Fixing DnD, removing LESS, cleaning code

- Updating DnD to use Sortable instead of draggable/dropppable
(updating deps as well).
- much simpler logic for DnD
- Remove LESS for now since it's a bit yet overkill
- fix moveFrame function

resources/proto-ui-1/main.css

@@ -36,8 +36,6 @@ body {
 	height: 46px;
 	width: 46px;
 	background-repeat: no-repeat;
-	/*background-size: 34px;
-	background-position: 6px;*/
 	background-size: 28px;
 	background-position: 9px; 
 	background-color: rgba(200,200,200, .1);