Allow real-valued columns to be turned asfactor() from Python, as long as they are integers.
Allow real-valued columns to be turned asfactor() from Python, as long as they are integers.

spennihana/h2o-3,mathemage/h2o-3,spennihana/h2o-3,mathemage/h2o-3,h2oai/h2o-3,michalkurka/h2o-3,mathemage/h2o-3,spennihana/h2o-3,h2oai/h2o-3,michalkurka/h2o-3,h2oai/h2o-3,spennihana/h2o-3,michalkurka/h2o-3,h2oai/h2o-dev,h2oai/h2o-dev,mathemage/h2o-3,h2oai/h2o-3,h2oai/h2o-3,mathemage/h2o-3,michalkurka/h2o-3,h2oai/h2o-dev,spennihana/h2o-3,h2oai/h2o-dev,spennihana/h2o-3,h2oai/h2o-dev,h2oai/h2o-3,michalkurka/h2o-3,michalkurka/h2o-3,h2oai/h2o-dev,mathemage/h2o-3,h2oai/h2o-dev,h2oai/h2o-3,michalkurka/h2o-3,spennihana/h2o-3,mathemage/h2o-3,h2oai/h2o-3