Refactor cc.visibleRect by getter/setter.
Merge branch 'tests_js_3.0' of https://github.com/cocos2d/cocos2d-js-tests into tests_js_3.0_ccgame
Fix some bugs.
Merge pull request #351 from SmallAiTT/tests_js_3.0_ccgame

Refactor cc.visibleRect by getter/setter.