ACM: Adding Pre-Compiler Define for Stabilize Throttle Mode.

ArduCopter/config.h

@@ -96,7 +96,8 @@
   # define HELI_ROLL_FF					0
   # define HELI_YAW_FF					0  
   # define RC_FAST_SPEED 				125
- #endif
+  # define STABILIZE_THROTTLE			THROTTLE_MANUAL
+#endif
 
 
 // optical flow doesn't work in SITL yet
@@ -534,6 +535,11 @@
 #define EARTH_FRAME     0
 #define BODY_FRAME      1
 
+// Stabilize Mode
+#ifndef STABILIZE_THROTTLE
+ # define STABILIZE_THROTTLE		THROTTLE_MANUAL_TILT_COMPENSATED
+#endif
+
 // Alt Hold Mode
 #ifndef ALT_HOLD_YAW
  # define ALT_HOLD_YAW           	YAW_HOLD

ArduCopter/system.pde

@@ -447,7 +447,7 @@ static void set_mode(byte mode)
     	ap.manual_attitude = true;
         set_yaw_mode(YAW_HOLD);
         set_roll_pitch_mode(ROLL_PITCH_STABLE);
-        set_throttle_mode(THROTTLE_MANUAL_TILT_COMPENSATED);
+        set_throttle_mode(STABILIZE_THROTTLE);
         break;
 
     case ALT_HOLD: