CR-4330 Fixes for OPENAM-4156: Document the new DN Cache control feature; OPENAM-4374: Add a reference for Data Store configuration options

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@10288 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
AME-4314 - CR-4336 - Update list of REST status codes to reflect recent fixes. Updated the docs with a missing status code, and tweaked others to mention potential scenarios.

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@10297 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d