Merged in feature/from-pantheon (pull request #16)

code from pantheon

* code from pantheon

wp/wp-content/plugins/wordfence/lib/wfInaccessibleDirectoryException.php

@@ -0,0 +1,16 @@
+<?php
+
+class wfInaccessibleDirectoryException extends RuntimeException {
+
+	private $directory;
+
+	public function __construct($message, $directory) {
+		parent::__construct("{$message}: {$directory}");
+		$this->directory = $directory;
+	}
+
+	public function getDirectory() {
+		return $this->directory;
+	}
+
+}