Copyright for cl-pubmed source package in Xenial

This package was debianized by Kevin M. Rosenberg  in
October 2002.

The upstream source was downloaded from http://pubmed.b9.com/

Upstream Author: Kevin M. Rosenberg 

Copyright (c) 2000-2002 Kevin M. Rosenberg

This code is free software; you can redistribute it and/or modify it
under the terms of the version 2.1 of the GNU Lesser General Public
License as published by the Free Software Foundation.

The GNU Lessor General Public License can be found in your Debian file
system in /usr/share/common-licenses/LGPL-3.