Merge branch 'fix-celery-args' into 'master'

fixed celery start variable

See merge request rc/self-reg-form!29

tasks.py

@@ -11,7 +11,7 @@ sys.path.append(vars.rabbitmq_agents_loc)
 import rc_util
 
 broker_url = vars.broker_url
-celery = Celery('flask_user_reg', broker=broker_url)
+celery = Celery(vars.celery_app, broker=broker_url)
 
 socketio = SocketIO(message_queue=vars.message_queue)
 timeout = 30