More pedantic changes to create HTML 3.2/4.01 Transitional and

  More pedantic changes to create HTML 3.2/4.01 Transitional and
  XHTML 1.0 Transitional - compliant output.  Note that this model
  is forever broken, since <hr> and <img> tags within a <pre> block
  are, by definition, invalid.  This is sort of mute since we need
  to start creating a table-based autoindex, mostly for utf-8 names
  that map in R-t-L order comixed with L-t-R formatting.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@89751 13f79535-47bb-0310-9956-ffa450edef68