QPID-5525: [Java Broker Documentation] Add simple JMX documentation: simple guide to connecting with jconsole,
simple jmx client example and MBean summary with links to interfaces source files.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1563336 13f79535-47bb-0310-9956-ffa450edef68