remove comments; add message when PROJMAT_FULLSCREEN is used
remove comments; add message when PROJMAT_FULLSCREEN is used

JohnRThomas/opengl-examples,runewake2/opengl-examples,JohnRThomas/opengl-examples,runewake2/opengl-examples,JohnRThomas/opengl-examples,JohnRThomas/opengl-examples,runewake2/opengl-examples,runewake2/opengl-examples