Update of Flume Kudu Sink documentation (Impala table names and sink class names)

Nice documentation exists for using the Flume Kudu Sink at:
https://kudu.apache.org/2016/08/31/intro-flume-kudu-sink.html

Two updates could be made, however, regarding the steps for creating a Flume configuration file (to improve clarity for Impala users and also update sink / producer class names to match their names in 1.4.0-SNAPSHOT):
1) Include a note that the Kudu table name, if created by Impala may take the form of impala::<impala_db_name>.<impala_table_name> - i.e.
Change from:

agent1.sinks.sink1.tableName = stats

Change to:

agent1.sinks.sink1.tableName = impala::default.stats

2) Update the class names of the sink type and sink producer:
Change from:

agent1.sinks.sink1.type = org.apache.flume.sink.kudu.KuduSink

Change to:

agent1.sinks.sink1.type=org.apache.kudu.flume.sink.KuduSink

Change from:

agent1.sinks.sink1.producer = org.apache.kudu.flume.sink.SimpleKuduEventProducer

Change to:

agent1.sinks.sink1.producer=org.apache.kudu.flume.sink.SimpleKuduOperationsProducer