alphagov/backdrop — pull request #300 by robyoung (2014-05-24 15:56:48+00:00)
Title: Refactor data layer step 4

Depends on #299

This pull request is some clean up before tackling the query method.

- Refactor how the features interact with and clean up mongo collections.
- Remove `Database` and `DataSet` from the write api and admin app.