HBASE-8531 TestZooKeeper fails in trunk/0.95 builds

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1482670 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7006 [MTTR] Improve Region Server Recovery Time - Distributed Log Replay

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1482676 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/0.95' into 0.95-gd
Merge remote branch 'origin/0.95-gd' into fb-YAHOO-312-0.95-gd