Allow the AWS elb to run the health check over http
when https is enabled.
Make disabling forces TLS possible.
Simplify nginx config handling on beanstalk by providing
the config directly rather than editing persistent files in place
using sed.

If the DB is using H2 and it's stores outside of docker, then we need
to be polite and safe about how we set permissions on the directory.

* jest setup and simple tests for Button

* add jest to CI

* cleanup

* make eslint play nice