Determine workflow for stats

The `data-scripts` folder (currently in the `contentful` or `jekyll` branches) cleans and merges data from open data philly via a command line python script. We'll need to run these twice per year (a few weeks after each election). Then we'll need to store the results somewhere; either as a file in the repo or as records in contentful.

Stats are things like turnout and registration for each ward (total and for each party).