build: Warnings correction for gcc 4.2

Also in this commit some code style corrections.

Change-Id: Idf2b5b96b328fb3dbea7440362c84d7759a10ec5
Refs: #1429
diff --git a/tests-integrated/security/test-validator-config.cpp b/tests-integrated/security/test-validator-config.cpp
index 0e778db..2432739 100644
--- a/tests-integrated/security/test-validator-config.cpp
+++ b/tests-integrated/security/test-validator-config.cpp
@@ -6,11 +6,10 @@
 
 #include "security/validator-config.hpp"
 
-#include <boost/test/unit_test.hpp>
-
 #include "security/key-chain.hpp"
 #include "util/io.hpp"
 
+#include "boost-test.hpp"
 
 using namespace std;