Pull unidata/docker-ubuntu1604-systemd image
Pull unidata/docker-ubuntu1604-systemd image

In test_in_docker.sh, we were previously pulling from "Unidata" (and before that it was "cwardgar"). Now it's "unidata". It may not matter, but I'm just being safe.
cwardgar/nexus-IaC,cwardgar/nexus-IaC,cwardgar/nexus-IaC,cwardgar/nexus-IaC