fix course show about semester
Merge branch 'chengdu' of github.com:mindpin-shcmusic/pin-2012-edu into chengdu
testpaper create and show done
Merge branch 'chengdu' of github.com:mindpin-shcmusic/pin-2012-edu into chengdu
Merge branch 'chengdu' of git://github.com/arlyxiao/pin-2012-edu into chengdu
Merge branch 'chengdu' of github.com:mindpin-shcmusic/pin-2012-edu into chengdu
Basic crud of test_questions