title: Symfony - Twig - Filter "localizeddate" doesn't work on DateTime
body: <p>I'm using twig and when I apply the filter </p>
  
  <p><code>{{tutoriel.dateCreation | localizeddate('medium', 'none') }}</code> on my datetime, I have this error :</p>
  
  <pre><code>The filter "localizeddate" does not exist in Video2LearnAdministrationBundle:VisualisationFicheTutoriel:fiche_tutoriel.html.twig at line 167
  </code></pre>
  
  <p>Where I'm wrong ?</p>
  
  <p>Thanks :)</p>