-fix sync signalling for plugin monitoring

git-svn-id: https://gnunet.org/svn/gnunet@34420 140774ce-b5e7-0310-ab8b-a85725594a96
-fix misc monitoring issues

git-svn-id: https://gnunet.org/svn/gnunet@34422 140774ce-b5e7-0310-ab8b-a85725594a96
-bad printf

git-svn-id: https://gnunet.org/svn/gnunet@34423 140774ce-b5e7-0310-ab8b-a85725594a96