Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into issue2261_LoaderBug

Conflicts:
	cocos2d/core/CCLoader.js
Merge pull request #1563 from dingpinglv/Iss4051_FixTMXLayerRemoveChild

Closed #4051: cc.TMXLayer.removeChild's bug has been fixed.
Merge pull request #1562 from ShengxiangChen/issue2261_LoaderBug

Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into ...
issue #1565 bug in CCSAXParser.js
Merge pull request #1566 from jandujar/issue_1565

issue #1565 bug in CCSAXParser.js
Fixed #4051: cc.TMXLayer.removeChild's bug has been fixed.