Merge pull request #1633 from xingsenma/develop

issue #4174 support cocostudio v1.3.0
Fixed a bug

cc.Application.getCurrentLanguage was always returning cc.LANGUAGE_ENGLISH.
Merge pull request #1641 from ZippoLag/patch-1

Fixed a bug
fixed a bug of callfunc
Merge pull request #1643 from ShengxiangChen/issue_callfunc

fixed a bug of callfunc
issue #4174 add richText
issue #4174 Refactor flipped
issue #4174 Refactor setBackGroundImageColor for Layout
issue #4174 add getCustomSize method for widget
issue #4174 Set default enabled touch for widget
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into develop