Updated license file to be GPLv2 only

Author: pkittenis

LICENSE.txt

@@ -1,15 +1,14 @@
-Copyright (C) 2012 Panos Kittenis
+Copyright (C) 2012,2013 Panos Kittenis
 
 This library is free software; you can redistribute it and/or
-modify it under the terms of the GNU Lesser General Public
-License as published by the Free Software Foundation; either
-version 2.1 of the License, or (at your option) any later version.
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation, version 2.
 
 This library 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
-Lesser General Public License for more details.
+General Public License for more details.
 
-You should have received a copy of the GNU Lesser General Public
+You should have received a copy of the GNU General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA