Copyright for ranger source package in Xenial

This is Debian's prepackaged version of Ranger, A file manager with an ncurses
frontend written in python.

It was downloaded from http://ranger.nongnu.org/ranger-stable.tar.gz

Upstream Authors:

    Copyright 2009-2015  Roman Zimbelmann 
    Copyright 2010  David Barnett 
    Copyright 2010  Lucas de Vries 
    Copyright 2010  Sitaram Chamarty 
    Copyright 2011-2012  Abdó Roig-Maranges 
    Copyright 2011-2012  M Rawash 
    Copyright 2011  David Pugnasse 
    Copyright 2011  ornicar 
    Copyright 2012  joe 
    Copyright 2012  Serge Broslavsky 
    Copyright 2013-2014  GermainZ 
    Copyright 2013  Emanuel Guevel
    Copyright 2013  Joseph Tannhuber 
    Copyright 2014  Célestin Matte 
    Copyright 2014  Milan Svoboda 
    Copyright 2014  rukai 
    Copyright 2015  Alexander Buddenbrock 
    Copyright 2015  anekos 
    Copyright 2015  bastorran
    Copyright 2015  Delisa Mason 
    Copyright 2015  No Suck 
    Copyright 2015  Randy Nance 
    Copyright 2015  Wojciech Siewierski 

License:

    This program 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 3 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, see .

On Debian systems, the complete text of the GNU General
Public License version 3 can be found in "/usr/share/common-licenses/GPL-3".

Modifications for Debian: Copyright 2010-2015, Vern Sun 
and is licensed under the GPL version 3, see above.