Italian translation

Closes #964

Signed-off-by: Graham Campbell <graham@alt-three.com>

resources/lang/it/setup.php

@@ -0,0 +1,23 @@
+<?php
+
+/*
+ * This file is part of Cachet.
+ *
+ * (c) Alt Three Services Limited
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+return [
+    'setup'             => 'Installazione',
+    'title'             => 'Installazione Cachet',
+    'service_details'   => 'Dettagli Servizio',
+    'env_setup'         => 'Installazione Environment',
+    'status_page_setup' => 'Installazione Status Page',
+    'show_support'      => 'Mostrare il supporto per Cachet?',
+    'admin_account'     => 'Account Amministratore',
+    'complete_setup'    => 'Installazione Completata',
+    'completed'         => 'Cachet è stato configurato con successo!',
+    'finish_setup'      => 'Vai alla dashboard',
+];