in cleaner, faster code, and it makes it easier to use Pandoc in
other projects, like wikis, that use Text.XHtml. Two functions
are now provided, writeHtml and writeHtmlString: the former outputs
an Html structure, the latter a rendered string. The S5 writer is
also changed, in parallel ways (writeS5, writeS5String). The Html
header is now written programmatically, so it has been removed from
the 'headers' directory. The S5 header is still needed, but the
doctype and some of the meta declarations have been removed, since
they are written programatically. The INSTALL file and cabalize
have been updated to reflect the new dependency on the xhtml package.
git-svn-id: https://pandoc.googlecode.com/svn/trunk@549 788f1e2b-df1e-0410-8736-df70ead52e1b
59065c103f