Merge pull request #5 from level-level/fix-required-params

Fixes required after optional parameters.

Author: NielsdeBlaauw

wp_bem_menu.php

@@ -33,7 +33,7 @@ public function __construct( $css_class_prefix ) {
 
 	// Check for children
 
-	public function display_element( $element, &$children_elements, $max_depth, $depth = 0, $args, &$output ) {
+	public function display_element( $element, &$children_elements, $max_depth, $depth = 0, $args = array(), &$output = '' ) {
 
 		$id_field = $this->db_fields['id'];