new static();
+                $remainder = new static();
+
+                list($quotient->value, $remainder->value) = gmp_div_qr($this->value, $y->value);
+
+                if (gmp_sign($remainder->value) < 0) {
+                    $remainder->value = gmp_add($remainder->value, gmp_abs($y->value));
+                }
+
+                return array($this->_normalize($quotient), $this->_normalize($remainder));
+            case self::MODE_BCMATH:
+                $quotient = new static();
+                $remainder = new static();
+
+                $quotient->value = bcdiv($this->value, $y->value, 0);
+                $remainder->value = bcmod($this->value, $y->value);
+
+                if ($remainder->value[0] == '-') {
+                    $remainder->value = bcadd($remainder->value, $y->value[0] == '-' ? substr($y->value, 1) : $y->value, 0);
+                }
+
+                return array($this->_normalize($quotient), $this->_normalize($remainder));
+        }
+
+        if (count($y->value) == 1) {
+            list($q, $r) = $this->_divide_digit($this->value, $y->value[0]);
+            $quotient = new static();
+            $remainder = new static();
+            $quotient->value = $q;
+            $remainder->value = array($r);
+            $quotient->is_negative = $this->is_negative != $y->is_negative;
+            return array($this->_normalize($quotient), $this->_normalize($remainder));
+        }
+
+        static $zero;
+        if (!isset($zero)) {
+            $zero = new static();
+        }
+
+        $x = $this->copy();
+        $y = $y->copy();
+
+        $x_sign = $x->is_negative;
+        $y_sign = $y->is_negative;
+
+        $x->is_negative = $y->is_negative = false;
+
+        $diff = $x->compare($y);
+
+        if (!$diff) {
+            $temp = new static();
+            $temp->value = array(1);
+            $temp->is_negative = $x_sign != $y_sign;
+            return array($this->_normalize($temp), $this->_normalize(new static()));
+        }
+
+        if ($diff < 0) {
+            // if $x is negative, "add" $y.
+            if ($x_sign) {
+                $x = $y->subtract($x);
+            }
+            return array($this->_normalize(new static()), $this->_normalize($x));
+        }
+
+        // normalize $x and $y as described in HAC 14.23 / 14.24
+        $msb = $y->value[count($y->value) - 1];
+        for ($shift = 0; !($msb & self::$msb); ++$shift) {
+            $msb <<= 1;
+        }
+        $x->_lshift($shift);
+        $y->_lshift($shift);
+        $y_value = &$y->value;
+
+        $x_max = count($x->value) - 1;
+        $y_max = count($y->value) - 1;
+
+        $quotient = new static();
+        $quotient_value = &$quotient->value;
+        $quotient_value = $this->_array_repeat(0, $x_max - $y_max + 1);
+
+        static $temp, $lhs, $rhs;
+        if (!isset($temp)) {
+            $temp = new static();
+            $lhs =  new static();
+            $rhs =  new static();
+        }
+        $temp_value = &$temp->value;
+        $rhs_value =  &$rhs->value;
+
+        // $temp = $y << ($x_max - $y_max-1) in base 2**26
+        $temp_value = array_merge($this->_array_repeat(0, $x_max - $y_max), $y_value);
+
+        while ($x->compare($temp) >= 0) {
+            // calculate the "common residue"
+            ++$quotient_value[$x_max - $y_max];
+            $x = $x->subtract($temp);
+            $x_max = count($x->value) - 1;
+        }
+
+        for ($i = $x_max; $i >= $y_max + 1; --$i) {
+            $x_value = &$x->value;
+            $x_window = array(
+                isset($x_value[$i]) ? $x_value[$i] : 0,
+                isset($x_value[$i - 1]) ? $x_value[$i - 1] : 0,
+                isset($x_value[$i - 2]) ? $x_value[$i - 2] : 0
+            );
+            $y_window = array(
+                $y_value[$y_max],
+                ($y_max > 0) ? $y_value[$y_max - 1] : 0
+            );
+
+            $q_index = $i - $y_max - 1;
+            if ($x_window[0] == $y_window[0]) {
+                $quotient_value[$q_index] = self::$maxDigit;
+            } else {
+                $quotient_value[$q_index] = $this->_safe_divide(
+                    $x_window[0] * self::$baseFull + $x_window[1],
+                    $y_window[0]
+                );
+            }
+
+            $temp_value = array($y_window[1], $y_window[0]);
+
+            $lhs->value = array($quotient_value[$q_index]);
+            $lhs = $lhs->multiply($temp);
+
+            $rhs_value = array($x_window[2], $x_window[1], $x_window[0]);
+
+            while ($lhs->compare($rhs) > 0) {
+                --$quotient_value[$q_index];
+
+                $lhs->value = array($quotient_value[$q_index]);
+                $lhs = $lhs->multiply($temp);
+            }
+
+            $adjust = $this->_array_repeat(0, $q_index);
+            $temp_value = array($quotient_value[$q_index]);
+            $temp = $temp->multiply($y);
+            $temp_value = &$temp->value;
+            $temp_value = array_merge($adjust, $temp_value);
+
+            $x = $x->subtract($temp);
+
+            if ($x->compare($zero) < 0) {
+                $temp_value = array_merge($adjust, $y_value);
+                $x = $x->add($temp);
+
+                --$quotient_value[$q_index];
+            }
+
+            $x_max = count($x_value) - 1;
+        }
+
+        // unnormalize the remainder
+        $x->_rshift($shift);
+
+        $quotient->is_negative = $x_sign != $y_sign;
+
+        // calculate the "common residue", if appropriate
+        if ($x_sign) {
+            $y->_rshift($shift);
+            $x = $y->subtract($x);
+        }
+
+        return array($this->_normalize($quotient), $this->_normalize($x));
+    }
+
+    /**
+     * Divides a BigInteger by a regular integer
+     *
+     * abc / x = a00 / x + b0 / x + c / x
+     *
+     * @param array $dividend
+     * @param array $divisor
+     * @return array
+     * @access private
+     */
+    function _divide_digit($dividend, $divisor)
+    {
+        $carry = 0;
+        $result = array();
+
+        for ($i = count($dividend) - 1; $i >= 0; --$i) {
+            $temp = self::$baseFull * $carry + $dividend[$i];
+            $result[$i] = $this->_safe_divide($temp, $divisor);
+            $carry = (int) ($temp - $divisor * $result[$i]);
+        }
+
+        return array($result, $carry);
+    }
+
+    /**
+     * Performs modular exponentiation.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger('10');
+     *    $b = new \phpseclib\Math\BigInteger('20');
+     *    $c = new \phpseclib\Math\BigInteger('30');
+     *
+     *    $c = $a->modPow($b, $c);
+     *
+     *    echo $c->toString(); // outputs 10
+     * ?>
+     * </code>
+     *
+     * @param \phpseclib\Math\BigInteger $e
+     * @param \phpseclib\Math\BigInteger $n
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     * @internal The most naive approach to modular exponentiation has very unreasonable requirements, and
+     *    and although the approach involving repeated squaring does vastly better, it, too, is impractical
+     *    for our purposes.  The reason being that division - by far the most complicated and time-consuming
+     *    of the basic operations (eg. +,-,*,/) - occurs multiple times within it.
+     *
+     *    Modular reductions resolve this issue.  Although an individual modular reduction takes more time
+     *    then an individual division, when performed in succession (with the same modulo), they're a lot faster.
+     *
+     *    The two most commonly used modular reductions are Barrett and Montgomery reduction.  Montgomery reduction,
+     *    although faster, only works when the gcd of the modulo and of the base being used is 1.  In RSA, when the
+     *    base is a power of two, the modulo - a product of two primes - is always going to have a gcd of 1 (because
+     *    the product of two odd numbers is odd), but what about when RSA isn't used?
+     *
+     *    In contrast, Barrett reduction has no such constraint.  As such, some bigint implementations perform a
+     *    Barrett reduction after every operation in the modpow function.  Others perform Barrett reductions when the
+     *    modulo is even and Montgomery reductions when the modulo is odd.  BigInteger.java's modPow method, however,
+     *    uses a trick involving the Chinese Remainder Theorem to factor the even modulo into two numbers - one odd and
+     *    the other, a power of two - and recombine them, later.  This is the method that this modPow function uses.
+     *    {@link http://islab.oregonstate.edu/papers/j34monex.pdf Montgomery Reduction with Even Modulus} elaborates.
+     */
+    function modPow($e, $n)
+    {
+        $n = $this->bitmask !== false && $this->bitmask->compare($n) < 0 ? $this->bitmask : $n->abs();
+
+        if ($e->compare(new static()) < 0) {
+            $e = $e->abs();
+
+            $temp = $this->modInverse($n);
+            if ($temp === false) {
+                return false;
+            }
+
+            return $this->_normalize($temp->modPow($e, $n));
+        }
+
+        if (MATH_BIGINTEGER_MODE == self::MODE_GMP) {
+            $temp = new static();
+            $temp->value = gmp_powm($this->value, $e->value, $n->value);
+
+            return $this->_normalize($temp);
+        }
+
+        if ($this->compare(new static()) < 0 || $this->compare($n) > 0) {
+            list(, $temp) = $this->divide($n);
+            return $temp->modPow($e, $n);
+        }
+
+        if (defined('MATH_BIGINTEGER_OPENSSL_ENABLED')) {
+            $components = array(
+                'modulus' => $n->toBytes(true),
+                'publicExponent' => $e->toBytes(true)
+            );
+
+            $components = array(
+                'modulus' => pack('Ca*a*', 2, $this->_encodeASN1Length(strlen($components['modulus'])), $components['modulus']),
+                'publicExponent' => pack('Ca*a*', 2, $this->_encodeASN1Length(strlen($components['publicExponent'])), $components['publicExponent'])
+            );
+
+            $RSAPublicKey = pack(
+                'Ca*a*a*',
+                48,
+                $this->_encodeASN1Length(strlen($components['modulus']) + strlen($components['publicExponent'])),
+                $components['modulus'],
+                $components['publicExponent']
+            );
+
+            $rsaOID = pack('H*', '300d06092a864886f70d0101010500'); // hex version of MA0GCSqGSIb3DQEBAQUA
+            $RSAPublicKey = chr(0) . $RSAPublicKey;
+            $RSAPublicKey = chr(3) . $this->_encodeASN1Length(strlen($RSAPublicKey)) . $RSAPublicKey;
+
+            $encapsulated = pack(
+                'Ca*a*',
+                48,
+                $this->_encodeASN1Length(strlen($rsaOID . $RSAPublicKey)),
+                $rsaOID . $RSAPublicKey
+            );
+
+            $RSAPublicKey = "-----BEGIN PUBLIC KEY-----\r\n" .
+                             chunk_split(base64_encode($encapsulated)) .
+                             '-----END PUBLIC KEY-----';
+
+            $plaintext = str_pad($this->toBytes(), strlen($n->toBytes(true)) - 1, "\0", STR_PAD_LEFT);
+
+            if (openssl_public_encrypt($plaintext, $result, $RSAPublicKey, OPENSSL_NO_PADDING)) {
+                return new static($result, 256);
+            }
+        }
+
+        if (MATH_BIGINTEGER_MODE == self::MODE_BCMATH) {
+            $temp = new static();
+            $temp->value = bcpowmod($this->value, $e->value, $n->value, 0);
+
+            return $this->_normalize($temp);
+        }
+
+        if (empty($e->value)) {
+            $temp = new static();
+            $temp->value = array(1);
+            return $this->_normalize($temp);
+        }
+
+        if ($e->value == array(1)) {
+            list(, $temp) = $this->divide($n);
+            return $this->_normalize($temp);
+        }
+
+        if ($e->value == array(2)) {
+            $temp = new static();
+            $temp->value = $this->_square($this->value);
+            list(, $temp) = $temp->divide($n);
+            return $this->_normalize($temp);
+        }
+
+        return $this->_normalize($this->_slidingWindow($e, $n, self::BARRETT));
+
+        // the following code, although not callable, can be run independently of the above code
+        // although the above code performed better in my benchmarks the following could might
+        // perform better under different circumstances. in lieu of deleting it it's just been
+        // made uncallable
+
+        // is the modulo odd?
+        if ($n->value[0] & 1) {
+            return $this->_normalize($this->_slidingWindow($e, $n, self::MONTGOMERY));
+        }
+        // if it's not, it's even
+
+        // find the lowest set bit (eg. the max pow of 2 that divides $n)
+        for ($i = 0; $i < count($n->value); ++$i) {
+            if ($n->value[$i]) {
+                $temp = decbin($n->value[$i]);
+                $j = strlen($temp) - strrpos($temp, '1') - 1;
+                $j+= 26 * $i;
+                break;
+            }
+        }
+        // at this point, 2^$j * $n/(2^$j) == $n
+
+        $mod1 = $n->copy();
+        $mod1->_rshift($j);
+        $mod2 = new static();
+        $mod2->value = array(1);
+        $mod2->_lshift($j);
+
+        $part1 = ($mod1->value != array(1)) ? $this->_slidingWindow($e, $mod1, self::MONTGOMERY) : new static();
+        $part2 = $this->_slidingWindow($e, $mod2, self::POWEROF2);
+
+        $y1 = $mod2->modInverse($mod1);
+        $y2 = $mod1->modInverse($mod2);
+
+        $result = $part1->multiply($mod2);
+        $result = $result->multiply($y1);
+
+        $temp = $part2->multiply($mod1);
+        $temp = $temp->multiply($y2);
+
+        $result = $result->add($temp);
+        list(, $result) = $result->divide($n);
+
+        return $this->_normalize($result);
+    }
+
+    /**
+     * Performs modular exponentiation.
+     *
+     * Alias for modPow().
+     *
+     * @param \phpseclib\Math\BigInteger $e
+     * @param \phpseclib\Math\BigInteger $n
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     */
+    function powMod($e, $n)
+    {
+        return $this->modPow($e, $n);
+    }
+
+    /**
+     * Sliding Window k-ary Modular Exponentiation
+     *
+     * Based on {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf#page=27 HAC 14.85} /
+     * {@link http://math.libtomcrypt.com/files/tommath.pdf#page=210 MPM 7.7}.  In a departure from those algorithims,
+     * however, this function performs a modular reduction after every multiplication and squaring operation.
+     * As such, this function has the same preconditions that the reductions being used do.
+     *
+     * @param \phpseclib\Math\BigInteger $e
+     * @param \phpseclib\Math\BigInteger $n
+     * @param int $mode
+     * @return \phpseclib\Math\BigInteger
+     * @access private
+     */
+    function _slidingWindow($e, $n, $mode)
+    {
+        static $window_ranges = array(7, 25, 81, 241, 673, 1793); // from BigInteger.java's oddModPow function
+        //static $window_ranges = array(0, 7, 36, 140, 450, 1303, 3529); // from MPM 7.3.1
+
+        $e_value = $e->value;
+        $e_length = count($e_value) - 1;
+        $e_bits = decbin($e_value[$e_length]);
+        for ($i = $e_length - 1; $i >= 0; --$i) {
+            $e_bits.= str_pad(decbin($e_value[$i]), self::$base, '0', STR_PAD_LEFT);
+        }
+
+        $e_length = strlen($e_bits);
+
+        // calculate the appropriate window size.
+        // $window_size == 3 if $window_ranges is between 25 and 81, for example.
+        for ($i = 0, $window_size = 1; $i < count($window_ranges) && $e_length > $window_ranges[$i]; ++$window_size, ++$i) {
+        }
+
+        $n_value = $n->value;
+
+        // precompute $this^0 through $this^$window_size
+        $powers = array();
+        $powers[1] = $this->_prepareReduce($this->value, $n_value, $mode);
+        $powers[2] = $this->_squareReduce($powers[1], $n_value, $mode);
+
+        // we do every other number since substr($e_bits, $i, $j+1) (see below) is supposed to end
+        // in a 1.  ie. it's supposed to be odd.
+        $temp = 1 << ($window_size - 1);
+        for ($i = 1; $i < $temp; ++$i) {
+            $i2 = $i << 1;
+            $powers[$i2 + 1] = $this->_multiplyReduce($powers[$i2 - 1], $powers[2], $n_value, $mode);
+        }
+
+        $result = array(1);
+        $result = $this->_prepareReduce($result, $n_value, $mode);
+
+        for ($i = 0; $i < $e_length;) {
+            if (!$e_bits[$i]) {
+                $result = $this->_squareReduce($result, $n_value, $mode);
+                ++$i;
+            } else {
+                for ($j = $window_size - 1; $j > 0; --$j) {
+                    if (!empty($e_bits[$i + $j])) {
+                        break;
+                    }
+                }
+
+                // eg. the length of substr($e_bits, $i, $j + 1)
+                for ($k = 0; $k <= $j; ++$k) {
+                    $result = $this->_squareReduce($result, $n_value, $mode);
+                }
+
+                $result = $this->_multiplyReduce($result, $powers[bindec(substr($e_bits, $i, $j + 1))], $n_value, $mode);
+
+                $i += $j + 1;
+            }
+        }
+
+        $temp = new static();
+        $temp->value = $this->_reduce($result, $n_value, $mode);
+
+        return $temp;
+    }
+
+    /**
+     * Modular reduction
+     *
+     * For most $modes this will return the remainder.
+     *
+     * @see self::_slidingWindow()
+     * @access private
+     * @param array $x
+     * @param array $n
+     * @param int $mode
+     * @return array
+     */
+    function _reduce($x, $n, $mode)
+    {
+        switch ($mode) {
+            case self::MONTGOMERY:
+                return $this->_montgomery($x, $n);
+            case self::BARRETT:
+                return $this->_barrett($x, $n);
+            case self::POWEROF2:
+                $lhs = new static();
+                $lhs->value = $x;
+                $rhs = new static();
+                $rhs->value = $n;
+                return $x->_mod2($n);
+            case self::CLASSIC:
+                $lhs = new static();
+                $lhs->value = $x;
+                $rhs = new static();
+                $rhs->value = $n;
+                list(, $temp) = $lhs->divide($rhs);
+                return $temp->value;
+            case self::NONE:
+                return $x;
+            default:
+                // an invalid $mode was provided
+        }
+    }
+
+    /**
+     * Modular reduction preperation
+     *
+     * @see self::_slidingWindow()
+     * @access private
+     * @param array $x
+     * @param array $n
+     * @param int $mode
+     * @return array
+     */
+    function _prepareReduce($x, $n, $mode)
+    {
+        if ($mode == self::MONTGOMERY) {
+            return $this->_prepMontgomery($x, $n);
+        }
+        return $this->_reduce($x, $n, $mode);
+    }
+
+    /**
+     * Modular multiply
+     *
+     * @see self::_slidingWindow()
+     * @access private
+     * @param array $x
+     * @param array $y
+     * @param array $n
+     * @param int $mode
+     * @return array
+     */
+    function _multiplyReduce($x, $y, $n, $mode)
+    {
+        if ($mode == self::MONTGOMERY) {
+            return $this->_montgomeryMultiply($x, $y, $n);
+        }
+        $temp = $this->_multiply($x, false, $y, false);
+        return $this->_reduce($temp[self::VALUE], $n, $mode);
+    }
+
+    /**
+     * Modular square
+     *
+     * @see self::_slidingWindow()
+     * @access private
+     * @param array $x
+     * @param array $n
+     * @param int $mode
+     * @return array
+     */
+    function _squareReduce($x, $n, $mode)
+    {
+        if ($mode == self::MONTGOMERY) {
+            return $this->_montgomeryMultiply($x, $x, $n);
+        }
+        return $this->_reduce($this->_square($x), $n, $mode);
+    }
+
+    /**
+     * Modulos for Powers of Two
+     *
+     * Calculates $x%$n, where $n = 2**$e, for some $e.  Since this is basically the same as doing $x & ($n-1),
+     * we'll just use this function as a wrapper for doing that.
+     *
+     * @see self::_slidingWindow()
+     * @access private
+     * @param \phpseclib\Math\BigInteger
+     * @return \phpseclib\Math\BigInteger
+     */
+    function _mod2($n)
+    {
+        $temp = new static();
+        $temp->value = array(1);
+        return $this->bitwise_and($n->subtract($temp));
+    }
+
+    /**
+     * Barrett Modular Reduction
+     *
+     * See {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf#page=14 HAC 14.3.3} /
+     * {@link http://math.libtomcrypt.com/files/tommath.pdf#page=165 MPM 6.2.5} for more information.  Modified slightly,
+     * so as not to require negative numbers (initially, this script didn't support negative numbers).
+     *
+     * Employs "folding", as described at
+     * {@link http://www.cosic.esat.kuleuven.be/publications/thesis-149.pdf#page=66 thesis-149.pdf#page=66}.  To quote from
+     * it, "the idea [behind folding] is to find a value x' such that x (mod m) = x' (mod m), with x' being smaller than x."
+     *
+     * Unfortunately, the "Barrett Reduction with Folding" algorithm described in thesis-149.pdf is not, as written, all that
+     * usable on account of (1) its not using reasonable radix points as discussed in
+     * {@link http://math.libtomcrypt.com/files/tommath.pdf#page=162 MPM 6.2.2} and (2) the fact that, even with reasonable
+     * radix points, it only works when there are an even number of digits in the denominator.  The reason for (2) is that
+     * (x >> 1) + (x >> 1) != x / 2 + x / 2.  If x is even, they're the same, but if x is odd, they're not.  See the in-line
+     * comments for details.
+     *
+     * @see self::_slidingWindow()
+     * @access private
+     * @param array $n
+     * @param array $m
+     * @return array
+     */
+    function _barrett($n, $m)
+    {
+        static $cache = array(
+            self::VARIABLE => array(),
+            self::DATA => array()
+        );
+
+        $m_length = count($m);
+
+        // if ($this->_compare($n, $this->_square($m)) >= 0) {
+        if (count($n) > 2 * $m_length) {
+            $lhs = new static();
+            $rhs = new static();
+            $lhs->value = $n;
+            $rhs->value = $m;
+            list(, $temp) = $lhs->divide($rhs);
+            return $temp->value;
+        }
+
+        // if (m.length >> 1) + 2 <= m.length then m is too small and n can't be reduced
+        if ($m_length < 5) {
+            return $this->_regularBarrett($n, $m);
+        }
+
+        // n = 2 * m.length
+
+        if (($key = array_search($m, $cache[self::VARIABLE])) === false) {
+            $key = count($cache[self::VARIABLE]);
+            $cache[self::VARIABLE][] = $m;
+
+            $lhs = new static();
+            $lhs_value = &$lhs->value;
+            $lhs_value = $this->_array_repeat(0, $m_length + ($m_length >> 1));
+            $lhs_value[] = 1;
+            $rhs = new static();
+            $rhs->value = $m;
+
+            list($u, $m1) = $lhs->divide($rhs);
+            $u = $u->value;
+            $m1 = $m1->value;
+
+            $cache[self::DATA][] = array(
+                'u' => $u, // m.length >> 1 (technically (m.length >> 1) + 1)
+                'm1'=> $m1 // m.length
+            );
+        } else {
+            extract($cache[self::DATA][$key]);
+        }
+
+        $cutoff = $m_length + ($m_length >> 1);
+        $lsd = array_slice($n, 0, $cutoff); // m.length + (m.length >> 1)
+        $msd = array_slice($n, $cutoff);    // m.length >> 1
+        $lsd = $this->_trim($lsd);
+        $temp = $this->_multiply($msd, false, $m1, false);
+        $n = $this->_add($lsd, false, $temp[self::VALUE], false); // m.length + (m.length >> 1) + 1
+
+        if ($m_length & 1) {
+            return $this->_regularBarrett($n[self::VALUE], $m);
+        }
+
+        // (m.length + (m.length >> 1) + 1) - (m.length - 1) == (m.length >> 1) + 2
+        $temp = array_slice($n[self::VALUE], $m_length - 1);
+        // if even: ((m.length >> 1) + 2) + (m.length >> 1) == m.length + 2
+        // if odd:  ((m.length >> 1) + 2) + (m.length >> 1) == (m.length - 1) + 2 == m.length + 1
+        $temp = $this->_multiply($temp, false, $u, false);
+        // if even: (m.length + 2) - ((m.length >> 1) + 1) = m.length - (m.length >> 1) + 1
+        // if odd:  (m.length + 1) - ((m.length >> 1) + 1) = m.length - (m.length >> 1)
+        $temp = array_slice($temp[self::VALUE], ($m_length >> 1) + 1);
+        // if even: (m.length - (m.length >> 1) + 1) + m.length = 2 * m.length - (m.length >> 1) + 1
+        // if odd:  (m.length - (m.length >> 1)) + m.length     = 2 * m.length - (m.length >> 1)
+        $temp = $this->_multiply($temp, false, $m, false);
+
+        // at this point, if m had an odd number of digits, we'd be subtracting a 2 * m.length - (m.length >> 1) digit
+        // number from a m.length + (m.length >> 1) + 1 digit number.  ie. there'd be an extra digit and the while loop
+        // following this comment would loop a lot (hence our calling _regularBarrett() in that situation).
+
+        $result = $this->_subtract($n[self::VALUE], false, $temp[self::VALUE], false);
+
+        while ($this->_compare($result[self::VALUE], $result[self::SIGN], $m, false) >= 0) {
+            $result = $this->_subtract($result[self::VALUE], $result[self::SIGN], $m, false);
+        }
+
+        return $result[self::VALUE];
+    }
+
+    /**
+     * (Regular) Barrett Modular Reduction
+     *
+     * For numbers with more than four digits BigInteger::_barrett() is faster.  The difference between that and this
+     * is that this function does not fold the denominator into a smaller form.
+     *
+     * @see self::_slidingWindow()
+     * @access private
+     * @param array $x
+     * @param array $n
+     * @return array
+     */
+    function _regularBarrett($x, $n)
+    {
+        static $cache = array(
+            self::VARIABLE => array(),
+            self::DATA => array()
+        );
+
+        $n_length = count($n);
+
+        if (count($x) > 2 * $n_length) {
+            $lhs = new static();
+            $rhs = new static();
+            $lhs->value = $x;
+            $rhs->value = $n;
+            list(, $temp) = $lhs->divide($rhs);
+            return $temp->value;
+        }
+
+        if (($key = array_search($n, $cache[self::VARIABLE])) === false) {
+            $key = count($cache[self::VARIABLE]);
+            $cache[self::VARIABLE][] = $n;
+            $lhs = new static();
+            $lhs_value = &$lhs->value;
+            $lhs_value = $this->_array_repeat(0, 2 * $n_length);
+            $lhs_value[] = 1;
+            $rhs = new static();
+            $rhs->value = $n;
+            list($temp, ) = $lhs->divide($rhs); // m.length
+            $cache[self::DATA][] = $temp->value;
+        }
+
+        // 2 * m.length - (m.length - 1) = m.length + 1
+        $temp = array_slice($x, $n_length - 1);
+        // (m.length + 1) + m.length = 2 * m.length + 1
+        $temp = $this->_multiply($temp, false, $cache[self::DATA][$key], false);
+        // (2 * m.length + 1) - (m.length - 1) = m.length + 2
+        $temp = array_slice($temp[self::VALUE], $n_length + 1);
+
+        // m.length + 1
+        $result = array_slice($x, 0, $n_length + 1);
+        // m.length + 1
+        $temp = $this->_multiplyLower($temp, false, $n, false, $n_length + 1);
+        // $temp == array_slice($temp->_multiply($temp, false, $n, false)->value, 0, $n_length + 1)
+
+        if ($this->_compare($result, false, $temp[self::VALUE], $temp[self::SIGN]) < 0) {
+            $corrector_value = $this->_array_repeat(0, $n_length + 1);
+            $corrector_value[count($corrector_value)] = 1;
+            $result = $this->_add($result, false, $corrector_value, false);
+            $result = $result[self::VALUE];
+        }
+
+        // at this point, we're subtracting a number with m.length + 1 digits from another number with m.length + 1 digits
+        $result = $this->_subtract($result, false, $temp[self::VALUE], $temp[self::SIGN]);
+        while ($this->_compare($result[self::VALUE], $result[self::SIGN], $n, false) > 0) {
+            $result = $this->_subtract($result[self::VALUE], $result[self::SIGN], $n, false);
+        }
+
+        return $result[self::VALUE];
+    }
+
+    /**
+     * Performs long multiplication up to $stop digits
+     *
+     * If you're going to be doing array_slice($product->value, 0, $stop), some cycles can be saved.
+     *
+     * @see self::_regularBarrett()
+     * @param array $x_value
+     * @param bool $x_negative
+     * @param array $y_value
+     * @param bool $y_negative
+     * @param int $stop
+     * @return array
+     * @access private
+     */
+    function _multiplyLower($x_value, $x_negative, $y_value, $y_negative, $stop)
+    {
+        $x_length = count($x_value);
+        $y_length = count($y_value);
+
+        if (!$x_length || !$y_length) { // a 0 is being multiplied
+            return array(
+                self::VALUE => array(),
+                self::SIGN => false
+            );
+        }
+
+        if ($x_length < $y_length) {
+            $temp = $x_value;
+            $x_value = $y_value;
+            $y_value = $temp;
+
+            $x_length = count($x_value);
+            $y_length = count($y_value);
+        }
+
+        $product_value = $this->_array_repeat(0, $x_length + $y_length);
+
+        // the following for loop could be removed if the for loop following it
+        // (the one with nested for loops) initially set $i to 0, but
+        // doing so would also make the result in one set of unnecessary adds,
+        // since on the outermost loops first pass, $product->value[$k] is going
+        // to always be 0
+
+        $carry = 0;
+
+        for ($j = 0; $j < $x_length; ++$j) { // ie. $i = 0, $k = $i
+            $temp = $x_value[$j] * $y_value[0] + $carry; // $product_value[$k] == 0
+            $carry = self::$base === 26 ? intval($temp / 0x4000000) : ($temp >> 31);
+            $product_value[$j] = (int) ($temp - self::$baseFull * $carry);
+        }
+
+        if ($j < $stop) {
+            $product_value[$j] = $carry;
+        }
+
+        // the above for loop is what the previous comment was talking about.  the
+        // following for loop is the "one with nested for loops"
+
+        for ($i = 1; $i < $y_length; ++$i) {
+            $carry = 0;
+
+            for ($j = 0, $k = $i; $j < $x_length && $k < $stop; ++$j, ++$k) {
+                $temp = $product_value[$k] + $x_value[$j] * $y_value[$i] + $carry;
+                $carry = self::$base === 26 ? intval($temp / 0x4000000) : ($temp >> 31);
+                $product_value[$k] = (int) ($temp - self::$baseFull * $carry);
+            }
+
+            if ($k < $stop) {
+                $product_value[$k] = $carry;
+            }
+        }
+
+        return array(
+            self::VALUE => $this->_trim($product_value),
+            self::SIGN => $x_negative != $y_negative
+        );
+    }
+
+    /**
+     * Montgomery Modular Reduction
+     *
+     * ($x->_prepMontgomery($n))->_montgomery($n) yields $x % $n.
+     * {@link http://math.libtomcrypt.com/files/tommath.pdf#page=170 MPM 6.3} provides insights on how this can be
+     * improved upon (basically, by using the comba method).  gcd($n, 2) must be equal to one for this function
+     * to work correctly.
+     *
+     * @see self::_prepMontgomery()
+     * @see self::_slidingWindow()
+     * @access private
+     * @param array $x
+     * @param array $n
+     * @return array
+     */
+    function _montgomery($x, $n)
+    {
+        static $cache = array(
+            self::VARIABLE => array(),
+            self::DATA => array()
+        );
+
+        if (($key = array_search($n, $cache[self::VARIABLE])) === false) {
+            $key = count($cache[self::VARIABLE]);
+            $cache[self::VARIABLE][] = $x;
+            $cache[self::DATA][] = $this->_modInverse67108864($n);
+        }
+
+        $k = count($n);
+
+        $result = array(self::VALUE => $x);
+
+        for ($i = 0; $i < $k; ++$i) {
+            $temp = $result[self::VALUE][$i] * $cache[self::DATA][$key];
+            $temp = $temp - self::$baseFull * (self::$base === 26 ? intval($temp / 0x4000000) : ($temp >> 31));
+            $temp = $this->_regularMultiply(array($temp), $n);
+            $temp = array_merge($this->_array_repeat(0, $i), $temp);
+            $result = $this->_add($result[self::VALUE], false, $temp, false);
+        }
+
+        $result[self::VALUE] = array_slice($result[self::VALUE], $k);
+
+        if ($this->_compare($result, false, $n, false) >= 0) {
+            $result = $this->_subtract($result[self::VALUE], false, $n, false);
+        }
+
+        return $result[self::VALUE];
+    }
+
+    /**
+     * Montgomery Multiply
+     *
+     * Interleaves the montgomery reduction and long multiplication algorithms together as described in
+     * {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf#page=13 HAC 14.36}
+     *
+     * @see self::_prepMontgomery()
+     * @see self::_montgomery()
+     * @access private
+     * @param array $x
+     * @param array $y
+     * @param array $m
+     * @return array
+     */
+    function _montgomeryMultiply($x, $y, $m)
+    {
+        $temp = $this->_multiply($x, false, $y, false);
+        return $this->_montgomery($temp[self::VALUE], $m);
+
+        // the following code, although not callable, can be run independently of the above code
+        // although the above code performed better in my benchmarks the following could might
+        // perform better under different circumstances. in lieu of deleting it it's just been
+        // made uncallable
+
+        static $cache = array(
+            self::VARIABLE => array(),
+            self::DATA => array()
+        );
+
+        if (($key = array_search($m, $cache[self::VARIABLE])) === false) {
+            $key = count($cache[self::VARIABLE]);
+            $cache[self::VARIABLE][] = $m;
+            $cache[self::DATA][] = $this->_modInverse67108864($m);
+        }
+
+        $n = max(count($x), count($y), count($m));
+        $x = array_pad($x, $n, 0);
+        $y = array_pad($y, $n, 0);
+        $m = array_pad($m, $n, 0);
+        $a = array(self::VALUE => $this->_array_repeat(0, $n + 1));
+        for ($i = 0; $i < $n; ++$i) {
+            $temp = $a[self::VALUE][0] + $x[$i] * $y[0];
+            $temp = $temp - self::$baseFull * (self::$base === 26 ? intval($temp / 0x4000000) : ($temp >> 31));
+            $temp = $temp * $cache[self::DATA][$key];
+            $temp = $temp - self::$baseFull * (self::$base === 26 ? intval($temp / 0x4000000) : ($temp >> 31));
+            $temp = $this->_add($this->_regularMultiply(array($x[$i]), $y), false, $this->_regularMultiply(array($temp), $m), false);
+            $a = $this->_add($a[self::VALUE], false, $temp[self::VALUE], false);
+            $a[self::VALUE] = array_slice($a[self::VALUE], 1);
+        }
+        if ($this->_compare($a[self::VALUE], false, $m, false) >= 0) {
+            $a = $this->_subtract($a[self::VALUE], false, $m, false);
+        }
+        return $a[self::VALUE];
+    }
+
+    /**
+     * Prepare a number for use in Montgomery Modular Reductions
+     *
+     * @see self::_montgomery()
+     * @see self::_slidingWindow()
+     * @access private
+     * @param array $x
+     * @param array $n
+     * @return array
+     */
+    function _prepMontgomery($x, $n)
+    {
+        $lhs = new static();
+        $lhs->value = array_merge($this->_array_repeat(0, count($n)), $x);
+        $rhs = new static();
+        $rhs->value = $n;
+
+        list(, $temp) = $lhs->divide($rhs);
+        return $temp->value;
+    }
+
+    /**
+     * Modular Inverse of a number mod 2**26 (eg. 67108864)
+     *
+     * Based off of the bnpInvDigit function implemented and justified in the following URL:
+     *
+     * {@link http://www-cs-students.stanford.edu/~tjw/jsbn/jsbn.js}
+     *
+     * The following URL provides more info:
+     *
+     * {@link http://groups.google.com/group/sci.crypt/msg/7a137205c1be7d85}
+     *
+     * As for why we do all the bitmasking...  strange things can happen when converting from floats to ints. For
+     * instance, on some computers, var_dump((int) -4294967297) yields int(-1) and on others, it yields
+     * int(-2147483648).  To avoid problems stemming from this, we use bitmasks to guarantee that ints aren't
+     * auto-converted to floats.  The outermost bitmask is present because without it, there's no guarantee that
+     * the "residue" returned would be the so-called "common residue".  We use fmod, in the last step, because the
+     * maximum possible $x is 26 bits and the maximum $result is 16 bits.  Thus, we have to be able to handle up to
+     * 40 bits, which only 64-bit floating points will support.
+     *
+     * Thanks to Pedro Gimeno Fortea for input!
+     *
+     * @see self::_montgomery()
+     * @access private
+     * @param array $x
+     * @return int
+     */
+    function _modInverse67108864($x) // 2**26 == 67,108,864
+    {
+        $x = -$x[0];
+        $result = $x & 0x3; // x**-1 mod 2**2
+        $result = ($result * (2 - $x * $result)) & 0xF; // x**-1 mod 2**4
+        $result = ($result * (2 - ($x & 0xFF) * $result))  & 0xFF; // x**-1 mod 2**8
+        $result = ($result * ((2 - ($x & 0xFFFF) * $result) & 0xFFFF)) & 0xFFFF; // x**-1 mod 2**16
+        $result = fmod($result * (2 - fmod($x * $result, self::$baseFull)), self::$baseFull); // x**-1 mod 2**26
+        return $result & self::$maxDigit;
+    }
+
+    /**
+     * Calculates modular inverses.
+     *
+     * Say you have (30 mod 17 * x mod 17) mod 17 == 1.  x can be found using modular inverses.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger(30);
+     *    $b = new \phpseclib\Math\BigInteger(17);
+     *
+     *    $c = $a->modInverse($b);
+     *    echo $c->toString(); // outputs 4
+     *
+     *    echo "\r\n";
+     *
+     *    $d = $a->multiply($c);
+     *    list(, $d) = $d->divide($b);
+     *    echo $d; // outputs 1 (as per the definition of modular inverse)
+     * ?>
+     * </code>
+     *
+     * @param \phpseclib\Math\BigInteger $n
+     * @return \phpseclib\Math\BigInteger|false
+     * @access public
+     * @internal See {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf#page=21 HAC 14.64} for more information.
+     */
+    function modInverse($n)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                $temp = new static();
+                $temp->value = gmp_invert($this->value, $n->value);
+
+                return ($temp->value === false) ? false : $this->_normalize($temp);
+        }
+
+        static $zero, $one;
+        if (!isset($zero)) {
+            $zero = new static();
+            $one = new static(1);
+        }
+
+        // $x mod -$n == $x mod $n.
+        $n = $n->abs();
+
+        if ($this->compare($zero) < 0) {
+            $temp = $this->abs();
+            $temp = $temp->modInverse($n);
+            return $this->_normalize($n->subtract($temp));
+        }
+
+        extract($this->extendedGCD($n));
+
+        if (!$gcd->equals($one)) {
+            return false;
+        }
+
+        $x = $x->compare($zero) < 0 ? $x->add($n) : $x;
+
+        return $this->compare($zero) < 0 ? $this->_normalize($n->subtract($x)) : $this->_normalize($x);
+    }
+
+    /**
+     * Calculates the greatest common divisor and Bezout's identity.
+     *
+     * Say you have 693 and 609.  The GCD is 21.  Bezout's identity states that there exist integers x and y such that
+     * 693*x + 609*y == 21.  In point of fact, there are actually an infinite number of x and y combinations and which
+     * combination is returned is dependent upon which mode is in use.  See
+     * {@link http://en.wikipedia.org/wiki/B%C3%A9zout%27s_identity Bezout's identity - Wikipedia} for more information.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger(693);
+     *    $b = new \phpseclib\Math\BigInteger(609);
+     *
+     *    extract($a->extendedGCD($b));
+     *
+     *    echo $gcd->toString() . "\r\n"; // outputs 21
+     *    echo $a->toString() * $x->toString() + $b->toString() * $y->toString(); // outputs 21
+     * ?>
+     * </code>
+     *
+     * @param \phpseclib\Math\BigInteger $n
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     * @internal Calculates the GCD using the binary xGCD algorithim described in
+     *    {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap14.pdf#page=19 HAC 14.61}.  As the text above 14.61 notes,
+     *    the more traditional algorithim requires "relatively costly multiple-precision divisions".
+     */
+    function extendedGCD($n)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                extract(gmp_gcdext($this->value, $n->value));
+
+                return array(
+                    'gcd' => $this->_normalize(new static($g)),
+                    'x'   => $this->_normalize(new static($s)),
+                    'y'   => $this->_normalize(new static($t))
+                );
+            case self::MODE_BCMATH:
+                // it might be faster to use the binary xGCD algorithim here, as well, but (1) that algorithim works
+                // best when the base is a power of 2 and (2) i don't think it'd make much difference, anyway.  as is,
+                // the basic extended euclidean algorithim is what we're using.
+
+                $u = $this->value;
+                $v = $n->value;
+
+                $a = '1';
+                $b = '0';
+                $c = '0';
+                $d = '1';
+
+                while (bccomp($v, '0', 0) != 0) {
+                    $q = bcdiv($u, $v, 0);
+
+                    $temp = $u;
+                    $u = $v;
+                    $v = bcsub($temp, bcmul($v, $q, 0), 0);
+
+                    $temp = $a;
+                    $a = $c;
+                    $c = bcsub($temp, bcmul($a, $q, 0), 0);
+
+                    $temp = $b;
+                    $b = $d;
+                    $d = bcsub($temp, bcmul($b, $q, 0), 0);
+                }
+
+                return array(
+                    'gcd' => $this->_normalize(new static($u)),
+                    'x'   => $this->_normalize(new static($a)),
+                    'y'   => $this->_normalize(new static($b))
+                );
+        }
+
+        $y = $n->copy();
+        $x = $this->copy();
+        $g = new static();
+        $g->value = array(1);
+
+        while (!(($x->value[0] & 1)|| ($y->value[0] & 1))) {
+            $x->_rshift(1);
+            $y->_rshift(1);
+            $g->_lshift(1);
+        }
+
+        $u = $x->copy();
+        $v = $y->copy();
+
+        $a = new static();
+        $b = new static();
+        $c = new static();
+        $d = new static();
+
+        $a->value = $d->value = $g->value = array(1);
+        $b->value = $c->value = array();
+
+        while (!empty($u->value)) {
+            while (!($u->value[0] & 1)) {
+                $u->_rshift(1);
+                if ((!empty($a->value) && ($a->value[0] & 1)) || (!empty($b->value) && ($b->value[0] & 1))) {
+                    $a = $a->add($y);
+                    $b = $b->subtract($x);
+                }
+                $a->_rshift(1);
+                $b->_rshift(1);
+            }
+
+            while (!($v->value[0] & 1)) {
+                $v->_rshift(1);
+                if ((!empty($d->value) && ($d->value[0] & 1)) || (!empty($c->value) && ($c->value[0] & 1))) {
+                    $c = $c->add($y);
+                    $d = $d->subtract($x);
+                }
+                $c->_rshift(1);
+                $d->_rshift(1);
+            }
+
+            if ($u->compare($v) >= 0) {
+                $u = $u->subtract($v);
+                $a = $a->subtract($c);
+                $b = $b->subtract($d);
+            } else {
+                $v = $v->subtract($u);
+                $c = $c->subtract($a);
+                $d = $d->subtract($b);
+            }
+        }
+
+        return array(
+            'gcd' => $this->_normalize($g->multiply($v)),
+            'x'   => $this->_normalize($c),
+            'y'   => $this->_normalize($d)
+        );
+    }
+
+    /**
+     * Calculates the greatest common divisor
+     *
+     * Say you have 693 and 609.  The GCD is 21.
+     *
+     * Here's an example:
+     * <code>
+     * <?php
+     *    $a = new \phpseclib\Math\BigInteger(693);
+     *    $b = new \phpseclib\Math\BigInteger(609);
+     *
+     *    $gcd = a->extendedGCD($b);
+     *
+     *    echo $gcd->toString() . "\r\n"; // outputs 21
+     * ?>
+     * </code>
+     *
+     * @param \phpseclib\Math\BigInteger $n
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     */
+    function gcd($n)
+    {
+        extract($this->extendedGCD($n));
+        return $gcd;
+    }
+
+    /**
+     * Absolute value.
+     *
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     */
+    function abs()
+    {
+        $temp = new static();
+
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                $temp->value = gmp_abs($this->value);
+                break;
+            case self::MODE_BCMATH:
+                $temp->value = (bccomp($this->value, '0', 0) < 0) ? substr($this->value, 1) : $this->value;
+                break;
+            default:
+                $temp->value = $this->value;
+        }
+
+        return $temp;
+    }
+
+    /**
+     * Compares two numbers.
+     *
+     * Although one might think !$x->compare($y) means $x != $y, it, in fact, means the opposite.  The reason for this is
+     * demonstrated thusly:
+     *
+     * $x  > $y: $x->compare($y)  > 0
+     * $x  < $y: $x->compare($y)  < 0
+     * $x == $y: $x->compare($y) == 0
+     *
+     * Note how the same comparison operator is used.  If you want to test for equality, use $x->equals($y).
+     *
+     * @param \phpseclib\Math\BigInteger $y
+     * @return int < 0 if $this is less than $y; > 0 if $this is greater than $y, and 0 if they are equal.
+     * @access public
+     * @see self::equals()
+     * @internal Could return $this->subtract($x), but that's not as fast as what we do do.
+     */
+    function compare($y)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                return gmp_cmp($this->value, $y->value);
+            case self::MODE_BCMATH:
+                return bccomp($this->value, $y->value, 0);
+        }
+
+        return $this->_compare($this->value, $this->is_negative, $y->value, $y->is_negative);
+    }
+
+    /**
+     * Compares two numbers.
+     *
+     * @param array $x_value
+     * @param bool $x_negative
+     * @param array $y_value
+     * @param bool $y_negative
+     * @return int
+     * @see self::compare()
+     * @access private
+     */
+    function _compare($x_value, $x_negative, $y_value, $y_negative)
+    {
+        if ($x_negative != $y_negative) {
+            return (!$x_negative && $y_negative) ? 1 : -1;
+        }
+
+        $result = $x_negative ? -1 : 1;
+
+        if (count($x_value) != count($y_value)) {
+            return (count($x_value) > count($y_value)) ? $result : -$result;
+        }
+        $size = max(count($x_value), count($y_value));
+
+        $x_value = array_pad($x_value, $size, 0);
+        $y_value = array_pad($y_value, $size, 0);
+
+        for ($i = count($x_value) - 1; $i >= 0; --$i) {
+            if ($x_value[$i] != $y_value[$i]) {
+                return ($x_value[$i] > $y_value[$i]) ? $result : -$result;
+            }
+        }
+
+        return 0;
+    }
+
+    /**
+     * Tests the equality of two numbers.
+     *
+     * If you need to see if one number is greater than or less than another number, use BigInteger::compare()
+     *
+     * @param \phpseclib\Math\BigInteger $x
+     * @return bool
+     * @access public
+     * @see self::compare()
+     */
+    function equals($x)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                return gmp_cmp($this->value, $x->value) == 0;
+            default:
+                return $this->value === $x->value && $this->is_negative == $x->is_negative;
+        }
+    }
+
+    /**
+     * Set Precision
+     *
+     * Some bitwise operations give different results depending on the precision being used.  Examples include left
+     * shift, not, and rotates.
+     *
+     * @param int $bits
+     * @access public
+     */
+    function setPrecision($bits)
+    {
+        $this->precision = $bits;
+        if (MATH_BIGINTEGER_MODE != self::MODE_BCMATH) {
+            $this->bitmask = new static(chr((1 << ($bits & 0x7)) - 1) . str_repeat(chr(0xFF), $bits >> 3), 256);
+        } else {
+            $this->bitmask = new static(bcpow('2', $bits, 0));
+        }
+
+        $temp = $this->_normalize($this);
+        $this->value = $temp->value;
+    }
+
+    /**
+     * Logical And
+     *
+     * @param \phpseclib\Math\BigInteger $x
+     * @access public
+     * @internal Implemented per a request by Lluis Pamies i Juarez <lluis _a_ pamies.cat>
+     * @return \phpseclib\Math\BigInteger
+     */
+    function bitwise_and($x)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                $temp = new static();
+                $temp->value = gmp_and($this->value, $x->value);
+
+                return $this->_normalize($temp);
+            case self::MODE_BCMATH:
+                $left = $this->toBytes();
+                $right = $x->toBytes();
+
+                $length = max(strlen($left), strlen($right));
+
+                $left = str_pad($left, $length, chr(0), STR_PAD_LEFT);
+                $right = str_pad($right, $length, chr(0), STR_PAD_LEFT);
+
+                return $this->_normalize(new static($left & $right, 256));
+        }
+
+        $result = $this->copy();
+
+        $length = min(count($x->value), count($this->value));
+
+        $result->value = array_slice($result->value, 0, $length);
+
+        for ($i = 0; $i < $length; ++$i) {
+            $result->value[$i]&= $x->value[$i];
+        }
+
+        return $this->_normalize($result);
+    }
+
+    /**
+     * Logical Or
+     *
+     * @param \phpseclib\Math\BigInteger $x
+     * @access public
+     * @internal Implemented per a request by Lluis Pamies i Juarez <lluis _a_ pamies.cat>
+     * @return \phpseclib\Math\BigInteger
+     */
+    function bitwise_or($x)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                $temp = new static();
+                $temp->value = gmp_or($this->value, $x->value);
+
+                return $this->_normalize($temp);
+            case self::MODE_BCMATH:
+                $left = $this->toBytes();
+                $right = $x->toBytes();
+
+                $length = max(strlen($left), strlen($right));
+
+                $left = str_pad($left, $length, chr(0), STR_PAD_LEFT);
+                $right = str_pad($right, $length, chr(0), STR_PAD_LEFT);
+
+                return $this->_normalize(new static($left | $right, 256));
+        }
+
+        $length = max(count($this->value), count($x->value));
+        $result = $this->copy();
+        $result->value = array_pad($result->value, $length, 0);
+        $x->value = array_pad($x->value, $length, 0);
+
+        for ($i = 0; $i < $length; ++$i) {
+            $result->value[$i]|= $x->value[$i];
+        }
+
+        return $this->_normalize($result);
+    }
+
+    /**
+     * Logical Exclusive-Or
+     *
+     * @param \phpseclib\Math\BigInteger $x
+     * @access public
+     * @internal Implemented per a request by Lluis Pamies i Juarez <lluis _a_ pamies.cat>
+     * @return \phpseclib\Math\BigInteger
+     */
+    function bitwise_xor($x)
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                $temp = new static();
+                $temp->value = gmp_xor(gmp_abs($this->value), gmp_abs($x->value));
+                return $this->_normalize($temp);
+            case self::MODE_BCMATH:
+                $left = $this->toBytes();
+                $right = $x->toBytes();
+
+                $length = max(strlen($left), strlen($right));
+
+                $left = str_pad($left, $length, chr(0), STR_PAD_LEFT);
+                $right = str_pad($right, $length, chr(0), STR_PAD_LEFT);
+
+                return $this->_normalize(new static($left ^ $right, 256));
+        }
+
+        $length = max(count($this->value), count($x->value));
+        $result = $this->copy();
+        $result->is_negative = false;
+        $result->value = array_pad($result->value, $length, 0);
+        $x->value = array_pad($x->value, $length, 0);
+
+        for ($i = 0; $i < $length; ++$i) {
+            $result->value[$i]^= $x->value[$i];
+        }
+
+        return $this->_normalize($result);
+    }
+
+    /**
+     * Logical Not
+     *
+     * @access public
+     * @internal Implemented per a request by Lluis Pamies i Juarez <lluis _a_ pamies.cat>
+     * @return \phpseclib\Math\BigInteger
+     */
+    function bitwise_not()
+    {
+        // calculuate "not" without regard to $this->precision
+        // (will always result in a smaller number.  ie. ~1 isn't 1111 1110 - it's 0)
+        $temp = $this->toBytes();
+        if ($temp == '') {
+            return $this->_normalize(new static());
+        }
+        $pre_msb = decbin(ord($temp[0]));
+        $temp = ~$temp;
+        $msb = decbin(ord($temp[0]));
+        if (strlen($msb) == 8) {
+            $msb = substr($msb, strpos($msb, '0'));
+        }
+        $temp[0] = chr(bindec($msb));
+
+        // see if we need to add extra leading 1's
+        $current_bits = strlen($pre_msb) + 8 * strlen($temp) - 8;
+        $new_bits = $this->precision - $current_bits;
+        if ($new_bits <= 0) {
+            return $this->_normalize(new static($temp, 256));
+        }
+
+        // generate as many leading 1's as we need to.
+        $leading_ones = chr((1 << ($new_bits & 0x7)) - 1) . str_repeat(chr(0xFF), $new_bits >> 3);
+        $this->_base256_lshift($leading_ones, $current_bits);
+
+        $temp = str_pad($temp, strlen($leading_ones), chr(0), STR_PAD_LEFT);
+
+        return $this->_normalize(new static($leading_ones | $temp, 256));
+    }
+
+    /**
+     * Logical Right Shift
+     *
+     * Shifts BigInteger's by $shift bits, effectively dividing by 2**$shift.
+     *
+     * @param int $shift
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     * @internal The only version that yields any speed increases is the internal version.
+     */
+    function bitwise_rightShift($shift)
+    {
+        $temp = new static();
+
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                static $two;
+
+                if (!isset($two)) {
+                    $two = gmp_init('2');
+                }
+
+                $temp->value = gmp_div_q($this->value, gmp_pow($two, $shift));
+
+                break;
+            case self::MODE_BCMATH:
+                $temp->value = bcdiv($this->value, bcpow('2', $shift, 0), 0);
+
+                break;
+            default: // could just replace _lshift with this, but then all _lshift() calls would need to be rewritten
+                     // and I don't want to do that...
+                $temp->value = $this->value;
+                $temp->_rshift($shift);
+        }
+
+        return $this->_normalize($temp);
+    }
+
+    /**
+     * Logical Left Shift
+     *
+     * Shifts BigInteger's by $shift bits, effectively multiplying by 2**$shift.
+     *
+     * @param int $shift
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     * @internal The only version that yields any speed increases is the internal version.
+     */
+    function bitwise_leftShift($shift)
+    {
+        $temp = new static();
+
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                static $two;
+
+                if (!isset($two)) {
+                    $two = gmp_init('2');
+                }
+
+                $temp->value = gmp_mul($this->value, gmp_pow($two, $shift));
+
+                break;
+            case self::MODE_BCMATH:
+                $temp->value = bcmul($this->value, bcpow('2', $shift, 0), 0);
+
+                break;
+            default: // could just replace _rshift with this, but then all _lshift() calls would need to be rewritten
+                     // and I don't want to do that...
+                $temp->value = $this->value;
+                $temp->_lshift($shift);
+        }
+
+        return $this->_normalize($temp);
+    }
+
+    /**
+     * Logical Left Rotate
+     *
+     * Instead of the top x bits being dropped they're appended to the shifted bit string.
+     *
+     * @param int $shift
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     */
+    function bitwise_leftRotate($shift)
+    {
+        $bits = $this->toBytes();
+
+        if ($this->precision > 0) {
+            $precision = $this->precision;
+            if (MATH_BIGINTEGER_MODE == self::MODE_BCMATH) {
+                $mask = $this->bitmask->subtract(new static(1));
+                $mask = $mask->toBytes();
+            } else {
+                $mask = $this->bitmask->toBytes();
+            }
+        } else {
+            $temp = ord($bits[0]);
+            for ($i = 0; $temp >> $i; ++$i) {
+            }
+            $precision = 8 * strlen($bits) - 8 + $i;
+            $mask = chr((1 << ($precision & 0x7)) - 1) . str_repeat(chr(0xFF), $precision >> 3);
+        }
+
+        if ($shift < 0) {
+            $shift+= $precision;
+        }
+        $shift%= $precision;
+
+        if (!$shift) {
+            return $this->copy();
+        }
+
+        $left = $this->bitwise_leftShift($shift);
+        $left = $left->bitwise_and(new static($mask, 256));
+        $right = $this->bitwise_rightShift($precision - $shift);
+        $result = MATH_BIGINTEGER_MODE != self::MODE_BCMATH ? $left->bitwise_or($right) : $left->add($right);
+        return $this->_normalize($result);
+    }
+
+    /**
+     * Logical Right Rotate
+     *
+     * Instead of the bottom x bits being dropped they're prepended to the shifted bit string.
+     *
+     * @param int $shift
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     */
+    function bitwise_rightRotate($shift)
+    {
+        return $this->bitwise_leftRotate(-$shift);
+    }
+
+    /**
+     * Generates a random BigInteger
+     *
+     * Byte length is equal to $length. Uses \phpseclib\Crypt\Random if it's loaded and mt_rand if it's not.
+     *
+     * @param int $length
+     * @return \phpseclib\Math\BigInteger
+     * @access private
+     */
+    function _random_number_helper($size)
+    {
+        if (class_exists('\phpseclib\Crypt\Random')) {
+            $random = Random::string($size);
+        } else {
+            $random = '';
+
+            if ($size & 1) {
+                $random.= chr(mt_rand(0, 255));
+            }
+
+            $blocks = $size >> 1;
+            for ($i = 0; $i < $blocks; ++$i) {
+                // mt_rand(-2147483648, 0x7FFFFFFF) always produces -2147483648 on some systems
+                $random.= pack('n', mt_rand(0, 0xFFFF));
+            }
+        }
+
+        return new static($random, 256);
+    }
+
+    /**
+     * Generate a random number
+     *
+     * Returns a random number between $min and $max where $min and $max
+     * can be defined using one of the two methods:
+     *
+     * $min->random($max)
+     * $max->random($min)
+     *
+     * @param \phpseclib\Math\BigInteger $arg1
+     * @param \phpseclib\Math\BigInteger $arg2
+     * @return \phpseclib\Math\BigInteger
+     * @access public
+     * @internal The API for creating random numbers used to be $a->random($min, $max), where $a was a BigInteger object.
+     *           That method is still supported for BC purposes.
+     */
+    function random($arg1, $arg2 = false)
+    {
+        if ($arg1 === false) {
+            return false;
+        }
+
+        if ($arg2 === false) {
+            $max = $arg1;
+            $min = $this;
+        } else {
+            $min = $arg1;
+            $max = $arg2;
+        }
+
+        $compare = $max->compare($min);
+
+        if (!$compare) {
+            return $this->_normalize($min);
+        } elseif ($compare < 0) {
+            // if $min is bigger then $max, swap $min and $max
+            $temp = $max;
+            $max = $min;
+            $min = $temp;
+        }
+
+        static $one;
+        if (!isset($one)) {
+            $one = new static(1);
+        }
+
+        $max = $max->subtract($min->subtract($one));
+        $size = strlen(ltrim($max->toBytes(), chr(0)));
+
+        /*
+            doing $random % $max doesn't work because some numbers will be more likely to occur than others.
+            eg. if $max is 140 and $random's max is 255 then that'd mean both $random = 5 and $random = 145
+            would produce 5 whereas the only value of random that could produce 139 would be 139. ie.
+            not all numbers would be equally likely. some would be more likely than others.
+
+            creating a whole new random number until you find one that is within the range doesn't work
+            because, for sufficiently small ranges, the likelihood that you'd get a number within that range
+            would be pretty small. eg. with $random's max being 255 and if your $max being 1 the probability
+            would be pretty high that $random would be greater than $max.
+
+            phpseclib works around this using the technique described here:
+
+            http://crypto.stackexchange.com/questions/5708/creating-a-small-number-from-a-cryptographically-secure-random-string
+        */
+        $random_max = new static(chr(1) . str_repeat("\0", $size), 256);
+        $random = $this->_random_number_helper($size);
+
+        list($max_multiple) = $random_max->divide($max);
+        $max_multiple = $max_multiple->multiply($max);
+
+        while ($random->compare($max_multiple) >= 0) {
+            $random = $random->subtract($max_multiple);
+            $random_max = $random_max->subtract($max_multiple);
+            $random = $random->bitwise_leftShift(8);
+            $random = $random->add($this->_random_number_helper(1));
+            $random_max = $random_max->bitwise_leftShift(8);
+            list($max_multiple) = $random_max->divide($max);
+            $max_multiple = $max_multiple->multiply($max);
+        }
+        list(, $random) = $random->divide($max);
+
+        return $this->_normalize($random->add($min));
+    }
+
+    /**
+     * Generate a random prime number.
+     *
+     * If there's not a prime within the given range, false will be returned.
+     * If more than $timeout seconds have elapsed, give up and return false.
+     *
+     * @param \phpseclib\Math\BigInteger $arg1
+     * @param \phpseclib\Math\BigInteger $arg2
+     * @param int $timeout
+     * @return Math_BigInteger|false
+     * @access public
+     * @internal See {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap4.pdf#page=15 HAC 4.44}.
+     */
+    function randomPrime($arg1, $arg2 = false, $timeout = false)
+    {
+        if ($arg1 === false) {
+            return false;
+        }
+
+        if ($arg2 === false) {
+            $max = $arg1;
+            $min = $this;
+        } else {
+            $min = $arg1;
+            $max = $arg2;
+        }
+
+        $compare = $max->compare($min);
+
+        if (!$compare) {
+            return $min->isPrime() ? $min : false;
+        } elseif ($compare < 0) {
+            // if $min is bigger then $max, swap $min and $max
+            $temp = $max;
+            $max = $min;
+            $min = $temp;
+        }
+
+        static $one, $two;
+        if (!isset($one)) {
+            $one = new static(1);
+            $two = new static(2);
+        }
+
+        $start = time();
+
+        $x = $this->random($min, $max);
+
+        // gmp_nextprime() requires PHP 5 >= 5.2.0 per <http://php.net/gmp-nextprime>.
+        if (MATH_BIGINTEGER_MODE == self::MODE_GMP && extension_loaded('gmp')) {
+            $p = new static();
+            $p->value = gmp_nextprime($x->value);
+
+            if ($p->compare($max) <= 0) {
+                return $p;
+            }
+
+            if (!$min->equals($x)) {
+                $x = $x->subtract($one);
+            }
+
+            return $x->randomPrime($min, $x);
+        }
+
+        if ($x->equals($two)) {
+            return $x;
+        }
+
+        $x->_make_odd();
+        if ($x->compare($max) > 0) {
+            // if $x > $max then $max is even and if $min == $max then no prime number exists between the specified range
+            if ($min->equals($max)) {
+                return false;
+            }
+            $x = $min->copy();
+            $x->_make_odd();
+        }
+
+        $initial_x = $x->copy();
+
+        while (true) {
+            if ($timeout !== false && time() - $start > $timeout) {
+                return false;
+            }
+
+            if ($x->isPrime()) {
+                return $x;
+            }
+
+            $x = $x->add($two);
+
+            if ($x->compare($max) > 0) {
+                $x = $min->copy();
+                if ($x->equals($two)) {
+                    return $x;
+                }
+                $x->_make_odd();
+            }
+
+            if ($x->equals($initial_x)) {
+                return false;
+            }
+        }
+    }
+
+    /**
+     * Make the current number odd
+     *
+     * If the current number is odd it'll be unchanged.  If it's even, one will be added to it.
+     *
+     * @see self::randomPrime()
+     * @access private
+     */
+    function _make_odd()
+    {
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                gmp_setbit($this->value, 0);
+                break;
+            case self::MODE_BCMATH:
+                if ($this->value[strlen($this->value) - 1] % 2 == 0) {
+                    $this->value = bcadd($this->value, '1');
+                }
+                break;
+            default:
+                $this->value[0] |= 1;
+        }
+    }
+
+    /**
+     * Checks a numer to see if it's prime
+     *
+     * Assuming the $t parameter is not set, this function has an error rate of 2**-80.  The main motivation for the
+     * $t parameter is distributability.  BigInteger::randomPrime() can be distributed across multiple pageloads
+     * on a website instead of just one.
+     *
+     * @param \phpseclib\Math\BigInteger $t
+     * @return bool
+     * @access public
+     * @internal Uses the
+     *     {@link http://en.wikipedia.org/wiki/Miller%E2%80%93Rabin_primality_test Miller-Rabin primality test}.  See
+     *     {@link http://www.cacr.math.uwaterloo.ca/hac/about/chap4.pdf#page=8 HAC 4.24}.
+     */
+    function isPrime($t = false)
+    {
+        $length = strlen($this->toBytes());
+
+        if (!$t) {
+            // see HAC 4.49 "Note (controlling the error probability)"
+            // @codingStandardsIgnoreStart
+                 if ($length >= 163) { $t =  2; } // floor(1300 / 8)
+            else if ($length >= 106) { $t =  3; } // floor( 850 / 8)
+            else if ($length >= 81 ) { $t =  4; } // floor( 650 / 8)
+            else if ($length >= 68 ) { $t =  5; } // floor( 550 / 8)
+            else if ($length >= 56 ) { $t =  6; } // floor( 450 / 8)
+            else if ($length >= 50 ) { $t =  7; } // floor( 400 / 8)
+            else if ($length >= 43 ) { $t =  8; } // floor( 350 / 8)
+            else if ($length >= 37 ) { $t =  9; } // floor( 300 / 8)
+            else if ($length >= 31 ) { $t = 12; } // floor( 250 / 8)
+            else if ($length >= 25 ) { $t = 15; } // floor( 200 / 8)
+            else if ($length >= 18 ) { $t = 18; } // floor( 150 / 8)
+            else                     { $t = 27; }
+            // @codingStandardsIgnoreEnd
+        }
+
+        // ie. gmp_testbit($this, 0)
+        // ie. isEven() or !isOdd()
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                return gmp_prob_prime($this->value, $t) != 0;
+            case self::MODE_BCMATH:
+                if ($this->value === '2') {
+                    return true;
+                }
+                if ($this->value[strlen($this->value) - 1] % 2 == 0) {
+                    return false;
+                }
+                break;
+            default:
+                if ($this->value == array(2)) {
+                    return true;
+                }
+                if (~$this->value[0] & 1) {
+                    return false;
+                }
+        }
+
+        static $primes, $zero, $one, $two;
+
+        if (!isset($primes)) {
+            $primes = array(
+                3,    5,    7,    11,   13,   17,   19,   23,   29,   31,   37,   41,   43,   47,   53,   59,
+                61,   67,   71,   73,   79,   83,   89,   97,   101,  103,  107,  109,  113,  127,  131,  137,
+                139,  149,  151,  157,  163,  167,  173,  179,  181,  191,  193,  197,  199,  211,  223,  227,
+                229,  233,  239,  241,  251,  257,  263,  269,  271,  277,  281,  283,  293,  307,  311,  313,
+                317,  331,  337,  347,  349,  353,  359,  367,  373,  379,  383,  389,  397,  401,  409,  419,
+                421,  431,  433,  439,  443,  449,  457,  461,  463,  467,  479,  487,  491,  499,  503,  509,
+                521,  523,  541,  547,  557,  563,  569,  571,  577,  587,  593,  599,  601,  607,  613,  617,
+                619,  631,  641,  643,  647,  653,  659,  661,  673,  677,  683,  691,  701,  709,  719,  727,
+                733,  739,  743,  751,  757,  761,  769,  773,  787,  797,  809,  811,  821,  823,  827,  829,
+                839,  853,  857,  859,  863,  877,  881,  883,  887,  907,  911,  919,  929,  937,  941,  947,
+                953,  967,  971,  977,  983,  991,  997
+            );
+
+            if (MATH_BIGINTEGER_MODE != self::MODE_INTERNAL) {
+                for ($i = 0; $i < count($primes); ++$i) {
+                    $primes[$i] = new static($primes[$i]);
+                }
+            }
+
+            $zero = new static();
+            $one = new static(1);
+            $two = new static(2);
+        }
+
+        if ($this->equals($one)) {
+            return false;
+        }
+
+        // see HAC 4.4.1 "Random search for probable primes"
+        if (MATH_BIGINTEGER_MODE != self::MODE_INTERNAL) {
+            foreach ($primes as $prime) {
+                list(, $r) = $this->divide($prime);
+                if ($r->equals($zero)) {
+                    return $this->equals($prime);
+                }
+            }
+        } else {
+            $value = $this->value;
+            foreach ($primes as $prime) {
+                list(, $r) = $this->_divide_digit($value, $prime);
+                if (!$r) {
+                    return count($value) == 1 && $value[0] == $prime;
+                }
+            }
+        }
+
+        $n   = $this->copy();
+        $n_1 = $n->subtract($one);
+        $n_2 = $n->subtract($two);
+
+        $r = $n_1->copy();
+        $r_value = $r->value;
+        // ie. $s = gmp_scan1($n, 0) and $r = gmp_div_q($n, gmp_pow(gmp_init('2'), $s));
+        if (MATH_BIGINTEGER_MODE == self::MODE_BCMATH) {
+            $s = 0;
+            // if $n was 1, $r would be 0 and this would be an infinite loop, hence our $this->equals($one) check earlier
+            while ($r->value[strlen($r->value) - 1] % 2 == 0) {
+                $r->value = bcdiv($r->value, '2', 0);
+                ++$s;
+            }
+        } else {
+            for ($i = 0, $r_length = count($r_value); $i < $r_length; ++$i) {
+                $temp = ~$r_value[$i] & 0xFFFFFF;
+                for ($j = 1; ($temp >> $j) & 1; ++$j) {
+                }
+                if ($j != 25) {
+                    break;
+                }
+            }
+            $s = 26 * $i + $j;
+            $r->_rshift($s);
+        }
+
+        for ($i = 0; $i < $t; ++$i) {
+            $a = $this->random($two, $n_2);
+            $y = $a->modPow($r, $n);
+
+            if (!$y->equals($one) && !$y->equals($n_1)) {
+                for ($j = 1; $j < $s && !$y->equals($n_1); ++$j) {
+                    $y = $y->modPow($two, $n);
+                    if ($y->equals($one)) {
+                        return false;
+                    }
+                }
+
+                if (!$y->equals($n_1)) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Logical Left Shift
+     *
+     * Shifts BigInteger's by $shift bits.
+     *
+     * @param int $shift
+     * @access private
+     */
+    function _lshift($shift)
+    {
+        if ($shift == 0) {
+            return;
+        }
+
+        $num_digits = (int) ($shift / self::$base);
+        $shift %= self::$base;
+        $shift = 1 << $shift;
+
+        $carry = 0;
+
+        for ($i = 0; $i < count($this->value); ++$i) {
+            $temp = $this->value[$i] * $shift + $carry;
+            $carry = self::$base === 26 ? intval($temp / 0x4000000) : ($temp >> 31);
+            $this->value[$i] = (int) ($temp - $carry * self::$baseFull);
+        }
+
+        if ($carry) {
+            $this->value[count($this->value)] = $carry;
+        }
+
+        while ($num_digits--) {
+            array_unshift($this->value, 0);
+        }
+    }
+
+    /**
+     * Logical Right Shift
+     *
+     * Shifts BigInteger's by $shift bits.
+     *
+     * @param int $shift
+     * @access private
+     */
+    function _rshift($shift)
+    {
+        if ($shift == 0) {
+            return;
+        }
+
+        $num_digits = (int) ($shift / self::$base);
+        $shift %= self::$base;
+        $carry_shift = self::$base - $shift;
+        $carry_mask = (1 << $shift) - 1;
+
+        if ($num_digits) {
+            $this->value = array_slice($this->value, $num_digits);
+        }
+
+        $carry = 0;
+
+        for ($i = count($this->value) - 1; $i >= 0; --$i) {
+            $temp = $this->value[$i] >> $shift | $carry;
+            $carry = ($this->value[$i] & $carry_mask) << $carry_shift;
+            $this->value[$i] = $temp;
+        }
+
+        $this->value = $this->_trim($this->value);
+    }
+
+    /**
+     * Normalize
+     *
+     * Removes leading zeros and truncates (if necessary) to maintain the appropriate precision
+     *
+     * @param \phpseclib\Math\BigInteger
+     * @return \phpseclib\Math\BigInteger
+     * @see self::_trim()
+     * @access private
+     */
+    function _normalize($result)
+    {
+        $result->precision = $this->precision;
+        $result->bitmask = $this->bitmask;
+
+        switch (MATH_BIGINTEGER_MODE) {
+            case self::MODE_GMP:
+                if ($this->bitmask !== false) {
+                    $result->value = gmp_and($result->value, $result->bitmask->value);
+                }
+
+                return $result;
+            case self::MODE_BCMATH:
+                if (!empty($result->bitmask->value)) {
+                    $result->value = bcmod($result->value, $result->bitmask->value);
+                }
+
+                return $result;
+        }
+
+        $value = &$result->value;
+
+        if (!count($value)) {
+            return $result;
+        }
+
+        $value = $this->_trim($value);
+
+        if (!empty($result->bitmask->value)) {
+            $length = min(count($value), count($this->bitmask->value));
+            $value = array_slice($value, 0, $length);
+
+            for ($i = 0; $i < $length; ++$i) {
+                $value[$i] = $value[$i] & $this->bitmask->value[$i];
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * Trim
+     *
+     * Removes leading zeros
+     *
+     * @param array $value
+     * @return \phpseclib\Math\BigInteger
+     * @access private
+     */
+    function _trim($value)
+    {
+        for ($i = count($value) - 1; $i >= 0; --$i) {
+            if ($value[$i]) {
+                break;
+            }
+            unset($value[$i]);
+        }
+
+        return $value;
+    }
+
+    /**
+     * Array Repeat
+     *
+     * @param $input Array
+     * @param $multiplier mixed
+     * @return array
+     * @access private
+     */
+    function _array_repeat($input, $multiplier)
+    {
+        return ($multiplier) ? array_fill(0, $multiplier, $input) : array();
+    }
+
+    /**
+     * Logical Left Shift
+     *
+     * Shifts binary strings $shift bits, essentially multiplying by 2**$shift.
+     *
+     * @param $x String
+     * @param $shift Integer
+     * @return string
+     * @access private
+     */
+    function _base256_lshift(&$x, $shift)
+    {
+        if ($shift == 0) {
+            return;
+        }
+
+        $num_bytes = $shift >> 3; // eg. floor($shift/8)
+        $shift &= 7; // eg. $shift % 8
+
+        $carry = 0;
+        for ($i = strlen($x) - 1; $i >= 0; --$i) {
+            $temp = ord($x[$i]) << $shift | $carry;
+            $x[$i] = chr($temp);
+            $carry = $temp >> 8;
+        }
+        $carry = ($carry != 0) ? chr($carry) : '';
+        $x = $carry . $x . str_repeat(chr(0), $num_bytes);
+    }
+
+    /**
+     * Logical Right Shift
+     *
+     * Shifts binary strings $shift bits, essentially dividing by 2**$shift and returning the remainder.
+     *
+     * @param $x String
+     * @param $shift Integer
+     * @return string
+     * @access private
+     */
+    function _base256_rshift(&$x, $shift)
+    {
+        if ($shift == 0) {
+            $x = ltrim($x, chr(0));
+            return '';
+        }
+
+        $num_bytes = $shift >> 3; // eg. floor($shift/8)
+        $shift &= 7; // eg. $shift % 8
+
+        $remainder = '';
+        if ($num_bytes) {
+            $start = $num_bytes > strlen($x) ? -strlen($x) : -$num_bytes;
+            $remainder = substr($x, $start);
+            $x = substr($x, 0, -$num_bytes);
+        }
+
+        $carry = 0;
+        $carry_shift = 8 - $shift;
+        for ($i = 0; $i < strlen($x); ++$i) {
+            $temp = (ord($x[$i]) >> $shift) | $carry;
+            $carry = (ord($x[$i]) << $carry_shift) & 0xFF;
+            $x[$i] = chr($temp);
+        }
+        $x = ltrim($x, chr(0));
+
+        $remainder = chr($carry >> $carry_shift) . $remainder;
+
+        return ltrim($remainder, chr(0));
+    }
+
+    // one quirk about how the following functions are implemented is that PHP defines N to be an unsigned long
+    // at 32-bits, while java's longs are 64-bits.
+
+    /**
+     * Converts 32-bit integers to bytes.
+     *
+     * @param int $x
+     * @return string
+     * @access private
+     */
+    function _int2bytes($x)
+    {
+        return ltrim(pack('N', $x), chr(0));
+    }
+
+    /**
+     * Converts bytes to 32-bit integers
+     *
+     * @param string $x
+     * @return int
+     * @access private
+     */
+    function _bytes2int($x)
+    {
+        $temp = unpack('Nint', str_pad($x, 4, chr(0), STR_PAD_LEFT));
+        return $temp['int'];
+    }
+
+    /**
+     * DER-encode an integer
+     *
+     * The ability to DER-encode integers is needed to create RSA public keys for use with OpenSSL
+     *
+     * @see self::modPow()
+     * @access private
+     * @param int $length
+     * @return string
+     */
+    function _encodeASN1Length($length)
+    {
+        if ($length <= 0x7F) {
+            return chr($length);
+        }
+
+        $temp = ltrim(pack('N', $length), chr(0));
+        return pack('Ca*', 0x80 | strlen($temp), $temp);
+    }
+
+    /**
+     * Single digit division
+     *
+     * Even if int64 is being used the division operator will return a float64 value
+     * if the dividend is not evenly divisible by the divisor. Since a float64 doesn't
+     * have the precision of int64 this is a problem so, when int64 is being used,
+     * we'll guarantee that the dividend is divisible by first subtracting the remainder.
+     *
+     * @access private
+     * @param int $x
+     * @param int $y
+     * @return int
+     */
+    function _safe_divide($x, $y)
+    {
+        if (self::$base === 26) {
+            return (int) ($x / $y);
+        }
+
+        // self::$base === 31
+        return ($x - ($x % $y)) / $y;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/bootstrap.php b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/bootstrap.php
new file mode 100644
index 0000000..0da0999
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/bootstrap.php
@@ -0,0 +1,16 @@
+<?php
+/**
+ * Bootstrapping File for phpseclib
+ *
+ * @license http://www.opensource.org/licenses/mit-license.html MIT License
+ */
+
+if (extension_loaded('mbstring')) {
+    // 2 - MB_OVERLOAD_STRING
+    if (ini_get('mbstring.func_overload') & 2) {
+        throw new \UnexpectedValueException(
+            'Overloading of string functions using mbstring.func_overload ' .
+            'is not supported by phpseclib.'
+        );
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/openssl.cnf b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/openssl.cnf
new file mode 100644
index 0000000..2b8b52f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/phpseclib/phpseclib/phpseclib/openssl.cnf
@@ -0,0 +1,6 @@
+# minimalist openssl.cnf file for use with phpseclib
+
+HOME			= .
+RANDFILE		= $ENV::HOME/.rnd
+
+[ v3_ca ]
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/cache/CHANGELOG.md b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/CHANGELOG.md
new file mode 100644
index 0000000..58ddab0
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/CHANGELOG.md
@@ -0,0 +1,16 @@
+# Changelog
+
+All notable changes to this project will be documented in this file, in reverse chronological order by release.
+
+## 1.0.1 - 2016-08-06
+
+### Fixed
+
+- Make spacing consistent in phpdoc annotations php-fig/cache#9 - chalasr
+- Fix grammar in phpdoc annotations php-fig/cache#10 - chalasr
+- Be more specific in docblocks that `getItems()` and `deleteItems()` take an array of strings (`string[]`) compared to just `array` php-fig/cache#8 - GrahamCampbell
+- For `expiresAt()` and `expiresAfter()` in CacheItemInterface fix docblock to specify null as a valid parameters as well as an implementation of DateTimeInterface php-fig/cache#7 - GrahamCampbell
+
+## 1.0.0 - 2015-12-11
+
+Initial stable release; reflects accepted PSR-6 specification
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/cache/LICENSE.txt b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/LICENSE.txt
new file mode 100644
index 0000000..b1c2c97
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/LICENSE.txt
@@ -0,0 +1,19 @@
+Copyright (c) 2015 PHP Framework Interoperability Group
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/cache/README.md b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/README.md
new file mode 100644
index 0000000..c8706ce
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/README.md
@@ -0,0 +1,9 @@
+PSR Cache
+=========
+
+This repository holds all interfaces defined by
+[PSR-6](http://www.php-fig.org/psr/psr-6/).
+
+Note that this is not a Cache implementation of its own. It is merely an
+interface that describes a Cache implementation. See the specification for more 
+details.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/cache/composer.json b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/composer.json
new file mode 100644
index 0000000..e828fec
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/composer.json
@@ -0,0 +1,25 @@
+{
+    "name": "psr/cache",
+    "description": "Common interface for caching libraries",
+    "keywords": ["psr", "psr-6", "cache"],
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "PHP-FIG",
+            "homepage": "http://www.php-fig.org/"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Psr\\Cache\\": "src/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0.x-dev"
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/CacheException.php b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/CacheException.php
new file mode 100644
index 0000000..e27f22f
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/CacheException.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Psr\Cache;
+
+/**
+ * Exception interface for all exceptions thrown by an Implementing Library.
+ */
+interface CacheException
+{
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/CacheItemInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/CacheItemInterface.php
new file mode 100644
index 0000000..63d05dd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/CacheItemInterface.php
@@ -0,0 +1,105 @@
+<?php
+
+namespace Psr\Cache;
+
+/**
+ * CacheItemInterface defines an interface for interacting with objects inside a cache.
+ *
+ * Each Item object MUST be associated with a specific key, which can be set
+ * according to the implementing system and is typically passed by the
+ * Cache\CacheItemPoolInterface object.
+ *
+ * The Cache\CacheItemInterface object encapsulates the storage and retrieval of
+ * cache items. Each Cache\CacheItemInterface is generated by a
+ * Cache\CacheItemPoolInterface object, which is responsible for any required
+ * setup as well as associating the object with a unique Key.
+ * Cache\CacheItemInterface objects MUST be able to store and retrieve any type
+ * of PHP value defined in the Data section of the specification.
+ *
+ * Calling Libraries MUST NOT instantiate Item objects themselves. They may only
+ * be requested from a Pool object via the getItem() method.  Calling Libraries
+ * SHOULD NOT assume that an Item created by one Implementing Library is
+ * compatible with a Pool from another Implementing Library.
+ */
+interface CacheItemInterface
+{
+    /**
+     * Returns the key for the current cache item.
+     *
+     * The key is loaded by the Implementing Library, but should be available to
+     * the higher level callers when needed.
+     *
+     * @return string
+     *   The key string for this cache item.
+     */
+    public function getKey();
+
+    /**
+     * Retrieves the value of the item from the cache associated with this object's key.
+     *
+     * The value returned must be identical to the value originally stored by set().
+     *
+     * If isHit() returns false, this method MUST return null. Note that null
+     * is a legitimate cached value, so the isHit() method SHOULD be used to
+     * differentiate between "null value was found" and "no value was found."
+     *
+     * @return mixed
+     *   The value corresponding to this cache item's key, or null if not found.
+     */
+    public function get();
+
+    /**
+     * Confirms if the cache item lookup resulted in a cache hit.
+     *
+     * Note: This method MUST NOT have a race condition between calling isHit()
+     * and calling get().
+     *
+     * @return bool
+     *   True if the request resulted in a cache hit. False otherwise.
+     */
+    public function isHit();
+
+    /**
+     * Sets the value represented by this cache item.
+     *
+     * The $value argument may be any item that can be serialized by PHP,
+     * although the method of serialization is left up to the Implementing
+     * Library.
+     *
+     * @param mixed $value
+     *   The serializable value to be stored.
+     *
+     * @return static
+     *   The invoked object.
+     */
+    public function set($value);
+
+    /**
+     * Sets the expiration time for this cache item.
+     *
+     * @param \DateTimeInterface|null $expiration
+     *   The point in time after which the item MUST be considered expired.
+     *   If null is passed explicitly, a default value MAY be used. If none is set,
+     *   the value should be stored permanently or for as long as the
+     *   implementation allows.
+     *
+     * @return static
+     *   The called object.
+     */
+    public function expiresAt($expiration);
+
+    /**
+     * Sets the expiration time for this cache item.
+     *
+     * @param int|\DateInterval|null $time
+     *   The period of time from the present after which the item MUST be considered
+     *   expired. An integer parameter is understood to be the time in seconds until
+     *   expiration. If null is passed explicitly, a default value MAY be used.
+     *   If none is set, the value should be stored permanently or for as long as the
+     *   implementation allows.
+     *
+     * @return static
+     *   The called object.
+     */
+    public function expiresAfter($time);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/CacheItemPoolInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/CacheItemPoolInterface.php
new file mode 100644
index 0000000..0351419
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/CacheItemPoolInterface.php
@@ -0,0 +1,138 @@
+<?php
+
+namespace Psr\Cache;
+
+/**
+ * CacheItemPoolInterface generates CacheItemInterface objects.
+ *
+ * The primary purpose of Cache\CacheItemPoolInterface is to accept a key from
+ * the Calling Library and return the associated Cache\CacheItemInterface object.
+ * It is also the primary point of interaction with the entire cache collection.
+ * All configuration and initialization of the Pool is left up to an
+ * Implementing Library.
+ */
+interface CacheItemPoolInterface
+{
+    /**
+     * Returns a Cache Item representing the specified key.
+     *
+     * This method must always return a CacheItemInterface object, even in case of
+     * a cache miss. It MUST NOT return null.
+     *
+     * @param string $key
+     *   The key for which to return the corresponding Cache Item.
+     *
+     * @throws InvalidArgumentException
+     *   If the $key string is not a legal value a \Psr\Cache\InvalidArgumentException
+     *   MUST be thrown.
+     *
+     * @return CacheItemInterface
+     *   The corresponding Cache Item.
+     */
+    public function getItem($key);
+
+    /**
+     * Returns a traversable set of cache items.
+     *
+     * @param string[] $keys
+     *   An indexed array of keys of items to retrieve.
+     *
+     * @throws InvalidArgumentException
+     *   If any of the keys in $keys are not a legal value a \Psr\Cache\InvalidArgumentException
+     *   MUST be thrown.
+     *
+     * @return array|\Traversable
+     *   A traversable collection of Cache Items keyed by the cache keys of
+     *   each item. A Cache item will be returned for each key, even if that
+     *   key is not found. However, if no keys are specified then an empty
+     *   traversable MUST be returned instead.
+     */
+    public function getItems(array $keys = array());
+
+    /**
+     * Confirms if the cache contains specified cache item.
+     *
+     * Note: This method MAY avoid retrieving the cached value for performance reasons.
+     * This could result in a race condition with CacheItemInterface::get(). To avoid
+     * such situation use CacheItemInterface::isHit() instead.
+     *
+     * @param string $key
+     *   The key for which to check existence.
+     *
+     * @throws InvalidArgumentException
+     *   If the $key string is not a legal value a \Psr\Cache\InvalidArgumentException
+     *   MUST be thrown.
+     *
+     * @return bool
+     *   True if item exists in the cache, false otherwise.
+     */
+    public function hasItem($key);
+
+    /**
+     * Deletes all items in the pool.
+     *
+     * @return bool
+     *   True if the pool was successfully cleared. False if there was an error.
+     */
+    public function clear();
+
+    /**
+     * Removes the item from the pool.
+     *
+     * @param string $key
+     *   The key to delete.
+     *
+     * @throws InvalidArgumentException
+     *   If the $key string is not a legal value a \Psr\Cache\InvalidArgumentException
+     *   MUST be thrown.
+     *
+     * @return bool
+     *   True if the item was successfully removed. False if there was an error.
+     */
+    public function deleteItem($key);
+
+    /**
+     * Removes multiple items from the pool.
+     *
+     * @param string[] $keys
+     *   An array of keys that should be removed from the pool.
+
+     * @throws InvalidArgumentException
+     *   If any of the keys in $keys are not a legal value a \Psr\Cache\InvalidArgumentException
+     *   MUST be thrown.
+     *
+     * @return bool
+     *   True if the items were successfully removed. False if there was an error.
+     */
+    public function deleteItems(array $keys);
+
+    /**
+     * Persists a cache item immediately.
+     *
+     * @param CacheItemInterface $item
+     *   The cache item to save.
+     *
+     * @return bool
+     *   True if the item was successfully persisted. False if there was an error.
+     */
+    public function save(CacheItemInterface $item);
+
+    /**
+     * Sets a cache item to be persisted later.
+     *
+     * @param CacheItemInterface $item
+     *   The cache item to save.
+     *
+     * @return bool
+     *   False if the item could not be queued or if a commit was attempted and failed. True otherwise.
+     */
+    public function saveDeferred(CacheItemInterface $item);
+
+    /**
+     * Persists any deferred cache items.
+     *
+     * @return bool
+     *   True if all not-yet-saved items were successfully saved or there were none. False otherwise.
+     */
+    public function commit();
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/InvalidArgumentException.php b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/InvalidArgumentException.php
new file mode 100644
index 0000000..be7c6fa
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/cache/src/InvalidArgumentException.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Psr\Cache;
+
+/**
+ * Exception interface for invalid cache arguments.
+ *
+ * Any time an invalid argument is passed into a method it must throw an
+ * exception class which implements Psr\Cache\InvalidArgumentException.
+ */
+interface InvalidArgumentException extends CacheException
+{
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/CHANGELOG.md b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/CHANGELOG.md
new file mode 100644
index 0000000..74b1ef9
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/CHANGELOG.md
@@ -0,0 +1,36 @@
+# Changelog
+
+All notable changes to this project will be documented in this file, in reverse chronological order by release.
+
+## 1.0.1 - 2016-08-06
+
+### Added
+
+- Nothing.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
+- Nothing.
+
+### Fixed
+
+- Updated all `@return self` annotation references in interfaces to use
+  `@return static`, which more closelly follows the semantics of the
+  specification.
+- Updated the `MessageInterface::getHeaders()` return annotation to use the
+  value `string[][]`, indicating the format is a nested array of strings.
+- Updated the `@link` annotation for `RequestInterface::withRequestTarget()`
+  to point to the correct section of RFC 7230.
+- Updated the `ServerRequestInterface::withUploadedFiles()` parameter annotation
+  to add the parameter name (`$uploadedFiles`).
+- Updated a `@throws` annotation for the `UploadedFileInterface::moveTo()`
+  method to correctly reference the method parameter (it was referencing an
+  incorrect parameter name previously).
+
+## 1.0.0 - 2016-05-18
+
+Initial stable release; reflects accepted PSR-7 specification.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/LICENSE
new file mode 100644
index 0000000..c2d8e45
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2014 PHP Framework Interoperability Group
+
+Permission is hereby granted, free of charge, to any person obtaining a copy 
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights 
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
+copies of the Software, and to permit persons to whom the Software is 
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in 
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/README.md b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/README.md
new file mode 100644
index 0000000..2818533
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/README.md
@@ -0,0 +1,13 @@
+PSR Http Message
+================
+
+This repository holds all interfaces/classes/traits related to
+[PSR-7](http://www.php-fig.org/psr/psr-7/).
+
+Note that this is not a HTTP message implementation of its own. It is merely an
+interface that describes a HTTP message. See the specification for more details.
+
+Usage
+-----
+
+We'll certainly need some stuff in here.
\ No newline at end of file
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/composer.json b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/composer.json
new file mode 100644
index 0000000..b0d2937
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/composer.json
@@ -0,0 +1,26 @@
+{
+    "name": "psr/http-message",
+    "description": "Common interface for HTTP messages",
+    "keywords": ["psr", "psr-7", "http", "http-message", "request", "response"],
+    "homepage": "https://github.com/php-fig/http-message",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "PHP-FIG",
+            "homepage": "http://www.php-fig.org/"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Psr\\Http\\Message\\": "src/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0.x-dev"
+        }
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/MessageInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/MessageInterface.php
new file mode 100644
index 0000000..dd46e5e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/MessageInterface.php
@@ -0,0 +1,187 @@
+<?php
+
+namespace Psr\Http\Message;
+
+/**
+ * HTTP messages consist of requests from a client to a server and responses
+ * from a server to a client. This interface defines the methods common to
+ * each.
+ *
+ * Messages are considered immutable; all methods that might change state MUST
+ * be implemented such that they retain the internal state of the current
+ * message and return an instance that contains the changed state.
+ *
+ * @link http://www.ietf.org/rfc/rfc7230.txt
+ * @link http://www.ietf.org/rfc/rfc7231.txt
+ */
+interface MessageInterface
+{
+    /**
+     * Retrieves the HTTP protocol version as a string.
+     *
+     * The string MUST contain only the HTTP version number (e.g., "1.1", "1.0").
+     *
+     * @return string HTTP protocol version.
+     */
+    public function getProtocolVersion();
+
+    /**
+     * Return an instance with the specified HTTP protocol version.
+     *
+     * The version string MUST contain only the HTTP version number (e.g.,
+     * "1.1", "1.0").
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * new protocol version.
+     *
+     * @param string $version HTTP protocol version
+     * @return static
+     */
+    public function withProtocolVersion($version);
+
+    /**
+     * Retrieves all message header values.
+     *
+     * The keys represent the header name as it will be sent over the wire, and
+     * each value is an array of strings associated with the header.
+     *
+     *     // Represent the headers as a string
+     *     foreach ($message->getHeaders() as $name => $values) {
+     *         echo $name . ": " . implode(", ", $values);
+     *     }
+     *
+     *     // Emit headers iteratively:
+     *     foreach ($message->getHeaders() as $name => $values) {
+     *         foreach ($values as $value) {
+     *             header(sprintf('%s: %s', $name, $value), false);
+     *         }
+     *     }
+     *
+     * While header names are not case-sensitive, getHeaders() will preserve the
+     * exact case in which headers were originally specified.
+     *
+     * @return string[][] Returns an associative array of the message's headers. Each
+     *     key MUST be a header name, and each value MUST be an array of strings
+     *     for that header.
+     */
+    public function getHeaders();
+
+    /**
+     * Checks if a header exists by the given case-insensitive name.
+     *
+     * @param string $name Case-insensitive header field name.
+     * @return bool Returns true if any header names match the given header
+     *     name using a case-insensitive string comparison. Returns false if
+     *     no matching header name is found in the message.
+     */
+    public function hasHeader($name);
+
+    /**
+     * Retrieves a message header value by the given case-insensitive name.
+     *
+     * This method returns an array of all the header values of the given
+     * case-insensitive header name.
+     *
+     * If the header does not appear in the message, this method MUST return an
+     * empty array.
+     *
+     * @param string $name Case-insensitive header field name.
+     * @return string[] An array of string values as provided for the given
+     *    header. If the header does not appear in the message, this method MUST
+     *    return an empty array.
+     */
+    public function getHeader($name);
+
+    /**
+     * Retrieves a comma-separated string of the values for a single header.
+     *
+     * This method returns all of the header values of the given
+     * case-insensitive header name as a string concatenated together using
+     * a comma.
+     *
+     * NOTE: Not all header values may be appropriately represented using
+     * comma concatenation. For such headers, use getHeader() instead
+     * and supply your own delimiter when concatenating.
+     *
+     * If the header does not appear in the message, this method MUST return
+     * an empty string.
+     *
+     * @param string $name Case-insensitive header field name.
+     * @return string A string of values as provided for the given header
+     *    concatenated together using a comma. If the header does not appear in
+     *    the message, this method MUST return an empty string.
+     */
+    public function getHeaderLine($name);
+
+    /**
+     * Return an instance with the provided value replacing the specified header.
+     *
+     * While header names are case-insensitive, the casing of the header will
+     * be preserved by this function, and returned from getHeaders().
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * new and/or updated header and value.
+     *
+     * @param string $name Case-insensitive header field name.
+     * @param string|string[] $value Header value(s).
+     * @return static
+     * @throws \InvalidArgumentException for invalid header names or values.
+     */
+    public function withHeader($name, $value);
+
+    /**
+     * Return an instance with the specified header appended with the given value.
+     *
+     * Existing values for the specified header will be maintained. The new
+     * value(s) will be appended to the existing list. If the header did not
+     * exist previously, it will be added.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * new header and/or value.
+     *
+     * @param string $name Case-insensitive header field name to add.
+     * @param string|string[] $value Header value(s).
+     * @return static
+     * @throws \InvalidArgumentException for invalid header names or values.
+     */
+    public function withAddedHeader($name, $value);
+
+    /**
+     * Return an instance without the specified header.
+     *
+     * Header resolution MUST be done without case-sensitivity.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that removes
+     * the named header.
+     *
+     * @param string $name Case-insensitive header field name to remove.
+     * @return static
+     */
+    public function withoutHeader($name);
+
+    /**
+     * Gets the body of the message.
+     *
+     * @return StreamInterface Returns the body as a stream.
+     */
+    public function getBody();
+
+    /**
+     * Return an instance with the specified message body.
+     *
+     * The body MUST be a StreamInterface object.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return a new instance that has the
+     * new body stream.
+     *
+     * @param StreamInterface $body Body.
+     * @return static
+     * @throws \InvalidArgumentException When the body is not valid.
+     */
+    public function withBody(StreamInterface $body);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/RequestInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/RequestInterface.php
new file mode 100644
index 0000000..a96d4fd
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/RequestInterface.php
@@ -0,0 +1,129 @@
+<?php
+
+namespace Psr\Http\Message;
+
+/**
+ * Representation of an outgoing, client-side request.
+ *
+ * Per the HTTP specification, this interface includes properties for
+ * each of the following:
+ *
+ * - Protocol version
+ * - HTTP method
+ * - URI
+ * - Headers
+ * - Message body
+ *
+ * During construction, implementations MUST attempt to set the Host header from
+ * a provided URI if no Host header is provided.
+ *
+ * Requests are considered immutable; all methods that might change state MUST
+ * be implemented such that they retain the internal state of the current
+ * message and return an instance that contains the changed state.
+ */
+interface RequestInterface extends MessageInterface
+{
+    /**
+     * Retrieves the message's request target.
+     *
+     * Retrieves the message's request-target either as it will appear (for
+     * clients), as it appeared at request (for servers), or as it was
+     * specified for the instance (see withRequestTarget()).
+     *
+     * In most cases, this will be the origin-form of the composed URI,
+     * unless a value was provided to the concrete implementation (see
+     * withRequestTarget() below).
+     *
+     * If no URI is available, and no request-target has been specifically
+     * provided, this method MUST return the string "/".
+     *
+     * @return string
+     */
+    public function getRequestTarget();
+
+    /**
+     * Return an instance with the specific request-target.
+     *
+     * If the request needs a non-origin-form request-target — e.g., for
+     * specifying an absolute-form, authority-form, or asterisk-form —
+     * this method may be used to create an instance with the specified
+     * request-target, verbatim.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * changed request target.
+     *
+     * @link http://tools.ietf.org/html/rfc7230#section-5.3 (for the various
+     *     request-target forms allowed in request messages)
+     * @param mixed $requestTarget
+     * @return static
+     */
+    public function withRequestTarget($requestTarget);
+
+    /**
+     * Retrieves the HTTP method of the request.
+     *
+     * @return string Returns the request method.
+     */
+    public function getMethod();
+
+    /**
+     * Return an instance with the provided HTTP method.
+     *
+     * While HTTP method names are typically all uppercase characters, HTTP
+     * method names are case-sensitive and thus implementations SHOULD NOT
+     * modify the given string.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * changed request method.
+     *
+     * @param string $method Case-sensitive method.
+     * @return static
+     * @throws \InvalidArgumentException for invalid HTTP methods.
+     */
+    public function withMethod($method);
+
+    /**
+     * Retrieves the URI instance.
+     *
+     * This method MUST return a UriInterface instance.
+     *
+     * @link http://tools.ietf.org/html/rfc3986#section-4.3
+     * @return UriInterface Returns a UriInterface instance
+     *     representing the URI of the request.
+     */
+    public function getUri();
+
+    /**
+     * Returns an instance with the provided URI.
+     *
+     * This method MUST update the Host header of the returned request by
+     * default if the URI contains a host component. If the URI does not
+     * contain a host component, any pre-existing Host header MUST be carried
+     * over to the returned request.
+     *
+     * You can opt-in to preserving the original state of the Host header by
+     * setting `$preserveHost` to `true`. When `$preserveHost` is set to
+     * `true`, this method interacts with the Host header in the following ways:
+     *
+     * - If the Host header is missing or empty, and the new URI contains
+     *   a host component, this method MUST update the Host header in the returned
+     *   request.
+     * - If the Host header is missing or empty, and the new URI does not contain a
+     *   host component, this method MUST NOT update the Host header in the returned
+     *   request.
+     * - If a Host header is present and non-empty, this method MUST NOT update
+     *   the Host header in the returned request.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * new UriInterface instance.
+     *
+     * @link http://tools.ietf.org/html/rfc3986#section-4.3
+     * @param UriInterface $uri New request URI to use.
+     * @param bool $preserveHost Preserve the original state of the Host header.
+     * @return static
+     */
+    public function withUri(UriInterface $uri, $preserveHost = false);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/ResponseInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/ResponseInterface.php
new file mode 100644
index 0000000..c306514
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/ResponseInterface.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Psr\Http\Message;
+
+/**
+ * Representation of an outgoing, server-side response.
+ *
+ * Per the HTTP specification, this interface includes properties for
+ * each of the following:
+ *
+ * - Protocol version
+ * - Status code and reason phrase
+ * - Headers
+ * - Message body
+ *
+ * Responses are considered immutable; all methods that might change state MUST
+ * be implemented such that they retain the internal state of the current
+ * message and return an instance that contains the changed state.
+ */
+interface ResponseInterface extends MessageInterface
+{
+    /**
+     * Gets the response status code.
+     *
+     * The status code is a 3-digit integer result code of the server's attempt
+     * to understand and satisfy the request.
+     *
+     * @return int Status code.
+     */
+    public function getStatusCode();
+
+    /**
+     * Return an instance with the specified status code and, optionally, reason phrase.
+     *
+     * If no reason phrase is specified, implementations MAY choose to default
+     * to the RFC 7231 or IANA recommended reason phrase for the response's
+     * status code.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * updated status and reason phrase.
+     *
+     * @link http://tools.ietf.org/html/rfc7231#section-6
+     * @link http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
+     * @param int $code The 3-digit integer result code to set.
+     * @param string $reasonPhrase The reason phrase to use with the
+     *     provided status code; if none is provided, implementations MAY
+     *     use the defaults as suggested in the HTTP specification.
+     * @return static
+     * @throws \InvalidArgumentException For invalid status code arguments.
+     */
+    public function withStatus($code, $reasonPhrase = '');
+
+    /**
+     * Gets the response reason phrase associated with the status code.
+     *
+     * Because a reason phrase is not a required element in a response
+     * status line, the reason phrase value MAY be null. Implementations MAY
+     * choose to return the default RFC 7231 recommended reason phrase (or those
+     * listed in the IANA HTTP Status Code Registry) for the response's
+     * status code.
+     *
+     * @link http://tools.ietf.org/html/rfc7231#section-6
+     * @link http://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
+     * @return string Reason phrase; must return an empty string if none present.
+     */
+    public function getReasonPhrase();
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/ServerRequestInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/ServerRequestInterface.php
new file mode 100644
index 0000000..0251234
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/ServerRequestInterface.php
@@ -0,0 +1,261 @@
+<?php
+
+namespace Psr\Http\Message;
+
+/**
+ * Representation of an incoming, server-side HTTP request.
+ *
+ * Per the HTTP specification, this interface includes properties for
+ * each of the following:
+ *
+ * - Protocol version
+ * - HTTP method
+ * - URI
+ * - Headers
+ * - Message body
+ *
+ * Additionally, it encapsulates all data as it has arrived to the
+ * application from the CGI and/or PHP environment, including:
+ *
+ * - The values represented in $_SERVER.
+ * - Any cookies provided (generally via $_COOKIE)
+ * - Query string arguments (generally via $_GET, or as parsed via parse_str())
+ * - Upload files, if any (as represented by $_FILES)
+ * - Deserialized body parameters (generally from $_POST)
+ *
+ * $_SERVER values MUST be treated as immutable, as they represent application
+ * state at the time of request; as such, no methods are provided to allow
+ * modification of those values. The other values provide such methods, as they
+ * can be restored from $_SERVER or the request body, and may need treatment
+ * during the application (e.g., body parameters may be deserialized based on
+ * content type).
+ *
+ * Additionally, this interface recognizes the utility of introspecting a
+ * request to derive and match additional parameters (e.g., via URI path
+ * matching, decrypting cookie values, deserializing non-form-encoded body
+ * content, matching authorization headers to users, etc). These parameters
+ * are stored in an "attributes" property.
+ *
+ * Requests are considered immutable; all methods that might change state MUST
+ * be implemented such that they retain the internal state of the current
+ * message and return an instance that contains the changed state.
+ */
+interface ServerRequestInterface extends RequestInterface
+{
+    /**
+     * Retrieve server parameters.
+     *
+     * Retrieves data related to the incoming request environment,
+     * typically derived from PHP's $_SERVER superglobal. The data IS NOT
+     * REQUIRED to originate from $_SERVER.
+     *
+     * @return array
+     */
+    public function getServerParams();
+
+    /**
+     * Retrieve cookies.
+     *
+     * Retrieves cookies sent by the client to the server.
+     *
+     * The data MUST be compatible with the structure of the $_COOKIE
+     * superglobal.
+     *
+     * @return array
+     */
+    public function getCookieParams();
+
+    /**
+     * Return an instance with the specified cookies.
+     *
+     * The data IS NOT REQUIRED to come from the $_COOKIE superglobal, but MUST
+     * be compatible with the structure of $_COOKIE. Typically, this data will
+     * be injected at instantiation.
+     *
+     * This method MUST NOT update the related Cookie header of the request
+     * instance, nor related values in the server params.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * updated cookie values.
+     *
+     * @param array $cookies Array of key/value pairs representing cookies.
+     * @return static
+     */
+    public function withCookieParams(array $cookies);
+
+    /**
+     * Retrieve query string arguments.
+     *
+     * Retrieves the deserialized query string arguments, if any.
+     *
+     * Note: the query params might not be in sync with the URI or server
+     * params. If you need to ensure you are only getting the original
+     * values, you may need to parse the query string from `getUri()->getQuery()`
+     * or from the `QUERY_STRING` server param.
+     *
+     * @return array
+     */
+    public function getQueryParams();
+
+    /**
+     * Return an instance with the specified query string arguments.
+     *
+     * These values SHOULD remain immutable over the course of the incoming
+     * request. They MAY be injected during instantiation, such as from PHP's
+     * $_GET superglobal, or MAY be derived from some other value such as the
+     * URI. In cases where the arguments are parsed from the URI, the data
+     * MUST be compatible with what PHP's parse_str() would return for
+     * purposes of how duplicate query parameters are handled, and how nested
+     * sets are handled.
+     *
+     * Setting query string arguments MUST NOT change the URI stored by the
+     * request, nor the values in the server params.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * updated query string arguments.
+     *
+     * @param array $query Array of query string arguments, typically from
+     *     $_GET.
+     * @return static
+     */
+    public function withQueryParams(array $query);
+
+    /**
+     * Retrieve normalized file upload data.
+     *
+     * This method returns upload metadata in a normalized tree, with each leaf
+     * an instance of Psr\Http\Message\UploadedFileInterface.
+     *
+     * These values MAY be prepared from $_FILES or the message body during
+     * instantiation, or MAY be injected via withUploadedFiles().
+     *
+     * @return array An array tree of UploadedFileInterface instances; an empty
+     *     array MUST be returned if no data is present.
+     */
+    public function getUploadedFiles();
+
+    /**
+     * Create a new instance with the specified uploaded files.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * updated body parameters.
+     *
+     * @param array $uploadedFiles An array tree of UploadedFileInterface instances.
+     * @return static
+     * @throws \InvalidArgumentException if an invalid structure is provided.
+     */
+    public function withUploadedFiles(array $uploadedFiles);
+
+    /**
+     * Retrieve any parameters provided in the request body.
+     *
+     * If the request Content-Type is either application/x-www-form-urlencoded
+     * or multipart/form-data, and the request method is POST, this method MUST
+     * return the contents of $_POST.
+     *
+     * Otherwise, this method may return any results of deserializing
+     * the request body content; as parsing returns structured content, the
+     * potential types MUST be arrays or objects only. A null value indicates
+     * the absence of body content.
+     *
+     * @return null|array|object The deserialized body parameters, if any.
+     *     These will typically be an array or object.
+     */
+    public function getParsedBody();
+
+    /**
+     * Return an instance with the specified body parameters.
+     *
+     * These MAY be injected during instantiation.
+     *
+     * If the request Content-Type is either application/x-www-form-urlencoded
+     * or multipart/form-data, and the request method is POST, use this method
+     * ONLY to inject the contents of $_POST.
+     *
+     * The data IS NOT REQUIRED to come from $_POST, but MUST be the results of
+     * deserializing the request body content. Deserialization/parsing returns
+     * structured data, and, as such, this method ONLY accepts arrays or objects,
+     * or a null value if nothing was available to parse.
+     *
+     * As an example, if content negotiation determines that the request data
+     * is a JSON payload, this method could be used to create a request
+     * instance with the deserialized parameters.
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * updated body parameters.
+     *
+     * @param null|array|object $data The deserialized body data. This will
+     *     typically be in an array or object.
+     * @return static
+     * @throws \InvalidArgumentException if an unsupported argument type is
+     *     provided.
+     */
+    public function withParsedBody($data);
+
+    /**
+     * Retrieve attributes derived from the request.
+     *
+     * The request "attributes" may be used to allow injection of any
+     * parameters derived from the request: e.g., the results of path
+     * match operations; the results of decrypting cookies; the results of
+     * deserializing non-form-encoded message bodies; etc. Attributes
+     * will be application and request specific, and CAN be mutable.
+     *
+     * @return array Attributes derived from the request.
+     */
+    public function getAttributes();
+
+    /**
+     * Retrieve a single derived request attribute.
+     *
+     * Retrieves a single derived request attribute as described in
+     * getAttributes(). If the attribute has not been previously set, returns
+     * the default value as provided.
+     *
+     * This method obviates the need for a hasAttribute() method, as it allows
+     * specifying a default value to return if the attribute is not found.
+     *
+     * @see getAttributes()
+     * @param string $name The attribute name.
+     * @param mixed $default Default value to return if the attribute does not exist.
+     * @return mixed
+     */
+    public function getAttribute($name, $default = null);
+
+    /**
+     * Return an instance with the specified derived request attribute.
+     *
+     * This method allows setting a single derived request attribute as
+     * described in getAttributes().
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that has the
+     * updated attribute.
+     *
+     * @see getAttributes()
+     * @param string $name The attribute name.
+     * @param mixed $value The value of the attribute.
+     * @return static
+     */
+    public function withAttribute($name, $value);
+
+    /**
+     * Return an instance that removes the specified derived request attribute.
+     *
+     * This method allows removing a single derived request attribute as
+     * described in getAttributes().
+     *
+     * This method MUST be implemented in such a way as to retain the
+     * immutability of the message, and MUST return an instance that removes
+     * the attribute.
+     *
+     * @see getAttributes()
+     * @param string $name The attribute name.
+     * @return static
+     */
+    public function withoutAttribute($name);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/StreamInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/StreamInterface.php
new file mode 100644
index 0000000..f68f391
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/StreamInterface.php
@@ -0,0 +1,158 @@
+<?php
+
+namespace Psr\Http\Message;
+
+/**
+ * Describes a data stream.
+ *
+ * Typically, an instance will wrap a PHP stream; this interface provides
+ * a wrapper around the most common operations, including serialization of
+ * the entire stream to a string.
+ */
+interface StreamInterface
+{
+    /**
+     * Reads all data from the stream into a string, from the beginning to end.
+     *
+     * This method MUST attempt to seek to the beginning of the stream before
+     * reading data and read the stream until the end is reached.
+     *
+     * Warning: This could attempt to load a large amount of data into memory.
+     *
+     * This method MUST NOT raise an exception in order to conform with PHP's
+     * string casting operations.
+     *
+     * @see http://php.net/manual/en/language.oop5.magic.php#object.tostring
+     * @return string
+     */
+    public function __toString();
+
+    /**
+     * Closes the stream and any underlying resources.
+     *
+     * @return void
+     */
+    public function close();
+
+    /**
+     * Separates any underlying resources from the stream.
+     *
+     * After the stream has been detached, the stream is in an unusable state.
+     *
+     * @return resource|null Underlying PHP stream, if any
+     */
+    public function detach();
+
+    /**
+     * Get the size of the stream if known.
+     *
+     * @return int|null Returns the size in bytes if known, or null if unknown.
+     */
+    public function getSize();
+
+    /**
+     * Returns the current position of the file read/write pointer
+     *
+     * @return int Position of the file pointer
+     * @throws \RuntimeException on error.
+     */
+    public function tell();
+
+    /**
+     * Returns true if the stream is at the end of the stream.
+     *
+     * @return bool
+     */
+    public function eof();
+
+    /**
+     * Returns whether or not the stream is seekable.
+     *
+     * @return bool
+     */
+    public function isSeekable();
+
+    /**
+     * Seek to a position in the stream.
+     *
+     * @link http://www.php.net/manual/en/function.fseek.php
+     * @param int $offset Stream offset
+     * @param int $whence Specifies how the cursor position will be calculated
+     *     based on the seek offset. Valid values are identical to the built-in
+     *     PHP $whence values for `fseek()`.  SEEK_SET: Set position equal to
+     *     offset bytes SEEK_CUR: Set position to current location plus offset
+     *     SEEK_END: Set position to end-of-stream plus offset.
+     * @throws \RuntimeException on failure.
+     */
+    public function seek($offset, $whence = SEEK_SET);
+
+    /**
+     * Seek to the beginning of the stream.
+     *
+     * If the stream is not seekable, this method will raise an exception;
+     * otherwise, it will perform a seek(0).
+     *
+     * @see seek()
+     * @link http://www.php.net/manual/en/function.fseek.php
+     * @throws \RuntimeException on failure.
+     */
+    public function rewind();
+
+    /**
+     * Returns whether or not the stream is writable.
+     *
+     * @return bool
+     */
+    public function isWritable();
+
+    /**
+     * Write data to the stream.
+     *
+     * @param string $string The string that is to be written.
+     * @return int Returns the number of bytes written to the stream.
+     * @throws \RuntimeException on failure.
+     */
+    public function write($string);
+
+    /**
+     * Returns whether or not the stream is readable.
+     *
+     * @return bool
+     */
+    public function isReadable();
+
+    /**
+     * Read data from the stream.
+     *
+     * @param int $length Read up to $length bytes from the object and return
+     *     them. Fewer than $length bytes may be returned if underlying stream
+     *     call returns fewer bytes.
+     * @return string Returns the data read from the stream, or an empty string
+     *     if no bytes are available.
+     * @throws \RuntimeException if an error occurs.
+     */
+    public function read($length);
+
+    /**
+     * Returns the remaining contents in a string
+     *
+     * @return string
+     * @throws \RuntimeException if unable to read or an error occurs while
+     *     reading.
+     */
+    public function getContents();
+
+    /**
+     * Get stream metadata as an associative array or retrieve a specific key.
+     *
+     * The keys returned are identical to the keys returned from PHP's
+     * stream_get_meta_data() function.
+     *
+     * @link http://php.net/manual/en/function.stream-get-meta-data.php
+     * @param string $key Specific metadata to retrieve.
+     * @return array|mixed|null Returns an associative array if no key is
+     *     provided. Returns a specific key value if a key is provided and the
+     *     value is found, or null if the key is not found.
+     */
+    public function getMetadata($key = null);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/UploadedFileInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/UploadedFileInterface.php
new file mode 100644
index 0000000..f8a6901
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/UploadedFileInterface.php
@@ -0,0 +1,123 @@
+<?php
+
+namespace Psr\Http\Message;
+
+/**
+ * Value object representing a file uploaded through an HTTP request.
+ *
+ * Instances of this interface are considered immutable; all methods that
+ * might change state MUST be implemented such that they retain the internal
+ * state of the current instance and return an instance that contains the
+ * changed state.
+ */
+interface UploadedFileInterface
+{
+    /**
+     * Retrieve a stream representing the uploaded file.
+     *
+     * This method MUST return a StreamInterface instance, representing the
+     * uploaded file. The purpose of this method is to allow utilizing native PHP
+     * stream functionality to manipulate the file upload, such as
+     * stream_copy_to_stream() (though the result will need to be decorated in a
+     * native PHP stream wrapper to work with such functions).
+     *
+     * If the moveTo() method has been called previously, this method MUST raise
+     * an exception.
+     *
+     * @return StreamInterface Stream representation of the uploaded file.
+     * @throws \RuntimeException in cases when no stream is available or can be
+     *     created.
+     */
+    public function getStream();
+
+    /**
+     * Move the uploaded file to a new location.
+     *
+     * Use this method as an alternative to move_uploaded_file(). This method is
+     * guaranteed to work in both SAPI and non-SAPI environments.
+     * Implementations must determine which environment they are in, and use the
+     * appropriate method (move_uploaded_file(), rename(), or a stream
+     * operation) to perform the operation.
+     *
+     * $targetPath may be an absolute path, or a relative path. If it is a
+     * relative path, resolution should be the same as used by PHP's rename()
+     * function.
+     *
+     * The original file or stream MUST be removed on completion.
+     *
+     * If this method is called more than once, any subsequent calls MUST raise
+     * an exception.
+     *
+     * When used in an SAPI environment where $_FILES is populated, when writing
+     * files via moveTo(), is_uploaded_file() and move_uploaded_file() SHOULD be
+     * used to ensure permissions and upload status are verified correctly.
+     *
+     * If you wish to move to a stream, use getStream(), as SAPI operations
+     * cannot guarantee writing to stream destinations.
+     *
+     * @see http://php.net/is_uploaded_file
+     * @see http://php.net/move_uploaded_file
+     * @param string $targetPath Path to which to move the uploaded file.
+     * @throws \InvalidArgumentException if the $targetPath specified is invalid.
+     * @throws \RuntimeException on any error during the move operation, or on
+     *     the second or subsequent call to the method.
+     */
+    public function moveTo($targetPath);
+    
+    /**
+     * Retrieve the file size.
+     *
+     * Implementations SHOULD return the value stored in the "size" key of
+     * the file in the $_FILES array if available, as PHP calculates this based
+     * on the actual size transmitted.
+     *
+     * @return int|null The file size in bytes or null if unknown.
+     */
+    public function getSize();
+    
+    /**
+     * Retrieve the error associated with the uploaded file.
+     *
+     * The return value MUST be one of PHP's UPLOAD_ERR_XXX constants.
+     *
+     * If the file was uploaded successfully, this method MUST return
+     * UPLOAD_ERR_OK.
+     *
+     * Implementations SHOULD return the value stored in the "error" key of
+     * the file in the $_FILES array.
+     *
+     * @see http://php.net/manual/en/features.file-upload.errors.php
+     * @return int One of PHP's UPLOAD_ERR_XXX constants.
+     */
+    public function getError();
+    
+    /**
+     * Retrieve the filename sent by the client.
+     *
+     * Do not trust the value returned by this method. A client could send
+     * a malicious filename with the intention to corrupt or hack your
+     * application.
+     *
+     * Implementations SHOULD return the value stored in the "name" key of
+     * the file in the $_FILES array.
+     *
+     * @return string|null The filename sent by the client or null if none
+     *     was provided.
+     */
+    public function getClientFilename();
+    
+    /**
+     * Retrieve the media type sent by the client.
+     *
+     * Do not trust the value returned by this method. A client could send
+     * a malicious media type with the intention to corrupt or hack your
+     * application.
+     *
+     * Implementations SHOULD return the value stored in the "type" key of
+     * the file in the $_FILES array.
+     *
+     * @return string|null The media type sent by the client or null if none
+     *     was provided.
+     */
+    public function getClientMediaType();
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/UriInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/UriInterface.php
new file mode 100644
index 0000000..9d7ab9e
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/http-message/src/UriInterface.php
@@ -0,0 +1,323 @@
+<?php
+namespace Psr\Http\Message;
+
+/**
+ * Value object representing a URI.
+ *
+ * This interface is meant to represent URIs according to RFC 3986 and to
+ * provide methods for most common operations. Additional functionality for
+ * working with URIs can be provided on top of the interface or externally.
+ * Its primary use is for HTTP requests, but may also be used in other
+ * contexts.
+ *
+ * Instances of this interface are considered immutable; all methods that
+ * might change state MUST be implemented such that they retain the internal
+ * state of the current instance and return an instance that contains the
+ * changed state.
+ *
+ * Typically the Host header will be also be present in the request message.
+ * For server-side requests, the scheme will typically be discoverable in the
+ * server parameters.
+ *
+ * @link http://tools.ietf.org/html/rfc3986 (the URI specification)
+ */
+interface UriInterface
+{
+    /**
+     * Retrieve the scheme component of the URI.
+     *
+     * If no scheme is present, this method MUST return an empty string.
+     *
+     * The value returned MUST be normalized to lowercase, per RFC 3986
+     * Section 3.1.
+     *
+     * The trailing ":" character is not part of the scheme and MUST NOT be
+     * added.
+     *
+     * @see https://tools.ietf.org/html/rfc3986#section-3.1
+     * @return string The URI scheme.
+     */
+    public function getScheme();
+
+    /**
+     * Retrieve the authority component of the URI.
+     *
+     * If no authority information is present, this method MUST return an empty
+     * string.
+     *
+     * The authority syntax of the URI is:
+     *
+     * <pre>
+     * [user-info@]host[:port]
+     * </pre>
+     *
+     * If the port component is not set or is the standard port for the current
+     * scheme, it SHOULD NOT be included.
+     *
+     * @see https://tools.ietf.org/html/rfc3986#section-3.2
+     * @return string The URI authority, in "[user-info@]host[:port]" format.
+     */
+    public function getAuthority();
+
+    /**
+     * Retrieve the user information component of the URI.
+     *
+     * If no user information is present, this method MUST return an empty
+     * string.
+     *
+     * If a user is present in the URI, this will return that value;
+     * additionally, if the password is also present, it will be appended to the
+     * user value, with a colon (":") separating the values.
+     *
+     * The trailing "@" character is not part of the user information and MUST
+     * NOT be added.
+     *
+     * @return string The URI user information, in "username[:password]" format.
+     */
+    public function getUserInfo();
+
+    /**
+     * Retrieve the host component of the URI.
+     *
+     * If no host is present, this method MUST return an empty string.
+     *
+     * The value returned MUST be normalized to lowercase, per RFC 3986
+     * Section 3.2.2.
+     *
+     * @see http://tools.ietf.org/html/rfc3986#section-3.2.2
+     * @return string The URI host.
+     */
+    public function getHost();
+
+    /**
+     * Retrieve the port component of the URI.
+     *
+     * If a port is present, and it is non-standard for the current scheme,
+     * this method MUST return it as an integer. If the port is the standard port
+     * used with the current scheme, this method SHOULD return null.
+     *
+     * If no port is present, and no scheme is present, this method MUST return
+     * a null value.
+     *
+     * If no port is present, but a scheme is present, this method MAY return
+     * the standard port for that scheme, but SHOULD return null.
+     *
+     * @return null|int The URI port.
+     */
+    public function getPort();
+
+    /**
+     * Retrieve the path component of the URI.
+     *
+     * The path can either be empty or absolute (starting with a slash) or
+     * rootless (not starting with a slash). Implementations MUST support all
+     * three syntaxes.
+     *
+     * Normally, the empty path "" and absolute path "/" are considered equal as
+     * defined in RFC 7230 Section 2.7.3. But this method MUST NOT automatically
+     * do this normalization because in contexts with a trimmed base path, e.g.
+     * the front controller, this difference becomes significant. It's the task
+     * of the user to handle both "" and "/".
+     *
+     * The value returned MUST be percent-encoded, but MUST NOT double-encode
+     * any characters. To determine what characters to encode, please refer to
+     * RFC 3986, Sections 2 and 3.3.
+     *
+     * As an example, if the value should include a slash ("/") not intended as
+     * delimiter between path segments, that value MUST be passed in encoded
+     * form (e.g., "%2F") to the instance.
+     *
+     * @see https://tools.ietf.org/html/rfc3986#section-2
+     * @see https://tools.ietf.org/html/rfc3986#section-3.3
+     * @return string The URI path.
+     */
+    public function getPath();
+
+    /**
+     * Retrieve the query string of the URI.
+     *
+     * If no query string is present, this method MUST return an empty string.
+     *
+     * The leading "?" character is not part of the query and MUST NOT be
+     * added.
+     *
+     * The value returned MUST be percent-encoded, but MUST NOT double-encode
+     * any characters. To determine what characters to encode, please refer to
+     * RFC 3986, Sections 2 and 3.4.
+     *
+     * As an example, if a value in a key/value pair of the query string should
+     * include an ampersand ("&") not intended as a delimiter between values,
+     * that value MUST be passed in encoded form (e.g., "%26") to the instance.
+     *
+     * @see https://tools.ietf.org/html/rfc3986#section-2
+     * @see https://tools.ietf.org/html/rfc3986#section-3.4
+     * @return string The URI query string.
+     */
+    public function getQuery();
+
+    /**
+     * Retrieve the fragment component of the URI.
+     *
+     * If no fragment is present, this method MUST return an empty string.
+     *
+     * The leading "#" character is not part of the fragment and MUST NOT be
+     * added.
+     *
+     * The value returned MUST be percent-encoded, but MUST NOT double-encode
+     * any characters. To determine what characters to encode, please refer to
+     * RFC 3986, Sections 2 and 3.5.
+     *
+     * @see https://tools.ietf.org/html/rfc3986#section-2
+     * @see https://tools.ietf.org/html/rfc3986#section-3.5
+     * @return string The URI fragment.
+     */
+    public function getFragment();
+
+    /**
+     * Return an instance with the specified scheme.
+     *
+     * This method MUST retain the state of the current instance, and return
+     * an instance that contains the specified scheme.
+     *
+     * Implementations MUST support the schemes "http" and "https" case
+     * insensitively, and MAY accommodate other schemes if required.
+     *
+     * An empty scheme is equivalent to removing the scheme.
+     *
+     * @param string $scheme The scheme to use with the new instance.
+     * @return static A new instance with the specified scheme.
+     * @throws \InvalidArgumentException for invalid or unsupported schemes.
+     */
+    public function withScheme($scheme);
+
+    /**
+     * Return an instance with the specified user information.
+     *
+     * This method MUST retain the state of the current instance, and return
+     * an instance that contains the specified user information.
+     *
+     * Password is optional, but the user information MUST include the
+     * user; an empty string for the user is equivalent to removing user
+     * information.
+     *
+     * @param string $user The user name to use for authority.
+     * @param null|string $password The password associated with $user.
+     * @return static A new instance with the specified user information.
+     */
+    public function withUserInfo($user, $password = null);
+
+    /**
+     * Return an instance with the specified host.
+     *
+     * This method MUST retain the state of the current instance, and return
+     * an instance that contains the specified host.
+     *
+     * An empty host value is equivalent to removing the host.
+     *
+     * @param string $host The hostname to use with the new instance.
+     * @return static A new instance with the specified host.
+     * @throws \InvalidArgumentException for invalid hostnames.
+     */
+    public function withHost($host);
+
+    /**
+     * Return an instance with the specified port.
+     *
+     * This method MUST retain the state of the current instance, and return
+     * an instance that contains the specified port.
+     *
+     * Implementations MUST raise an exception for ports outside the
+     * established TCP and UDP port ranges.
+     *
+     * A null value provided for the port is equivalent to removing the port
+     * information.
+     *
+     * @param null|int $port The port to use with the new instance; a null value
+     *     removes the port information.
+     * @return static A new instance with the specified port.
+     * @throws \InvalidArgumentException for invalid ports.
+     */
+    public function withPort($port);
+
+    /**
+     * Return an instance with the specified path.
+     *
+     * This method MUST retain the state of the current instance, and return
+     * an instance that contains the specified path.
+     *
+     * The path can either be empty or absolute (starting with a slash) or
+     * rootless (not starting with a slash). Implementations MUST support all
+     * three syntaxes.
+     *
+     * If the path is intended to be domain-relative rather than path relative then
+     * it must begin with a slash ("/"). Paths not starting with a slash ("/")
+     * are assumed to be relative to some base path known to the application or
+     * consumer.
+     *
+     * Users can provide both encoded and decoded path characters.
+     * Implementations ensure the correct encoding as outlined in getPath().
+     *
+     * @param string $path The path to use with the new instance.
+     * @return static A new instance with the specified path.
+     * @throws \InvalidArgumentException for invalid paths.
+     */
+    public function withPath($path);
+
+    /**
+     * Return an instance with the specified query string.
+     *
+     * This method MUST retain the state of the current instance, and return
+     * an instance that contains the specified query string.
+     *
+     * Users can provide both encoded and decoded query characters.
+     * Implementations ensure the correct encoding as outlined in getQuery().
+     *
+     * An empty query string value is equivalent to removing the query string.
+     *
+     * @param string $query The query string to use with the new instance.
+     * @return static A new instance with the specified query string.
+     * @throws \InvalidArgumentException for invalid query strings.
+     */
+    public function withQuery($query);
+
+    /**
+     * Return an instance with the specified URI fragment.
+     *
+     * This method MUST retain the state of the current instance, and return
+     * an instance that contains the specified URI fragment.
+     *
+     * Users can provide both encoded and decoded fragment characters.
+     * Implementations ensure the correct encoding as outlined in getFragment().
+     *
+     * An empty fragment value is equivalent to removing the fragment.
+     *
+     * @param string $fragment The fragment to use with the new instance.
+     * @return static A new instance with the specified fragment.
+     */
+    public function withFragment($fragment);
+
+    /**
+     * Return the string representation as a URI reference.
+     *
+     * Depending on which components of the URI are present, the resulting
+     * string is either a full URI or relative reference according to RFC 3986,
+     * Section 4.1. The method concatenates the various components of the URI,
+     * using the appropriate delimiters:
+     *
+     * - If a scheme is present, it MUST be suffixed by ":".
+     * - If an authority is present, it MUST be prefixed by "//".
+     * - The path can be concatenated without delimiters. But there are two
+     *   cases where the path has to be adjusted to make the URI reference
+     *   valid as PHP does not allow to throw an exception in __toString():
+     *     - If the path is rootless and an authority is present, the path MUST
+     *       be prefixed by "/".
+     *     - If the path is starting with more than one "/" and no authority is
+     *       present, the starting slashes MUST be reduced to one.
+     * - If a query is present, it MUST be prefixed by "?".
+     * - If a fragment is present, it MUST be prefixed by "#".
+     *
+     * @see http://tools.ietf.org/html/rfc3986#section-4.1
+     * @return string
+     */
+    public function __toString();
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/.gitignore b/Postman/Postman-Mail/google-api-client/vendor/psr/log/.gitignore
new file mode 100644
index 0000000..22d0d82
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/.gitignore
@@ -0,0 +1 @@
+vendor
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/LICENSE b/Postman/Postman-Mail/google-api-client/vendor/psr/log/LICENSE
new file mode 100644
index 0000000..474c952
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/LICENSE
@@ -0,0 +1,19 @@
+Copyright (c) 2012 PHP Framework Interoperability Group
+
+Permission is hereby granted, free of charge, to any person obtaining a copy 
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights 
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
+copies of the Software, and to permit persons to whom the Software is 
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in 
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/AbstractLogger.php b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/AbstractLogger.php
new file mode 100644
index 0000000..90e721a
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/AbstractLogger.php
@@ -0,0 +1,128 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * This is a simple Logger implementation that other Loggers can inherit from.
+ *
+ * It simply delegates all log-level-specific methods to the `log` method to
+ * reduce boilerplate code that a simple Logger that does the same thing with
+ * messages regardless of the error level has to implement.
+ */
+abstract class AbstractLogger implements LoggerInterface
+{
+    /**
+     * System is unusable.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function emergency($message, array $context = array())
+    {
+        $this->log(LogLevel::EMERGENCY, $message, $context);
+    }
+
+    /**
+     * Action must be taken immediately.
+     *
+     * Example: Entire website down, database unavailable, etc. This should
+     * trigger the SMS alerts and wake you up.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function alert($message, array $context = array())
+    {
+        $this->log(LogLevel::ALERT, $message, $context);
+    }
+
+    /**
+     * Critical conditions.
+     *
+     * Example: Application component unavailable, unexpected exception.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function critical($message, array $context = array())
+    {
+        $this->log(LogLevel::CRITICAL, $message, $context);
+    }
+
+    /**
+     * Runtime errors that do not require immediate action but should typically
+     * be logged and monitored.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function error($message, array $context = array())
+    {
+        $this->log(LogLevel::ERROR, $message, $context);
+    }
+
+    /**
+     * Exceptional occurrences that are not errors.
+     *
+     * Example: Use of deprecated APIs, poor use of an API, undesirable things
+     * that are not necessarily wrong.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function warning($message, array $context = array())
+    {
+        $this->log(LogLevel::WARNING, $message, $context);
+    }
+
+    /**
+     * Normal but significant events.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function notice($message, array $context = array())
+    {
+        $this->log(LogLevel::NOTICE, $message, $context);
+    }
+
+    /**
+     * Interesting events.
+     *
+     * Example: User logs in, SQL logs.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function info($message, array $context = array())
+    {
+        $this->log(LogLevel::INFO, $message, $context);
+    }
+
+    /**
+     * Detailed debug information.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function debug($message, array $context = array())
+    {
+        $this->log(LogLevel::DEBUG, $message, $context);
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/InvalidArgumentException.php b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/InvalidArgumentException.php
new file mode 100644
index 0000000..67f852d
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/InvalidArgumentException.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Psr\Log;
+
+class InvalidArgumentException extends \InvalidArgumentException
+{
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LogLevel.php b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LogLevel.php
new file mode 100644
index 0000000..9cebcac
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LogLevel.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * Describes log levels.
+ */
+class LogLevel
+{
+    const EMERGENCY = 'emergency';
+    const ALERT     = 'alert';
+    const CRITICAL  = 'critical';
+    const ERROR     = 'error';
+    const WARNING   = 'warning';
+    const NOTICE    = 'notice';
+    const INFO      = 'info';
+    const DEBUG     = 'debug';
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerAwareInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerAwareInterface.php
new file mode 100644
index 0000000..4d64f47
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerAwareInterface.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * Describes a logger-aware instance.
+ */
+interface LoggerAwareInterface
+{
+    /**
+     * Sets a logger instance on the object.
+     *
+     * @param LoggerInterface $logger
+     *
+     * @return void
+     */
+    public function setLogger(LoggerInterface $logger);
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerAwareTrait.php b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerAwareTrait.php
new file mode 100644
index 0000000..639f79b
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerAwareTrait.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * Basic Implementation of LoggerAwareInterface.
+ */
+trait LoggerAwareTrait
+{
+    /**
+     * The logger instance.
+     *
+     * @var LoggerInterface
+     */
+    protected $logger;
+
+    /**
+     * Sets a logger.
+     *
+     * @param LoggerInterface $logger
+     */
+    public function setLogger(LoggerInterface $logger)
+    {
+        $this->logger = $logger;
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerInterface.php b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerInterface.php
new file mode 100644
index 0000000..5ea7243
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerInterface.php
@@ -0,0 +1,123 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * Describes a logger instance.
+ *
+ * The message MUST be a string or object implementing __toString().
+ *
+ * The message MAY contain placeholders in the form: {foo} where foo
+ * will be replaced by the context data in key "foo".
+ *
+ * The context array can contain arbitrary data. The only assumption that
+ * can be made by implementors is that if an Exception instance is given
+ * to produce a stack trace, it MUST be in a key named "exception".
+ *
+ * See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md
+ * for the full interface specification.
+ */
+interface LoggerInterface
+{
+    /**
+     * System is unusable.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function emergency($message, array $context = array());
+
+    /**
+     * Action must be taken immediately.
+     *
+     * Example: Entire website down, database unavailable, etc. This should
+     * trigger the SMS alerts and wake you up.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function alert($message, array $context = array());
+
+    /**
+     * Critical conditions.
+     *
+     * Example: Application component unavailable, unexpected exception.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function critical($message, array $context = array());
+
+    /**
+     * Runtime errors that do not require immediate action but should typically
+     * be logged and monitored.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function error($message, array $context = array());
+
+    /**
+     * Exceptional occurrences that are not errors.
+     *
+     * Example: Use of deprecated APIs, poor use of an API, undesirable things
+     * that are not necessarily wrong.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function warning($message, array $context = array());
+
+    /**
+     * Normal but significant events.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function notice($message, array $context = array());
+
+    /**
+     * Interesting events.
+     *
+     * Example: User logs in, SQL logs.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function info($message, array $context = array());
+
+    /**
+     * Detailed debug information.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function debug($message, array $context = array());
+
+    /**
+     * Logs with an arbitrary level.
+     *
+     * @param mixed  $level
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function log($level, $message, array $context = array());
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerTrait.php b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerTrait.php
new file mode 100644
index 0000000..867225d
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/LoggerTrait.php
@@ -0,0 +1,140 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * This is a simple Logger trait that classes unable to extend AbstractLogger
+ * (because they extend another class, etc) can include.
+ *
+ * It simply delegates all log-level-specific methods to the `log` method to
+ * reduce boilerplate code that a simple Logger that does the same thing with
+ * messages regardless of the error level has to implement.
+ */
+trait LoggerTrait
+{
+    /**
+     * System is unusable.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function emergency($message, array $context = array())
+    {
+        $this->log(LogLevel::EMERGENCY, $message, $context);
+    }
+
+    /**
+     * Action must be taken immediately.
+     *
+     * Example: Entire website down, database unavailable, etc. This should
+     * trigger the SMS alerts and wake you up.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function alert($message, array $context = array())
+    {
+        $this->log(LogLevel::ALERT, $message, $context);
+    }
+
+    /**
+     * Critical conditions.
+     *
+     * Example: Application component unavailable, unexpected exception.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function critical($message, array $context = array())
+    {
+        $this->log(LogLevel::CRITICAL, $message, $context);
+    }
+
+    /**
+     * Runtime errors that do not require immediate action but should typically
+     * be logged and monitored.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function error($message, array $context = array())
+    {
+        $this->log(LogLevel::ERROR, $message, $context);
+    }
+
+    /**
+     * Exceptional occurrences that are not errors.
+     *
+     * Example: Use of deprecated APIs, poor use of an API, undesirable things
+     * that are not necessarily wrong.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function warning($message, array $context = array())
+    {
+        $this->log(LogLevel::WARNING, $message, $context);
+    }
+
+    /**
+     * Normal but significant events.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function notice($message, array $context = array())
+    {
+        $this->log(LogLevel::NOTICE, $message, $context);
+    }
+
+    /**
+     * Interesting events.
+     *
+     * Example: User logs in, SQL logs.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function info($message, array $context = array())
+    {
+        $this->log(LogLevel::INFO, $message, $context);
+    }
+
+    /**
+     * Detailed debug information.
+     *
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function debug($message, array $context = array())
+    {
+        $this->log(LogLevel::DEBUG, $message, $context);
+    }
+
+    /**
+     * Logs with an arbitrary level.
+     *
+     * @param mixed  $level
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    abstract public function log($level, $message, array $context = array());
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/NullLogger.php b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/NullLogger.php
new file mode 100644
index 0000000..d8cd682
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/NullLogger.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * This Logger can be used to avoid conditional log calls.
+ *
+ * Logging should always be optional, and if no logger is provided to your
+ * library creating a NullLogger instance to have something to throw logs at
+ * is a good way to avoid littering your code with `if ($this->logger) { }`
+ * blocks.
+ */
+class NullLogger extends AbstractLogger
+{
+    /**
+     * Logs with an arbitrary level.
+     *
+     * @param mixed  $level
+     * @param string $message
+     * @param array  $context
+     *
+     * @return void
+     */
+    public function log($level, $message, array $context = array())
+    {
+        // noop
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/Test/LoggerInterfaceTest.php b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/Test/LoggerInterfaceTest.php
new file mode 100644
index 0000000..a0391a5
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/Psr/Log/Test/LoggerInterfaceTest.php
@@ -0,0 +1,140 @@
+<?php
+
+namespace Psr\Log\Test;
+
+use Psr\Log\LoggerInterface;
+use Psr\Log\LogLevel;
+
+/**
+ * Provides a base test class for ensuring compliance with the LoggerInterface.
+ *
+ * Implementors can extend the class and implement abstract methods to run this
+ * as part of their test suite.
+ */
+abstract class LoggerInterfaceTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @return LoggerInterface
+     */
+    abstract public function getLogger();
+
+    /**
+     * This must return the log messages in order.
+     *
+     * The simple formatting of the messages is: "<LOG LEVEL> <MESSAGE>".
+     *
+     * Example ->error('Foo') would yield "error Foo".
+     *
+     * @return string[]
+     */
+    abstract public function getLogs();
+
+    public function testImplements()
+    {
+        $this->assertInstanceOf('Psr\Log\LoggerInterface', $this->getLogger());
+    }
+
+    /**
+     * @dataProvider provideLevelsAndMessages
+     */
+    public function testLogsAtAllLevels($level, $message)
+    {
+        $logger = $this->getLogger();
+        $logger->{$level}($message, array('user' => 'Bob'));
+        $logger->log($level, $message, array('user' => 'Bob'));
+
+        $expected = array(
+            $level.' message of level '.$level.' with context: Bob',
+            $level.' message of level '.$level.' with context: Bob',
+        );
+        $this->assertEquals($expected, $this->getLogs());
+    }
+
+    public function provideLevelsAndMessages()
+    {
+        return array(
+            LogLevel::EMERGENCY => array(LogLevel::EMERGENCY, 'message of level emergency with context: {user}'),
+            LogLevel::ALERT => array(LogLevel::ALERT, 'message of level alert with context: {user}'),
+            LogLevel::CRITICAL => array(LogLevel::CRITICAL, 'message of level critical with context: {user}'),
+            LogLevel::ERROR => array(LogLevel::ERROR, 'message of level error with context: {user}'),
+            LogLevel::WARNING => array(LogLevel::WARNING, 'message of level warning with context: {user}'),
+            LogLevel::NOTICE => array(LogLevel::NOTICE, 'message of level notice with context: {user}'),
+            LogLevel::INFO => array(LogLevel::INFO, 'message of level info with context: {user}'),
+            LogLevel::DEBUG => array(LogLevel::DEBUG, 'message of level debug with context: {user}'),
+        );
+    }
+
+    /**
+     * @expectedException \Psr\Log\InvalidArgumentException
+     */
+    public function testThrowsOnInvalidLevel()
+    {
+        $logger = $this->getLogger();
+        $logger->log('invalid level', 'Foo');
+    }
+
+    public function testContextReplacement()
+    {
+        $logger = $this->getLogger();
+        $logger->info('{Message {nothing} {user} {foo.bar} a}', array('user' => 'Bob', 'foo.bar' => 'Bar'));
+
+        $expected = array('info {Message {nothing} Bob Bar a}');
+        $this->assertEquals($expected, $this->getLogs());
+    }
+
+    public function testObjectCastToString()
+    {
+        if (method_exists($this, 'createPartialMock')) {
+            $dummy = $this->createPartialMock('Psr\Log\Test\DummyTest', array('__toString'));
+        } else {
+            $dummy = $this->getMock('Psr\Log\Test\DummyTest', array('__toString'));
+        }
+        $dummy->expects($this->once())
+            ->method('__toString')
+            ->will($this->returnValue('DUMMY'));
+
+        $this->getLogger()->warning($dummy);
+
+        $expected = array('warning DUMMY');
+        $this->assertEquals($expected, $this->getLogs());
+    }
+
+    public function testContextCanContainAnything()
+    {
+        $context = array(
+            'bool' => true,
+            'null' => null,
+            'string' => 'Foo',
+            'int' => 0,
+            'float' => 0.5,
+            'nested' => array('with object' => new DummyTest),
+            'object' => new \DateTime,
+            'resource' => fopen('php://memory', 'r'),
+        );
+
+        $this->getLogger()->warning('Crazy context data', $context);
+
+        $expected = array('warning Crazy context data');
+        $this->assertEquals($expected, $this->getLogs());
+    }
+
+    public function testContextExceptionKeyCanBeExceptionOrOtherValues()
+    {
+        $logger = $this->getLogger();
+        $logger->warning('Random message', array('exception' => 'oops'));
+        $logger->critical('Uncaught Exception!', array('exception' => new \LogicException('Fail')));
+
+        $expected = array(
+            'warning Random message',
+            'critical Uncaught Exception!'
+        );
+        $this->assertEquals($expected, $this->getLogs());
+    }
+}
+
+class DummyTest
+{
+    public function __toString()
+    {
+    }
+}
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/README.md b/Postman/Postman-Mail/google-api-client/vendor/psr/log/README.md
new file mode 100644
index 0000000..574bc1c
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/README.md
@@ -0,0 +1,45 @@
+PSR Log
+=======
+
+This repository holds all interfaces/classes/traits related to
+[PSR-3](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md).
+
+Note that this is not a logger of its own. It is merely an interface that
+describes a logger. See the specification for more details.
+
+Usage
+-----
+
+If you need a logger, you can use the interface like this:
+
+```php
+<?php
+
+use Psr\Log\LoggerInterface;
+
+class Foo
+{
+    private $logger;
+
+    public function __construct(LoggerInterface $logger = null)
+    {
+        $this->logger = $logger;
+    }
+
+    public function doSomething()
+    {
+        if ($this->logger) {
+            $this->logger->info('Doing work');
+        }
+
+        // do something useful
+    }
+}
+```
+
+You can then pick one of the implementations of the interface to get a logger.
+
+If you want to implement the interface, you can require this package and
+implement `Psr\Log\LoggerInterface` in your code. Please read the
+[specification text](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md)
+for details.
diff --git a/Postman/Postman-Mail/google-api-client/vendor/psr/log/composer.json b/Postman/Postman-Mail/google-api-client/vendor/psr/log/composer.json
new file mode 100644
index 0000000..87934d7
--- /dev/null
+++ b/Postman/Postman-Mail/google-api-client/vendor/psr/log/composer.json
@@ -0,0 +1,26 @@
+{
+    "name": "psr/log",
+    "description": "Common interface for logging libraries",
+    "keywords": ["psr", "psr-3", "log"],
+    "homepage": "https://github.com/php-fig/log",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "PHP-FIG",
+            "homepage": "http://www.php-fig.org/"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.0"
+    },
+    "autoload": {
+        "psr-4": {
+            "Psr\\Log\\": "Psr/Log/"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0.x-dev"
+        }
+    }
+}
diff --git a/Postman/Postman.php b/Postman/Postman.php
index 153257b..b1779f2 100644
--- a/Postman/Postman.php
+++ b/Postman/Postman.php
@@ -54,6 +54,7 @@ class Postman {
 		require_once 'PostmanConfigTextHelper.php';
 		require_once 'Postman-Email-Log/PostmanEmailLogPostType.php';
 		require_once 'Postman-Mail/PostmanMyMailConnector.php';
+		require_once 'Postman-Mail/PostmanWooCommerce.php';
 
 		// get plugin metadata - alternative to get_plugin_data
 		$this->pluginData = array(
@@ -105,6 +106,9 @@ class Postman {
 		// MyMail integration
 		new PostmanMyMailConnector( $rootPluginFilenameAndPath );
 
+		// WooCommerce Integration
+		new PostmanWoocommerce();
+
 		// register the shortcode handler on the add_shortcode event
 		add_shortcode( 'postman-version', array(
 				$this,
diff --git a/Postman/PostmanAdminController.php b/Postman/PostmanAdminController.php
index 9758b55..03a7109 100644
--- a/Postman/PostmanAdminController.php
+++ b/Postman/PostmanAdminController.php
@@ -51,6 +51,10 @@ if ( ! class_exists( 'PostmanAdminController' ) ) {
 		const MULTISITE_SECTION = 'postman_multisite_section';
 		const ADVANCED_OPTIONS = 'postman_advanced_options';
 		const ADVANCED_SECTION = 'postman_advanced_section';
+		const NOTIFICATIONS_OPTIONS = 'postman_notifications_options';
+		const NOTIFICATIONS_SECTION = 'postman_notifications_section';
+		const NOTIFICATIONS_PUSHOVER_CRED = 'postman_pushover_cred';
+		const NOTIFICATIONS_SLACK_CRED = 'postman_slack_cred';
 		const EMAIL_VALIDATION_SECTION = 'postman_email_validation_section';
 		const EMAIL_VALIDATION_OPTIONS = 'postman_email_validation_options';
 
diff --git a/Postman/PostmanInputSanitizer.php b/Postman/PostmanInputSanitizer.php
index e42b6fd..859e3cb 100644
--- a/Postman/PostmanInputSanitizer.php
+++ b/Postman/PostmanInputSanitizer.php
@@ -68,6 +68,11 @@ if ( ! class_exists( 'PostmanInputSanitizer' ) ) {
 			$this->sanitizeInt( 'Transcript Size', PostmanOptions::TRANSCRIPT_SIZE, $input, $new_input );
 			$this->sanitizeString( 'Temporary Directory', PostmanOptions::TEMPORARY_DIRECTORY, $input, $new_input );
 
+			$this->sanitizeString( 'Pushover Service', PostmanOptions::NOTIFICATION_SERVICE, $input, $new_input, $this->options->getNotificationService() );
+			$this->sanitizePassword( 'Pushover Username', PostmanOptions::PUSHOVER_USER, $input, $new_input, $this->options->getPushoverUser() );
+			$this->sanitizePassword( 'Pushover Token', PostmanOptions::PUSHOVER_TOKEN, $input, $new_input, $this->options->getPushoverToken() );
+			$this->sanitizePassword( 'Slack Token', PostmanOptions::SLACK_TOKEN, $input, $new_input, $this->options->getSlackToken() );
+
 			if ( $new_input [ PostmanOptions::CLIENT_ID ] != $this->options->getClientId() || $new_input [ PostmanOptions::CLIENT_SECRET ] != $this->options->getClientSecret() || $new_input [ PostmanOptions::HOSTNAME ] != $this->options->getHostname() ) {
 				$this->logger->debug( 'Recognized new Client ID' );
 				// the user entered a new client id and we should destroy the stored auth token
diff --git a/Postman/PostmanOptions.php b/Postman/PostmanOptions.php
index 8b318ef..193f8c9 100644
--- a/Postman/PostmanOptions.php
+++ b/Postman/PostmanOptions.php
@@ -104,6 +104,10 @@ if ( ! class_exists( 'PostmanOptions' ) ) {
 		const TRANSCRIPT_SIZE = 'transcript_size';
 		const TEMPORARY_DIRECTORY = 'tmp_dir';
 		const DISABLE_EMAIL_VALIDAITON = 'disable_email_validation';
+		const NOTIFICATION_SERVICE = 'notification_service';
+		const PUSHOVER_USER = 'pushover_user';
+		const PUSHOVER_TOKEN = 'pushover_token';
+		const SLACK_TOKEN = 'slack_token';
 
 		// defaults
 		const DEFAULT_TRANSCRIPT_SIZE = 128;
@@ -112,6 +116,7 @@ if ( ! class_exists( 'PostmanOptions' ) ) {
 		const DEFAULT_MAIL_LOG_ENABLED = self::MAIL_LOG_ENABLED_OPTION_YES;
 		const DEFAULT_MAIL_LOG_ENTRIES = 250;
 		const DEFAULT_LOG_LEVEL = PostmanLogger::ERROR_INT;
+		const DEFAULT_NOTIFICATION_SERVICE = 'default';
 		const DEFAULT_TRANSPORT_TYPE = 'smtp'; // must match what's in PostmanSmtpModuleTransport
 		const DEFAULT_TCP_READ_TIMEOUT = 60;
 		const DEFAULT_TCP_CONNECTION_TIMEOUT = 10;
@@ -187,11 +192,21 @@ if ( ! class_exists( 'PostmanOptions' ) ) {
 				return $this->options [ PostmanOptions::TRANSCRIPT_SIZE ];
 			} else { 				return self::DEFAULT_TRANSCRIPT_SIZE; }
 		}
+
 		public function getLogLevel() {
 			if ( isset( $this->options [ PostmanOptions::LOG_LEVEL ] ) ) {
 				return $this->options [ PostmanOptions::LOG_LEVEL ];
 			} else { 				return self::DEFAULT_LOG_LEVEL; }
 		}
+
+		public function getNotificationService() {
+			if ( isset( $this->options [ PostmanOptions::NOTIFICATION_SERVICE ] ) ) {
+				return $this->options [ PostmanOptions::NOTIFICATION_SERVICE ];
+			} else {
+				return self::DEFAULT_NOTIFICATION_SERVICE;
+			}
+		}
+
 		public function getForcedToRecipients() {
 			if ( isset( $this->options [ self::FORCED_TO_RECIPIENTS ] ) ) {
 				return $this->options [ self::FORCED_TO_RECIPIENTS ]; }
@@ -273,6 +288,25 @@ if ( ! class_exists( 'PostmanOptions' ) ) {
 				return $this->options [ PostmanOptions::MAILGUN_DOMAIN_NAME ];
 			}
 		}
+
+		public function getPushoverUser() {
+			if ( isset( $this->options [ PostmanOptions::PUSHOVER_USER ] ) ) {
+				return base64_decode( $this->options [ PostmanOptions::PUSHOVER_USER ] );
+			}
+		}
+
+		public function getPushoverToken() {
+			if ( isset( $this->options [ PostmanOptions::PUSHOVER_TOKEN ] ) ) {
+				return base64_decode( $this->options [ PostmanOptions::PUSHOVER_TOKEN ] );
+			}
+		}
+
+		public function getSlackToken() {
+			if ( isset( $this->options [ PostmanOptions::SLACK_TOKEN ] ) ) {
+				return base64_decode( $this->options [ PostmanOptions::SLACK_TOKEN ] );
+			}
+		}
+		
 		public function getReplyTo() {
 			if ( isset( $this->options [ PostmanOptions::REPLY_TO ] ) ) {
 				return $this->options [ PostmanOptions::REPLY_TO ]; }
diff --git a/Postman/PostmanUtils.php b/Postman/PostmanUtils.php
index 059c9e0..ed5864e 100644
--- a/Postman/PostmanUtils.php
+++ b/Postman/PostmanUtils.php
@@ -227,6 +227,13 @@ class PostmanUtils {
 			}
 		}
 	}
+
+	static function lockFileExists() {
+		$path = PostmanUtils::calculateTemporaryLockPath( null );
+
+		return file_exists($path);
+	}
+
 	static function deleteLockFile( $tempDirectory = null ) {
 		$path = PostmanUtils::calculateTemporaryLockPath( $tempDirectory );
 		$success = @unlink( $path );
diff --git a/Postman/PostmanViewController.php b/Postman/PostmanViewController.php
index 991ea8a..35fb80a 100644
--- a/Postman/PostmanViewController.php
+++ b/Postman/PostmanViewController.php
@@ -36,10 +36,23 @@ if ( ! class_exists( 'PostmanViewController' ) ) {
 
 			// initialize the scripts, stylesheets and form fields
 			add_action( 'admin_init', array( $this, 'registerStylesAndScripts' ), 0 );
+			add_action( 'wp_ajax_delete_lock_file', array( $this, 'delete_lock_file' ) );
 			//add_action( 'admin_init', array( $this, 'do_activation_redirect' ) );
 
 		}
 
+		function delete_lock_file() {
+			check_ajax_referer( 'postman', 'security' );
+
+			if ( ! PostmanUtils::lockFileExists() ) {
+				echo __('No lock file found.', Postman::TEXT_DOMAIN );
+				die();
+			}
+
+			echo PostmanUtils::deleteLockFile() == true ? __('Success', Postman::TEXT_DOMAIN ) : __('Failed, try again.', Postman::TEXT_DOMAIN );
+			die();
+		}
+
 		function do_activation_redirect() {
 
 			// Bail if no activation redirect
@@ -317,6 +330,7 @@ if ( ! class_exists( 'PostmanViewController' ) ) {
 			print '<ul>';
 			printf( '<li><a href="%s" class="welcome-icon run-port-test">%s</a></li>', $this->getPageUrl( PostmanConnectivityTestController::PORT_TEST_SLUG ), __( 'Connectivity Test', Postman::TEXT_DOMAIN ) );
 			printf( '<li><a href="%s" class="welcome-icon run-port-test">%s</a></li>', $this->getPageUrl( PostmanDiagnosticTestController::DIAGNOSTICS_SLUG ), __( 'Diagnostic Test', Postman::TEXT_DOMAIN ) );
+			printf( '<li><a href="%s" data-security="%s" class="welcome-icon release-lock-file">%s</a></li>', '#', wp_create_nonce( "postman" ), __( 'Release Lock File Error', Postman::TEXT_DOMAIN ) );
 			printf( '<li><a href="https://postmansmtp.com/forums/" class="welcome-icon postman_support">%s</a></li>', __( 'Online Support', Postman::TEXT_DOMAIN ) );
 			printf( '<li><img class="align-middle" src="' . plugins_url( 'style/images/new.gif', dirname( __DIR__ ) . '/postman-smtp.php' ) . '"><a target="blank" class="align-middle" href="https://postmansmtp.com/category/guides/" class="welcome-icon postman_guides">%s</a></li>', __( 'Guides', Postman::TEXT_DOMAIN ) );
 			print '</ul></div></div></div></div>';
diff --git a/Postman/notifications/INotify.php b/Postman/notifications/INotify.php
new file mode 100644
index 0000000..d330cbe
--- /dev/null
+++ b/Postman/notifications/INotify.php
@@ -0,0 +1,4 @@
+<?php
+interface Postman_Notify {
+    public function send_message( $message );
+}
\ No newline at end of file
diff --git a/Postman/notifications/PostmanMailNotify.php b/Postman/notifications/PostmanMailNotify.php
new file mode 100644
index 0000000..a14a5f4
--- /dev/null
+++ b/Postman/notifications/PostmanMailNotify.php
@@ -0,0 +1,12 @@
+<?php
+
+class PostmanMailNotify implements Postman_Notify {
+
+    public function send_message($message)
+    {
+        $to_email = get_bloginfo( 'admin_email' );
+        $domain = get_bloginfo( 'url' );
+
+        mail( $to_email, "{$domain}: " .  __( 'Post SMTP email error', Postman::TEXT_DOMAIN ), $message , null, "-f{$to_email}" );
+    }
+}
\ No newline at end of file
diff --git a/Postman/notifications/PostmanNotify.php b/Postman/notifications/PostmanNotify.php
new file mode 100644
index 0000000..22ca56f
--- /dev/null
+++ b/Postman/notifications/PostmanNotify.php
@@ -0,0 +1,17 @@
+<?php
+require_once 'INotify.php';
+require_once 'PostmanMailNotify.php';
+require_once 'PostmanPushoverNotify.php';
+require_once 'PostmanSlackNotify.php';
+
+class PostmanNotify {
+    private $notify;
+
+    public function __construct( Postman_Notify $notify ) {
+        $this->notify = $notify;
+    }
+
+    public function send( $message, $log ) {
+        $this->notify->send_message( $message );
+    }
+}
\ No newline at end of file
diff --git a/Postman/notifications/PostmanPushoverNotify.php b/Postman/notifications/PostmanPushoverNotify.php
new file mode 100644
index 0000000..1c483b3
--- /dev/null
+++ b/Postman/notifications/PostmanPushoverNotify.php
@@ -0,0 +1,32 @@
+<?php
+
+class PostmanPushoverNotify implements Postman_Notify {
+
+    public function send_message($message)
+    {
+        $options = PostmanOptions::getInstance();
+
+        $api_url = "https://api.pushover.net/1/messages.json";
+        $app_token = $options->getPushoverToken();
+        $user_key = $options->getPushoverUser();
+
+        $args = array(
+            'body' => array(
+                "token" => $app_token,
+                "user" => $user_key,
+                "message" => $message,
+            )
+        );
+
+        $result = wp_remote_post( $api_url, $args );
+
+        if ( is_wp_error($result) ) {
+            error_log( __CLASS__ . ': ' . $result->get_error_message() );
+        }
+
+        $body = json_decode( wp_remote_retrieve_body( $result ), true );
+        if ( $body['status'] == 0 ) {
+            error_log( __CLASS__ . ': ' . print_r( $body, true ) );
+        }
+    }
+}
\ No newline at end of file
diff --git a/Postman/notifications/PostmanSlackNotify.php b/Postman/notifications/PostmanSlackNotify.php
new file mode 100644
index 0000000..41094ed
--- /dev/null
+++ b/Postman/notifications/PostmanSlackNotify.php
@@ -0,0 +1,37 @@
+<?php
+
+class PostmanSlackNotify implements Postman_Notify {
+
+    public function send_message($message)
+    {
+        $options = PostmanOptions::getInstance();
+
+        $api_url = $options->getSlackToken();
+
+        $headers = array(
+            'content-type' => 'application/json'
+        );
+
+        $body = array(
+            'text' => $message
+        );
+
+        $args = array(
+            'headers' => $headers,
+            'body' => json_encode($body)
+        );
+
+        $result = wp_remote_post( $api_url, $args );
+
+        if ( is_wp_error($result) ) {
+            error_log( __CLASS__ . ': ' . $result->get_error_message() );
+        }
+
+        $code = wp_remote_retrieve_response_code( $result );
+        $message = wp_remote_retrieve_response_message( $result );
+
+        if ( $code != 200 && $message !== 'OK' ) {
+            error_log( __CLASS__ . ': ' . $message );
+        }
+    }
+}
\ No newline at end of file
diff --git a/postman-smtp.php b/postman-smtp.php
index 0f9cc3d..4504808 100644
--- a/postman-smtp.php
+++ b/postman-smtp.php
@@ -36,6 +36,7 @@
  */
 
 define( 'POST_BASE', __FILE__ );
+define( 'POST_PATH', __DIR__ );
 
 if ( in_array( 'postman-smtp/postman-smtp.php', (array) get_option( 'active_plugins', array() ) ) ) {
 	add_action( 'admin_init', 'post_smtp_plugin_deactivate' );
diff --git a/script/postman.js b/script/postman.js
index 9c55b17..0ae1947 100644
--- a/script/postman.js
+++ b/script/postman.js
@@ -8,6 +8,17 @@ jQuery(document).ready(function($) {
 		    return false;
 		}
 	});
+
+	$('.release-lock-file').on('click', function(e) {
+		e.preventDefault();
+
+		var security = $(this).data('security');
+
+		$.post(ajaxurl, {action: 'delete_lock_file', security: security}, function(result) {
+			alert(result);
+		});
+
+	});
 });
 
 var redirectUrlWarning = false;