Requeuing deposits on a delay when Fedora becomes unavailable.

Reinitializing web service connections to Fedora from clients when authorization fails because of a connection interruption
Ensuring groups are being forwarded when testing for files that have already been ingested while resuming deposits.
All delayed jobs going to separate DELAYED_PREPARE queue to prevent a key type error since delayed jobs are queued as a sorted list/skip list instead of a normal set.
1 retry on auth failure makes sense to me. This looks good. No way to handle it on the http client layer I think, due to SOAP wrapping of errors..