title: how to get databases list at influxdb in v0.8
body: <p>how to get all databases use http api from influxdb in v0.8?</p>
  
  <p>but I can use this query in v0.9:</p>
  
  <pre><code>curl -G http://localhost:8086/query --data-urlencode "u=todd"  \
  --data-urlencode "p=influxdb4ever" --data-urlencode "q=SHOW DATABASES"
  </code></pre>
  
  <p>I can't get any info on influxdb.com </p>
  
  <p>thx</p>