-fix use after free

git-svn-id: https://gnunet.org/svn/gnunet@31286 140774ce-b5e7-0310-ab8b-a85725594a96
-indentation, doxygen, logging

git-svn-id: https://gnunet.org/svn/gnunet@31287 140774ce-b5e7-0310-ab8b-a85725594a96
-remove find() forking, we pretty much should not need this anymore, and it confused users in the past

git-svn-id: https://gnunet.org/svn/gnunet@31288 140774ce-b5e7-0310-ab8b-a85725594a96