QPID-5141: always set content object on 0-10 path (unless explicitly asked not to)

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1524505 13f79535-47bb-0310-9956-ffa450edef68
QPID-5143: don't include transport in default url as it overrides any connection option

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1524506 13f79535-47bb-0310-9956-ffa450edef68