- don't mark duplicate channel_confirm messages as error


git-svn-id: https://gnunet.org/svn/gnunet@31044 140774ce-b5e7-0310-ab8b-a85725594a96
- use cleaner code


git-svn-id: https://gnunet.org/svn/gnunet@31045 140774ce-b5e7-0310-ab8b-a85725594a96
- dont authorize a client to send more data in case a duplicate CHANNEL_ACK is received while the connection buffer is full


git-svn-id: https://gnunet.org/svn/gnunet@31046 140774ce-b5e7-0310-ab8b-a85725594a96