Copyright for libgrits source package in Bionic

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Grits
Upstream-Contact: Andy Spencer 
Source: http://pileus.org/grits/

Files: *
Copyright: 2009-2013 Andy Spencer 
License: GPL-3+

Files: src/objects/marching.h
Copyright: 2002, Jamie Zawinski 
      2009-2011, Andy Spencer 
Comment:  Marching cubes implementation based on code from the
 xscreensaver package.
License: GPL-3+

Files: src/objects/marching.c
Copyright: 2002, Jamie Zawinski 
      2009-2011, Andy Spencer 
Comment: Marching cubes implementation by Paul Bourke 
 http://astronomy.swin.edu.au/~pbourke/modelling/polygonise/
License: marching
 Permission to use, copy, modify, distribute, and sell this software and its
 documentation for any purpose is hereby granted without fee, provided that
 the above copyright notice appear in all copies and that both that
 copyright notice and this permission notice appear in supporting
 documentation.  No representations are made about the suitability of this
 software for any purpose.  It is provided "as is" without express or
 implied warranty.

License: GPL-3+
 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 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 program.  If not, see .
 .
 On Debian systems, the full text of the GNU General Public
 License version 3 can be found in the file
 `/usr/share/common-licenses/GPL-3'.