build+src: Updating common.hpp to import (std|boost)::(shared_ptr|function|...) into ndn namespace

Also fixing a small bug in wscript.

Change-Id: I8f20caa177cc015b7433d1ecd3db385f533437c6
diff --git a/src/util/logging.hpp b/src/util/logging.hpp
index 3f5848e..3fc1c0a 100644
--- a/src/util/logging.hpp
+++ b/src/util/logging.hpp
@@ -9,7 +9,7 @@
 #ifndef NDN_LOGGING_HPP
 #define NDN_LOGGING_HPP
 
-#include "common.hpp"
+#include "../common.hpp"
 
 #ifdef NDN_CPP_HAVE_LOG4CXX