RE: Has the semantics for Modules changed?

>Our current definition of Module says to me "Handler 
>Specification". I can imagine also cases where a single 
>document specifies multiple, related Handlers.

Minor correction - Module says: "Handler(s) and Block(s) specification".
As an example, I can write a simple authentication module specifying

  * A block carrying the challenge
  * A block carrying the credentials
  * A handler that can parse challenges and generate credentials
  * A handler that can parse credentials and generate challenges

This might of course be implemented in a symmetrical manner so that both
parties can do both but that is an implementation choice.

Henrik