add offset back to jquery

Not sure why it was removed, perhaps all of the checkboxes were just unchecked in jquery builder. Offset is pretty standard, and it could have been useful back when I was doing the image deferrer. After trying to use a drag and drop library for transonic that needed offset, maybe let's add it back to all of commonplace.

I used https://raw.githubusercontent.com/jgallen23/jquery-builder/0.5.0/dist/2.0.2/jquery-ajax-deprecated-effects-event-alias-sizzle.js