[Doc-SIG] gendoc 0.71 patch

[Mark Hammond]

>We (mostly Robin Friedrich and I) started talking about a major
>facelift to gendoc, basically making it much more layered, which
>would help a lot in doing what you're after. I don't know, maybe
>the docstring should be represented more like a XML DSO?

And dont forget that I have promised to hassle and help on making sure that
these changes support decent cross-references.  We even have the syntax all
nutted out :-)

Mark.