Clean up code

Change-Id: I9a2fe33634cebaadfe8065161baf020afaeb0018
Commented out debug code

Change-Id: I4015c510cca9448aa4094e8dff9ad3da848b5e47
Renamed for consistency

Change-Id: Ic553edb29b77df743ae63e5a8b80f323d7515dcd
Merge remote-tracking branch 'origin/volume_lighting_and_other_fixes' into positional_lights_test

Conflicts:
	Rendering/Volume/Testing/Cxx/CMakeLists.txt

Change-Id: I410a666f18ddbd41f08e2e3e680f021ef73da372
Compute appropriate matrix for normal transformation

Change-Id: I5dd6e51f503c4bc78422222fb67ec584d453aead
Fixed naming convention

Change-Id: I3664a8cc0e792a083e9df1d4374c96a423cee039