[buildout] Update requirements for Django

buildout.cfg

@@ -16,8 +16,8 @@ develop = .
 versions = versions
 
 [versions]
-django = >=1.9,<1.10
 django-rest-swagger = >=0.3.2,<0.3.3
+django = <2.0
 django-guardian = >=1.3
 djangorestframework = >=3.2,<3.3
 django-activity-stream = >= 0.6.0