Message pump function
Merge branch 'master' into OgreRenderSubsystem

Conflicts:
	OgreRenderSystem/src/OgreRenderSubsystem.cpp
MSVC project filters based on directories structure
Merge pull request #16 from Eaglegor/MSVC_Filter

Msvc filters
Bugfixing
Stop engine message
Destruction refactoring
Merge pull request #17 from Eaglegor/CoreSubsystems

Core subsystems refactorings and bugfixes
Added *.kdev4 to gitignore
Small log message about main loop start
Merge pull request #18 from Eaglegor/CoreSubsystems

Very small changes