Merge pull request #279 from xingsenma/master

issue #3419 add Trigger for cocostudio
Adds missing files for JSB.
Merge pull request #280 from dumganhar/add-trigger-code-for-jsb

Adds missing files for JSB.
eventDef.js —> EventDef.js
Removes an unneeded line in tests-boot-jsb.js.
Merge pull request #281 from dumganhar/ccs-fix

Two small fixes for CocoStudio
issue #3419 change changeDisplayByIndex to changeDisplayWithIndex
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js-tests into Cocostudio