- introduced header file dependency check

- improvements in ease drivers
- no "Counting finished" message in tas scan

oxinst.c

@@ -100,7 +100,7 @@ int OxiHandler(void *object)
         goto quit;
       } else if (eab->cmd[2] == 'k') {  /* ?ck */
       } else {
-        eab->tmo = 120;
+        eab->tmo = 120; /* long timeout: the user may block the response with the adjust keys */ 
         if (eab->syntax <= -8) {
           corr = OxiCorrect(eab->ans);
           if (corr) {