BOOKKEEPER-777: Flake in LedgerCloseTest (ivank via fpj)

git-svn-id: https://svn.apache.org/repos/asf/zookeeper/bookkeeper/trunk@1622827 13f79535-47bb-0310-9956-ffa450edef68
BOOKKEEPER-779: jmx reporter for codahale metrics provider (ivank via sijie)

git-svn-id: https://svn.apache.org/repos/asf/zookeeper/bookkeeper/trunk@1622828 13f79535-47bb-0310-9956-ffa450edef68
BOOKKEEPER-718: AuditorLedgerCheckerTest is flakey (ivank via sijie)

git-svn-id: https://svn.apache.org/repos/asf/zookeeper/bookkeeper/trunk@1622830 13f79535-47bb-0310-9956-ffa450edef68