Bump deps

Minor enhancements for the Docker setup

Bump APCu to 5.1.16

Upgrade to Admin 0.6

Add support for php cli in docker-entrypoint

Use shipped php.ini depending on env

Remove abandoned symfony/lts package

Copy only specifically what we need in Dockerfile

Make php-fpm wait for postgres to be ready, even in prod

Upgrade to postgres 10

* Migrating from 1.1.0 to 2.0.1

* default Jest environment

* update client service worker

* migrate admin create-react-app to v2

* update package version check

* react-scripts ^2.0.1 > ^2.0.3

Bump apcu version

Make the Docker build caching more robust

And actually reuse previously built images in CI

Use alpine image for varnish