v1.6.1
New features:
- New game mode to use 60 degress turns instead 90 (triangled boards).
- Game modes selector with long 'Go' key press.
- Alternative turns (45 and 120 degress) with long key presses.
- Detection of 45 degrees to make the diagonal runs.
- Advise (LED indication) next advance is expected to be a diagonal.
- Beep for long key press is longer than short key press.
- Firmware version is shown as the first message to the serial console.
- Bluetooth parser understands double char as a long key press (alt function).
- Sound indication on game mode changed.
- LEDs on when executing alternative moves.