Change in CcnxApp API.  Now callbacks also contain pointer of original
packet (useful to get packet tags, if they exist)

Reflecting changes in PackegTag API

Rescanning bindings

More work on packet-path-weight tracers
diff --git a/model/ccnx-l3-protocol.h b/model/ccnx-l3-protocol.h
index f4b8f61..86743ac 100644
--- a/model/ccnx-l3-protocol.h
+++ b/model/ccnx-l3-protocol.h
@@ -118,9 +118,6 @@
   virtual Ptr<CcnxFace>
   GetFaceByNetDevice (Ptr<NetDevice> netDevice) const;
   
-  virtual Ptr<NetDevice>
-  GetNetDeviceByFace (Ptr<CcnxFace> face) const;
-  
   Ptr<CcnxPit> GetPit();
   
   // void ScheduleLeakage();
@@ -210,7 +207,7 @@
   Ptr<CcnxPit> m_pit; ///< \brief PIT (pending interest table)
   Ptr<CcnxFib> m_fib; ///< \brief FIB  
   Ptr<CcnxContentStore> m_contentStore; ///< \brief Content store (for caching purposes only)
-  
+
   // Time    m_bucketLeakInterval;
   // EventId m_bucketLeakEvent;
 };