* prevent proctoring provider changes after course start

* better comment wording

* add support email to error msg

Switch the dependencies to use openedx-chem from PyPi

Add marketing_url to courseware_api

updated the constraints order

- Updating Python Requirements
- Fix cache key generation to use class name and module

This was stringifying the class object directly, resulting in cache keys
like `:1:<class 'xblock_django.models.XBlockConfiguration'>.xblock_django.api.deprecated_xblocks`
which then cause breakage when Django 2.2.13 validates the keys.

Co-authored-by: edX requirements bot <testeng+edx-requirements-bot@edx.org>

This will let the courseware MFE point at a course's marketing page.

AA-137

Remove pystache_custom dependency.
Upgrade requirements.

https://openedx.atlassian.net/browse/BOM-1670

Completion reduce delayed

remove hacky thing to get fbe info

Added Python API and renamed rest_api folder

[MICROBA-281]

PROD-1444

* Add VEMPipelineIntegration config model
* Add course waffle flag to enable vem pipeline selectively

PROD-1636

* Commits:
  Fix issue w/ staff toolbar's Insights link

since the configuration value does _not_ include the `/courses` bit in
either stage or prod.

Note: The value for prod contains a trailing slash, while stage does not


I tested locally that this should work with either config
(trailing slash or not).

Use content type gating in dates page

Only mark a section as containing gated content if the content is *only* available to full-access learners

BB-1156: Enable changing the build profile used by RequireJS

Enables weekly highlights job for relative dates

* Commits:
  Remove 'View In Studio' link from vertical
  Add Studio and Insights buttons to Instructor Toolbar

[BD-6] Update sorl-thumbnail dependency

* Update check for showing the 'create team?' prompt in topic teams to look in teamset

* fix tests and correct which collection we are checking

* eslint fixes

Co-authored-by: Ben Warzeski <benwarzeski@edX-C02CD0HCLVDM.cable.rcn.com>

Use content type gating in dates banner

Refactor dates_banner_should_display to only return a single value, and to have a clearer set of conditions

Restrict cert api to staff and self user

This reverts commit c3ec8b83, reversing
changes made to 4252b149.

Revert "Use content type gating in dates banner"

Use content type gating in dates banner

Learning Sequence / Course Outline API