List consular services by country.

Provides an alphabetical index of countries and their british consular
services including alternatives where no services are offered in that
country.
Fix consular service offices with the wrong office type
Add Organisation#has_child_organisation? method.
Call it an Embassy

The thing we are representing is a view across several models
incorporating a WorldLocation, WorldwideOrganisations, their
WorldwideOffices and the address information. For brevity and convention
I've called this an Embassy.
Tidy up layout and styles
Enforce permission for organisation editing.

Editing is only allowed for GDS Admins, or users in the organisation being
edited or its parent.
Add clear both to comments paragraph on org show page to fix broken
alignment

https://www.agileplannerapp.com/boards/105200/cards/5549
Fix feature tests after org editing change.
Adds Regulation Publication sub-type
Regenerate translation keys
Actions PR comments

* Moves Notice and Decision pub sub-types into "Less common" group
* Removes unneeded additional type verification from publications controller test
* Moves regulation locale key into a more appropriate alphabetical ordering
Merge pull request #1714 from alphagov/embassies_index

This is very low risk as it's not currently linked to anywhere on Whitehall or mainstream content.
Merge pull request #1715 from alphagov/limit_organisation_editing

Limit organisation editing permissions
Merge pull request #1721 from alphagov/pub-sub-type-regulations-for-maa

Add publication sub-type of `Regulation` for the Military Aviation Authority (MAA)
Remove references to text extraction from README.

We disabled this feature entirely in 3d6d9382c1b8dc4c645.
Merge pull request #1719 from alphagov/fix-orgshow-contacts-comments-paragraph

Add clear both to comments paragraph on org show page to fix alignment
Undoes unexpected changes to location keys

Unexpected changes made in c30b7301839a8c729eff8a6c7050cde36d92cdc5.
Remove the template handler when rendering govspeak partials

This removes the following warning:

`DEPRECATION WARNING: Passing a template handler in the template name
is deprecated.`
Merge pull request #1722 from alphagov/fix-translation-keys

Undoes unexpected changes to location keys
Public uploads: Set an HTTP expiry time of 4 hours

This was set to 15 minutes by using the value for
`Whitehall.default_cache_max_age`. For public uploads we want to cache
the result in our CDN for longer to remove some of the load we create
on our own application servers.