title: Multiple Column Family with PutRequest
body: <p>I'm in process of writing a custom HbaseSink for use with Flume-NG 1.3.0, and need to perform a <code>org.hbase.async.PutRequest</code> with multiple column families in the same row. I do not see a constructor or anything similar to <code>Put.add(columnFamily, columnName, value)</code>.</p>
  <p>Can someone shine some light on how I should go about doing this?</p>