Parse PDFs into [county-level](http://sos-tn-gov-files.s3.amazonaws.com/TNH91PrimaryTotals.pdf) and [precinct-level](http://sos-tn-gov-files.s3.amazonaws.com/TNH91PrimaryPrecinct.pdf) files. Filenames will be: * `20131008__tn__special__primary__county.csv` (headers: `county`, `office`, `district`, `party`, `candidate`, `votes`) * `20131008__tn__special__primary__precinct.csv` (headers: `county`, `precinct`, `office`, `district`, `party`, `candidate`, `votes`)