core: Implementation of the logging module for NFD

ref: #1113

Change-Id: Ifb958ace38610b154841aab4f317b2ea9fde46e9
diff --git a/daemon/common.hpp b/daemon/common.hpp
index c377a65..fc37c02 100644
--- a/daemon/common.hpp
+++ b/daemon/common.hpp
@@ -25,6 +25,8 @@
 #include <list>
 #include <set>
 
+#include "core/logger.hpp"
+
 namespace nfd {
 
 using boost::noncopyable;