Handle failures in task_status view such that it won't throw 500s.
Handle failures in task_status view such that it won't throw 500s.

frac/celery,mitsuhiko/celery,frac/celery,cbrepo/celery,ask/celery,ask/celery,WoLpH/celery,cbrepo/celery,WoLpH/celery,mitsuhiko/celery