Remove deprecated IE6/7 polyfill

Send 'Vary: Origin' so XHR/CORS requests can work properly.

Add latin1 decoding to HTTP Headers

Merge pull request #11580 from edx/waheed/ecom-2947-support-entire-password-reset-flow-in-logistration

Fixed the other half of forgot password flow accourding to logistration.

ECOM-2947

Bump the version of the Drag&Drop XBlock to 2.0.3.

Include CCX courses in dump_course_ids.

Redirect to otto checkout for prof ed courses if enabled

Lessening specificity for headings

The escaping is unnecessary and confusing to the user.

Removing importants from heading styles

Remove unused profile name.

Migrate correctly from scratch also

The profile name requires escaping when displayed. Proactively removing since it is not being used. Also discovered some dead code.

Delete hinter manager.

This polyfill was added in late 2012 [1].
The final reference appears to have been removed in mid-2013 [2].

Regardless, we certainly are no longer supporting IE6/7.

[1] bf9f9c1c
[2] 13886841

TNL-3429: implement display_name_with_default for studio text sanitation

TNL-4140 – Configure code jail for Studio

TNL-4195

Invalid display courseware through the LTI iframe in IE 10+

Convert tests for adding advanced problem components from lettuce to bok-choy

Fixed edx-proctoring requirement

Use markup HTML helper with Text

Unfortunately, instrospection.get_table_description runs
select * from course_overview_courseoverview, which of course
does not exist while django is calculating initial migrations, causing
this to fail.  Additionally, sqlite does not support information_schema,
but does not do a select * from the table.

Lift the main part of mysql's get_table_description up to the migration itself
and just inspect it directly.  Continue to call the API for sqlite.

Incremented edx-proctoring version for 0.12.12 release

Fix content library export with empty problems.

Going head with the bump to Django version 1.8.10 - hopefully, 1.8.11 will show up soon and we'll be able to remove this monkeypatch.