#300: Define non-final responses

<http://trac.tools.ietf.org/wg/httpbis/trac/ticket/300>

1xx responses are non-final; i.e., the underlying model is that for each request, there are 0 to many non-final responses, and exactly one final response.

This should be made explicit at a high level; it's implied by the definition of 1xx, but never really spelled out anywhere.

(this is almost editorial; I'm assigning for -16)

--
Mark Nottingham   http://www.mnot.net/