add stub login page

procat2/settings.py

@@ -78,6 +78,9 @@ DATABASES = {
     }
 }
 
+AUTHENTICATION_BACKENDS = (
+    'django.contrib.auth.backends.ModelBackend',
+)
 
 # Password validation
 # https://docs.djangoproject.com/en/2.1/ref/settings/#auth-password-validators
@@ -117,4 +120,6 @@ USE_TZ = True
 
 STATIC_URL = '/static/'
 
+LOGIN_REDIRECT_URL = '/'
+
 from .settings_ansible import *