title: dojo gridx wont read from JSONRest store - what am i missing here?
body: <p>I having trouble populating a gridx widget from a JsonRest store. See my code below...
  test1.json contains the same info as i have specified in the data for teststore.</p>
  
  <p>When i change the grid to point at the teststore var it displays the contents correctly but when i point it at the reststore variable i get a 'No items to display' message.</p>
  
  <p>Anyone know what im missing?</p>
  
  <pre><code>var restStore = new   dojo.store.JsonRest({target:"http://localhost:9081/MyProj/test1.json"});
  
  
  var teststore = new Store({
   data: [
   {id: "1", "description":"First Description"},
   {id: "2", "description":"Second Description"},
   {id: "3", "description":"Third Description"},
   {id: "4", "description":"Fourth Description"}
         ]
  });
  
  
  
    grid = new Grid({
      cacheClass: Cache,
      store: restStore,
      structure: [
        {id: "description", field: 'description', width: '100%'}
      ]
    }); 
  
  grid.startup();
  </code></pre>