Merge pull request #37 from houguohua/mergecocos3.0

version 2014-4-21
Merge pull request #38 from houguohua/mergecocos3.0

new version 2014-4-23
Merge pull request #39 from houguohua/mergecocos3.0

modify deviceadapter on ios
Merge pull request #40 from houguohua/mergecocos3.0

cocos3d new version 2014-4-25
Update README.md
Update README.md
Merge branch 'mergecocos3.0' of github.com:cocos2d/cocos3d-x into mergecocos3.0