Merge pull request #2 from cocos2d/develop

Merge from trunk
issue #3251 improve code
issue #3251 improve code for cocostudio
issue #3251 improve code for cocostudio
issue #3251 add call function for cocostudio action
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into develop_eglvew
Merge pull request #1302 from xingsenma/develop

issue #3251 improve code for cocostudio
Merge pull request #3 from cocos2d/develop

Merge from trunk
Refactor CCTween's init method

Refactor CCTween's init method
Merge pull request #1303 from WanderWang/develop

Refactor CCTween's init method
Closed #3352: Adding some codes for WebAudioEngine's compatibility.
Merge pull request #1304 from dingpinglv/Iss3352_WebAudioEngineVolume

Closed #3352: Adding some codes for WebAudioEngine's compatibility.
Closed #3344: fixed TMXLayer's bug that it has thin lines at tile's border when EGLView's scale doesn't equal 1.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss3344_TilemapLine
Closed #3344: remove the temporary codes
Merge pull request #1305 from dingpinglv/Iss3344_TilemapLine

Closed #3344: fixed TMXLayer's bug that it has thin lines at tile's border when EGLView's scale doesn't equal 1.
Closed #3344: remove the test codes.
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss3344_TilemapLine
Merge pull request #1306 from dingpinglv/Iss3344_TilemapLine

Closed #3344: remove the test codes.
Merge pull request #2 from cocos2d/develop

Pull down updates from cocos2d:develop