Code clean up (#138)

* Code clean up

* minor

Author: Nyholm

Model/Metadata.php

@@ -139,7 +139,7 @@ public function toArray()
     public function getAllInCategory($category)
     {
         $data = [];
-        foreach ($this->notes as &$note) {
+        foreach ($this->notes as $note) {
             if (!isset($note['category'])) {
                 continue;
             }

Tests/Unit/Catalogue/CatalogueManagerTest.php

@@ -25,7 +25,7 @@ public function testGetMessages()
     {
         $manager = new CatalogueManager();
         $catA = new MessageCatalogue('en', ['messages' => ['a' => 'aTrans', 'b' => 'bTrans']]);
-        $catB = new MessageCatalogue('fr', ['messages' => ['a' => 'aTransFr', 'c' => 'cTransFr']]);
+        $catB = new MessageCatalogue('fr', ['messages' => ['a' => 'aTransFr', 'c' => 'cTransFr', 'd' => 'dTransFr']]);
         $manager->load([$catA, $catB]);
         $messages = $manager->getMessages('en', 'messages');