QPID-5745 : [Java Broker] enforce disconnect of AMQP 0-x connections when authentication is not performed in a timely manner

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1616899 13f79535-47bb-0310-9956-ffa450edef68
QPID-5878 : Address review comments from [~k-wall]

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1616902 13f79535-47bb-0310-9956-ffa450edef68