HBASE-11918 TestVisibilityLabelsWithDistributedLogReplay#testAddVisibilityLabelsOnRSRestart sometimes fails due to VisibilityController initialization not being recognized
HBASE-11839 TestRegionRebalance is flakey
HBASE-11919 Remove the deprecated pre/postGet CP hook.
HBASE-11921 Minor fixups that come of testing branch-1 (Stack)
HBASE-11909 Documented how to find the current number of
 regions and why the numbers in the UI might not agree with hbck output
Note on bucketcache needs 0.98.6
HBASE-11923 Potential race condition in RecoverableZookeeper.checkZk() (Lars Hofhansl)