Done with dt.

But the variable was set at some place in Qt4ProjectManagerPlugin.
Do it all in QtVersionManager to avoid exactly the confusion that
happened.

The actions are already lazily instantiated in
TextEditorActionHandler::setupActions(), so there should be no need to
call initializeActions() in all plugins on startup. Only the main text
editor plugin will still initialize its actions, to make sure the menu
items are there.

Added IExternalEditor which knows a kind and a mimetype.
Make EditorManager and ProjectExplorer "Open With" query
the interface and add the respective kinds.
Add "openExternalEditor" to EditorManager.
Add External editors for Designer and Linguist,
making use of Mac 'open' or Designer's Tcp socket mechanism
to ensure files are opened in the same instance (per Qt version).

Task-number: 249392
Reviewed-by: con <qtc-committer@nokia.com>

After all I don't need all that stuff in the cmakeplugin, all i needed
is now bundled in debugginghelper.h/cpp

And add a instance() method to it.

The Debugger, cmake and Qt4 plugin all need it. More refactoring to it
coming.

And there seems to be no value in the code anyway.

Rename (Q)MakeBuildStepFactory to (Q)MakeStepFacotry
Move the factories to the same files as (Q)MakeStep
Delete the old qmakebuildstepfactory.(h|cpp)

We used to build a helper library as part of the project. First with the
qmake -after SOURCES= stuff and after until now with the
gdbmacrosbuildstep. Now, the all new and fancy integretation directtly
into the qt version dialog. You build the debugger library once for
each qt version and then it's there ready to be loaded into each
project build against that qt version. Saves a lot of time.
And makes it possible to also load that library into while debuggign a
cmake project. (Need to hook that up now.)
Unfourtanetly this breaks the custom dumpers if you use a custom run
executable.

Details:  This enables us to parse the build errors correctly.
          The makesteps of the qt4project and cmakeproject have some
          code dupliaction, which could be refactored. And the code
          to find out the correct build parser could probably also
          be done better, but we are now parsing the build output for
          cmake.

replace ExtensionSystem::PluginManager::instance()->getObject<Core::ICore>() by Core::ICore::instance()

Details:  - Naming convention

Details:  - Conform to naming convention

Details:  - To make it conform to naming convention.

Details:  ProFileCache be gone, as is ManagedProFile, not to be missed.
Drastically simplified how ownership works.