title: yAxis Categories on Scatter Plot
body: <p>Highcharts' inferred categories for the yAxis aren't working like I'd expect.  Setting
  <code>yAxis: { type: 'category' }</code> and naming data points <code>{ name: 'Green', y: 1, x: 2 }</code> doesn't set the yAxis labels to the name 'Green'.  Is it possible to do this?  What am I doing wrong?</p>
  
  <p><a href="http://jsfiddle.net/aaronogan/TkMjZ/242/" rel="nofollow">Fiddle</a></p>