Add docker base image metadata
    
    Currently we don't produce a docker base image that can be used with
    OSBS or via the 'atomic run' command without modification. This
    fixes that and will allow for an automated import of the base images
    into the Fedora Container Registry
    
    Also, fix various missing commas in dict declarations
    
    Signed-off-by: Adam Miller <maxamillion@fedoraproject.org>