catalog: implement trust model

Change-Id: I28a9ead71357eb180316cd1707138518b5fb8b88
refs: #3020
diff --git a/wscript b/wscript
index d348f4a..28c51be 100644
--- a/wscript
+++ b/wscript
@@ -90,7 +90,7 @@
         features='cxx',
         source=bld.path.ant_glob(['catalog/src/**/*.cpp'],
                                  excl=['catalog/src/main.cpp']),
-        use='NDN_CXX BOOST JSON MYSQL',
+        use='NDN_CXX BOOST JSON MYSQL SYNC',
         includes='catalog/src .',
         export_includes='catalog/src .'
     )