HBASE-9973 Users with 'Admin' ACL permission will lose permissions after upgrade to 0.96.x from 0.94.x or 0.92.x (Himanshu Vashishtha)

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.96@1543178 13f79535-47bb-0310-9956-ffa450edef68