Copyright (C)2013-2019 Ian Jackson
Copyright (C)2016-2019 Sean Whitton
+Copyright (C)2018-2019 Frans Spiesschaert
+Copyright (C)2019 Matthew Vernon / Sanger Institute
+Copyright (C)2019 Paul Hardy
Copyright (C)1999-2010 Joey Hess
Copyright (C)2004-2010 Colin Watson