Merge branch 'django_1.11.17'

requirements.txt

@@ -12,7 +12,7 @@ choicesenum==0.2.2
 confusable-homoglyphs==3.0.0
 cryptography==2.3.1
 dj-database-url==0.4.2
-Django==1.11.15
+Django==1.11.17
 django-agpl==4.0.0
 django-auth-ldap==1.3.0
 django-celery-beat==1.1.0