HBASE-10849 Fix increased javadoc warns.(Anoop)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1582832 13f79535-47bb-0310-9956-ffa450edef68
HBASE-10809: HBaseAdmin#deleteTable fails when META region happen to move around same time

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1582841 13f79535-47bb-0310-9956-ffa450edef68