don't link to API endpoint from support page

Loosen login lockout text check

Update to django-storage-swift v1.2.18

bump edx-sga to 0.8.0

Auto-open course outline to last viewed block

This reverts commit 4946b6b2.

Add Support endpoint for Course Entitlements

Add intructor bio program marketing

Assign new sailthru var upon signup.

Integrate with the updated VAL api utils.

On our fork at Stanford, we override the template for the login lockout
to provide additional information. This means that the second sentence
here, `Try again later.` does not immediately follow the first in our
rendering. As a result, this test fails for us.

Instead, by checking for the most important part of the message
(the first sentence), we're able to ensure that:
- the user is still locked out
- the lockout message is shown on the template
- the test does not fail unnecessarily

In SailThru, randomly set a var value of 0-9 on each user upon signup.

LEARNER-4177

Footer Bootstrap new design fixes WIP

Fixes for new design as per instruction in this ticket.

LEARNER-3131

* Implement a ViewedEvent handling system which calls handlers when a
  block has been viewed for 5 seconds (configurable).
* Hook up Verticals to register their children blocks with this event,
  and submit completions once seen.

OSPR-2093
OC-3358

Upgrade SFE, use built files, and allow development via SFE docker container