Changed the hardcoded (ick) battery lines for RM. Also removed the reference
to PIOS_ADC_GetPin(4) as that pin is no longer available. Finally
changed the default FlightBatterySettings to work out of the box
for the standard recommended sensors.
The module can be configured to enable what's needed from board voltage, battery voltage and battery current measurement.
In GCS the POWER box in system healt will show alarm related to the supply voltage to the board.
If a power warning/critical alarm is raised, the warning condition is left even if the board voltage return to an acceptable value.
Conflicts:
ground/openpilotgcs/share/openpilotgcs/diagrams/default/system-health.svg
shared/uavobjectdefinition/systemalarms.xml
