Delete and modify some defines
Continue changes to 'neutral' names for new project ( delete Yafaray references)
Add new head and license to export texture file.
Delete some mistakes in materials UI in last commit.
Delete some DEF and use 'real' values
Add "ibl" options to all supported background modes
Change some 'range' definitions for real values. Aim: minimize range declarations.
Expand compress modes for EXR files.
Make enable camera UI options only for supported modes.
Add new header and license to shaders UI file.
Change DEF definitions to real values in Size and Offset options.
Convert Tabs to spaces.
Change names of some variables from old Yafaray references.
Starting changes for use 'distance_to_aim' wings function in camera DOF.
Fix error use clauses? is 'case' code in Pathtracing photons.
Fix code for Render formats and expand EXR compress options.