Subject: A simple 'Knight' model and apply migration

Description:

Notes:

- Before creating an app do 'syncdb'
- Create first model and create migration using:
  python manage.py schemamigration southtut --initial

- Above command will create migration directory. Apply migration using:
  python manage.py migrate southtut
Subject: Added another field 'dance_whenever_able'

Description:

Notes:
- If the model is been changed(new column has been added), apply it using:
  python manage.py schemamigration southtut --auto
  python manage.py migrate southtut