Django syncdb removal, and migrations support

[huguesv]

If you try running our django syncdb command on django 1.8, you'll see:

The syncdb command will be removed in Django 1.9

It appears that we should include commands, and refer to migrations (in docs, readme, etc) instead.
https://docs.djangoproject.com/en/1.8/topics/migrations/

[kevin-brown]

👍

The starting place would be to replace the existing syncdb target with a migrate one.

Side note: #334 is also related, but for the missing makemigrations target.