https://jira.deutsche-digitale-bibliothek.de/browse/DDBNEXT-1321: deactivated sanitizer
Merge remote-tracking branch 'origin/DDBNEXT-1321' into release/4.3.1
https://jira.deutsche-digitale-bibliothek.de/browse/DDBNEXT-1323: Read property to switch menu item "Exhibitions" on/off dynamically
Merge remote-tracking branch 'origin/DDBNEXT-1323' into release/4.3.1
Bumped version number to 4.3.1
Merge branch 'release/4.3.1'