Use `.on()` instead of `.bind()`

As of jQuery 1.7, the `.on()`` method is the preferred method for
attaching event handlers to a document.

More information:

  http://api.jquery.com/bind/
  http://api.jquery.com/on/

At the same time, I added a semicolon that our lints noticed was
missing.

Change-Id: I9af895f63199995e9038e91fd047e75ba4e97228
Reviewed-on: https://gerrit.causes.com/23208
Reviewed-by: Preston Guillory <preston.guillory@causes.com>
Reviewed-by: Greg Hurrell <greg@causes.com>
Tested-by: Joe Lencioni <joe.lencioni@causes.com>