HBASE-10370 Compaction in out-of-date Store causes region split failed

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1559226 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10349 Table became unusable when master balanced its region after table was dropped

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1559313 13f79535-47bb-0310-9956-ffa450edef68