This test is checking behavior that seems to have been specific to the
carbon package from PyPI. Since this is a Python 2-only module, and has
deps that do not exist on Python 3, it should not be run on Python 3.
This does the following:
- Splits states for container/volume/image/network management into four
separate state modules.
- Preserves backward compatibility by making ``docker.image_present``
invoke ``docker_image.present``, etc.
- Changes how Salt detects that a container needs to be replaced.
Instead of comparing each passed argument to the named container's
configuration, it creates a temporary container, and compares that
container to the named container. If the two differ, then the older
container is removed, and the new one is renamed and started, becoming
the named container.
- Removes the unit tests for container management and replaces them with
integration tests.
- Adds unit tests for the new salt.utils.docker
