Correct default value for responsive.

Author: Mikaël Capelle

src/View/Helper/BootstrapNavbarHelper.php

@@ -74,7 +74,7 @@ public function create($brand, $options = []) {
 
         $options += [
             'fixed' => false,
-            'responsive' => false,
+            'responsive' => true,
             'static' => false,
             'inverse' => false,
             'fluid' => false