title: Kendo UI Treeview not expanding nodes
body: <p>I have a Kendo UI treeview bound to remote data; however, while top level items are showing, and the arrow indicates there are children items, clicking the arrow does nothing but spin--no expansion to show child nodes. Any help would be appreciated.</p>
  
  <p>My code looks like this:</p>
  
  <pre><code>var industryTree = new kendo.data.HierarchicalDataSource({
       transport: {
           read: {
               url: 'http://'+document.domain+'/services/TreeIndustries.php',
               dataType: "json"
           },
           schema: {
               model: {
                  id:"id"
               }  
           }
       }
  });
  </code></pre>
  
  <p>My tree init:</p>
  
  <pre><code> var industryTreeView=$("#industry-tree").kendoTreeView({
       dataSource: industryTree,
       dataTextField: ["text","text"]
  
   });
  </code></pre>
  
  <p>The JSON returned validates correctly; anyone wanting a look can check it out here:</p>
  
  <pre><code>http://173.45.233.104/services/TreeIndustries.php
  </code></pre>