Closed #2762: Refactor CCSimpleAudioEngine.js for code maintainability
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss2762_RefactorSimpleAudioEngine
Merge pull request #1109 from dingpinglv/Iss2762_RefactorSimpleAudioEngine

Closed #2762: Refactor CCSimpleAudioEngine.js for code maintainability