title: Symfony2 HTML in the trans twig filter
body: <p>I use the Symfony2.1 and have the default config.yml</p>
  
  <p><a href="http://symfony.com/doc/current/book/translation.html#twig-templates">Documentation said</a>:</p>
  
  <pre><code>  {# but static strings are never escaped #}
    {{ '&lt;h3&gt;foo&lt;/h3&gt;'|trans }}
  </code></pre>
  
  <p>But if I copy and paste it into the my empty template (without any additional autoescapes or another) I got the escaped string <code>&lt;h3&gt;foo&lt;/h3&gt;</code>. What I do wrong?</p>