Prevents repeated memcached lookups on functions whose values should
remain static for the lifetime of a request.

EDUCATOR-1731

Entitlements

The feature is controlled by a switch on the provider.
Emails are sent if the email changes during the sync.
We skip syncing the username/email if there would be a conflict.

[LEARNER-3084]

Fixed some url reverse errors instead of marking since they were trivial

CommaSeparatedIntegerField is deprecated, this is the replacement. I
have confirmed there is no SQL generated for this migration since it is
already a CharField behind the scenes.

[LEARNER-3274]

Partial revert to disable calls to Enterprise API for each course in an
Enterprise Learner's dashboard to determine status of consent. Will re-enable once
a batch API is avaiable (WL-1315) to fix performance.

ENT-727

These changes should not change the actual queries at all, and those
will throw errors in Django 1.11.

Seems like transfer_students.py was missed in the last attempt to
cleanup commands in this app.

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

The Entitlement API will allow for GET, POST, DELETE(Revoke), and
variations of these methods of managing and retrieving data about
Learner Entitlements.
[LEARNER-2661]

The setting controls the number of courses displayed on the homepage.

- Remove usage of django.urls.patterns
- Change urls tuples to lists
- Make all string view names callables