A comparison of the src directory for three versions of d3. Also see d3 src tree.
forked from syntagmatic's block: d3 src tree transitions
forked from willzjc's block: d3 src tree transitions
Modified http://d3js.org/d3.v2.js to a secure url
Modified http://underscorejs.org/underscore.js to a secure url
https://d3js.org/d3.v2.js
https://underscorejs.org/underscore.js