1.00: initial release
1.01: added tap event to scroll METAR and toggle seconds display
1.02: continue showing METAR during AVWX updates (show update status next to time)
re-try GPS fix if it takes too long
bug fix
don't attempt to update METAR if Bluetooth is NOT connected
toggle seconds display on front double-taps (if un-locked) to avoid accidential enabling
