title: Print list in reverse order or put new items before the first
body: <p>I'm starting with AngularJS and Firebase. I'm looking for the way to insert new items in a list (hosted in Firebase) at the top or print the last item of the list at the top.
  The filter 'orderBy' from Angular doesn't work for me because it's a list.</p>
  
  <p>My actual code for insert items:</p>
  
  <pre><code>var ref = new Firebase("https://[here is my instance].firebaseio.com/");
  $scope.lineas = [];
  angularFire(ref, $scope, "lineas");
  $scope.agregarLinea = function() {
     $scope.lineas.push({texto: $scope.linea});
     $scope.linea = "";
  };
  </code></pre>
  
  <p>And for list the items:</p>
  
  <pre><code>&lt;ul class='lineas'&gt;
      &lt;li ng-repeat="linea in lineas"&gt;
          &lt;span&gt;{{linea.texto}}&lt;/span&gt;
      &lt;/li&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p>Thank you in advance for your help.</p>