Option to include additional details on nodes?

[tminard]

Would it be out of scope if I looked to add a feature to include custom data that would appear on the hover overs?

For example, I have a graph with a line representing order quality over time, however I'd also like to show the number of orders on the hover overs. I dont want to show the number of orders as a line on the graph.

[tiraeth]

Tyler, I recommend waiting some time. Olly is going to rewrite hover to use HTML popups and customizing it will be much more simpler.

[oesmith]

See #134.