title: django translation not working by django-rosetta
body: <p>I have installed the django-rosetta for translation, made .po and .mo files through django command </p>
  
  <blockquote>
    <p>django-admin.py makemessages -l ar</p>
  </blockquote>
  
  <p>and translate all words through django-rosetta,</p>
  
  <p>now when i change my language to Arabic from English, it show some words in Arabic and some in English, although i have translated all these words in Arabic,</p>