Related content is now dropped straight into the HTML.

We only make an AJAX call if we want "custom" HMTL.

Also deleted a bunch of ignored tests (leaving ignored tests lying around is extremely midpack)

Lots of files as this also includes a refresh of all database files
Fixed typo
Deleting related integration tests. These are now inline and no longer Ajax
Merge branch 'master' of github.com:guardian/frontend into related
Merge pull request #5600 from guardian/related

Related content is now dropped straight into the HTML.