address management


git-svn-id: https://gnunet.org/svn/gnunet@32296 140774ce-b5e7-0310-ab8b-a85725594a96
commit before removing address ids 


git-svn-id: https://gnunet.org/svn/gnunet@32299 140774ce-b5e7-0310-ab8b-a85725594a96