Merge branch '1.1' of github.com:mindpin-shcmusic/pin-2012-edu into 1.1
Merge branch 'chengdu' of github.com:mindpin-shcmusic/pin-2012-edu into chengdu
Add test_questions table
Add test_question model
Merge branch 'chengdu' of git://github.com/arlyxiao/pin-2012-edu into chengdu