updated README.

Author: agentzh

README.md

@@ -382,9 +382,9 @@ by running:
 
 License
 =======
-    Copyright (c) 2010, FRiCKLE Piotr Sikora <info@frickle.com>
-    Copyright (c) 2009-2010, Xiaozhe Wang <chaoslawful@gmail.com>
-    Copyright (c) 2009-2010, Yichun Zhang <agentzh@gmail.com>
+    Copyright (c) 2010-2017, FRiCKLE Piotr Sikora <info@frickle.com>
+    Copyright (c) 2009-2017, Xiaozhe Wang <chaoslawful@gmail.com>
+    Copyright (c) 2009-2017, Yichun Zhang <agentzh@gmail.com>
     All rights reserved.
 
     Redistribution and use in source and binary forms, with or without