Fixes for build without config

src/PHPCensor/Plugin/PhpUnit.php

@@ -32,6 +32,14 @@ class PhpUnit extends Plugin implements ZeroConfigPlugin
     /** @var string[] Raw options from the PHPCI config file */
     protected $options = array();
 
+    /**
+     * @return string
+     */
+    public static function pluginName()
+    {
+        return 'php_unit';
+    }
+    
     /**
      * Standard Constructor
      * $options['config']    Path to a PHPUnit XML configuration file.