Feature #5363 add IOSIAP into PluginX
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js into IOSIAP
Feature #5363 add IOSIAPTest.js
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js into IOSIAP
Feature #5363 aFeature #5363  modify IOSIAPTest.js
Feature #5363 aFeature #5363  modify IOSIAPTest.js
Merge pull request #459 from wuzhiming/IOSIAP

Finish IOSIAP feature