added no warranty clause to code, just to be safe from idiots

main.cpp

@@ -5,9 +5,11 @@
 //  Created by Kristof Toth on 26/06/15.
 //
 //  Copyright © 2015 Kristof Toth <mrtoth@strongds.hu>
-//  This work is free. You can redistribute it and/or modify it under the
-//  terms of the Do What The Fuck You Want To Public License, Version 2,
-//  as published by Sam Hocevar. See http://www.wtfpl.net/ for more details.
+//  This program is free software. It comes without any warranty, to
+//  the extent permitted by applicable law. You can redistribute it
+//  and/or modify it under the terms of the Do What The Fuck You Want
+//  To Public License, Version 2, as published by Sam Hocevar. See
+//  http://www.wtfpl.net/ for more details.
 //
 //  Generalized thread pool class.
 //  ( READ BEFORE USING IN PRODUCTION CODE )