HBASE-8597 compaction record (probably) can block WAL cleanup forever if region is closed without edits (Sergey)



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HBASE-8573 Store last flushed sequence id for each store of region for Distributed Log Replay

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HBASE-8366 HBaseServer logs the full query

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HBASE-8420 Port HBASE-6874 Implement prefetching for scanners from 0.89-fb

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Merge remote branch 'origin/0.95' into 0.95-gd
Merge remote branch 'origin/0.95-gd' into fb-YAHOO-317-0.95-gd