Using get_classes for models isn't the right way.

The backported version didn't explicitly create the ProductAttribute
instances before assigning and so they didn't save.

This allows updating code in both places, if necessary. Getting Django
1.5 support would be painful otherwise. This also removes the circular
dependency of django-oscar-testsupport on Oscar.

The requirements were merged. The imports were updated
accordingly. Unused imports in the touched files were removed. No
further changes.

Fixes #376

It didn't exist when I wrote patch_settings but now there's not point
having two versions of the same thing.

Fixes #367

* Tests now split into more coherent modules
* Added IDs to forms to help WebTest
* Some refactoring along the way

Now using --spec format which is more readable (most of the time).

ListView doesn't make sense when you are not paginating

The validation on the stockrecord form needed to be removed to allow
group products to be created, which don't have stock records.

Also split them into unit and functional tests.

Plus wrote a few more tests for the partner app

Pushed the form-driven functionality back onto its own page within order
management.  The dashboard index is now static and the page is more
coherent as a whole.

This is probably a breaking change for most people as the migration
history for the order app has been rewritten.  It will take some
fiddling around with south to get your system back in order.

This change is required though as we need to break the links between the
apps.

This allows the flow of statuses for an order to be controlled.

help create orders for testing.