http://stackoverflow.com/questions/8961707/how-to-detect-moving-of-an-item-between-knockout-observable-arrays
jQuery 1.7.1, HTML, CSS, JavaScript
https://groups.google.com/d/topic/knockoutjs/C7NCqdUPxXM/discussion
Having a problem getting the dialog to show; dialog retains 'display: none' property despite call to 'open'
https://github.com/rniemeyer/knockout-sortable