remove header from js file
Merge pull request #1408 from wuzhiming/Iss3541_TestNPM

remove header from js file
Issue #3541: add a Shader test for NPM testing.
Merge branch 'NPM' of https://github.com/cocos2d/cocos2d-html5 into Iss3541_TestingNPM
Issue #3541: add Shader tests for NPM testing.