https://stackoverflow.com/questions/4820549/how-to-empty-db-in-heroku
heroku pg:reset DATABASE_URL
heroku run rake db:migrate
heroku run rake db:seed
https://stackoverflow.com/questions/4820549/how-to-empty-db-in-heroku
heroku pg:reset DATABASE_URL
heroku run rake db:migrate
heroku run rake db:seed