This removes a lot of the ArduPlane specific cruft left over from the
initial Rover import from ArduPlane, plus fixes a bunch of serious
bugs. For example, the rover was unable to use either compass or gps
for heading - it used just gyros!
There is still a lot of cruft left, but this at least gives a bit
better basis for future work
Added option (hold roll to full right + SW7 ON/OFF) to init_home during the wp_list reset
Add ROV_SONAR_TRIG (default = 200 cm) - tested by Franco
Restart_nav() added and heading bug correction, tested OK in the field
RTL then stop update - Tested OK in the field
Added SONAR detection for obstacle avoidance
Signed-off-by: Jean-Louis Naudin <jlnaudin@gmail.com>
when MANUAL_LEVEL is set to 1, we don't do accelerometer levelling at
startup, and instead used the values saved in the EEPROM. This makes
it easier to do levelling on the bench, or once for a series of
flights for the day