Fixed numerous XHTML problems that caused validation errors and warnings.
Link elements for Atom and RSS feeds had no end tag. <div> block element
inside <a> in-line element isn't right and caused rendering problems on
Safari. Spurious </div> tag in search forms. Branch entry missing closing
</a> tag.
Basic install:
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
See http://www.selenic.com/mercurial/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.