[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #5813 from CocosRobot/update_cocosfiles_1394811515

[AUTO][ci skip]: updating cocos2dx_files.json
Merge pull request #5814 from lihex/develop

update submodule
Update README.md
Update README.md
Reverts changes in CCApplication.cpp/.mm, pollEvent must after main loop, otherwise, potential crash will happen.
Merge pull request #28 from cocos2d/develop

update with upstream
Merge branch 'develop' of https://github.com/dumganhar/cocos2d-x into develop
Merge pull request #5815 from dumganhar/develop

Reverts changes in CCApplication.cpp/.mm, pollEvent must after main loop, otherwise, potential crash will happen.
update submodule