Please, read blueprint here:
http://qt-project.org/wiki/Blueprint-for-language-specs-system



Removed feature from QbsProjectManager: it not longer splits project on
separate C and C++ parts, because Qt version used only by clang parser
(not native) and can be ignored for pure C and Objective-C without C++.

Change-Id: I1c561f7f9f915cc6cb8579d19db74e8352f54c1e
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Reviewed-by: Daniel Teske <daniel.teske@digia.com>