mixup physics joint anchor error.
Merge branch 'develop-v3' of https://github.com/apportable/cocos2d-iphone into develop-v3
Add pin joint support.
CCBReader update to support Float Check
Spring Joints.
min/max deserialization.
fixed a few CCBReader warnings
collision types added to CCBReader.
Merge branch 'develop-v3' of https://github.com/apportable/cocos2d-iphone into develop-v3
Merge branch 'develop-v3' of https://github.com/apportable/cocos2d-iphone into develop-v3