Improve caching a bit more...

* modules/cache/cache_util.c

  (ap_cache_check_freshness): On Cache-Control/Pragma no-cache force
   revalidation by marking the resource as stale.  Unless IgnoreCacheControl
   is set ofcourse.

 
* modules/cache/mod_cache.c

  (cache_url_handler): Remove Cache-Control/Pragma no-cache check and
   accompagnying comment.

  (cache_save_filter): Move FIXME comment to the correct location.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@156480 13f79535-47bb-0310-9956-ffa450edef68