Update language fields.

Signed-off-by: James Cole <thegrumpydictator@gmail.com>

resources/lang/nl_NL/config.php

@@ -1,9 +1,17 @@
 <?php
+/**
+ * config.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.
+ */
 
 return [
     'locale'          => 'nl, Dutch, nl_NL, nl_NL.utf8',
     'month'           => '%B %Y',
     'month_and_day'   => '%e %B %Y',
+    'date_time'       => '%e %B %Y, @ %T',
     'specific_day'    => '%e %B %Y',
     'week_in_year'    => 'week %W, %Y',
     'quarter_of_year' => '%B %Y',