v2.2.2 Thesis processing workflow, and better searching in administrative views

Highlights:

• Enables searching for records in several administrative views via fields in linked records. For example, finding submitter records by name of department, or finding transfers by name of submitting user.
• Completes the initial implementation of thesis processing workflows. This includes the ability to remove files attached in error, as well as logic to calculate the publication status of a thesis based on its metadata status.

Full list of merges:

• Enables searching for submitter records by the name of the department or the name of the user (ETD-316 #732 )
• Enables searching for transfer records by submitter name and submitting department (ETD-334 #730 )
• Enables the searching for hold records by the associated author name (ETD-353 #731 )
• Adds the ability to unlink a file from a thesis record, returning it to its original bulk transfer (ETD-307 #725 )
• Implements the calculation of publication status for thesis records, including the issues_found flag (ETD-343 #723 )
• Adds a set of filter buttons based on publication status to the thesis processing queue (ETD-345 #726 )
• Adds a field for the DSpace authority key to the department data model (ETD-347 #728 )
• Updates how holds on theses are presented to processing staff (ETD-341 #727 )