Inspired by Vox Media's article: Polygon feature design: SVG animations for fun and profit and Mike Bostock's example: Stroke Dash Interpolation.
Modified http://d3js.org/d3.v3.min.js to a secure url
Modified http://d3js.org/queue.v1.min.js to a secure url
https://d3js.org/d3.v3.min.js
https://d3js.org/queue.v1.min.js