Removed module names from #include directives.

Getting the #include directives ready for Qt5. This includes the
new-project wizards.

Change-Id: Ia9261f1e8faec06b9285b694d2b7e9a095978d2b
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>

src/plugins/mercurial/mercurialsettings.cpp

@@ -33,7 +33,7 @@
 #include "mercurialsettings.h"
 #include "constants.h"
 
-#include <QtCore/QSettings>
+#include <QSettings>
 
 namespace Mercurial {
 namespace Internal {