Merge branch 'bagit-resque' into resume-deposit

Conflicts:
	deposit/src/main/java/edu/unc/lib/deposit/work/DepositSupervisor.java
	deposit/src/main/java/edu/unc/lib/deposit/work/JobStatusFactory.java
	metadata/src/main/java/edu/unc/lib/dl/util/RedisWorkerConstants.java