table: NameTree::getEntry

NameTree::get is renamed to NameTree::lookup.
NameTree::getEntry is introduced to return the NameTreeEntry on which a table entry is attached.
tableEntry::m_nameTreeEntry is changed to weak_ptr to avoid circular shared_ptr reference.

refs #3608, #3619

Change-Id: I425b6a2eb5fe3024bbaff4ff766eb6739be54b02
diff --git a/daemon/table/name-tree-entry.hpp b/daemon/table/name-tree-entry.hpp
index d0e3587..378d285 100644
--- a/daemon/table/name-tree-entry.hpp
+++ b/daemon/table/name-tree-entry.hpp
@@ -1,12 +1,12 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014,  Regents of the University of California,
- *                      Arizona Board of Regents,
- *                      Colorado State University,
- *                      University Pierre & Marie Curie, Sorbonne University,
- *                      Washington University in St. Louis,
- *                      Beijing Institute of Technology,
- *                      The University of Memphis
+ * Copyright (c) 2014-2016,  Regents of the University of California,
+ *                           Arizona Board of Regents,
+ *                           Colorado State University,
+ *                           University Pierre & Marie Curie, Sorbonne University,
+ *                           Washington University in St. Louis,
+ *                           Beijing Institute of Technology,
+ *                           The University of Memphis.
  *
  * This file is part of NFD (Named Data Networking Forwarding Daemon).
  * See AUTHORS.md for complete list of NFD authors and contributors.
@@ -110,7 +110,7 @@
   bool
   hasPitEntries() const;
 
-  const std::vector<shared_ptr<pit::Entry> >&
+  const std::vector<shared_ptr<pit::Entry>>&
   getPitEntries() const;
 
   void
@@ -199,7 +199,7 @@
   return !m_pitEntries.empty();
 }
 
-inline const std::vector<shared_ptr<pit::Entry> >&
+inline const std::vector<shared_ptr<pit::Entry>>&
 Entry::getPitEntries() const
 {
   return m_pitEntries;