Fetch people from the Rails app.
Persist newly added people via the Rails server.
Delete person (and remove from DB).
Refactor: person subviews that know their models.

So we don't have to store the person ID in an HTML data attribute.
Skeleton for santafy action (algorithm TK).
Sort list of people consistently.
Added Desantafy! button.
Do santafy algorithm in memory.

It's just less confusing, and the performance impact for a data set
this small is moot and/or positive.
Fixed error when adding person.

If only we'd had tests, we could have caught this earlier!
Assign multiple gifts.
Initialize data on page load.

Instead of waiting for an AJAX query.