This change allows SMTP configuration via email, but users can
still choose to configure the settings directly in local_settings.py

When running the migration command from outside of the application directory the sqlite database is created in the current working directory at the time of the command being executed. This commit updates the file path to be relative to the location of the settings file.

Using new backend name which come with Django 1.9 django.db.backends.postgresql instead of django.db.backends.postgresql_psycopg2