HBASE-8704 Log the table name in ServerCallable.prepare

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1490724 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8712  HFileLinkCleaner (FSUtils.listStatus) logs too much if
            links do not exists (Matteo via JD)


git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1490869 13f79535-47bb-0310-9956-ffa450edef68