First commit towards replacing pCon-> with someFunc(pCon)

This is accompanied with the removal of dead code in conman.c and else

statusfile.c

@@ -370,13 +370,13 @@ int RestoreStatus(SConnection * pCon, SicsInterp * pSics, void *pData,
   LLDdeleteBlob(self->errList);
   self->errList = LLDstringCreate();
   iRights = SCGetRights(pCon);
-  pCon->iUserRights = usInternal;
+  SCSetRights(pCon,usInternal);
   oldWrite = SCGetWriteFunc(pCon);
   SCSetWriteFunc(pCon, SCNotWrite);
   iRet = exeBufProcessErrList(buffi, pSics, pCon, self->errList);
   restoreOccurred = 1;
   SCSetWriteFunc(pCon, oldWrite);
-  pCon->iUserRights = iRights;
+  SCSetRights(pCon,iRights);
   exeBufDelete(buffi);
   /*
      if we do not override parameterChange here, the backup file