When pressing a collection, get content API items in batches
Set config property for item batch size
Merge branch 'master' into make-fewer-requests-in-facia-press
Remove test case as it could be potentially flaky
Merge branch 'master' into make-fewer-requests-in-facia-press
Remove completeAfter as it was only used in the test
Merge branch 'master' into make-fewer-requests-in-facia-press
Minor refactor
Merge pull request #5894 from guardian/make-fewer-requests-in-facia-press

Make configurable number of concurrent requests to Content API in Facia Press