HBASE-11465 [VisibilityController] Reserved tags check not happening for Append/Increment. (Anoop)
HBase-11315: Keeping MVCC for configurable longer time
HBASE-11473 Add BaseWALObserver class
HBASE-11458 NPEs if RegionServer cannot initialize
HBASE-11349 [Thrift] support authentication/impersonation
HBASE-11349 Addendum fixes javadoc warning
HBASE-11481 TableSnapshotInputFormat javadoc wrongly claims HBase 'enforces security'
HBASE-11444 Remove use of reflection for User#getShortName
HBASE-11088 Support Visibility Expression Deletes in Shell (Ram)
HBASE-11477 book.xml has Docbook validity issues (again) (Misty Stanley-Jones)
HBASE-11483 Check the rest of the book for new XML validity errors and fix  (Misty Stanley-Jones)
NOTE: previous patch was mislabeled, and this empty patch has the proper subject and jira #.
HBASE-11477 book.xml Dockbook validity issues (again) (Misty Stanley-Jones)