- fix echo flag


git-svn-id: https://gnunet.org/svn/gnunet@31774 140774ce-b5e7-0310-ab8b-a85725594a96
- ping every second


git-svn-id: https://gnunet.org/svn/gnunet@31775 140774ce-b5e7-0310-ab8b-a85725594a96