title: Use dotted line for edges in JGraphX
body: <p>I've been using JGraphX for displaying a static graph on a JPanel. So far I've had no problems with it. I drew the graph, customized the style, even added vertex listeners for a custom graph colorization. </p>
  
  <p>Nontheless I need some of my graph edges to use a dotted line instead of the standard one the JGraphX uses.
  Something like this: ------------------------></p>
  
  <p>I've read different posts on SO on JGraphX edge customization but all they pointed out was the changing of the edge style by using mxEdgeStyle Class' constants.</p>
  
  <p>Is there an easy way that JGraphX provides with the dotted line option that I have missed?</p>