Added an EPA IG scraper.
Merge branch 'master' of github.com:audiodude/inspectors-general
Small cleanups to EPA scraper.
Merge branch 'epa-scraper' of github.com:audiodude/inspectors-general into audiodude-epa-scraper
removing unneeded comments
use since and year, and default to all topic areas
Merge branch 'audiodude-epa-scraper'