HBASE-8960: TestDistributedLogSplitting - fix testWorkerAbort & testDisallowWritesInRecovering

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1515550 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9262 Make KeyValue.KEY_COMPARATOR default for HFileWriterFactory


git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1515591 13f79535-47bb-0310-9956-ffa450edef68