title: Symfony: i18n in generator.yml
body: <p>Does anyone know if there's a possibility to use i18n in the generator.yml file like this:</p>
  
  <pre><code>generator:
    class: sfDoctrineGenerator
    param:
      ...
      config:
        edit:
          title: Editing Category xyz
  </code></pre>
  
  <p>Now I'd like to translate the title in my i18n files.</p>