Copyright for monotone source package in Xenial

Monotone is a collective work, Copyright 2002-2010 by its development team.
Copyright holders are listed in /usr/share/doc/monotone/AUTHORS.gz.
The source file was downloaded from http://www.monotone.ca/downloads/
Upstream authors are reachable at monotone-devel@nongnu.org

This package was debianized by Tomas Fasth  on 2005-04-12,
adopted by Shaun Jackman  on 2006-07-24, and adopted
again by a team reachable at monotone-debian@nongnu.org on 2007-07-10.

Overall license:

   This package is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This package is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA

On Debian systems, the complete text of the GNU General Public License
can be found in '/usr/share/common-licenses/GPL-2'.

The monotone sources contain some files developed by third parties,
that may qualify as "independent and separate works in themselves"
for the purpose of GPLv2 section 2, if separated from monotone itself.
Upstream provides a comprehensive statement of authorship and licensing
for these files; please see /usr/share/doc/monotone/AUTHORS.gz.

The directory /usr/share/doc/monotone/contrib contains files which are
included in the upstream source distribution, and may be useful in
conjunction with monotone proper, but are not considered part of
monotone.  Upstream does not provide definitive copyright and
licensing information for all these files, but asserts that "to the
best of our collective knowledge, all files are available under terms
compatible with the GPL version 2 (*not* necessarily later versions)."