rilwis/meta-box — pull request #258 by funkedgeek (2013-03-27 13:44:19+00:00)
Title: Refactored cloning

Did a bit of refactoring when it came to cloning fields with jQuery
widgets. Clicking the clone button now triggers a `clone` custom event.
If the field has a custom event handler for `clone`, it will be called.
This limits callbacks to just newly cloned elements instead of for every
element on the page like the old way