The trials and tribulations of robust CSS and jQuery plugins

- folks insert `` tags willy-nilly, and ember used to do this with metamorphic too.
- no last-of-class exists, sadly
- folks insert `<form>` tags willy-nilly, because hidden inputs and ASP
- folks mess with the DOM out from under you (like swapping out the modal body)
- don't use `.click()`, because custom jQuery builds
- listen to events separately so they can be `.off()`ed separately
- always include `destroy` method
- tooltips can get added to random places in the DOM, causing weirdness (e.g. in tables) and disrupting CSS selectors. And removing the tooltip can screw with whitespace between inline-block elements