Changes based on comments for AME-1568

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@5161 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
AME-1286, Document the Varnish Cache Policy Agent; third round of suggestions

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@5162 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d