Enterprise customers can require user to agree to Data Sharing Consent
form before they can access a course. We now add it conditionally to
Course Dashboard when it's required so it's apparent to user and they
have a way to revist the consent form if they've previously declined or
the course has not yet started.

WL-1281

LEARNER-2430

This reverts commit e2ee48c3.

This reverts commit 441bccf4.

Fix course unenroll dialog's incorrect message rendering. LEARNER-2033

LEARNER-1510

LEARNER-2105

Learners now see (on the dashboard) a list of reasons why their verifications were denied.

LEARNER-1486

Learners now see a message informing them that their status is denied rather than expired.

LEARNER-1486

If verification status is pending, the top border is now colored blue, in a manner similar to the success and failure states.

LEARNER-1486

Added course level lang attribute for LMS

added lang attribute to Studio

fixed error when trying to get language attribute on course that does not exist

simplified code

added lang attribure to more places in LMS, added migration for language attribute in course_overview

fixing contraints in the database for language attribute

added lang attribute to several more places in LMS and Studio

added lang attribute to discussion and custom pages; cleaned up code

fixed issue that was causing test failures

moved lang attribute higher in tree in two places

LEARNER-609

Updates Mako and Underscore templates as well as Backbone models and views so they work with catalog programs. Removes all remaining response munging from the back end.

ECOM-4422

This reverts commit d59ab18b, reversing
changes made to 0ebab35e.

Show verification expiration message on learner dashboard and allow them to reverify if expiration is X days away.
ECOM-2979

Programs with Unicode in their name would prevent the dashboard from loading. ECOM-5293.

Removes most remaining hardcoded references to XSeries from the LMS. Part of ECOM-4638.