so that characters below 0xff are not converted to numerical entity
references. Also convert '\160' to " ". This should aid readability
and editability of the HTML source. It does presuppose that the HTML
will be served as UTF-8.
git-svn-id: https://pandoc.googlecode.com/svn/trunk@1338 788f1e2b-df1e-0410-8736-df70ead52e1b