issue #5797: fix the bug of assigning number to LabelTTF
issue #4544: fix memory leak of XMLHTTPRequest with sendImmediate
issue #4544 : Add abort function to JSB XMLHTTPRequest
Issue #5781: Update read me
issue #4544: fix comments
Refactor #5677 : Upgrade XHRTest to test full feature of XMLHttpRequest
issue #4544: add timeout default value and add some comments
Update -x to fix downloader issue
Issue #5781: Add cc.formatStr
Merge pull request #694 from joshuastray/master

issue #5797: fix the bug of assigning number to LabelTTF
Merge pull request #695 from pandamicro/master

Update -x to fix downloader issue
Merge pull request #696 from natural-law/master

Update the reference of submodule cocos2d-console.
Update the reference of submodule cocos2d-console.