Merge r421287 from trunk:

The number of times elected as well as the i/o
of the workers is useful info to show in the
manager.

Reviewed by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@438564 13f79535-47bb-0310-9956-ffa450edef68