Except for the Discussion Tab.
TNL-3693, TNL-3365

ECOM-2578

Also adds improved styling for course pacing settings, and unit tests
around query counts for self-paced courses.

ECOM-2650

The receipt page now retrieves data for orders instead of baskets. Going forward baskets will be deleted after an order has been placed, so there should be no permanent references to baskets. Orders will continue to be persisted permanently.

ECOM-2653

* The LMS now also monkey-patches
  xmodule.x_module.descriptor_global_handler_url and
  xmodule.x_module.descriptor_global_local_resource_url so that we can
  get LMS XBlock URLs from the DescriptorSystem. That functionality is
  needed in the block transforms collect() phase for certain XModules
  like Video. For instance, say we want to generate the transcripts
  URLs. The collect phase is run asynchronously, without a user context.

* The URL handler monkey-patching is now done in the startup.py files
  for LMS and Studio. Studio used to do this in the import of
  cms/djangoapps/contentstore/views/item.py. This was mostly just
  because it seemed like a sane and consistent place to put it.

* LmsHandlerUrls was removed, its handler_url and local_resource_url
  methods were moved to be top level functions. The only reason that
  class existed seems to be to give a place to store course_id state,
  and that can now be derived from the block location.

* To avoid the Module -> Descriptor ProxyAttribute magic that we do
  (which explodes with an UndefinedContext error because there is no
  user involved), when examining the block's handler method in
  handler_url, I made a few changes:

** Check the .__class__ to see if the handler was defined, instead of the
   block itself.

** The above required me to relax the check for _is_xblock_handler on the
   function, since that will no longer be defined.

90% of this goes away when we kill XModules and do the refactoring we've
wanted to do for a while.

ECOM-2547

for hanging indent

These endpoints (`edit_circuit` and `save_circuit`) had already been
commented out of `urls.py`, so these views were disabled.

Make the course URL pattern more generic.

Comment newly added functionality.

Fix quality issues.

Address two lint errors, with regex and variable naming.

Changed how we access course_key and course_id.

Replace another instance of self.course.id.to_deprecated_string()

Remove unused import, add missing one.

Improve how the ccx key is extracted from the URL

Use resolve() instead of os.path to get the course_id.

Remove the granting of staff access to coaches.

TNL-3693

ECOM-2657

Squashing private settings import errors leads to wasted developer time when developers expect settings to be in place, and they aren't. This change only loads private settings if the private.py file exists. If there is an error during the import of that file, the application will not start.

ECOM-2653

So apparently, "Image Embedding Extension for Python-Markdown" was never
actually enabled. When it was introduced [1], it was already commented
out!?

[1] 93d15d15

be sure to add a all() to the ORM statement otherwise the select_subclasses() will cause a full table scan/join

Tests all the kwargs. This is in support of #95, and will be followed
by an update to get_student_grade_summary_data which adds a new kwarg.

Django's user model allows email addresses to be blank. However, edx-platform includes a migration requiring that email addresses be unique. Someone in our production environment already had a blank email address, so this migration was failing earlier.

TNL-3223

Also remove useless docstrings where they were added to keep pylint
quiet.

ECOM-2435

PLAT-878