Add LocationIdentity class
Upload incomplete updates, does not compile
Make compilable
Merge branch 'master' into uniforms_by_location

Conflicts:
	source/glow/CMakeLists.txt
Merge branch 'master' into uniforms_by_location

Conflicts:
	source/glow/include/glow/AbstractUniform.h
	source/glow/include/glow/Uniform.h
	source/glow/source/AbstractUniform.cpp
Merge pull request #164 from hpicgs/uniforms_by_location

Uniforms by location (closes #95)