Merge pull request #3 from thePrincipal/feature/Issue-347

fix building ng-sortable

Author: thePrincipal

dist/ng-sortable.js

@@ -267,7 +267,7 @@
             targetElementOffset: null,
             sourceInfo: {
               index: item.index(),
-              itemScope: item.itemScope,
+              itemScope: ( item.itemScope || item ),
               sortableScope: item.sortableScope
             },
             canMove: function(itemPosition, targetElement, targetElementOffset) {