BIGTOP-1498. Add RC Testing to Docker based Bigtop provisioner

Signed-off-by: jay@apache.org <jayunit100>
BIGTOP-1047. Support Puppet 3.x

Signed-off-by: Konstantin Boudnik <cos@apache.org>
BIGTOP-1510.  Minor README update about bigtop-deploy.
BIGTOP-1509. Update deployment README after BIGTOP-1047