Three fixes here: Fixed final animation value for keyframe animations, f...

Three fixes here: 
1. Fixed final animation value for keyframe animations. Interpolation gives sometimes last value not equal to toValue
2. Fixed same as system animation key names ("bounds" -> "bounds_MT")
3. Fixed compilation for projects with objc-C++ specific stuff in PCH (only if user drag-n-drop files to his project)

P.S Sorry for some formatting changes