Adjust the iOS project of sample for the new directory structure of engine.
Adjust the android project of sample for the new directory structure of engine.
Update the JS Binding code for the engine.
Merge pull request #7 from natural-law/develop

Update the JS binding code & samples for latest cocos2d engine.
Merge branch 'develop' of https://github.com/cocos2d-x/plugin-x into develop