daguar/balance-metrics-rails — pull request #23 by lippytak (2014-12-29 22:13:28+00:00)
Title: Purge bad messages

- Adds a rake task that deletes messages where both the TO and FROM number are Twilio numbers
- Updates the TwilioImporter to only import new messages

Once this is merged we can run `heroku run rake purge_bad_messages` to clean out the DB.