Ulrich,

> It's much better, thanks.  Unfortunately there's still a number of
> issues -- thanks for you patience in dealing with those.

Looks like i missed some. I'm getting used to the standard, however.
Thanks for reviewing.

> I guess that's OK with me.  I'm wondering why we need the one message
> that's still in there then -- I'd say either we warn whenever we find
> a sequence we don't understand, or we never warn.

In order to make it more transparent to the user, i removed the messages
during the process.

Best Regards,
Luis