HBASE-11728 - Data loss while scanning using PREFIX_TREE
DATA-BLOCK-ENCODING (Ram)
HBASE-11753 Document HBASE_SHELL_OPTS environment variable (Misty Stanley-Jones)
HBASE-11757 Provide a common base abstract class for both RegionObserver and MasterObserver
HBASE-11734 Document changed behavior of hbase.hstore.time.to.purge.deletes (Misty Stanley-Jones)