HBASE-9314. Dropping a table always prints a TableInfoMissingException in the master log

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1520457 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9448. [0.94] Shell needs to fall back after HBASE-9182 if talking to older servers

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.94@1520488 13f79535-47bb-0310-9956-ffa450edef68