cocos2d/cocos2d-x — pull request #3530 by ricardoquesada (2013-09-02 23:47:02+00:00)
Title: Little performance improvements in SpriteBatchNode

_descendants: Array -> std::vector since retain/release is no needed
Code is cleaner
Removes unused method (bug inherited from cocos2d-iphone)
Adds more doxygen strings