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

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HBASE-10868 TestAtomicOperation should close HRegion instance after each subtest



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HBASE-9120 ClassFinder logs errors that are not

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HBASE-10862 Update config field names in hbase-default.xml description for hbase.hregion.memstore.block.multiplier

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