- remove index.html.tw.big5

- rename index.html.tw to index.html.zh
- remove index.html.ltz.utf8
- rename index.html.lu.utf8 to index.html.lb.utf8


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@95198 13f79535-47bb-0310-9956-ffa450edef68