- update to version 2.5.8
* New Chinese (Simplified) translation
* When configuring a station location where only one CQ zone or only one
ITU zone applies, then this value is forced.
* Display of the last usable date of a callsign certificate now shows the
date of the last QSO that can be signed.
* The format of IOTA entries is now checked for validity.
* When a station location is added or edited, an automatic backup is triggered.
* TQSL now accepts "AO-07" for satellite "AO-7".
* Correct handling of the Russian Oblast "YN" - Logbook coded this as "JN"
incorrectly.