Here's a link to the version 2.0 spec I've put together. It includes 
v2.0 start-up messages for dataEncoder negotiation (used by presentation 
layer) and corrections to MessageType assigned numbers for data headers, 
so impl and spec match. Unfortunately the impl still has a few v2.0 
issues, but v1.0 and vintage are still working and will not change in 
the future, tough perhaps deprecated. I'd welcome any feedback on 
content or accuracy, if anyone had a few cycles to spare ;)

Thank you for your consideration,
Robert

http://jmp.sh/zASyHlK