- Bring htcacheclean into sync with mod_disk_cache. It now has a very basic...

- Bring htcacheclean into sync with mod_disk_cache.  It now has a very basic understanding of the Varied Headers file format, and will cleanup orphaned data files, or Vary Header Files that have expired.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@190537 13f79535-47bb-0310-9956-ffa450edef68