Some admin settings hadn't been made translatable.

mod/admin.php

@@ -690,12 +690,12 @@ function admin_page_site(&$a) {
 		'$relocate'=> t('Relocate - WARNING: advanced function. Could make this server unreachable.'),
 		'$baseurl' => $a->get_baseurl(true),
 		// name, label, value, help string, extra data...
-		'$sitename' 		=> array('sitename', t("Site name"), $a->config['sitename'],'UTF-8'),
+		'$sitename' 		=> array('sitename', t("Site name"), $a->config['sitename'],''),
 		'$hostname' 		=> array('hostname', t("Host name"), $a->config['hostname'], ""),
-		'$sender_email'		=> array('sender_email', t("Sender Email"), $a->config['sender_email'], "The email address your server shall use to send notification emails from.", "", "", "email"),
+		'$sender_email'		=> array('sender_email', t("Sender Email"), $a->config['sender_email'], t("The email address your server shall use to send notification emails from."), "", "", "email"),
 		'$banner'		=> array('banner', t("Banner/Logo"), $banner, ""),
-		'$shortcut_icon'	=> array('shortcut_icon', t("Shortcut icon"), get_config('system','shortcut_icon'),  "Link to an icon that will be used for browsers."),
-		'$touch_icon'		=> array('touch_icon', t("Touch icon"), get_config('system','touch_icon'),  "Link to an icon that will be used for tablets and mobiles."),
+		'$shortcut_icon'	=> array('shortcut_icon', t("Shortcut icon"), get_config('system','shortcut_icon'),  t("Link to an icon that will be used for browsers.")),
+		'$touch_icon'		=> array('touch_icon', t("Touch icon"), get_config('system','touch_icon'),  t("Link to an icon that will be used for tablets and mobiles.")),
 		'$info'	=> array('info',t('Additional Info'), $info, sprintf(t('For public servers: you can add additional information here that will be listed at %s/siteinfo.'), get_server())),
 		'$language' 		=> array('language', t("System language"), get_config('system','language'), "", $lang_choices),
 		'$theme' 		=> array('theme', t("System theme"), get_config('system','theme'), t("Default system theme - may be over-ridden by user profiles - <a href='#' id='cnftheme'>change theme settings</a>"), $theme_choices),