• Remove pggettext so as to not require Python 3.8
• Remove Python 2 unicode support
• Store keys in configuration file as int instead of str
• Use yaml for configuration file instead of json.
• Remove process-dependent rules from built-in rules.
• Handle situation where GTK application cannot be set up in CLI.
• Remove obsolete upower signals.
• Appinfo/metadata fixes including using correct APP_ID.
• Fix bugs in solaar config.
• Add full set of mouse buttons in persistent remappable actions seeting.
• Improve rule behaviour under Wayland and when Xtest or X11 not available.
• Fix up and document dependencies (evdev, Python, ...).