- Remove warning message about multiple saves of hardlinked files

  from find_one.c as it can generate too many warning messages.
06Dec05
- Reset timeout values before select() per patch from
  Frank Sweetser for problems with non-blocking sockets.
- Unlink the state file if either reading or writing it gets
  errors.  Hopefully this will fix Win32 exit problems.
- Add sanity check in append.c to ensure that dcr is not NULL.
  This can happen if multiple drive autochanger SCSI control
  channel and drive indicies do not correspond.