[PATCH 1 of 2] style: styles for man page, which suit with the mercurial website

[Yuya Nishihara]

Martin Geisler wrote:
> >> We should make it self-contained and make it work directly with
> >> rst2html. You can include raw files in reStructuredText, so it's easy
> >> to include a header on each page:
> >
> > Do you mean putting local copy of styles.css, mercurial-logo.png,
> > etc.? or just adding links to them?
> 
> I meant to include a copy of them so that the documentation can be
> browsed without requiring an internet connection.

Hmm..., it seems too much to embed everything.
My intention was that when the man pages placed at the mercurial website,
it's nice to have the same navigation.

> Right, but I don't think we should invest too much energy in that since
> I hope we can move to a better template system in the future.
> 
> I would like to move away from the man page-look. Today we assemble the
> reST input files for the man pages and use them for both HTML output
> too. I think we should assemble a reST file for just the man page, and
> then assemble another for the HTML documentation.

It seems great. Something like sphinx can do better.