some bug fixes, added basic camera leveling example for pitch only. Added DCM test. Added better Yaw gain defaults. Split radio and RC inits into two calls. Removed inappropriate auto_trim function.

git-svn-id: https://arducopter.googlecode.com/svn/trunk@1307 f9c3cf11-9bcb-44bc-f272-b75c42450872

ArduCopterMega/Camera.pde

@@ -33,8 +33,9 @@ camera_stabilization()
 
 		APM_RC.OutputCh(CH_5,rc_camera_pitch.radio_out);
 
-
-		//rc_camera_yaw 	= rc_2.control_mix(nav_pitch);
+		//If you want to do control mixing use this function.
+		// set servo_out to the control input from radio
+		//rc_camera_yaw 	= rc_2.control_mix(pitch_sensor);
 		//rc_camera_yaw.calc_pwm();		
 }