title: zend 2 translating validation errors
body: <p>There are a lot of examples on how to do it on zend 1, but nothing yet on zend 2. Does anyone have any idea how to do it?</p>
  
  <p>I am using annotations in the model to define entities. This also does not seem to work: (It does not return mandatory_translation_key anywhere)</p>
  
  <pre><code> /**
   * @ORM\Column(type="string", length=100, name="Name")
   * 
   * @Annotation\Filter({"name":"StringTrim"})
   * @Annotation\Validator({"name":"StringLength", "options":{"min":1, "max":100}})
   * @Annotation\ErrorMessage("mandatory_translation_key")
   */
   protected $name;
  </code></pre>