title: Confusion about delete Kafka Topic
body: <p>I'm using Kafka 0.8.0, it's Cloudera version.
  When I deleted the topic such as: <code>kafka-topics --zookeeper 10.0.0.11:2181/ --delete --topic test</code>
  it response:</p>
  
  <pre><code>Topic test is already marked for deletion.
  </code></pre>
  
  <p>But afterwards I recreated it, it throw exception as following:</p>
  
  <pre><code>kafka-topics --create --zookeeper 10.0.0.11:2181 --partitions 90 --replication-factor 2 --topic test
  
  Error while executing topic command Topic "test" already exists.
  kafka.common.TopicExistsException: Topic "test" already exists.
  </code></pre>
  
  <p>Any ideas please? How should I delete the topic and it's data.</p>