White space and warning stuff
color_t: Added isNaN isInf methods useful for debugging
MathOptimizations: Removed fTan, results too far from the right precision
Fix for glossy materials
Merge branch 'master' of github.com:YafaRay/Core

Conflicts:
	include/core_api/texture.h
	include/utilities/mathOptimizations.h
ImageFilm: Replaced doubles with floats
PFLOAT removed from matrix4x4
SPPM: removed incompatible long long type
Microfacet: Fixed out of rdomain divisors and added firefly rejection value
MathOptimizations: Removed double overloads
ImageFilm: Fixed filter calculation for floats instead of doubles
CMake: added headers to source lists
* FAST_MATH and FAST_TRIG enabled by default
SampleUtils: Removed doubles from cone sampling code
Microfacet: fixed the tan cutoff
SPPM: added int64_t to the big variables