docker_version_min: '1.6.0'
docker_py_version_min: '1.2.0'

docker_version_min: '1.9.0'
docker_py_version_min: '1.6.0'

Update docker and docker-py reqs
Update docker and docker-py reqs

Change-Id: I3d452f30304a83cdeb65d8cac0ddef77c58cfeb9
Partially-Implements: blueprint precheck-tasks
