Merge pull request #1101 from xingsenma/develop_onResLoadingErr

issue #1088: add onResLoadingErr for preload file
closed #2741: Modify LabelTTF's rendering from direct draw to pre-render
Closed 2741: Solved the problem that LabelTTF didn't work on mobile browser.
Closed #2741: remove the debug codes.
Closed #2741: fixed a bug of SpriteCanvas that loading texture doesn't work when calling initWithFile
Merge pull request #1102 from dingpinglv/Iss2741_RefactorLabelTTFDraw

closed #2741: Modify LabelTTF's rendering from direct draw to pre-render
fixed #2754: Fixed the bug that _getResType error when the url of res is like "a.png?arg=value".
fixed #2760 : removeEventListener bug
Merge remote-tracking branch 'upstream/master' into develop
Merge remote-tracking branch 'upstream1/develop' into develop
Merge pull request #1103 from SmallAiTT/develop

fixed #2754: Fixed the bug that _getResType error when the url of res is...
Merge pull request #1104 from ShengxiangChen/addEventListenerBug

fixed #2760 : Stop listening or remove event for image() object onload event
fix for simple audio enginee loading and playing error on browser that doesn't support audio tag
Update CCLabelTTF.js

add param context to method visit()
Merge pull request #1106 from WanderWang/develop

Add param context to method visit() in cc.LabelTTF
Merge pull request #1105 from oupengsoftware/taskbranch/SPX-935

fix for simple audio engine loading and playing issue
Closed #2514: Migrate CCBReader to Cocos2d-x v2.1.4
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss2514_MigrateCCBReaderTo2.1.4
Closed #2762: Refactor CCSimpleAudioEngine.js for code maintainability
Merge pull request #1107 from dingpinglv/Iss2514_MigrateCCBReaderTo2.1.4

Closed #2514: Migrate CCBReader to Cocos2d-x v2.1.4