Changed the servo angles in the motion pages data type to unsigned type.

The action module cast the value to a signed type.

dynamixel_manager/include/modules/motion_pages.h

@@ -35,7 +35,7 @@ typedef struct // Header Structure (total 64unsigned char)
 
 typedef struct // Step Structure (total 64unsigned char)
 {
-  short int position[PAGE_MAX_NUM_SERVOS];    // Joint position   0~61
+  unsigned short int position[PAGE_MAX_NUM_SERVOS];    // Joint position   0~61
   unsigned char pause;            // Pause time       62
   unsigned char time;             // Time             63
 }TStep;