* add phpunit as a dev dependency

* add some basic tests for UrlHelper::rewrite_relative()
 * fix UrlHelper::rewrite_relative() to work better on non-absolute
   relative URL paths

vendor/nikic/php-parser/lib/PhpParser/Comment/Doc.php

@@ -0,0 +1,7 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Comment;
+
+class Doc extends \PhpParser\Comment
+{
+}