CCLayerPanZoom: Use dynamic property for maxScale/minScale & update scale when they're changed.
CCLayerPanZoom: Use dynamic property for maxScale/minScale & update scale when they're changed.
yaoxiaoyong/cocos2d-iphone-extensions,cocos2d/cocos2d-iphone-extensions,VinceeeWang/cocos2d-iphone-extensions,ricardoquesada/cocos2d-iphone-extensions,VinceeeWang/cocos2d-iphone-extensions,cocos2d/cocos2d-iphone-extensions,digitalhoax/cocos2d-iphone-extensions,digitalhoax/cocos2d-iphone-extensions,yaoxiaoyong/cocos2d-iphone-extensions,ricardoquesada/cocos2d-iphone-extensions