ASE-9468 Previous active master can still serves RPC request when it is trying recovering expired zk session (Feng Honghua)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1522033 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9482 Do not enforce secure Hadoop for secure HBase (Aditya Kishore)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1522036 13f79535-47bb-0310-9956-ffa450edef68
[0.94] Backport HBASE-9309 The links in the backup masters template are bad

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1522054 13f79535-47bb-0310-9956-ffa450edef68
Merge remote branch 'origin/0.94' into 0.94-gd
Merge remote branch 'origin/0.94-gd' into fb-YAHOO-326-0.94-gd