0.01: New app!
0.02: Allow boot exceptions, e.g. to load DST
0.03: Permit exceptions to load in low-power mode, e.g. daylight saving time.
      Also avoid polluting global scope.
0.04: Enhance menu: enable bluetooth, visit settings & visit recovery
0.05: Enhance menu: permit toggling bluetooth
0.06: Display clock in green when charging, with "charging" text
0.07: Correctly restore full power when the charged threshold is reached