QPID-6208: [Java Broker] Fix defect that prevents the permitted node list from being written to the store if it is not the first node in the group

(This was caused by a misuse of the features of ACO).

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1640291 13f79535-47bb-0310-9956-ffa450edef68
QPID-6222: [Java Broker] Shutdown the replica virtualhostnode if it runs out of disk space

This resolves a defect left by r1638052

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1640292 13f79535-47bb-0310-9956-ffa450edef68