First pass at allowing filtering by synonyms
Add ability to search by popular synonyms for countries.

Long term we need a better solution that lets us manage synonyms
properly, but this is a first pass to at least enable searching for some
of the most popular.
Update presenter tests following country changes to FTA tests
Fix conflicts with master and update tests

Merge branch 'master' into synonym_searching

Update the travel index presenter tests.

Conflicts:
	test/unit/presenters/travel_advice_index_presenter_test.rb
Merge pull request #289 from alphagov/synonym_searching

Synonym searching on Foreign Travel Advice
Add travel advice accessibility fixes

Improve colour contrast & add alt attribute to
main image
Style the synonym matching
Show synonym match in brackets when we match on one
Add aria-live tag
Merge pull request #290 from alphagov/travel-advice-accessibility-fix

Add travel advice accessibility fixes
Merge pull request #291 from alphagov/synonym_fixes

Synonym fixes
The travel advice pages are no longer in beta
Remove full link from travel advice summary emails
Merge pull request #294 from alphagov/remove-link-atom-feed

Remove full link from travel advice summary emails
Merge branch 'master' into break-up-publication-method

Conflicts:
	app/controllers/travel_advice_controller.rb