Require Django < 1.9
Require Django < 1.9

There is some code here (or in a dependent app), that isn't ready for
Django 1.9 yet. The current warning is:

	/<venv>/local/lib/python2.7/site-packages/menus/models.py:30:
	RemovedInDjango19Warning: Model class menus.models.CacheKey
	doesn't declare an explicit app_label and either isn't in an
	application in INSTALLED_APPS or else was imported before its
	application was loaded. This will no longer be supported in
	Django 1.9.

Require a Django < 1.9 so this remains a warning and doesn't become a
failure.

nimbis/django-shop-richproduct,nimbis/django-shop-richproduct