goto top, removed annotator
Merge branch 'master' of https://github.com/XiaodunServerGroup/medicalmooc
Merge branch 'master' of https://github.com/XiaodunServerGroup/medicalmooc
replace video player with jwplayer in course_about, and studio settings
Merge branch 'master' of https://github.com/XiaodunServerGroup/medicalmooc