Fixed an issue with the "Done" link and updated to work with jQuery 1.9+.

The most recent version submitted by David Byrd didn't work properly with my version of CoffeeScript.  The "Done" button would reload the page so I moved the `return` statement after the `if` since that method should always return false anyway.

Additionally, the `live` method has been deprecated since jQuery 1.7 so I've replaced it with `on`.