title: Want to disable signals in Django testing
body: <p>So I have various signals and handlers which are sent across apps. However, when I perform tests / go into 'testing mode', I want these handlers to be disabled.</p>
  
  <p>Is there a Django-specific way of disabling signals/handlers when in testing mode? I can think of a very simple way (of including the handlers within an if TESTING clause) but I was wondering if there was a better way built into Django?...</p>