CCBAnimationManager's delegate weakly referenced now.
Merge pull request #685 from NickyWeber/bugfix/sb_#270_animation_manager_delegate_strong

CCBAnimationManager's delegate weakly referenced now.
Switches floats to CGFloat for better compatibility with ARM 64 devices fixes #672 & #645
Merge branch 'v3.0' into develop

Conflicts:
	cocos2d-ui/CCBReader/CCBAnimationManager.h