system: add first bits of Japanese translation

src/www/system_general.php

@@ -34,12 +34,16 @@ require_once("shaper.inc");
 
 function get_locale_list()
 {
-	$locales = array('en_US' => gettext('English'));
+	$locales = array();
+
+	$locales['en_US'] = _('English');
+	$locales['ja'] = _('Japanese');
+
 	asort($locales);
+
 	return $locales;
 }
 
-
 $pconfig['hostname'] = $config['system']['hostname'];
 $pconfig['domain'] = $config['system']['domain'];
 list($pconfig['dns1'],$pconfig['dns2'],$pconfig['dns3'],$pconfig['dns4']) = $config['system']['dnsserver'];