n3-charts/line-chart — pull request #103 by andygray (2014-06-26 12:21:11+00:00)
Title: Allow `drawDots` to be specified on a per series basis

We have a requirement to graphs with a mix of series lines with dots/tooltips and not.

![image](https://cloud.githubusercontent.com/assets/1502550/3398220/41ff2328-fd2c-11e3-8fe1-a8c2f582e6aa.png)