- code cleanup


git-svn-id: https://gnunet.org/svn/gnunet@30987 140774ce-b5e7-0310-ab8b-a85725594a96
- retransmit channel create based on separate timeout tasks


git-svn-id: https://gnunet.org/svn/gnunet@30988 140774ce-b5e7-0310-ab8b-a85725594a96