* Work around problem with Docker daemon that sometimes won't find image if prefixed with docker.io repo name.
* When tring library/xxx, docker-py also doesn't sometimes find the image.
* Add changelog.
* Remove docker_* modules from validate-modules ignore list.
* Adjust types of cacert_path, cert_path and key_path.
* Fix type of update_failure_action in docker_swarm_service.
* Move docker_ module_utils into subpackage.
* Remove docker_ prefix from module_utils.docker modules.
* Adding jurisdiction for module_utils/docker to $team_docker.
* Making docker* unit tests community supported.
* Linting.
* Python < 2.6 is not supported.
* Refactoring docker-py version comments. Moving them to doc fragments. Cleaning up some indentations.