QPID-5301: support autodeleted exchanges

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1541058 13f79535-47bb-0310-9956-ffa450edef68
QPID-5251: allow policies to be specified that will create topics or queues on demand if they match the specified pattern

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1541059 13f79535-47bb-0310-9956-ffa450edef68