ECOM-3688

ECOM-2831

The previous logic was a convoluted way of doing the same thing, and
has already led to one bug. Instead of hoping that the bugs are ironed
out now and that future devs maintain this logic properly, let's just
set a real cutoff date.

Add app_label definitions in Meta classes for models.
Move import of course_mode model into methods to prevent importing
the models at startup time.

ECOM-3354

COR-2403

This hardcoded the db_alias fetched from schema_editor and forces django
to try and migrate any second database you use, rather than routing to
the default database.  In testing a build from scratch, these do not
appear needed.

Using using() prevents us from using multiple databases behind edxapp.

Additionally - add back a removed backwards migration from certificates
0003.  I have no idea why this was dropped in the 1.8 upgrade.

changes after feedback from matte

ECOM-3523

Two new certificate statuses are introduced, 'audit_passing' and
'audit_notpassing'. These signal that the GeneratedCertificate is not
to be displayed as a cert to the user, and that they either passed or
did not. This allows us to retain existing grading logic, as well as
maintaining correctness in analytics and reporting.

Ineligible certificates are hidden by using the
`eligible_certificates` manager on GeneratedCertificate. Some places
in the coe (largely reporting, analytics, and management commands) use
the default `objects` manager, since they need access to all
certificates.

ECOM-3040
ECOM-3515

This reverts commit 60860e3a.

This reverts commit 54c349b4.

This reverts commit ee13ffd1.

ECOM-3401

An `eligible_for_certificate` field is added to the
GeneratedCertificate model. This way we can retain existing grading
logic, as well as maintaining correctness in analytics and reporting.

Ineligible certificates are hidden by using the
`eligible_certificates` manager on GeneratedCertificate. Some places
in the coe (largely reporting, analytics, and management commands) use
the default `objects` manager, since they need access to all
certificates.

This commit also updates the DB cache for acceptance tests.

Edited text strings in the default template for web certificates to remove wording specific to edx.org. Addresses DOC-2543.

removed print statement

removed unnecessary status code assertion

Revert "Edited the text strings in the default template for web certificates to remove wording specific to edx.org"

Edited the text strings in the default template for web certificates. Removed wording that applied specifically to edx.org. Reworded strings so that they will read correctly when the value of platform_name or cert_type requires the a or an article. Addresses DOC-254.

If platform name or "All rights reserved" translation contain non-ascii characters,
certificate HTML view would break with "'ascii' codec can't encode character...".

fixed broken tests and added some optimisations

fixed migration history

MA-1767

Update Zendesk ticket to correctly add group.

Add logic to hide new audit certs

Replacing user dropdown field with user search textbox. On stage due to large user's list page is not loading.
ECOM-2980