* Stop repeating names of common config arguments in docker_container.
* Prefer tls_verify over tls for docker modules and docker_swarm inventory plugin.
* tls and tls_verify are no longer mutually exclusive.
* Share setup code between docker_* modules and docker_swarm inventory plugin.
* Add support for more parameters.
* PEP8.
* Fix typo.
* Rename host -> docker_host.