Remove index.php from wiki URL

In httpd.conf: 

   Alias /wiki/index.php /home/rsreese/richardsreese/htdocs/w/index.php
   Alias /wiki /home/rsreese/richardsreese/htdocs/w/index.php

In Localsetting.php: 

   $wgScriptPath       = "/w";
   $wgScript           = "$wgScriptPath/index.php";
   $wgRedirectScript   = "$wgScriptPath/redirect.php";

   ## For more information on customizing the URLs please see:
   ## http://meta.wikimedia.org/wiki/Eliminating_index.php_from_the_url
   ## If using PHP as a CGI module, the ?title= style usually must be used.
   #$wgArticlePath      = "$wgScript/$1";
   $wgArticlePath      = "/wiki/$1";