- Update to 15.6
* Prevent writing invalid games in the editor
* New feature: Allow automatic rolling of the dice
* New feature: When trading, charity can be prevented
* Explicit language selection with an environment variable: LANG
for Windows, LANGUAGE for Linux
* Better IPv6 support for games found with Avahi
* Support for building with gcc 10
* Cosmetic improvements for many themes
* Use a more modern 'beep' on Linux
* New default: wide-screen layout
* Various improvements in the editor
* Code quality improvements