QPID-6044 : [Java Broker] [AMQP 1.0] When the hostname in the open frame does not resolve directly to a vhost, but does resolve via DNS to the local machine, map the connection to the default vhost

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1620570 13f79535-47bb-0310-9956-ffa450edef68