Update build system

Closes: https://github.com/named-data/repo-ng/pull/2

Change-Id: If5644f6b894d815e3c75c4404d2076fa559d7737
diff --git a/tests/wscript b/tests/wscript
index 0709cf7..430e952 100644
--- a/tests/wscript
+++ b/tests/wscript
@@ -24,7 +24,7 @@
           )
 
         # integrated tests
-        unit_tests_nfd = bld.program(
+        integ_tests = bld.program(
             target='../integrated-tests',
             features='cxx cxxprogram',
             source=bld.path.ant_glob(['integrated/**/*.cpp']),