Record a delete event after a successful delete

[#80039456]
Merge remote-tracking branch 'origin/app_delete_event' [#80039456]
Update AWS s3 credentials for travis-ci

[#81240912]
Brokers must declare support in order to upgrade plans

[#79739820]
Update copy bits API doc to make endpoint experimental

[#78847148]
Add index to worker name

[#81201540]