adding config option to check for feasibility only


git-svn-id: https://gnunet.org/svn/gnunet@33249 140774ce-b5e7-0310-ab8b-a85725594a96
dbg option to autoscale problem


git-svn-id: https://gnunet.org/svn/gnunet@33250 140774ce-b5e7-0310-ab8b-a85725594a96