Split Output into Output(Generator) and Transport. Needed for later

switching between different mail transports.

lib/Frs/Output/Transport/StdoutTransport.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Frs\Output\Transport;
+
+class StdoutTransport implements TransportInterface
+{
+    private $content;
+
+    public function setContent($content)
+    {
+        $this->content = $content;
+    }
+
+    public function transmit()
+    {
+        echo $this->content;
+    }
+}