display tooltip on unclean stats, ips gh-pages #1
Description
display a tooltip (successes/attempts) when the user hovers over a certain point on the graph.
see if that is possible with the line, or if for each player, a point should be added
if points are added, see here to try and omit lines where they should not be (player has not had actions, in the data this is shown as "")
.defined(function(d) { return d.y; }) // Omit empty values.