Fixed: Non-deterministic hash key construction in Stats.pm (bug#10167).
Fixed: Edit Stats - 500 internal Server Error (bug#10161).
Tidied.
Merge branch 'rel-3_3' of git.otrs.com:otrs/otrs into rel-3_3
Fixed: Error shown in SysConfig when Setting PendingDiffTime to 30 Days (bug#10153).
Fixed bug#10121 - QQMails break in OTRS.
Fixed translatable string.
Improved bugfix #10121, consider all charsets distributed by Encode-HanExtra.