- Added separate drivable motors for four circle H, K, L

- Added a listen mode to commandlog in order to support the batchEditor
- Some small fixes to exe* for BatchEditor

rs232controller.w

@@ -69,6 +69,7 @@ The following interface functions are provided:
                                              int errorBufferLen);
 
         int initRS232(prs232 self);
+	void closeRS232(prs232 self);
         prs232 createRS232(char *host, int iPort);
 	void KillRS232(void *pData);
 @}
@@ -102,6 +103,7 @@ directly followed by a read.
  iCode.
 \item[initRS232] tries to close and reopen the RS232 connection. This is 
  useful for the automatic fixing of communication problems encountered.
+\item[closeRS232] closes a network connection but does not delete the datastructure.
 \item[createRS232] creates a new rs232 data structure with all
 parameters at  default values. The connection is NOT opened. 
 \end{description}
@@ -130,6 +132,8 @@ parameters at  default values. The connection is NOT opened.
 #define TIMEOUT       -2702
 #define FAILEDCONNECT -2703
 #define INCOMPLETE    -2704
+#define BADREAD       -2705
+#define BADSEND       -2706
 
 /*----------------------- a data structure ----------------------------*/
 @<rs232dat@>