Neither edit nor delete activated on pressing the space key.

The map contains a human readable description of the answer if
necessary. It is useful for problem like multiple choice, when the
response of the student is replaced by a moniker. For example "choice_0"
instead of the full text.

Fixes: AN-587

Fix case where both old and new transcripts are uploaded, but transcript language isn't one of the new transcripts.

[BLD-889]

This is the changes for STUD-1244, which introduces the ability for Studio to display
arbitrarily nested xblocks. In this change, a new container page is introduced which can
display nested xblocks. In particular, the xblock type of 'vertical' is special cased
to be shown inline as a collapsible section. The unit page is mostly unchanged, except
that container xblock's are shown as a link to their container page, rather than being
shown inline.

ORA-330

Finalize tests for embargo middleware app

Allows specification of countries to embargo, what course(s) should
apply embargo restrictions, and whitelist/blacklist capability for
specific individual IP addresses.

Adds configurable middleware in common/djangoapps/embargo that
allows specific courses to comply with US Export regulations by
embargoing students from specific countries, whilst simultaneously
allowing other courses to be freely open to all.

Add Studio client-side runtime notifications for saving/cancelling XBlock edits.

Students no longer see a tooltip nor any button affordance (i.e. cursor
and color change on hover/focus) on the pinning feature. For moderators,
the tooltip is now correct when a thread is pinned, the button is
accessible for keyboard-only users and screen readers, and an error
dialog now appears if an error occurs in attempting to pin/unpin.

JIRA: FOR-192

LMS-1724

JIRA: FOR-472

LMS-1479

STUD-1140

When there is a start-time:

Initially, the video starts playing from the start-time.
Whenever the player resets for any reason (such as reaching
the end of the video), it will reset to start-time instead of 00:00:00.
It should not be the case that any time the user presses play, it
start playing from start-time.

BLD-659.

update course info module to save content in new 'items' field + update import/export to handle content field other than 'data' or 'metadata'
STUD-154