opengl text shader
Merge branch 'Linux' of github.com:CarlRapp/Agile into Linux

Conflicts:
	Breakout/Breakout/Graphics/IGraphics.h
	Breakout/Breakout/Graphics/OpenGL/GLGraphics.cpp
	Breakout/Breakout/Graphics/OpenGL/GLGraphics.h
	Breakout/Breakout/Program.cpp