title: Django-registration ImportError: No module named signals
body: <p>I am trying to write a signal listener for django-registration and I am getting the import error: no module named signals. But I could import registration. </p>
  
  <p>Here is my code</p>
  
  <pre><code>from django.contrib.auth import login
  from registration.signals import user_registered
  
  def user_registered_handler(sender, **kwargs):
      """signal intercept for user_login"""
      user = kwargs['user']
      user.is_active = True
      user.save()
      login(user)
  
  user_registered.connect(user_registered_handler)
  </code></pre>
  
  <p>-- Thanks in advance.</p>