Replacing relative imports by absolute imports for all files into com…

Fix footer test failures

Add upgrade section to program detail course cards.

Displays a message and link when a user is enrolled in a program's course run but must upgrade in order to be eligible for the program certificate. ECOM-4220.

This change improves grading performance by combining what had previously been
multiple course tree traversals into a single traversal with combined
filtering logic.

Make this message the same as another almost identical message

Update translations (autogenerated message)

removes text value from span that is intended only to receive focus

AC-519 removing list from ignored a11y check

Show message on progress page when user is in audit mode.

Fix diff cover args

Hamzamunir/tnl 4141 problem creation empty answer not allowed

WL-416: Multi-site comprehensive theming

2. Update COMPREHNSIVE_THEME_DIR to COMPREHENSIVE_THEME_DIRS
3. Update paver commands to support multi theme dirs
4. Updating template loaders
5. Add ENABLE_COMPREHENSIVE_THEMING flag to enable or disable theming via settings
6. Update tests
7. Add backward compatibility for COMPREHEHNSIVE_THEME_DIR

Merge release into master

Revert "Change topic name truncation."

removed edx-icons fallback images for video icons and fully use Font Awesome

This reverts commit d75e6335.

Fix TNL-4392

Convert Discussion Module to XBlock

MA-2531: fix unread_comment_count for 'read' patch

Make program details date formatting consistent with course dashboard

Replacing relative imports by absolute imports for all files into common/test/acceptance/performance directory

Clean up paver arguments

Merge release into master

* Renames discussion_module to discussion_xblock
* Moves common/lib/xmodule/xmodule_discussion to openedx/core/lib/xblock_builtin/xblock_discussion

Performance improvement, this cache is no longer needed thanks
to block_structure caching data.

TNL-4874