Minor style fixes to improve readability in HMAC authentication
Updating release date
Issue #3084
Update CI_VERSION
Merge tag '2.2.0' into working

Signed-off-by: Florian Pritz <bluewind@xinu.at>
Improve migration error message

Signed-off-by: Florian Pritz <bluewind@xinu.at>
Update NEWS

Signed-off-by: Florian Pritz <bluewind@xinu.at>
Fix black background in thumbnails with transparency

Signed-off-by: Florian Pritz <bluewind@xinu.at>