Use timestamp by default

Author: jadb

src/Model/Table/TaggedTable.php

@@ -15,5 +15,6 @@ class TaggedTable extends Table
     public function initialize(array $config)
     {
         $this->table('tags_tagged');
+        $this->addBehavior('Timestamp');
     }
 }

src/Model/Table/TagsTable.php

@@ -17,6 +17,7 @@ public function initialize(array $config)
     {
         $this->table('tags_tags');
         $this->displayField('label');
+        $this->addBehavior('Timestamp');
         if (Plugin::loaded('Muffin/Slug')) {
             $this->addBehavior('Muffin/Slug.Slug');
         }