Sankey Transitions

Thanks for a great package.

I know very little javascript and it allows me to do all sorts of good things.

I have a request for a modification to the sankey plot. Might it be possible to add a smooth transition with new data?

There seem to be instructions on how to do this here:
http://stackoverflow.com/questions/13603832/sankey-diagram-transition

With an example here https://www.betterment.com/resources/investment-strategy/portfolio-management/portfolio-diversification/