HBASE-9813 Log splitting doesn't prevent RS creating new hlog file

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1534790 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9737 Corrupt HFile cause resource leak leading to Region Server OOM

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1534854 13f79535-47bb-0310-9956-ffa450edef68