build: Warnings correction for gcc 4.2

Also in this commit some code style corrections.

Change-Id: Idf2b5b96b328fb3dbea7440362c84d7759a10ec5
Refs: #1429
diff --git a/tests/management/nfd-forwarder-status.cpp b/tests/management/nfd-forwarder-status.cpp
index d881ad1..2523795 100644
--- a/tests/management/nfd-forwarder-status.cpp
+++ b/tests/management/nfd-forwarder-status.cpp
@@ -7,7 +7,7 @@
 #include "management/nfd-forwarder-status.hpp"
 #include "data.hpp"
 
-#include <boost/test/unit_test.hpp>
+#include "boost-test.hpp"
 
 namespace ndn {
 namespace nfd {