Move Ingest Folder default included file extensions into config; closes #835
correct leading characters in yml file
replace deprecated method
Merge pull request #836 from duke-libraries/835-default-included-file-extensions

Move Ingest Folder default included file extensions into config; closes ...
Merge pull request #837 from duke-libraries/816-ingest-batch-object-deprecations

replace deprecated method; closes #816
replace delayed_job with redis/resque; closes #747
Merge pull request #838 from duke-libraries/747-redis-resque

replace delayed_job with redis/resque; closes #747
Implements a Role model (ActiveRecord) as a replacement for the "ability group map".
Closes #724