55011586 Use API for lost/stolen passport embassy list

Use API for lost/stolen passport embassy list

https://www.pivotaltracker.com/story/show/55011586

* Test page output to catch errors rendering the partial.
* Remove calculate :country_name and matching test as this is unused in the display.
* DRY'd the service finding code and placed in the WorldwideOrganisation class.

Also vim fixed up some trailing whitespace for me (separate commit)