Licensing changes:

1. add the option the code to be used under GPLv2 or GPLv3; previously only GPLv2 was allowed

2. add the "proxy option" as described in GPLv3 so we can add future licenses without having to bulk-edit everything again :)

3. remove the awkward "exception for MIT code in Mac client" clause; it was unnecessary and confusing.

utils/create.c

@@ -1,11 +1,8 @@
 /*
- * This file Copyright (C) 2010-2014 Mnemosyne LLC
+ * This file Copyright (C) 2012-2014 Mnemosyne LLC
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+ * It may be used under the GNU Public License v2 or v3 licenses,
+ * or any future license endorsed by Mnemosyne LLC.
  *
  * $Id$
  */