Test deploying as docker container

[ppazos]

http://nimavat.me/blog/deploy-grails-application-war-to-tomcat-docker-container

http://mrhaki.blogspot.com.uy/2015/10/grails-goodness-run-grails-application.html

[robdyke]

I got the cabolabs-ehrserver running in Docker recently. I am in the process of updating the Dockerfile and Docker.md information and adding docker-compose.yml and will submit a PR.

[ppazos]

@robdyke thanks, please send a PR when you can share your working file. I'll update immediately.

[robdyke]

@ppazos https://github.com/robdyke/cabolabs-ehrserver/tree/docker-contrib

Updating docs at present.