Update engine version
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-js into develop
Issue #5993: Arrange test cases
- Remove plugin test for iOS web
- Add Cocos Studio parser test on JSB
[3.1 release] Add docs and update h5 engine
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-js into develop
Issue #5993: Remove armv7s architecture
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-js into develop
Update submodules
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-js into develop
Merge pull request #890 from pandamicro/develop

[3.1 release] Add docs and update h5 engine