Oops. That last commit bought in some more stuff from my development
tree that I wasn't quite ready for. It may as well stay in now though.
In order.
- Pull out the code that deals with <segmentedlist>, the regular stylesheets handle that now.
- Change how $email-footer$ is handled. This requires changes to the <lang>/share/sgml/freebsd.dsl files, to come very shortly.
- Redo warning and caution label support. This is no-op, as Norm's sheets don't support this the way I want yet.
- Remove a useless comment.
- Pull out the experimental docinfo stuff, it doesn't work.
- Pull out the special handling of <literallayout>, the regular stylesheets handle that now too.