dns forward and reverse lookup functionality for http names


git-svn-id: https://gnunet.org/svn/gnunet@33975 140774ce-b5e7-0310-ab8b-a85725594a96
minor changes


git-svn-id: https://gnunet.org/svn/gnunet@33976 140774ce-b5e7-0310-ab8b-a85725594a96