Added few commands to the runtime: SetMouseSystemCursor, and updated the ShowMouse command. Also added UpKey(), DownKey(), LeftKey() and RightKey().
Updates for image drawing. Added ScreenWidth() and ScreenHeight().
Modifications for audiointerface and for sounds.
Added transformation handling for the runtime. (model and view transform) Also updations for image drawing functions.
Merge branch 'develop' of git://github.com/Latexi95/CBCompiler into develop

Conflicts:
	Runtime/Runtime.pro
	Runtime/audiointerface.cpp
	Runtime/audiointerface.h
	Runtime/sound.cpp
	Runtime/sound.h
	tests/AdvancedMaths.cb