0.4

* **breaking change (kinda)** no longer automatically reading options from `app.config.get('db')` (this never really was operational anyway)
* update the `backbone/collection` view to only look at ids with a `/` in them… for performance.
* Add unit tests
* Updates retry on a document update conflict
* fix error callbacks. They now return just the response … which is as Backbone intended.
* many methods were private before. They're now exposed in `.internals`
* changes feed now removes attributes from the model that were deleted in the db
* the delete method is now much smarter… by just re-implementing the update method
* **new** `createdAt` and `updatedAt` are now automatically created and updated.