First step of refactoring code (ccnx prefix => ndn prefix)
diff --git a/model/ndn.cc b/model/ndn.cc
new file mode 100644
index 0000000..1083992
--- /dev/null
+++ b/model/ndn.cc
@@ -0,0 +1,49 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2011 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "ns3/assert.h" 
+#include "ns3/node.h" 
+#include "ns3/boolean.h"
+
+#include "ndn.h"
+#include "ndn-face.h"
+#include "forwarding-strategy/ndn-forwarding-strategy.h"
+#include "ndn-interest-header.h"
+#include "ndn-content-object-header.h"
+
+namespace ns3 {
+
+NS_OBJECT_ENSURE_REGISTERED (Ndn);
+
+TypeId 
+Ndn::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("ns3::Ndn")
+    .SetGroupName ("Ndn")
+    .SetParent<Object> ()
+  ;
+  return tid;
+}
+
+Ndn::~Ndn ()
+{
+}
+
+} // namespace ns3