HBASE-9182 Allow non-admin users to list all table names

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1513923 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9196 Remove dead code related to KeyValue


git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1513963 13f79535-47bb-0310-9956-ffa450edef68