cpettitt/dagre-d3 — pull request #57 by jgallen23 (2014-06-24 00:53:21+00:00)
Title: Feature/hrefs and fills

Added ability to pass in node fill color and link when clicking on node. I'm fairly new to d3, so I wasn't sure the best way to add a clickable class to the root node. That is mainly used for changing the cursor when hovering.