Fixed: Unable to set custom fields for versions using the REST API (#13850).
tagged version 2.3.1
Merged r11757 from trunk.
Updates for 2.3.1 release.
Merged r11592 from trunk.
Merged r11754 from trunk (#12684).
Pevents duplicate accesskeys (#12684).
Restores the bottom action menu.
Merged r11750 from trunk (#12650).