Made some attributes protected to allow inherited classes to use them.

src/dynamixel_motor_group.h

@@ -129,6 +129,7 @@ class CDynamixelMotorGroup
      *
      */
     std::vector<unsigned char> servo_id;
+  protected:
     /* Motion sequence attributes */
     /**
      * \brief 
@@ -155,7 +156,6 @@ class CDynamixelMotorGroup
      *
      */
     CMutex motion_access;
-  protected:
     /**
      * \brief
      *