bug fix

Updated to follow the spec (http://www.w3.org/TR/XMLHttpRequest/)
update header
Merge pull request #505 from seobyeongky/patch-2

bug fix
Update the reference of submodule cocos2d-console.
Merge pull request #507 from natural-law/master

Update the reference of submodule cocos2d-console.
Update plugin ref
Tiny changes
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js
Update submodules
Update pluginx
Update plugin ref
Update plugin ref
Update plugin ref
Update plugin ref
Merge pull request #508 from pandamicro/master

Update submodules with PluginFacebook
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js into plugin_fb