Un-ignore bin directory
+x on the script and add a shebang
get_boundary: return datetime and number of parts

get_boundary should return the number of parts of a YYYY-MM-DD
date it received so scrape.datetime_to_url can be smart enough
to create the shortest possible URL.
Initial cut at having the scraper work with dates
Move get_inclusive_urls to utils

Make this function a util and make it more general purpose.
Complete do_scrape so it'll actually scrape
Add bin/ to tox, fix up one issue
make a bunch of shit work (sorry, bad commit message, I know)