AME-2375 - CR-2146 CREST library upgrade

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@6261 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
AME-2375 - CR-2146 CREST library upgrade

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@6263 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d
Fix for OPENAM-2774 - review: CR-2155
It seems after installing a new system, the agentgroup Instance does not
exist for AgentService. Now the upgrade code handles this situation and
carries on.

git-svn-id: https://svn.forgerock.org/openam/trunk/openam@6264 0f4defcf-c51a-4c67-9f44-6fb5eba73c5d