Merge pull request #2234 from dimagi/cz

don't return orgs that aren't found
Reduce concurrency on celery sms queue
Merge pull request #2236 from dimagi/sms-queue-concurrency

Reduce concurrency on celery sms queue
Only setup sms queue in staging and prod
Merge pull request #2238 from dimagi/sms-queue-fabfile-2

Only setup sms queue in staging and prod
Merge branch 'master' into staging