0.02: Ensure screen doesn't display garbage at startup
0.03: Show number of satellites while waiting for fix
0.04: Add Maidenhead readout of GPS location
0.05: Refactor to use 'layout' library for multi-device support
0.06: Add number of satellites in view and fix crash with GPS time
0.07: Resolve one FIFO_FULL case and exit App with button press
0.08: Leave GPS power switched on on exit (will switch off after 0.5 seconds anyway)
0.09: Fix FIFO_FULL error
0.10: Show satellites "in view" separated by GNS-system
0.11: Show number of packets received
0.12: Fix number of packets received
0.13: Minor code improvements
