Replace text.
Add failing test for CLI chgrp command with filesets
Partial fix for chgrp error (See #11966)
Query across groups to prevent security violation error
Fix group in CLI chgrp requests with the DoAll command
Add CLI chgrp integration test with a MIF file containing one image
Mark testFilesetAllImages() as xfail
Fix clitest/test_chgrp image check and descriptive comments
Use Pillow instead of PIL

PIL is unofficially not maintained anymore and its installation via pip 1.5 or
later now requires to pass --allow-external PIL --allow-unverified PIL
The proposal of this commit is to use Pillow as a replacement.
Replace PIL by Pillow in misc. logging output
Merge pull request #2081 from joshmoore/rebased/develop/dist-zip-prefix-osx

Fix dual dirs in the mac zip for insight (rebased onto develop)
Add separator to menu.
Remove selection of user in group display.
Review selection of users when switching between views.
Slight improvement to plane_matrix img scaling
merge develop -D org -I include -E exclude: PR 1956 (Login button)
merge develop -D org -I include -E exclude: PR 1960 (Remove cut link 11882)
merge develop -D org -I include -E exclude: PR 1975 (Implemented a hash on BlitzGateway objects)
merge develop -D org -I include -E exclude: PR 2005 (assist #11091: refactor server DB queries for hierarchy navigation)
merge develop -D org -I include -E exclude: PR 2051 (Login redirects #hash. See #11957)