IMG-580 Fixed lookup for description submitter
upgrade ruby version
IMG-457 Reactivating EPUB ingest
IMG-563 New image categories, reorder alphabetically
IMG-591 Upgrade to latest Delayed::Job
IMG-584 Pagination on export is a known issue. Patch until it's fixed.
IMG-457 Removed unnecessary string overrides, fixed JSON parsing for Job details
Merge remote-tracking branch 'origin/develop' into develop
IMG-595 Fixed injection bugs for DAISY
IMG-595 Made some notes for future investigation
IMG-507 Message update
IMG-457 Fixed DAISY identification bug, corrected extraction of titles and unique identifiers from EPUB OPF
IMG-594 Proper EPUB 3 injection implemented; each Content Document is handled separately, and aside elements are used so as not to interfere with any existing figcaptions
IMG-488 added EPUB language
Merging for 4.6.1 sprint