nlsr: removed references to ndn-cxx/common aliases and improved namespacing

Change-Id: I65e4691305b0157f334fc68d96998c119ef8b03b
refs: #3406
diff --git a/tests/test-adjacency-list.cpp b/tests/test-adjacency-list.cpp
index 9a46a1c..465fd9a 100644
--- a/tests/test-adjacency-list.cpp
+++ b/tests/test-adjacency-list.cpp
@@ -19,8 +19,9 @@
  * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  **/
 
-#include "adjacency-list.hpp"
+#include "common.hpp"
 
+#include "adjacency-list.hpp"
 #include "adjacent.hpp"
 #include "conf-parameter.hpp"