QPID-5413: [Java Broker] Add virtualhostnode/virtualhost creation dialogue

Work by Andrew MacBean <macbean@apache.org> and me.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1610967 13f79535-47bb-0310-9956-ffa450edef68
QPID-5891: Strengthened testRemoteNodeAdded test and created log subject matcher and improved matcher failure output

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1610968 13f79535-47bb-0310-9956-ffa450edef68