Working Draft 0.52

[John Fuller <jfuller@wernervas.com>]

Section 3, Message Format, Figure 4,
What does the acknowledgement message really look like now?

The drawing is very different from the precommittee draft, but I'm 
having trouble
finding discussions about or specifications for the revised 
acknowledgement message.

The drawing shows Fault now built into the header instead of sent as an 
extension
of a SOAP fault.

The drawing also indicates something is above the response in sequence.
Is the message header still part of the acknowledgement?
A timestamp and group id might be useful for troubleshooting
and continue the concept of a "header" element for RM messages.