Add Swift Mailer to send mails

htdocs/includes/swiftmailer/lib/classes/Swift/Signer.php

@@ -0,0 +1,20 @@
+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Base Class of Signer Infrastructure.
+ *
+ *
+ * @author Xavier De Cock <xdecock@gmail.com>
+ */
+interface Swift_Signer
+{
+    public function reset();
+}