Add actions for starting, stopping, and restarting the containers

@ngmiller I'm opening this. I haven't tested it out yet. Do you think there is anything else required for these?
Indeed :) The containerService returns promises which take the callbacks as parameters. I realized too that in the case of Docker API calls that require some body data (i.e. as a POST), we are not wrapping the data as a value for a "Payload" key as defined by the API docs