Add new fields to articles

- Reflects what data we'll be getting back from newspaper-delivery
  service
Try to write a function that dynamically takes attributes to query on

- This is probably a bad idea because if it is realizing the entire entity it will give up lazy-loading attributes (bad performance later)
- Dynamically querying may or may not be cleaner. Need to see what it looks like.
- TODO: The database it runs against is simply the development database. Look into using a d/with base-db some-test-data type call in tests