Rename `cocos2d-html5/cocos2d/core/CCGame.js` to `cocos2d-html5/CCBoot.js`.
Merge pull request #1615 from SmallAiTT/CCGame_dev3.0

Rename `cocos2d-html5/cocos2d/core/CCGame.js` to `cocos2d-html5/CCBoot.js`