document on/off parameter in the usual manner and show defaults for SSLHonorCipherOrder, SSLOCSPEnable, SSLOCSPOverrideResponder, and SSLInsecureRenegotiation

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1555424 13f79535-47bb-0310-9956-ffa450edef68