Database heroku changes

Heroku add-on pgbackups provides ability to import export database.
link here: https://devcenter.heroku.com/articles/heroku-postgresql

https://devcenter.heroku.com/articles/heroku-postgres-import-export

 heroku pgbackups:capture
$ curl -o latest.dump `heroku pgbackups:url`

$ heroku pgbackups:restore DATABASE 'https://s3.amazonaws.com/me/items/3H0q/mydb.dump'

Access to heroku postgres DB prompt
heroku pg:psql

Djano South plugin which enables migrations
http://www.mikeball.us/blog/using-south-on-heroku/