Merge pull request #31 from cocoscodeide/master

update runtime js
Merge branch 'master' of https://github.com/chuanweizhang2013/cocos2d-js
Merge branch 'master' of https://github.com/cocoscodeide/cocos2d-js
copy res when update resource
Merge pull request #55 from chuanweizhang2013/master

copy res when update resource