code: public static World start(final String name, final java.util.Properties properties) {
      return start(name, Configuration.defineWith(properties));
    }
docs: Answers a new {@code World} with the given {@code name} and that is configured with
  the contents of the properties.
  @param name the String name to assign to the new {@code World} instance
  @param properties the java.util.Properties used for configuration
  @return {@code World}