Streamlined ar drone interface, removed a lot of old cruft, preparing for generic multirotor control

apps/uORB/topics/vehicle_attitude_setpoint.h

@@ -42,7 +42,7 @@
 
 #include <stdint.h>
 #include <stdbool.h>
-#include <uORB.h>
+#include "../uORB.h"
 
 /**
  * @addtogroup topics

apps/uORB/topics/vehicle_status.h

@@ -110,7 +110,8 @@ struct vehicle_status_s
 	bool preflight_gyro_calibration;		/**< true if gyro calibration is requested */
 	bool preflight_mag_calibration;			/**< true if mag calibration is requested */
 
-	bool rc_signal_lost;				/**< true if no operator override channel is available */
+	bool rc_signal_lost;				/**< true if RC reception is terminally lost */
+	bool rc_signal_cutting_off;			/**< true if RC reception is weak / cutting off */
 	uint64_t rc_signal_lost_interval;		/**< interval in microseconds since when no RC signal is available */
 
 	/* see SYS_STATUS mavlink message for the following */