Update `build_ios.sh` for building luajit
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop_socket
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop_socket
Merge branch 'develop' of https://github.com/cocos2d/cocos2d-x into develop_socket
Merge pull request #6088 from samuele3hu/develop_socket

Update `build_ios.sh` for building luajit