added QRMarkup & cleaned up the output

src/Output/QROutputOptionsAbstract.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * Class QROutputOptionsAbstract
+ *
+ * @filesource   QROutputOptionsAbstract.php
+ * @created      17.12.2016
+ * @package      chillerlan\QRCode\Output
+ * @author       Smiley <smiley@chillerlan.net>
+ * @copyright    2016 Smiley
+ * @license      MIT
+ */
+
+namespace chillerlan\QRCode\Output;
+
+/**
+ *
+ */
+abstract class QROutputOptionsAbstract{
+
+	public $type;
+
+	public $eol = PHP_EOL;
+
+	public $cachefile = null;
+
+}