- Certificates management commands updates
- Moving reverse calls in tests into setUp from class definition
- Import shuffling
- Consolidating cryptograhpy version to 1.9

Add explicit 'lms.djangoapps' prefix to all commerce imports, as another
commerce Django app exists at openedx.core.djangoapps.commerce

Anonymous users may now view units in the courseware. This access is limited to units that are not considered problems/graded (e.g. homework, exams).

If country name has special character str() raises unicode error.

LEARNER-2951

This reverts commit a1359535, reversing
changes made to 68d5fe89.

Moves ENABLE_ENTERPRISE_INTEGRATION to settings.FEATURES,
and changes the default value to False.

Separate the date and link logic out of VerifiedUpgradeDeadlineBlock, so that it can be called directly with prefetched data for check_and_get_upgrade_link_and_date

LEARNER-2073

EDUCATOR-171

EDUCATOR-1400

EDUCATOR-1204 | can always view certs when ready for self-paced courses; don't hide cert buttons; update messaging.

date has passed

The verified seat upgrade deadline for self-paced course runs is now
dependent on when the learner was first able to access the content--the
latest of enrollment date and course run start date.

LEARNER-2017

LEARNER-1854

This includes several general enhancement in addition
to the fixes for unified_course_view:
1. Add support for default when no waffle flag defined.
2. Add support for table_blacklist to assertNumQueries.
3. Rename flag to 'course_experience.course_outline_page'.
4. Change flag default to True when it is not defined.

[LEARNER-311] Enable a purchase button on the Program page - platform (WL)

PSA was monolothic, now split, with new features, like
a DB-backed partial pipeline. FB OAuth2 version also upped.

Partial pipelines don't get cleared except when necessary.
They persist for special cases like change of browser while
still mid-pipeline (i.e. email validation step).

Refactor, cleanup, and update of a lot of small things as well.

PLEASE NOTE the new `social_auth_partial` table.

This sock sits at the bottom of both the home and the course content pages. It allows the user to click a 'Learn More' button to open a panel that allows the user to navigate to the upgrade checkout page. The sock is only shown for users that have not yet upgraded in a course that has a verification upgrade date that has not yet passed. Python tests cover the various course mode and upgrade dates.