- Update to version 3.9.0:
* return of the --execute-command flag with slightly adjusted semantics,
* a new system for setting terminal parameters with yaml files and various fixes
* Fix custom label not working
* fix fullscreen using pointer on several monitors
* Add TERM_PROGRAM environment variable like other well-known terminals
* Add open link under terminal cursor
* Fix split terminal did not preverse font scale
* Save layout when splitting/closing split panes
* Add command line flag to get tab number/position from UUID
* Reintroduce execute_command dbus hook