Copyright for preview.app source package in Xenial

This package was debianized by Gürkan Sengün  on
Fri,  6 Feb 2004 18:24:38 +0100.

It was downloaded from http://home.gna.org/gsimageapps/

Upstream Author: Fabien Vallon 

License:

    Copyright (C) 2003-2005 Fabien Vallon 

    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 2 of
    the License, or (at your option) any later version.

    This program 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 package; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA

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

The debian packaging is
Copyright (c) 2004-2007 Gürkan Sengün 
Copyright (c) 2009-2014 Federico Gimenez Nieto