Font configuration:
- Tweaked font weight selection (#520) to enforce selected boldness.
- Showing font warning on stderr rather than message box if possible (#527).
- Fixed font selection menu on Windows XP.
- Limit automatic row spacing adjustment to negative case, in order to prevent breaking box characters.
Keyboard:
- AltGr+space menu invocation may be overridden by keyboard layout (#542).
Other:
- Escape sequence OSC 7 informs terminal of current working directory, to be cloned on Alt+F2.
- Log file name supports strftime pattern (#546).