message: Use the new lock file for shadowbox
diff: @@ -36,7 +36,7 @@ WORKDIR /root/shadowbox
  # Install management service
  COPY build/shadowbox/app app/
  COPY src/shadowbox/package.json .
  -COPY src/shadowbox/yarn.lock .
  +COPY yarn.lock .
  # TODO: Replace with plain old "yarn" once the base image is fixed:
  # https://github.com/nodejs/docker-node/pull/639
  RUN /opt/yarn-v$YARN_VERSION/bin/yarn install --prod
  