I should be able to define delete buttons on-page

(User Story, To be Fixed , Priority: Critical, Test Status: No automated tests yet , Reported By Justin du Coeur, )
Functions
Summary: This is specifically for _checkList, but should be more generally useful.
As usual, this should require a second press to confirm.
Ideally, this would just re-render and remove the enclosing section about this Thing. Can we define that in a reasonably general way? It probably implies a general way to specify in the HTML that a given section is about a given Thing; if that wrapper is found, it goes away when you press the Delete.