Minimal working version

* Upgrade dependencies
* Fix ugettext
* Fix bad urls

core/scss/processor.py

@@ -25,9 +25,9 @@
 
 import os
 import sass
+from urllib.parse import urljoin
 from django.utils.encoding import force_bytes, iri_to_uri
 from django.core.files.base import ContentFile
-from django.utils.six.moves.urllib.parse import urljoin
 from django.templatetags.static import static
 from django.conf import settings
 from core.scss.storage import ScssFileStorage, find_file