Reverse CONSTRUCTOR_ACCESS to public
Fixed #4637: Add loop parameter to Animation::initWithSpriteFrames function
Reverse CONSTRUCTOR_ACCESS to protected
Fixed #4637: Add predefined value indication in cpp
Fixed #4638: Add loop parameter to Animation::createWithSpriteFrames
Merge pull request #6106 from pandamicro/AnimLoopFix

Fixed #4637: Add loop parameter to Animation::initWithSpriteFrames