Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Bug #5723 : mouse wheel behaviors are different between h5 and jsb
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Merge pull request #653 from joshuastray/master

Bug #5723 : mouse wheel behaviors are different between h5 and jsb