title: More information on Flot plothover
body: <p>Is it possible to show more information in the Flot plothover than</p>
  
  <pre><code> x = item.datapoint[0]
   y = item.datapoint[1]
  </code></pre>
  
  <p>I will add 3 Informations in my data like: y, x, someinfo</p>
  
  <pre><code>[1337341819000, 7.00000000, 3.95000000]
  </code></pre>
  
  <p>First is the date, second an amount and the third is the information, that
  I will show in my hover.</p>