Move the NDNPing wrapper method to a helper class.
Also updates GPL header for the current calendar year.
Refs: #3492
Change-Id: Ic4977c33edd0311b140e6db3688afbb182acec9e
diff --git a/ndn/experiment_manager.py b/ndn/experiment_manager.py
index d8ec0eb..1275a96 100644
--- a/ndn/experiment_manager.py
+++ b/ndn/experiment_manager.py
@@ -1,6 +1,6 @@
# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
#
-# Copyright (C) 2015-2017, The University of Memphis,
+# Copyright (C) 2015-2018, The University of Memphis,
# Arizona Board of Regents,
# Regents of the University of California.
#