Extract some more data through the server load API:

* include/httpd.h (struct ap_sload_t): Add bytes_served, access_count
  fields.

* server/util.c (ap_get_sload): Fill in those fields.

Submitted by: Jan Kaluza <jkaluza redhat.com>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1393338 13f79535-47bb-0310-9956-ffa450edef68