merge r1635510 from trunk:

more hints for OCSP Stapling:

* when a different cache mechanism is used...
* testing that your server sends an OCSP response


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1635512 13f79535-47bb-0310-9956-ffa450edef68