- ignore gnunet-ats-sim


git-svn-id: https://gnunet.org/svn/gnunet@31994 140774ce-b5e7-0310-ab8b-a85725594a96
several fixes and comments

git-svn-id: https://gnunet.org/svn/gnunet@31995 140774ce-b5e7-0310-ab8b-a85725594a96