EDUCATOR-1448

Modifies paver webpack task to use production configuration in all
non-devstack environments, and a development config in devstack.

LEARNER-1705

LEARNER-2412

LEARNER-1694

Fix a11y failure

Fix header styling

Fix layout issues

Further layout fixes

This has the effect of making the observer poll less regularly, which
allows developers to choose between rapid asset updates and resource
usage.

FEDX-375

TNL-6513

All programs are now managed using the Django admin on the catalog service. This is the first in a series of commits removing use of the old programs service from edx-platform.

ECOM-4422

moment-timezone require config

jasmine test fix, duplicate req. cleanup

This reverts commit acf50c44.

This reverts commit ed80381b, reversing
changes made to 205cb8b3.

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

Simplify paths in karma_cms_squire require paths

Don't use symlinks to include node_modules

TNL-4335

TNL-4335

Resolves conflicts between reverts of pattern library test pages and multi-site comprehensive theming, and the re-introduction of pattern library test pages. Fixes a pipeline rendering test which relied on other tests updating assets. The test now ensures that static assets are available before running.