This is required because AR_WPNav produces an acceleration adjusted desired speed meaning in rare cases where the vehicle is moving in reverse at the time auto is engaged, the desired speed may be temporarily negative as the vehicle slows. In these situations we do not want to allow the vehicle's speed to be nudged to a higher reverse speed if the pilot's throttle stick is all the way down
fix follow endless loop on enter
pass mavlink messages to AP_Follow
separate follow from guided
follow slows based on yaw error
check follow is enabled before entering follow mode
fix order in switch statement when converting from mode number to mode object
remove unused last_log_ms from follow mode
Randy Mackay
Ammarf