- do not use SIGUSR1 on SuperMUC


git-svn-id: https://gnunet.org/svn/gnunet@31019 140774ce-b5e7-0310-ab8b-a85725594a96
include nick in cache for debugging


git-svn-id: https://gnunet.org/svn/gnunet@31020 140774ce-b5e7-0310-ab8b-a85725594a96