keychain
https://github.com/ldandersen/STUtils
IAP
http://github.com/mugunthkumar/MKStoreKit
//IOS 推送
https://github.com/ParsePlatform/PushTutorial
//JS调用OC
https://github.com/faint2death/cocos2d-js/
http://blog.youkuaiyun.com/lanergaming/article/details/39550911