issue #2506: use direct call parent's function instead this._super for extensions
added js loading image
give loading image a id
修复BrowserTypes正则表达式匹配失败时的报错

修复BrowserTypes正则表达式匹配失败时的报错
Merge pull request #1097 from WanderWang/develop

fix crash when BrowserTypes match nothing from navigator.userAgent .
Merge branch 'develop' of github.com:cocos2d/cocos2d-html5 into develop
fixed #2506: Optimize performance for ContolButton, ScrollView and TableView etc
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss2506_OptimizePerformanceForExtension
Merge pull request #1096 from 06wj/develop

added js loading image
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-html5 into Iss2506_OptimizePerformanceForExtension
fixed #2723: Function prototype have not method of bind in iphone safari.
fixed #2723: Append a div child to body bottom,and tag to it.
fixed #2723: Hide url address bar for mobile browser,it can work in iphone safari and android default browser .
Merge pull request #1099 from xingsenma/Branch_develop_AddressBar

fixed #2723: Hide url address bar for mobile browser
fixed #2725: Implement unloadPlist function of cc.SAXParser
issue #1088: add onResLoadingErr for preload file
Merge pull request #1100 from xingsenma/develop_unloadPlist

fixed #2725: Implement unloadPlist function of cc.SAXParser
Merge pull request #1098 from dingpinglv/Iss2506_OptimizePerformanceForExtension

fixed #2506: Optimize performance for ContolButton, ScrollView and TableView etc
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