Expose `EDXNOTES_INTERFACE` from configuration

ECOM-1600 fixing certs button issue.

Add endorsement fields to comment list API

need to urlencode the course_id when constructing the registration re…

Implement student-initiated refunds for external commerce service.

XCOM-306

TE-883 Add ability to specify starting dir for bok-choy tests

ECOM-1590 adding new field in advance_settings.

BUG - Fixes styling issue for course status label on outline page

Fix cyclic import in pavelib

Wrap access to CSM (inside FieldDataCache) to use the new interface

The only consumer of that functionality (the XQueue callback) already
does retries, so newly introduce integrity errors (due to multiple
commiters trying to update a StudentModule) won't break the XQueue
processing pipeline.