HBASE-10809: HBaseAdmin#deleteTable fails when META region happen to move around same time

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1582844 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10862 Update config field names in hbase-default.xml description for hbase.hregion.memstore.block.multiplier

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1582949 13f79535-47bb-0310-9956-ffa450edef68