boilerplate: Update copyright year in .cpp files

refs: #3923

Change-Id: I8a46f2634527094d82c85c605384f25ddd172732

src/route/routing-table.cpp

@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2016,  The University of Memphis,
+ * Copyright (c) 2014-2017,  The University of Memphis,
  *                           Regents of the University of California
  *
  * This file is part of NLSR (Named-data Link State Routing).