CR-1220 Fix for AME-567: Document how to delete OAuth 2.0 tokens

git-svn-id: https://svn.forgerock.org/openam@4116 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
Fix for OPENAM-2129: Admin Guide OAuth 2.0 sequence diagrams overflow PDF pages

git-svn-id: https://svn.forgerock.org/openam@4117 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d