Remove attempts to reverse catalogue URLs from templates

We don't use URLs from the catalogue app. ECOM-5204.

[SOL-1989] Remove duplicate invoices

Upgrade to edx-auth-backends 0.5.2

SOL-1926: Add organization filter on courses.

This resolves migration issues related to the changing of the app's name.

ECOM-5232

Bump auth-backends to 0.5.1

Requires at least PSA 0.2.20, which includes an index on the Association model.

Change edx-django-release-util version.

Add missing basket_addition call.  Handle call to post_checkout with no user=

Set an upper limit of number of coupon codes to 1000.

Fixes

Remove vouchers when switching to bulk enrollment code basket.

Hide empty fields in coupon details view.

Remove seats from coupon serializer.

Add partner code to catalog cache key

Exclude unused URLs from core Oscar apps

[SOL-1930] Add partner to query parameters for course discovery.

[SOL-1946] New error endpoint

Replaces LMS commerce error page.

SOL-1946

[WL-554] Error creating new coupon code

Display the basket bulk enrollment purchase if it's enabled in the settings.