Merge r607275, r607403 from trunk:

* Correctly escape the worker route and the worker redirect string in the HTML
  output of the balancer manager.

Reported by SecurityReason.

Submitted by: rpluem
Reviewed by: rpluem, niq, wrowe


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@608061 13f79535-47bb-0310-9956-ffa450edef68