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).

EDUCATOR-171

EDUCATOR-1400

LEARNER-1854

LEARNER-1696

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.

Adding a reviews page to the course and updating the reviews module on the course about page. Removed the existing coursetalk implementation and put it in a fragment, removed the tests as well. Added configuration settings to specify the reviews template as well as the reviews provider. This is all protected by a waffle flag.

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.

LEARNER-877

LEARNER-606

raise IndexError after catching it

LEARNER-76

Add a new waffle switch that allows us to assume zero grades for
learners who have no entry previously recorded, and another to
disable persisting grades for unengaged learners.

TNL-6691

LEARNER-394

- Add new utilities to monitoring_utils djangoapp.
- Use new utilities for all new course tabs.

LEARNER-75

LEARNER-39

LEARNER-39

TNL-6227

Ensure Enterprise-integrated courses require user consent before granting access to Wiki and Discussion forum.

* User-facing links are gated; internal services are not.
* Adds view decorator data_sharing_consent_required
* Renames `get_course_specific_consent_url` to `get_enterprise_consent_url`,
  which now checks `consent_needed_for_course` before returning a consent URL.

Add consent check to course access prerequisites; add utility functions to provide interface to course-specific consent in Enterprise app

When crawlers like edX-downloader make requests on courseware, they are
often concurrently loading many units in the same sequence. This causes
contention for the rows in courseware_studentmodule that store the
student's state for various XBlocks/XModules, most notably for the
sequence, chapter, and course -- all of which record and update user
position information when loaded.

It would be nice if we could actually remove these writes altogether
and come up with a cleaner way of keeping track of the user's position.
In general, GETs should be side-effect free. However, any such change
would break backwards compatibility, and would require close
coordination with research teams to make sure they weren't negatively
affected.

This commit identifies crawlers by user agent (CrawlersConfig model),
and blocks student state writes if a crawler is detected. FieldDataCache
writes simply become no-ops. It doesn't actually alter the rendering
of the courseware in any way -- the main impact is that the blocks
won't record your most recent position, which is meaningless for
crawlers anyway.

This can also be used as a building block for other policy we want to
define around crawlers. We just have to be mindful that this only works
with "nice" crawlers who are honest in their user agents, and that
significantly more sophisticated (and costly) measures would be
necessary to prevent crawlers that try to be even trivially sneaky.

[PERF-403]

[courseware] generate sequence-specific titles server-side (AC-695)

[courseware] generate sequence-specific titles server-side (AC-695)

case for empty subsections [AC-695]

move title logic into courseware context method [AC-695]

pep8

coffeescript -> js

js mistake

jslint

refactor sequence title generation slightly

missed a line

line too long

python is not javascript

ugh js

ugh js part 2

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