Remove international delegations from embassy finder
Add change_history to case study API presenter.

This creates some duplication since the top change note within the
change_history hash will be the same as the existing change_note
attribute. However, the latter is already being used by the email alerts
service; it would probably be good to change that app to use
change_history instead.
Merge pull request #1858 from alphagov/dont-send-draft-tags-out-of-whitehall

Don't send draft sector tags out to Rummager.
Managing Editor permissions for featured links

Allows Managing Editors to add and edit featured links on and
organisation homepage, when they are a member of that organisation or a
parent organisation.
Timeout of 10s for PDF thumbnail generation

www.agileplannerapp.com/boards/173808/cards/8160
fixes: https://govuk.zendesk.com/tickets/868919

we show the fallback pdf thumbnail image, instead
of a generated one if the thumbnail generation
takes longer than 10s.

better to process and upload without a thumbnail,
than to diasllow it.
Merge pull request #1860 from alphagov/permission-control-featured-links

Managing Editor permissions for managing featured links
Merge pull request #1843 from alphagov/timeout-for-pdf-thumbnail-generation

Timeout of 10s for PDF thumbnail generation
Merge pull request #1857 from alphagov/document_history

Add change_history to case study API presenter.
Merge pull request #1856 from alphagov/remove-international-delegations-from-embassy-finder

Remove international delegations from embassy finder
Fix fatality notice casualty field duplication

www.agileplannerapp.com/boards/173808/cards/8196

this issue seems to have its roots in this refactoring:
https://github.com/alphagov/whitehall/commit/3b8145

the remove button handler script adds an additional
hidden field '_destroy' to the form with value true,
which should be sent to the server, which was not
the case. instead this extra hidden field was being
sent to the server.