fix firmware, mpy ack

Author: gbr1

examples/firmware_01/firmware_01.ino

@@ -219,7 +219,7 @@ void loop(){
           msg_size = packeter.packetC1B('x', 'M');
         }
         alvik.serial->write(packeter.msg, msg_size);
-        alvik.disableKinematicsMovement();
+        //alvik.disableKinematicsMovement();
       }
 
     }

src/Arduino_AlvikCarrier.cpp

@@ -765,7 +765,6 @@ void Arduino_AlvikCarrier::lockingMove(const float distance){
 void Arduino_AlvikCarrier::move(const float distance){
     move_pid->reset();
     previous_travel=kinematics->getTravel();
-    actual_direction=1.0;
     if (distance<0){
         move_direction=-1.0;
     }