New export functionality.

app/Export/Collector/CollectorInterface.php

@@ -0,0 +1,21 @@
+<?php
+/**
+ * CollectorInterface.php
+ * Copyright (C) 2016 Sander Dorigo
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+namespace FireflyIII\Export\Collector;
+
+/**
+ * Interface CollectorInterface
+ *
+ * @package FireflyIII\Export\Collector
+ */
+interface CollectorInterface
+{
+    public function run();
+
+}