closed #2340: Upgrading SpiderMonkey to Firefox v22.
issue #2340: Using 800x450 as design resolution for TestJavascript.
closed #2340: Updating spidermonkey library for iOS.
issue #2340: Updating submodule of cocos2d-console.
issue #2340: Checking jsc( js compiled) files first.
Merge pull request #3020 from dumganhar/iss2340-spidermonkey_v22

issue #2340: Upgrading SpiderMonekey to Firefox v22
Merge remote-tracking branch 'cocos2d/develop' into js_mac