Ensure app is auto-updating with new daily tally data

[brucecrevensten]

I'm unclear how often the Flask container on Elastic Beanstalk will attempt to fetch the data. Need to ensure this is done regularly (every ~8 hours or so).

[brucecrevensten]

Resolved with Beaker, which will invalidate cache every (configurable) amount of time and fetch new results. This works!