title: How do you sort an AngularFire collection?
body: <pre><code>  $scope.items = [];
    var ref = new Firebase("https://****.firebaseio.com/");
    var query = ref.limit(5);
  
    angularFire(query, $scope, "items");
  </code></pre>
  
  <hr>
  
  <pre><code>&lt;div ng-repeat="item in items" &gt;
  &lt;span&gt;{{item.title}}&lt;/span&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>How would you sort these by "title"?  I've seen a couple similar questions but the solutions don't seem to work, at least for this situation.</p>