Fix for OPENAM-2238, review CR-5565 - Support extensibility of auth context classes as described in the SAMLv2 spec

git-svn-id: https://svn.forgerock.org/openam/trunk@11991 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
OPENAM-4951/CR-5741 - When the 'select realms' drop down is empty the placeholder and UI now reflect this.

git-svn-id: https://svn.forgerock.org/openam/trunk@11995 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
OPENAM-4459 CR-5745 Make user profile service attributes configurable

git-svn-id: https://svn.forgerock.org/openam/trunk@11998 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d