Let's make this more than binary

Created by: lsblakk

I'd like this amazing idea to benefit from more than just women:men identities - let's broaden and allow for people to self-id in other categories then analyze the data accordingly.

eg: instead of pulling num_female_eng and num_eng let's say grab num* and chart that so a company could have (and people could make pull requests for data that looks like):

[company_name] company: Name num_women_eng: 13 num_men_eng: 92 num_transwoman_eng: 2 num_genderqueer_eng: 1 last_updated: 10/20/2013

Then sort this based on whatever is between num_ and _eng to get the columns or whatever.

I could submit a patch for this probably but putting it in an issue in case anyone else wants to tackle this before I get to it. Thanks for doing this!