[Koha] Z39.50, ILL, and 952$r

[Mark Alexander]

Excerpts from Tomas Cohen Arazi's message of 2017-09-21 23:44:56 +0000:
> Wow. I hadn't noticed that new feature!

I applied the patches to our Koha installation and it does seem to work
when I invoke the server as follows:

  koha-shell <INSTANCE>
  cd /usr/share/koha
  perl bin/z3950_responder.pl --add-item-status=k tcp:@:9999

I realize that patching an installation made from a Debian package is
not recommended, but I'm comfortable with this sort of thing, and I was
in a bit of a hurry to fix the ILL problem.