code: public static World start(final String name) {
      return start(name, io.vlingo.actors.Properties.properties);
    }
docs: Answers a new {@code World} with the given {@code name} and that is configured with
  the contents of the {@code vlingo-actors.properties} file.
  @param name the {@code String} name to assign to the new {@code World} instance
  @return {@code World}