removed FBW mode - no longer needed
added set_throttle_cruise_flag to auto set the throttle value for alt hold
added altitude minimum option for waypoints
added support for relative WPs
added support for Yaw tracking per WP in options bitmask
lowered default sonar kD value
increased minimal value to set the throttle cruise value with CH7 switch
updated README.txt
added additional stock test missions available in CLI
git-svn-id: https://arducopter.googlecode.com/svn/trunk@1856 f9c3cf11-9bcb-44bc-f272-b75c42450872