Document Docker 1.2 as requirement.
Document Docker 1.2 as requirement.

joshuacox/docker-freeipa,hitmaker/docker-freeipa,freeipa/freeipa-container,adelton/docker-freeipa,hitmaker/docker-freeipa,goern/docker-freeipa,amishHammer/docker-freeipa,sgallagher/docker-freeipa,goern/docker-freeipa,sgallagher/docker-freeipa,amishHammer/docker-freeipa