all: Update code to compile with latest time-related changes in ndn-cpp-dev library

Change-Id: I7e859989c833001f49b286d4a9917f4dc740b4a4
diff --git a/daemon/mgmt/status-server.hpp b/daemon/mgmt/status-server.hpp
index 94c8e82..c9a14f5 100644
--- a/daemon/mgmt/status-server.hpp
+++ b/daemon/mgmt/status-server.hpp
@@ -28,11 +28,11 @@
 
 private:
   static const Name DATASET_PREFIX;
-  static const ndn::Milliseconds RESPONSE_FRESHNESS;
+  static const time::milliseconds RESPONSE_FRESHNESS;
 
   shared_ptr<AppFace> m_face;
   Forwarder& m_forwarder;
-  ndn::nfd::Status::Timestamp m_startTimestamp;
+  time::system_clock::TimePoint m_startTimestamp;
 };
 
 } // namespace nfd