added main.js to start building map of emitters
added d3 and topoJson scripts to application.html.erb
i updated the emitters table to include county fips id (means you have to re-import the emitters using the same rake task) in order to be able to do a heat map by county_id.  also added primary key ids to all the tables.
added d3-rails to gemfile, working on d3 map
Checking in before dave breaks stuff
about to pull down dan's new changes
started working on sample google map code
about to try to merge d3map branch
fixed merge conflicts with d3map
making a route to send emitters_data from epa_facts_controller to the browser
setting up map
pulled from dan's new branch
i broke it. switching to other branch.
added google map fusion table to main page, but somehow broke the css.
fixed merge conflicts
fixed merge conflicts