Made save WP the default

Cosmetic updates

ArduCopter/ArduCopter.pde

@@ -1102,8 +1102,7 @@ void update_throttle_mode(void)
 					altitude_error = get_altitude_error();
 
 					// get the AP throttle
-					nav_throttle = get_nav_throttle(altitude_error);//, 250); //150 =  target speed of 1.5m/s
-					//Serial.printf("in:%d, cr:%d, NT:%d, I:%1.4f\n", g.rc_3.control_in,altitude_error,  nav_throttle, g.pi_throttle.get_integrator());
+					nav_throttle = get_nav_throttle(altitude_error);
 
 					// clear the new data flag
 					invalid_throttle = false;

ArduCopter/config.h

@@ -71,7 +71,7 @@
 //
 
 #ifndef CH7_OPTION
-# define CH7_OPTION		CH7_SET_HOVER
+# define CH7_OPTION		CH7_SAVE_WP
 #endif