title: django registration change language
body: <p>I'm using django registration and I want to translate the names of the fields and the error messages. I've realized that in /registration/locale there are files with different translations, but I don't how to use them.</p>
  
  <p>This is a template example: </p>
  
  <pre><code>&lt;table class="formulari"&gt;
  &lt;form method='post' action=''&gt;{% csrf_token %}
      {{ form }}
      &lt;tr&gt;&lt;td&gt;&lt;/td&gt;&lt;td&gt;&lt;input type='submit' value="Actualitzar contrassenya" /&gt;&lt;/td&gt;
  &lt;/form&gt;
  &lt;/table&gt;
  </code></pre>
  
  <p>I've tried with:</p>
  
  <pre><code>&lt;form method="post" action=""&gt;{% csrf_token %}             
      &lt;tr&gt;
          &lt;th&gt; &lt;label&gt; Contrassenya nova &lt;/label&gt; &lt;/th&gt;
      &lt;td&gt; {{form.new_password1}} &lt;td&gt;
  </code></pre>
  
  <p>Now I can control the labels values, but I don't know how to translate the errors...</p>
  
  <p>Thanks for your answers and your patience!</p>