QPID-5325: [Java Broker] Add ability to save web management console open tabs in user preferences

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1540470 13f79535-47bb-0310-9956-ffa450edef68
QPID-5326: Fix floating of authentication provider attributes down whilst scrolling the web management console page

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1540471 13f79535-47bb-0310-9956-ffa450edef68