Revert "Remove docker-compose local install instead of docker-machine"
Revert "Remove docker-compose local install instead of docker-machine"

This reverts commit 66a62e44261350423054ecccb239eca038f2692a.

It turns out this whole approach was flawed, because docker doesn't do
a good job of packaging and distributing docker-compose and
docker-machine via their PPA. Back to curl it is.

(╯°□°)╯︵ ┻━┻

cybera/jenkins-images