Replace all uses of BOOST_THROW_EXCEPTION with NDN_THROW

Refs: #4834
Change-Id: I6c536cd321fba62d397bf8520f51d2dbba73d908
diff --git a/src/daemon/db-mgr.hpp b/src/daemon/db-mgr.hpp
index a41380a..81ae5ad 100644
--- a/src/daemon/db-mgr.hpp
+++ b/src/daemon/db-mgr.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2019, Regents of the University of California.
+ * Copyright (c) 2014-2020, Regents of the University of California.
  *
  * This file is part of NDNS (Named Data Networking Domain Name Service).
  * See AUTHORS.md for complete list of NDNS authors and contributors.
@@ -20,7 +20,7 @@
 #ifndef NDNS_DAEMON_DB_MGR_HPP
 #define NDNS_DAEMON_DB_MGR_HPP
 
-#include "config.hpp"
+#include "common.hpp"
 #include "rrset.hpp"
 #include "zone.hpp"
 
@@ -46,7 +46,7 @@
  *
  * @note Method names follow MongoDB convention: insert/remove/find/update
  */
-class DbMgr : noncopyable
+class DbMgr : boost::noncopyable
 {
 public:
   /**