Based on Nico Williams' case-sensitive email problem, make sure

that usernames and emails are compared ignoring case when logging
in.
 - Legacy-Id: 925

ietf/bin/import-users

@@ -94,7 +94,7 @@ while line != '':
 		t = user
 		if add:
 		    t += "%d" % ( add )
-		u = User.objects.get(username = t)
+		u = User.objects.get(username__iexact = t)
 	    except User.DoesNotExist:
 		u = None
 		user = t

ietf/ietfauth/auth.py

@@ -27,9 +27,9 @@ class EmailBackend(ModelBackend):
     def authenticate(self, username=None, password=None):
 	try:
 	    if email_re.search(username):
-                user = User.objects.get(email=username)
+                user = User.objects.get(email__iexact=username)
 	    else:
-		user = User.objects.get(username=username)
+		user = User.objects.get(username__iexact=username)
 	except User.DoesNotExist:
 	    return None
 	if crypt_check_password(user, password):