title: Celery: auto discovery does not find tasks module in app
body: <p>I have the following setup with a fresh installed celery and django 1.4: </p>
  
  <p>settings.py:</p>
  
  <pre><code>import djcelery
  djcelery.setup_loader()
  
  BROKER_HOST = 'localhost'
  BROKER_PORT = 5672
  BROKER_USER = 'user'
  BROKER_PASSWORD = 'password'
  BROKER_VHOST = 'test'
  
  [...]
  
  INSTALLED_APPS = [
      'django.contrib.auth',
      'django.contrib.admin',
      'django.contrib.contenttypes',
      'django.contrib.sessions',
      'django.contrib.sites',
      'django.contrib.staticfiles',
      'djcelery',
      'south',
      'compressor',
      'testapp',
  ]
  </code></pre>
  
  <p>testapp/tasks.py:</p>
  
  <pre><code>from celery.task import task
  
  @task()
  def add(x, y):
      return x + y
  </code></pre>
  
  <p>Message delivery to the celeryd works fine, but the task is always unregistered (so auto discovery does not seem to work correctly here). Only if I import the tasks module in <code>tasks/__init__.py</code> the task is found and I can use it. </p>
  
  <p>Also the documentation was a little confusing about the decorator import, but I think this is the right one now.</p>
  
  <p>Where is the bug in my setup?</p>