Minimal working version

* Upgrade dependencies
* Fix ugettext
* Fix bad urls

counter/migrations/0013_customer_recorded_products.py

@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 from django.db import migrations, models
 from django.conf import settings