title: d3-funnel rotate funnel labels
body: <p>I've been working with jakezatecky/d3-funnel to create a simple funnel graph.
  I need to be able to rotate the the labels inside the sections.</p>
  
  <p>I tried add </p>
  
  <p><strong>.style('trasform', 'rotate(180reg)')</strong></p>
  
  <p>to the <em>group.append("text")</em></p>
  
  <p>I've created a jsBin sample: <a href="http://jsbin.com/xafomoyume/1/edit?html,js,output" rel="nofollow">http://jsbin.com/xafomoyume/1/edit?html,js,output</a></p>
  
  <p>I need to flip some of the labels and other labels should be rotated 90 degrees to the right.
  If I try to just rotate each font rotates and the text is distorted</p>
  
  <p>Thanks in advance</p>