fw: NccStrategy remembers only best face

refs #1961

Strategy::beforeSatisfyPendingInterest is renamed to
Strategy::beforeSatisfyInterest, so as to match the semantics of this trigger.
This is a backwards-incompatible change that requires function renaming in
all subclasses of Strategy class.

LimitedIo::afterOp gets a bugfix that allows it to be invoked out of
LimitedIo::run without leaving io_service unusable.

Change-Id: Ia4c632beb62c554724b83846a3d6358ae08779ad
diff --git a/daemon/fw/strategy.cpp b/daemon/fw/strategy.cpp
index fd6ac5f..96f132f 100644
--- a/daemon/fw/strategy.cpp
+++ b/daemon/fw/strategy.cpp
@@ -1,11 +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
+ * 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
  *
  * This file is part of NFD (Named Data Networking Forwarding Daemon).
  * See AUTHORS.md for complete list of NFD authors and contributors.
@@ -20,7 +21,7 @@
  *
  * You should have received a copy of the GNU General Public License along with
  * NFD, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
- **/
+ */
 
 #include "strategy.hpp"
 #include "forwarder.hpp"
@@ -44,10 +45,10 @@
 }
 
 void
-Strategy::beforeSatisfyPendingInterest(shared_ptr<pit::Entry> pitEntry,
-                                       const Face& inFace, const Data& data)
+Strategy::beforeSatisfyInterest(shared_ptr<pit::Entry> pitEntry,
+                                const Face& inFace, const Data& data)
 {
-  NFD_LOG_DEBUG("beforeSatisfyPendingInterest pitEntry=" << pitEntry->getName() <<
+  NFD_LOG_DEBUG("beforeSatisfyInterest pitEntry=" << pitEntry->getName() <<
     " inFace=" << inFace.getId() << " data=" << data.getName());
 }