HBASE-9721 RegionServer should not accept regionOpen RPC intended for another(previous) server

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1557914 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10274 MiniZookeeperCluster should close ZKDatabase when shutdown ZooKeeperServers (chendihao via enis)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1557919 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10324 refactor deferred-log-flush/Durability related interface/code/naming to align with changed semantic of the new write thread model



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1557939 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10320 Avoid ArrayList.iterator() ExplicitColumnTracker

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1557948 13f79535-47bb-0310-9956-ffa450edef68