LibCore: Put all classes in the Core namespace and remove the leading C

I've been wanting to do this for a long time. It's time we start being
consistent about how this stuff works.

The new convention is:

- "LibFoo" is a userspace library that provides the "Foo" namespace.

That's it :^) This was pretty tedious to convert and I didn't even
start on LibGUI yet. But it's coming up next.

1 files changed, 2 insertions, 2 deletions

diff --git a/Applications/Help/main.cpp b/Applications/Help/main.cpp
index a6d615fa8e..8a174af4ae 100644
--- a/Applications/Help/main.cpp
+++ b/Applications/Help/main.cpp
@@ -113,10 +113,10 @@ int main(int argc, char* argv[])
 
         dbg() << "Opening page at " << path;
 
-        auto file = CFile::construct();
+        auto file = Core::File::construct();
         file->set_filename(path);
 
-        if (!file->open(CIODevice::OpenMode::ReadOnly)) {
+        if (!file->open(Core::IODevice::OpenMode::ReadOnly)) {
             int saved_errno = errno;
             GMessageBox::show(strerror(saved_errno), "Failed to open man page", GMessageBox::Type::Error, GMessageBox::InputType::OK, window);
             return;