Default ORA2 storage settings use AWS, so no change required to aws envs.

(cherry picked from commit 0fcdcb02)

Pulling URLs from settings allows us to rely on site configuration overrides in order to support multi-tenancy.

LEARNER-1103

Although we are phasing out our support of OIDC, this particular feature will allow us to eliminate many of the settings we
share across services. Instead of reading various endpoints and secret keys from settings or hardcoded values, services
with the proper authentication backend can simply read (and cache) the information from this endpoint.

ECOM-3629

An important step towards being able to use Studio's program editor out of the box. Part of ECOM-4638.

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

Moves ENABLE_INSTRUCTOR_EMAIL and REQUIRE_COURSE_EMAIL_AUTH from settings files
to admin-accessible configuration models. This allows for the bulk email settings
to be modified without a new AMI deploy. See TNL-4504.

Also updates tests:
    -python tests mock out the new configurations in place of the old settings
    -lettuce test has been moved to bokchoy
        (note that there was some loss of coverage here - the lettuce tests had
        been doing some voodoo to allow for cross-process inspection of emails
        messages being "sent" by the server, from the client! In discussion with
        testeng, this seems outside the realm of a visual acceptance test. So,
        the bokchoy test simply confirm the successful queueing of the message,
        and leaves the validation of sending messages to the relevant unit tests.)
    -bok choy fixture has been added, to replace the settings in acceptance.py
    -lettuce and bok choy databases have been updated to reflect the backend changes

The new default is to have bulk_email disabled, we'll need to call this out in the
next OpenEdx release to ensure administrators enable this feature if needed.

This reverts commit 266f593d.

This reverts commit a796b563.

Conflicts:
	lms/envs/common.py
	openedx/core/djangoapps/theming/models.py
	pavelib/assets.py
	pavelib/paver_tests/test_assets.py

ziafazal: improvements need for multi-tenancy
ziafazal: fixed broken tests
ziafazal: no need to add setting in test.py
ziafazal: added hostname validation
ziafazal: changes after feedback from mattdrayer
ziafazal: fixed branding and microsite broken tests
ziafazal: make STATICFILES_DIRS to list
ziafazal: added theme directory to mako lookup for tests
ziafazal: added more protection in test_util
saleem-latif: Enable SCSS Overrides for Comprehensive Theming
saleem-latif: Incoporate feedback changes, Correct test failures, add tests and enable theming for django templates
saleem-latif: Correct errors in python tests
mattdrayer: Fix invalid release reference
mattdrayer: Update django-wiki reference to latest release
saleem-latif: Update Theme storages to work with Caching, Pipeline and collectstatic
saleem-latif: Incorporate feedback changes
mattdrayer: Pylint violation fix
mattdrayer: Fix broken pavelib test

This reverts commit 954dae58.

ziafazal: improvements need for multi-tenancy
ziafazal: fixed broken tests
ziafazal: no need to add setting in test.py
ziafazal: added hostname validation
ziafazal: changes after feedback from mattdrayer
ziafazal: fixed branding and microsite broken tests
ziafazal: make STATICFILES_DIRS to list
ziafazal: added theme directory to mako lookup for tests
ziafazal: added more protection in test_util
saleem-latif: Enable SCSS Overrides for Comprehensive Theming
saleem-latif: Incoporate feedback changes, Correct test failures, add tests and enable theming for django templates
saleem-latif: Correct errors in python tests
mattdrayer: Fix invalid release reference
mattdrayer: Update django-wiki reference to latest release

Collectstatic failed in production when comprehensive theme contained custom css files.
This patch fixes that problem by removing ComprehensiveThemeFinder from STATICFILES_FINDERS
and ComprehensiveThemingAware mixin from STATICFILES_STORAGE.

Comprehensive theme static dirs are added to the top of the STATICFILES_DIRS entry,
which means that the default django FilesystemFinder will find theme static files,
and since the theme folder is at the top of STATICFILES_DIRS, theme files will take
precedence over default LMS/CMS static files.

This change means that theme static file URLs are no longer prefixed with themes/<theme-name>/,
but since we currently only support one comprehensive theme at a time, that shouldn't be a problem.
If/when we want to make the choice of a theme dynamic per-request (microsites?), we will have to
bring custom theme finders and storage mixins back, but for now, we don't need them.

ECOM-3419

This reverts commit 46df4545, reversing
changes made to 039e6cdf.

ECOM-3419

Please note that this is a squshed commit and the work of:
Symbolist, macdiesel, nedbat, doctoryes, muzaffaryousaf and muhammad-ammar

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

TNL-3137

TNL-3137

TNL-3137

TNL-3137

TNL-3137

TNL-3137

* asadiqbal08/SOL-1058: Add edx-organizations to certificate web view
  * Support organization logo asset management
  * Remove organization fields from Studio certificate configuration model

* SOL-981 pull request feedback fixes