Additional fix for OPENAM-2268, review via email.

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@4948 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
[OPENAM-2235]: Describe the SSO Authentication Flow

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@4949 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d