- inserted command echo into exe manager

exe.w

@@ -88,7 +88,7 @@ The interface to this buffer system comprises:
     * @@return 1 on success, 0 on error
     */
   int exeBufProcess(pExeBuf self, SicsInterp *pSics, 
-	SConnection *pCon, pICallBack pCall);
+	SConnection *pCon, pICallBack pCall, int echo);
   /**
     * retrieves the executing range
     * @@param self The exe buffer to query
@@ -145,6 +145,7 @@ typedef struct __EXEMAN{
 	int exeStackPtr;
 	int runList;
 	pExeBuf uploadBuffer;
+	int echo;
 }ExeMan, *pExeMan;
 @}
 The fields:
@@ -159,6 +160,7 @@ about the operation of this module.
 \item[uploadBuffer] A exe buffer to which data is uploaded. Also serves 
  as a flag if uploading is possible. In this case uploadBuffer must be
 not NULL.   
+\item[echo] Echo flag. When set, SICS commands are echoed.
 \end{itemize}
 
 The public interface to the exe manager are the interpreter interface