QPID-5744: Move management REST API under /api/latest and auxiliary REST services under /service

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1591948 13f79535-47bb-0310-9956-ffa450edef68
QPID-5744: Change web management console to call management REST API under /api/latest and auxiliary REST services under /service. Fix broken UI.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1591949 13f79535-47bb-0310-9956-ffa450edef68