Data ingestion refactor and product-by-location API.

Merge pull request #19 from cid-harvard/feature-reverse-treemap-api

/data/locations?product=123 API. Fixes COL-315

Municipality level industry scatterplot API

Merge pull request #16 from cid-harvard/feature-industry-data-muni

Add muni level industry scatterplot API

Industry municipality data

Merge pull request #15 from cid-harvard/feature-industry-data-muni

Industry muni level data import + API

Add population / GDP / GDPpc stuff

Merge pull request #14 from cid-harvard/feature-pop-gdp-data

Add population / GDP importing code and endpoint

Adds industry hierarchy API and import code for new HS data

Merge pull request #13 from cid-harvard/feature-industry-hierarchy-api

Add industry hierarchy API

June 17th initial delivery API

Includes department-level APIs for products and industries.