initial feedback for new V1 API

[yang-wei]

I had been talking about major release for past few month and I am working on it. I had been received a lot of feature request or to support additional prop to let user do something and our library exploded and became difficult to maintain.

To sum up what changes are coming:

• axis will be break up as another component and let you decide how to use it
  • double y-axis will be possible now !
  • more configurable axis
• scale will become required property
  • see d3 scale
• we will maintain less code and you will get a lot of control of your graph
• fully supported mouse event (mouseEnter, mouseLeave and mouseClick)

You can see a very basic working bar chart at my development branch (more to come)

• https://github.com/yang-wei/rd3/blob/v1/examples/BarChart.jsx

I would like to hear any idea and request if you have some. Cheers !