LIL-266. Fix celery app

project/celery.py

@@ -10,7 +10,7 @@ app = Celery('project')
 # the configuration object to child processes.
 # - namespace='CELERY' means all celery-related configuration keys
 #   should have a `CELERY_` prefix.
-app.config_from_object('project.celery_settings')
+app.config_from_object('project.settings', namespace='CELERY')
 
 # Load task modules from all registered Django app configs.
 app.autodiscover_tasks()