Merge pull request #221 from TomasLoow/master

Fix RemovedInDjango40Warning from Signal arguments

Author: ubernostrum

src/django_registration/signals.py

@@ -6,7 +6,9 @@
 from django.dispatch import Signal
 
 # A new user has registered.
-user_registered = Signal(providing_args=["user", "request"])
+# Provided args: user, request
+user_registered = Signal()
 
 # A user has activated his or her account.
-user_activated = Signal(providing_args=["user", "request"])
+# Provided args: user, request
+user_activated = Signal()