model: Another major change: switching to NDN.cxx API for ndn::Name

NDN.cxx code is almost exactly the same, with minor NS-3 specific customizations

Refs #1011 (http://redmine.named-data.net/issues/1011)
diff --git a/utils/trie/trie-with-policy.h b/utils/trie/trie-with-policy.h
index 2d175a0..2e1f883 100644
--- a/utils/trie/trie-with-policy.h
+++ b/utils/trie/trie-with-policy.h
@@ -48,7 +48,7 @@
 
   inline
   trie_with_policy (size_t bucketSize = 10, size_t bucketIncrement = 10)
-    : trie_ ("", bucketSize, bucketIncrement)
+    : trie_ (name::Component (), bucketSize, bucketIncrement)
     , policy_ (*this)
   {
   }