UAVCAN update
Deal with zero airspeed measurements
Merge pull request #1312 from PX4/airspeed_fix

Deal with zero airspeed measurements
mavlink_main: raise rates of onboard mode
Merge pull request #1313 from PX4/onboardrates

mavlink_main: raise rates of onboard mode
Attempt at fixing programming timeouts
config_px4fmu-v2_default: include px4flow driver by default
Merge pull request #1314 from PX4/configflow

Include px4flow driver by default
px4flow: removed flow report in driver, just use uORB topic
Merge pull request #1316 from PX4/fix_flowtopic

px4flow: removed flow report in driver, just use uORB topic
Merge remote-tracking branch 'upstream/master' into obcfailsafe
limit warnx output on flight termination