Tooltip legened displayed separately for every series

[atais]

Plunker: https://plnkr.co/edit/2UT2UO

Description:
Hovering over the series should show a tooltip with values in given point. It does, but values are shown only for single series. Moving cursor up or down a little shows the other series.

Expected:
Tooltip should present all data in the given point at one time (screen from angular app):

[atais]

I was missing useInteractiveGuideline={true} 😞

works OK with this:

<NVD3Chart type="lineChart" datum={series} x="x" y="y"
                    useInteractiveGuideline={true}
                    containerStyle={{ height: "500px" }}
/>  

[topicus]

@atais Awesome, I'll work on fixing the examples you pointed out in #60