commiting
Merge branch 'gh-pages' of github.com:nickmcclellan/dcaction
update fetch_acs to pull more than 50 fields from census and compute ratios
update crosswalk script to compute averages and ratios
Merge branch 'master' of github.com:nickmcclellan/dcaction

Conflicts:
	js/visualization.js
Merge branch 'master' of github.com:nickmcclellan/dcaction