Minimal working version

* Upgrade dependencies
* Fix ugettext
* Fix bad urls

eboutic/models.py

@@ -23,7 +23,7 @@
 #
 
 from django.db import models, DataError
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 from django.utils.functional import cached_property
 from django.conf import settings
 

eboutic/views.py

@@ -33,7 +33,7 @@ from django.views.generic import TemplateView, View
 from django.http import HttpResponse, HttpResponseRedirect
 from django.core.exceptions import SuspiciousOperation
 from django.db import transaction, DataError
-from django.utils.translation import ugettext as _
+from django.utils.translation import gettext as _
 from django.conf import settings
 
 from counter.models import Customer, Counter, ProductType, Selling