Make use of logger provided by ndn-cxx

This commit also introduces a basic implmentation of DummyForwarder to
remove dependency on (and uncertainty of) the running instance of NFD.

Change-Id: Iba9fcbf3d3ebb1a5ae47018ad3be5d7d2b9c7462
diff --git a/src/fetcher.cpp b/src/fetcher.cpp
index e2ee6d0..83f8491 100644
--- a/src/fetcher.cpp
+++ b/src/fetcher.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2013-2016, Regents of the University of California.
+ * Copyright (c) 2013-2017, Regents of the University of California.
  *
  * This file is part of ChronoShare, a decentralized file sharing application over NDN.
  *
@@ -28,7 +28,7 @@
 #include <boost/ref.hpp>
 #include <boost/throw_exception.hpp>
 
-INIT_LOGGER("Fetcher");
+_LOG_INIT(Fetcher);
 
 using namespace boost;
 using namespace std;