The sorting code now exits with the default value if a course has no course runs.

ECOM-5696

ECOM-5688.

Also add a filter to the list view of CourseRun admin so that users can determine which course runs are hidden. ECOM-5687.

These empty parameters cause errors, resulting in failed responses.

ECOM-5685

Docker testing improvements

- Sharing values between local nad Docker test settings
- Added nose-exclude to resolve issue with nose attempting to run devstack_test

These values better reflect what we use in production.

ECOM-5673

ECOM-5668.

Pre-fetching greatly reduces the number of queries. Locally, this has resulted in a 78% decrease in queries.

ECOM-5559

ECOM-5660 Add logo image url override for organizations

ECOM-5635 allow filter of unpublished course_runs

django-simple-history's HistoricalRecords conflict with django-extensions' AutoSlugField. Briefly: AutoSlugField tries to automatically generate a unique slug any time a new model instance is saved. This includes the addition of rows to historical tables. AutoSlugField attempts to generate a unique slug 100 times by appending '-i' where i is between 2 and 99, inclusive, then raises an exception, preventing a historical row from being created.

This happened very quickly for models whose slug field source(s) slugify to the empty string, but would have eventually happened for all models using HistoricalRecords. This behavior renders the historical tables (which we weren't using in the first place) useless until we can exclude specific fields from historical tracking: https://github.com/treyhunner/django-simple-history/issues/165. Note that the migration included here will drop the historical tables currently in place. This is fine - the data is not useful - and should not incur downtime.

An added benefit of fixing this issue by removing HistoricalRecords from course metadata models: a refresh with production data takes 11 minutes on my local machine.

ECOM-5579.

ECOM-5659

This removes the burden of conversion from our API clients.

ECOM-5623

ECOM-5577

- Enabling Django Debug Toolbar by default
- Removed local/syslog logger for testing since there is no syslog on the containers

ECOM-5534

ECOM-5534

Change edx-django-release-util version.

Make marketing slug required for program activation

A program's marketing_slug field must be populated before it can be marked as 'Active'. ECOM-5568.

Marketable programs must be active

Programs have a status field that must be respected when filtering marketable programs. The LMS consumes the set of marketable MicroMasters. We don't want to leak unpublished programs.

Query Performance Improvements

ECOM-5559 and ECOM-5440

ECOM-5559 and ECOM-5440

ECOM-5559 and ECOM-5440

ECOM-5559 and ECOM-5440

OEP-5 Compliance 

- Corrected location of devstack data
- Corrected location of Elasticsearch data volumes
- Added .dockerignore

Drupal data loader fixes