Think about a future where OS Accounts has backbone app as its API.  If an admin is using that app and wants to get all users, I think this is the logical endpoint she'd call (`/users`), expecting it to return all OS Accounts users (or a queried subset).  

So maybe instead (see later comment) this endpoint should be `/api/application_users`.

Also starting to wonder if `/users/search` should just be `/users`??  By default returns paginated listing of users, filtered by search terms if provided, non-paginated for priviledged users.  Can't go changing that willy-nilly without involving karen tho, since they may have written code against this.