pubsubhubbub/wordpress-pubsubhubbub

<?php
/**
 * The WebSub/PubSubHubbub class
 */
class Pubsubhubbub {
    const DEFAULT_HUBS = array(
        'https://pubsubhubbub.appspot.com',
        'https://pubsubhubbub.superfeedr.com',
        'https://websubhub.com/hub',
    );

    /**
     * Load the plugin textdomain.
     */
    public static function load_textdomain() {
        load_plugin_textdomain( 'pubsubhubbub', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
    }
}