Fix test name

Author: marceljuenemann

test/dndDraggingSpec.js renamed to test/dndDraggableSpec.js

@@ -1,4 +1,4 @@
-describe('dndDragging', function() {
+describe('dndDraggable', function() {
 
   var SIMPLE_HTML = '<div dnd-draggable="{hello: \'world\'}"></div>';
 

test/index.html

@@ -18,7 +18,7 @@
 
   <!-- Spec files -->
   <script src="init.js"></script>
-  <script src="dndDraggingSpec.js"></script>
+  <script src="dndDraggableSpec.js"></script>
   <script src="dndListSpec.js"></script>
   <script src="dndNodragSpec.js"></script>