refactor post-selection-ui to work with wp3.5-wp4.0

* added monkeypatch for `wpWidgets.appendTitle` and `wpWidgets.save` to hook `initPostSelectionUIOnEvent` for all use cases for WordPress 3.5 - 4.0 (including 1. on page load, 2. adding a brand new widget when none exist yet and 3. when saving and re-rendering of post-selection-ui
* removed event bindings out of the `else` conditional. @jeffstieler one thing to note on this is that these event bindings are _not_ necessary to get this to work in WP 3.5 - 4.0, but I would venture to guess this would assure future compatibility (so long as the event emitters remain as is. Could you think of any reason why these would hurt to leave them in?
* removed the console debug statements