Merge branch 'refs/heads/master' into project-creator
Merge branch 'master' of https://github.com/cocos2d/cocos2d-x into project-creator
issue #1733, unify package name to org.cocos2dx.hello* lower case on both android & ios.
issue #1733, improve the help description of create_project.py
Merge pull request #2014 from walzer/project-creator

unify package name to org.cocos2dx.hello* on both ios and android