Changed the sign of the X axis of the gyroscope to make it coincide with the real robot.

darwin_controller/include/darwin_controller_impl.h

@@ -928,7 +928,7 @@ namespace darwin_controller
         gyro_x=500.0;
       else if(gyro_x<-500.0)
         gyro_x=-500.0;
-      gyro_data[0]=(int32_t)(gyro_x*1000.0);
+      gyro_data[0]=-(int32_t)(gyro_x*1000.0);
       gyro_y=msg->angular_velocity.z*180.0/3.14159;
       if(gyro_y>500.0)
         gyro_y=500.0;