This change moves us over to Backbone 1.3.3. There are three changes

to the API that required updates:

this.options is no longer set when initializing views, and has to be

  done manually if desired. We only had about 10 views that actually

  used this.options, so this isn't too invasive. I've updated

  documentation where our docs were already in the new style, and

  otherwise left it the same for old code (which will be updated for our

  new doc standards in due time).
Callbacks from Model.destroy() are now asynchronous. This doesn't

  actually affect the UI at all, but did affect some unit tests which were

  written with the assumption that it was synchronous.
Events.listenTo no longer calls Events.on, instead delegating to

  an internal function. I've updated the test that checked this to instead

  check the internal listener state (which is probably about as fragile).

Ran js-tests.
Smoke tested the UI.