switched to Jena TDB store for deposit model
refactored deposit jobs, separating model persistence from tasks
added security checks to deposit update commands and filtered their presentation in JS
added a CDR METS deposit generator for tests
add a separately worked redis queue for memory intensive CDR METS conversion jobs, 1 worker at present
fixing consistency of stages configuration property, on cleanup deposit job
Merge pull request #167 from UNC-Libraries/bagit-resque-tdb-etc

switched to Jena TDB store for deposit model