This update completes several related tasks:

1. It reworks AuditTaskProcessor by breaking up audit log writing, content index update, duplication task generation, and new space notification into separate processors that are then combined into a MultiStepTaskProcessor.
2. It moves all duplication task processing logic out of durastoretaskproducer and into workman.  Specifically it has been moved into DuplicationTaskProducingProcessor and SpaceCreatedNotificationGeneratingProcessor.
3. The durastoretaskproducer module has been removed since it depended on activemq which has now been removed from DuraCloud.