HTTP versioning proposal

Here are some thoughts about HTTP versioning (I can provide some more 
precise, infoset+component model wordings, if there is consensus).
I suggest to:
    1) create an http:version element which has a value attribute that 
will contain the HTTP version used
    2) use the [http | wsoap]:binding element as a placeholder for this 
element.
    3) if the http:version element is not present in a description, 
HTTP1.1 is implied.

It makes sense to me to add within the wsoap:binding element, pieces of 
information that are:
    - related to the use of the soap transport protocol (identified via 
the @protocol attribute)
    - applicable to the whole binding and not settable on a 
per-operation basis.
This proposal might also depend on the decision about which HTTP options 
we want to describe (I assume here that only the version information has 
reached consensus).

Here is an illustrating example:
<!-- soap/http binding-->
<wsdl:binding ...>
    <wsoap:binding protocol="http://www.w3.org/2003/05/soap/bindings/HTTP/">
       <http:version value="1.1"/>
       <!-- other http related options if needed -->
    </wsoap:binding>
    ...
</wsdl:binding>
<!-- http binding-->
<wsdl:binding ...>
    <http:binding>
       <http:version value="1.1"/>
       <!-- other options if needed -->
    </http:binding>
    ...
</wsdl:binding>
Thoughts?
    Youenn