Deploy a public bean-web instance or two

[chadwhitacre]

What we want is the master branch and the current month PR, though at this stage we have so many PRs open it's a mess. One possibility would be to compile this to static pages (beancount might even give us facilities for that), in which case Netlify could be an option (cf. gratipay/grtp.co#171), or some other simple SFTP or Nginx hosting situation (same droplet as grtp.co?).

[chadwhitacre]

I guess we could look into Fava again to see if that is enough of an improvement and not enough of a liability (I'm thinking security since it is dynamic and not just static) to make sense.

We could also look at writing a custom stylesheet over bean-web.