message: Update __init__.py
  Change URL to new target
diff: @@ -12,7 +12,7 @@ flags.DEFINE_string(
  "Local directory to store datasets in. Usually ~/.xain/datasets",
  )
  flags.DEFINE_string(
  - "datasets_repository", "http://datasets.xain.io", "Remote datasets repository."
  + "datasets_repository", "http://xain-datasets.s3-website.eu-central-1.amazonaws.com", "Remote datasets repository."
  )
  flags.DEFINE_boolean(
  "fetch_datasets",
  