[cddlm] updated doc in CVS

There is an updated document on CVS, for those with CVS access. I havent generated the PDF image as I had to turn off images to stop word crashing on image layout. I will send that later tonight. Changes -updated events -reported errors -consistent use of ResourceID -replace most of the inline pictures with (valid) non-normative examples of messages/responses. email/uploaded version to follow in a few hours, steve