HBASE-12549 Fix TestAssignmentManagerOnCluster#testAssignRacingWithSSH() flaky test
HBASE-12551 Backport HBASE-10955 'HBCK leaves the region in masters in-memory RegionStates if region hdfs dir is lost' to 0.98
HBASE-12346 Scan's default auths behavior under Visibility labels.(Jerry He)
HBASE-12346 Scan's default auths behavior under Visibility labels. - Addendum
Merge remote-tracking branch 'remotes/origin/0.98' into 0.98