pw.dragdrop and pw.list spec tests

Yes, it would have been nice to use exiting mods as apposed to writing my own. I never would have considered a "sortable" mod for DND. It is a poor name. My search results for dragdrop resulted in a could poorly written mods and this url http://blog.parkji.co.uk/2013/08/11/native-drag-and-drop-in-angularjs.html. In other words, while I wrote my own, it was highly accelerated but this blog.