新出的spine骨骼动画编辑器的使用demo，编译环境为xcode，使用前需要将cocos2dx2.1的cocos2dx文件夹内容考入指定文件夹-Use demo of the new spine skeletal animation editor, compiler environment xcode, before using a cocos2dx2.1 the cocos2dx file folder contents admitted to specify the file folder