Address ISLANDORA-1023
Make "lift embargo" more usable in the ingest step context.
Address some code standards issue in the embargo module.
Merge pull request #120 from adam-vessey/7.x-LIB-11

Make "lift embargo" more usable in the ingest step context.
Avoid overwriting with empty results.
Merge pull request #121 from adam-vessey/7.x-COH-48

Avoid overwriting with empty results.
Merge pull request #119 from ruebot/7.x-ISLANDORA-1023

Address ISLANDORA-1023