Migrate from docker/machine to machine-drivers/machine

[philips]

FYI, docker-machine is going into maintenance mode. So, this project will likely need to maintain a fork or do something else: docker/machine#4537

[afbjorklund]

@philips : machine has been in maintenance mode for a long time now, we started an organization for the abandoned drivers (like the kvm one) and I suppose that it can be used for "libmachine" as well... ?

See machine-drivers/machine#4
(dhiltgen/docker-machine-kvm#67)

[gbraad]

@philips We are already discussing this with @dlorenc and the rest of the Minikube team. For the moment we have a fork we work from and will investigate a long-term solution. Let's continue the discussion here: machine-drivers/machine#4

[afbjorklund]

Since minishift has already changed, maybe minikube should do the same ?

minishift/minishift#2652

Still using the same machine revision, though. So it is mostly the URL for now.

docker/machine@v0.15.0...machine-drivers:1903531

[tstromberg]

To agree with what @gbraad said - this is on the teams radar for the near future.