Update README.md

Updated Maintainer from Adam Vessey to Nick Ruest.
Merge pull request #49 from KelliBee123/patch-1

Update README.md
Make importer files temporary and declare usage 💤
Make importers respect collection policies again.
Merge pull request #52 from jordandukart/7.x-ISLANDORA-914

Make importers respect collection policies again.
Merge pull request #51 from jordandukart/7.x-ISLANDORA-1081

Make importer files temporary and declare usage 💤
Address ISLANDORA-1104
Merge pull request #54 from ruebot/7.x-ISLANDORA-1104

Address ISLANDORA-1104
Address ISLANDORA-1104
Merge pull request #56 from ruebot/7.x-ISLANDORA-1104

Address ISLANDORA-1104