Renamed Irish localization folder

program/localization/index.inc

@@ -39,7 +39,7 @@
 	'eu'    => 'Euskara',
 	'fr'    => 'Français', 
 	'gl'    => 'Galician',
-	'ga'    => 'Irish',
+	'ga_IE' => 'Irish',
 	'el'    => 'Greek',
 	'hi'    => 'Hindi',
 	'hr'    => 'Hrvatski',
@@ -79,6 +79,7 @@ $rcube_language_aliases = array(
   'cn' => 'zh_CN',
 	'de' => 'de_DE',
 	'en' => 'en_US',
+	'ga' => 'ga_IE',
 	'nl' => 'nl_NL',
 	'no' => 'nn_NO',
 	'pt' => 'pt_PT',