- Updated copyright messages on all relevant files

diff --git a/library/xtea.c b/library/xtea.c
index c610a90..5e479d2 100644
--- a/library/xtea.c
+++ b/library/xtea.c
@@ -1,7 +1,8 @@
 /*
  *  An 32-bit implementation of the XTEA algorithm
  *
- *  Copyright (C) 2009  Paul Bakker <polarssl_maintainer at polarssl dot org>
+ *  Copyright (C) 2006-2009, Paul Bakker <polarssl_maintainer at polarssl.org>
+ *  All rights reserved.
  *
  *  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