chore(license) update copyrights

LICENSE

@@ -1,4 +1,4 @@
-Copyright © 2005-2022 Kepler Project.
+Copyright © 2005-2013 Kepler Project, 2015-2023 Thijs Schreijer.
 
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation

docs/license.html

@@ -48,17 +48,7 @@ <h1>Copas</h1>
 <h1>License</h1>
 <p>
 Copas is free software: it can be used for both academic and
-commercial purposes at absolutely no cost.
-There are no royalties or GNU-like "copyleft" restrictions.
-Copas qualifies as
-<a href="http://www.opensource.org/docs/definition.html">Open Source</a>
-software.
-Its licenses are compatible with
-<a href="http://www.gnu.org/licenses/gpl.html">GPL</a>.
-Copas is not in the public domain and the
-<a href="http://www.keplerproject.org">Kepler Project</a>
-keep its copyright.
-The legal details are below.</p>
+commercial purposes at absolutely no cost.</p>
 <p>
 The spirit of the license is that you are free to use Copas for
 any purpose at no cost without having to ask us. The only
@@ -74,7 +64,7 @@ <h1>License</h1>
 </p>
 
 <hr />
-<p>Copyright &copy; 2005-2022 Kepler Project.</p>
+<p>Copyright &copy; 2005-2013 Kepler Project, 2015-2023 Thijs Schreijer.</p>
 <p>
 Permission is hereby granted, free of charge, to any person
 obtaining a copy of this software and associated documentation

src/copas.lua

@@ -8,7 +8,7 @@
 -- Contributors: Diego Nehab, Mike Pall, David Burgess, Leonardo Godinho,
 --               Thomas Harning Jr., and Gary NG
 --
--- Copyright 2005-2022 - Kepler Project (www.keplerproject.org)
+-- Copyright 2005-2013 - Kepler Project (www.keplerproject.org), 2015-2023 Thijs Schreijer
 --
 -- $Id: copas.lua,v 1.37 2009/04/07 22:09:52 carregal Exp $
 -------------------------------------------------------------------------------
@@ -99,7 +99,7 @@ local copas = setmetatable({},{
 })
 
 -- Meta information is public even if beginning with an "_"
-copas._COPYRIGHT   = "Copyright (C) 2005-2022 Kepler Project"
+copas._COPYRIGHT   = "Copyright (C) 2005-2013 Kepler Project, 2015-2023 Thijs Schreijer"
 copas._DESCRIPTION = "Coroutine Oriented Portable Asynchronous Services"
 copas._VERSION     = "Copas 4.6.0"