QPID-4661: Fix broker attribute conversion bug

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1462470 13f79535-47bb-0310-9956-ffa450edef68
QPID-4677: Fix incorrect attribute names and update web management console UI affected by the changes in the attribute names

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1462471 13f79535-47bb-0310-9956-ffa450edef68
QPID-4677: Add missing broker attributes related to store transactions

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1462472 13f79535-47bb-0310-9956-ffa450edef68