Introduced pp-scanner.cpp, renamed `pp' to `Preprocessor' and removed useless #includes.

Details:  in all pluginspecs.

Some people don't like this.

Necessary because the CppHoverHandler uses QtHelp and moved from
CppTools to CppEditor.

It used to be in CppTools, but since the hover handler only makes sense
in the context of the C++ editor, this is a better place.

Save settings instead of crashing. Sorry about that!

It is now possible to choose between case-sensitive or case-insensitive
completion. Also, you can now disable the automatic insertion of braces.

To match the class name, CppToolsPlugin.

This change removes a number of wrong usages of the CppModelManager::documents()/document().

Enables F1 for opening their help pages. Seems to work nicely.

The macro tooltip is supposed to be a fallback, since otherwise you
won't be able to see type information for macro parameters.

Reviewed-by: Roberto Raggi

In this case it's fast enough and sorting the list makes it easier to
find what you're looking for.

Though because of the substring matching, what you're looking for might
still be way down the list.

Reviewed-by: con

In the GUI this is currently called "Methods" with the shortcut 'm'.

They're not overly useful to have in there, since they don't have a name
you could type to jump to them.

Reviewed-by: Roberto Raggi

The code completion was keeping around references to old documents after
the completion finished. This caused documents to stay in memory when
unloading projects, up until the next time you used the completion.

Avoid creating a copy of the list of projects.