Delete all .make files
Note : they will be generated by the premake4.lua
Delete Makefile files
Update .gitignore
Add a sun (directional light)
Note : all other lights can be point or spot light.
Merge branch 'master' of https://github.com/cchampet/OpenGL
Key "z" add the sun which can be update by the gui

Conflicts:
	TD2/002/002_deferred.cpp