GitLab

rfc2617: The values of the opaque and algorithm fields must be those supplied in WWW-Authenticate response header

* implement retry of EWOULDBLOCK returned send()
* rework channel's listener for clarity
* fix various memory leaks.

clarify existing code about route and record route management.

progress in http implementation

-add max-forward to ack sent by ict

cleaniups

(to be tested).

implement transaction queue in dialog, to avoid rejecting new requests while there is pending transaction within this dialog.
remove circular references between dialog and transaction
optimize dialog matching for client transaction (avoid lookup in dialog list)

enhance nat helper mechanism so that even unchallenged requests can be immediately resubmitted by the refresher if the contact could not be properly set the first time.