HBASE-11735 Document Configurable Bucket Sizes in bucketCache (Misty Stanley-Jones)
HBASE-11657 Put HTable region methods in an interface (Carter Page)
HBASE-11682 Explain Hotspotting (Misty Stanley-Jones)
HBASE-11572 Add support for doing get/scans against a particular replica_id (Jeffrey Zhong)
HBASE-11512 Write region open/close events to WAL
HBASE-11568 Async WAL replication for region replicas