Start work on man page

Ah, optimism that this would be of use to anyone...

Very loosely based on http://www.linuxjournal.com/article/1158 and
groff_man so far...
Write halfway decent man page

Based on http://www.schweikhardt.net/man_page_howto.html , groff_man
and groff_mom.
Merge branch 'man-pages'