Sort Curry results

:fork_and_knife: When viewing watched repositories it isn't always clear that you
actually added the repo. This gives a sort order so you can visually
identify that the repo you just added is on the list.
For a persisted repository, `full_name` should not be nil, due to the validations on the model. Personally, I'd like to also have non-null guarantees at the database level, so I'm going to add a card to Trello to handle that.