Fixed #4166: Fix particleSystem's bug that its color is incorrect on WebGL
Merge branch 'tests_js_3.0' of https://github.com/cocos2d/cocos2d-js-tests into Iss4166
Merge pull request #349 from dingpinglv/Iss4166_ParticleBug

Fixed #4166: Fix particleSystem's bug that its color is incorrect on WebGL