Limit <v2.0 installations to Django 1.10

requirements.txt

@@ -1,6 +1,6 @@
 cffi>=1.8
 cryptography>=1.4
-Django>=1.10
+Django>=1.10,<1.11
 django-debug-toolbar>=1.6
 django-filter>=1.0.1
 django-mptt==0.8.7