What is the simplify-js file required for the LargestRectangle function

[heeya....@gmail.com]

I see in the LargestRectangle code that there is another file that is required for it to run called simplify-js. I looked online and am seeing a pretty popular polyline simplification library by a gitHub user named mourner. Is this the correct file? It is in line 52 of the code on github. (https://github.com/alexandersimoes/d3plus/blob/master/src/geom/largestRect.coffee) Thanks for the advice!

Best,

Heeya