Many corrections to face/local-face/net-device-face/fib/pit.  Now
interest packets actually go down to ccnx stack.  Also, now it is
possible to manually configure FIB entries.

CcnxFib now is an object aggregated to the node
diff --git a/helper/ccnx-face-container.cc b/helper/ccnx-face-container.cc
index ce595bb..8a7a9e2 100644
--- a/helper/ccnx-face-container.cc
+++ b/helper/ccnx-face-container.cc
@@ -76,16 +76,16 @@
   return m_faces.size ();
 }
 
-void 
-CcnxFaceContainer::SetMetricToAll (uint16_t metric)
-{
-  for (FaceContainer::iterator it=m_faces.begin ();
-       it != m_faces.end ();
-       it++)
-    {
-      (*it)->SetMetric (metric);
-    }
-}
+// void 
+// CcnxFaceContainer::SetMetricToAll (uint16_t metric)
+// {
+//   for (FaceContainer::iterator it=m_faces.begin ();
+//        it != m_faces.end ();
+//        it++)
+//     {
+//       (*it)->SetMetric (metric);
+//     }
+// }
 
 void 
 CcnxFaceContainer::Add (const Ptr<CcnxFace> &face)