- some reformatting

- markup & <em> -> <var>
- modify the argument list of MultiViewsMatch in order to better reflect
  the possibilities
- add several <override>s and some <seealso>s


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@97833 13f79535-47bb-0310-9956-ffa450edef68