Copyright for flatnuke source package in Xenial

This package was debianized by Francesco Pedrini  
on Tue,  1 Mar 2005 23:50:49 +0100.

It was downloaded from http://flatnuke.sourceforge.net

Copyright: (C) 2005

Upstream Authors: Simone Vellei 
		  Marco Segato  (for FlatImageGallery and FlatPool)
		  Massimo Sandolo /usr/share/common-licenses/GPL files.