smartchicago/chicago-atlas — pull request #59 by derekeder (2013-05-30 18:16:32+00:00)
Title: Jenks cutoffs, dataset disambiguation, 2012 population

* added 2012 population numbers
* using [Jenks natural breaks](http://en.wikipedia.org/wiki/Jenks_natural_breaks_optimization) (thanks @tmcw) for all map category cutoffs
* appending category name to slug for disabmiguation