Enable model guarding after doing seeds

Leaving models unguarded can cause all kinds of havoc if someone uses seeds in their tests.
Best to default to reguard after doing the seeds.

database/seeds/DatabaseSeeder.php

@@ -15,5 +15,7 @@ public function run()
         Model::unguard();
 
         // $this->call('UserTableSeeder');
+        
+        Model::reguard();
     }
 }