- loopback traffic should not touch tunnel code. Mark as a warning, replace with assert in the future.


git-svn-id: https://gnunet.org/svn/gnunet@30998 140774ce-b5e7-0310-ab8b-a85725594a96
- cleanup, get rid of goto


git-svn-id: https://gnunet.org/svn/gnunet@30999 140774ce-b5e7-0310-ab8b-a85725594a96
- cleanup tunnel api
- doxygen


git-svn-id: https://gnunet.org/svn/gnunet@31000 140774ce-b5e7-0310-ab8b-a85725594a96