DOC-3687: Change help target for enrollment track groups on Studio Group Configs page

Added course level lang attribute for LMS WIP 

Update Studio help tokens following doc reorg for Publisher

Added course level lang attribute for LMS

added lang attribute to Studio

fixed error when trying to get language attribute on course that does not exist

simplified code

added lang attribure to more places in LMS, added migration for language attribute in course_overview

fixing contraints in the database for language attribute

added lang attribute to several more places in LMS and Studio

added lang attribute to discussion and custom pages; cleaned up code

fixed issue that was causing test failures

moved lang attribute higher in tree in two places

[DELAY MERGE] TNL-6319: Upgrade edx-search for ES 1.x upgrade.

edx-ora2 1.4.2 release

This reverts commit 8ca5c11a, reversing
changes made to 1acb5155.

Open Response Assessment tab for Instructor Dashboard - bugfix (prevent loading ORA Block more than one time)

Skip failing tests temporarily

Footer HTML requested from the branding API was including two CSS files, lms-footer.css and lms-footer-edx.css. edx.org pages only require lms-footer-edx.css to render the footer. The template code being removed here appears to have been accidentally left in place during a theming change: https://github.com/edx/edx-platform/commit/c0648ab1642dfaece6f42fba9ce129e695b67b8c\#diff-439477a9ba29f7c208e25b0a535cdabeR80.

ECOM-3655

Bbaker/educator 344

Limit courses and libraries returned for global staff.

move dialog fix

- Keeps platform set default of "Audit" to be backwards compatible and not break stuff
- get COURSE_MODE_DEFAULTS from config if set

EDUCATOR-563

Upgrade pyyaml to 3.12

Removed extraneous instances of track_function

Add keep-instructors option in delete_course management command 

[LEARNER-1183] Prepare program data to be presented on program marketing page

EDUCATOR-292

[LEARNER-1393] Filter program course runs by status

Reorder LMS imports using isort

LEARNER-1375

LEARNER-1375

Revert "Set the MEDIA_ROOT and MEDIA_URL settings in the cms.envs.aws module"

Exclude hidden programs from white label course page and home page

Removed instances of track function

LEARNER-1126, LEARNER-1127

Remove paramiko requirement

Set the MEDIA_ROOT and MEDIA_URL settings in the cms.envs.aws module

Fix valid signature

LEARNER-1366 EcommerceService should be able to provide a link to the basket page that contains multiple products