I should be able to define how my `_checkList` items render

(User Story, Closed -> Duplicate, Priority: Critical, Test Status: No automated tests yet , Reported By Justin du Coeur, )
Summary: Currently, we just display the display name. We should be able to render each item in arbitrarily-complex ways.
This is specifically to support delete buttons, but will be more generally useful.
Keep in mind that we still need to be able to filter on the display text -- probably all displayed text.