Fix Django unapplied migration(s) and support remote visits

Django start $python manage.py runserver 或 $python3 manage.py runserver windows上的python3版本的实用程序是python,而linux/mac平台上是python3 项目访问：https://127.0.0.1:8000 Warning You have 15 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions. Run 'python manage.py migrate' to apply them. Django start $python manage.py runserver 或 $pytho