add Ipv4 and Udp node capabilities, rework Copy methods to include an extra Node * argument

src/node/capability.h

@@ -1,43 +0,0 @@
-// -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*-
-//
-// Copyright (c) 2006 Georgia Tech Research Corporation
-// All rights reserved.
-//
-// 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: George F. Riley<riley@ece.gatech.edu>
-//
-// Define the base class for all node capabilities.
-// George F. Riley, Georgia Tech, Fall 2006
-
-#ifndef CAPABILITY_H
-#define CAPABILITY_H
-
-// All capabilities must implement a copy method, to allow node subclasses
-// to have a pointer to any subclass of the capability and still copy
-// correctly.
-
-namespace ns3 {
-
-class Node;
-
-class Capability 
-{
-public:
-  virtual ~Capability();
-  virtual Capability* Copy() const = 0;
-};
-
-}//namespace ns3
-#endif