Merge release back to master

CMS memory leak fix

Remove these unused config settings

Release candidate

This has been causing a huge memory leak, wrapping the call in this
context manager properly cleans up the 'records' entries.

EDUCATOR-274

[DE-209] Switch to the PyPI-based version of eventtracking.

Resolved multi-tenant program issues

Merge release back to master

LEARNER-1726 CSS/JS fixes to Track Selection V3 Test

This reverts commit 2d6b477e, reversing
changes made to 7799c4ad.

A site must be passed so the system knows which URL to use to contact
the Discovery Service.

LEARNER-1726

Updating jasmine tests for course tools.

Adding in-course messages on the home page.

Move prereq checking into course load checks.

Add basic Bootstrap theme to Studio

LEARNER-1894

This commit adds in course messaging for three use cases. First,
when the user is not signed in, the user is shown a message that
provides a link to sign in or register. If the user is signed in
but not enrolled, they are given a link to do so. If the user is
enrolled but the course has not yet started, they are shown a
message explaining when the course starts and shown a link (not
yet enabled) to add a reminder to their calendar.

The implementation defines a base message class and extends it
for the course home messages as well as the previously implemented
page level messages.

Don't add groups in experiment configurations twice.

Rc 2017 07 24

LEARNER-1652

Converting test to testing all three Logging events and removing page from the logging object that is submitted.

They both contain the same change but as different commits for bumping
the requirements for edx-ora and edx-submissions.

They both contain the same change but as different commits for bumping
the requirements for edx-ora and edx-submissions.

Shift to edx fork of drf-oauth module.

EDUCATOR-947

LEARNER-1982

Ignore Visual Studio Code directory.

[ENT-491] Remove SSO consent features; verify fully-populated consent URL generation