add support for restart policy in docker.start module

restart policies have been introduced in docker 1.2.0
https://docs.docker.com/v1.2/#release-notes
add support for restart policy in docker.running state

restart policies have been introduced in docker 1.2.0
https://docs.docker.com/v1.2/#release-notes
Merge pull request #16643 from bbinet/docker-restart-policy

Docker restart policy