Fix for AME-526: Fix documentation on using realms for multiple tenants

Moved what we had to Wiki, https://wikis.forgerock.org/confluence/display/openam/Test+Multi-Tenant+Setup+with+Realms, noting issues in this doc concerning production scenarios.

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@4604 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
Fix for OPENAM-507
re-fixing getServerInfo.jsp to work with non-default chain configurations

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@4605 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d