Refactor: split code into several django apps (we call them modules).

dav_events/models/event.py

@@ -254,7 +254,7 @@ class Event(models.Model):
                                                      date=self.get_formated_date())
 
     def get_absolute_url(self):
-        return reverse('dav_events:event_detail', kwargs={'pk': self.pk})
+        return reverse('dav_events:detail', kwargs={'pk': self.pk})
 
     def save(self, implicit_update=False, **kwargs):
         creating = False