Merge pull request #367 from john-hill/PLFM-1828

:)
Merge branch 'release-1.22' into develop
PLFM-1648: save entity + file handle + annotations with Submission
Removed File Handle ID from Submission
Add serialized EntityBundle to Submission
Require eTag for Submissions. Need to add integration test.
WIP: need to fetch Bundle at service level
etag verification on Submission
Require ownership or admin rights to get Submissions
public-access getAllSubmissionStatuses() methods