HBASE-12582 Backport HBASE-10881 'Support reverse scan in thrift2' to 0.98 (Ted Yu)
HBASE-12624 Remove rename_snapshot.rb from code as there is no equivalent renameSnapshot api in Admin class (Ashish Singhi)
HBASE-12431 Use of getColumnLatestCell(byte[], int, int, byte[], int, int) is Not Thread Safe (Jingcheng Du)

(cherry picked from commit c45772e76a581838ea89ff303d0ff67ceaa82845)
HBASE-12634 Fix the AccessController#requireGlobalPermission(ns) with NS

Signed-off-by: Matteo Bertozzi <matteo.bertozzi@cloudera.com>
HBASE-12635 Delete acl notify znode of table after the table is deleted (Liu Shaohui)
HBASE-12619 Backport HBASE-11639 (Replicate the visibility of Cells as strings) to 0.98 (Ramkrishna S. Vasudevan)
HBASE-12622 user_permission should require global admin to display global and ns permissions
HBASE-12632 ThrottledInputStream/ExportSnapshot does not throttle
HBASE-12639 Backport HBASE-12565 Race condition in HRegion.batchMutate() causes partial data to be written when region closes
HBASE-10560 Per cell TTLs
HBASE-12642 LoadIncrementalHFiles does not throw exception after hitting hbase.bulkload.retries.number setting