Merge pull request #3 from cocos2d/develop

sync my develop branch.
Move open browser code out of app delegate, and fix a xib bug where Chrome is not binded correctly.
Move open browser to after publish finished, also add support for remeber user's last browser choice.
Add detect browser presence functionality.
Merge pull request #4 from cocos2d/develop

sync my develop branch.
Move open browser code out of app delegate, and fix a xib bug where Chrome is not binded correctly.
Move open browser to after publish finished, also add support for remeber user's last browser choice.
Add detect browser presence functionality.
Merge branch 'js_in_browser3' of github.com:ayuer/CocosBuilder into js_in_browser3
Bug fix, the condition is for run in browser.
Merge pull request #322 from ayuer/js_in_browser3

Js in browser feature update