v1.11

Relay-safety fix for split: if a frame asserts TX on a band different from the displayed/RX band (split with the transmit VFO on another band, e.g. RX 23cm / TX 2m), the relays now follow the band actually being transmitted. The non-transmitting dual-watch sub-VFO is still ignored during TX. Prevents a mis-set split from sequencing the wrong band's relays.