fix static_dir, use static-dir for app, use media-dir for user upload
fix docs-list bug
Merge branch 'master' of https://github.com/School-of-Innovation-Experiment/provinceManagement
delete /static dir
Merge branch 'master' of https://github.com/School-of-Innovation-Experiment/provinceManagement
add media-root to static-dirs
recover static dir before delete