Publish state pension top

- Change v2 files to published files
Merge pull request #1140 from alphagov/publish-state-pension-topup

Publish state pension topup
Change vat payments deadline from draft to published
Merge pull request #1141 from alphagov/publish-vat-payments

Publish vat payment deadlines
Ensure flows method filters drafts
Use smartdown specific partial for previous answers
Add smartdown specific collapsed question and previous answers views
Merge pull request #1144 from alphagov/filter_flows

Ensure flows method filters drafts
Additional smartdown previous answers css
Additional class for previous answers title
Use padding instead of line height
Change names of new views and scope css specifically for spl
Parse flow only once
Merge pull request #1146 from alphagov/performance

Parse flow only once
Remove check for section title
Tentative performance change
Flow combination generator
Fix errors in flow
Fix errors and single parent birth flows
Remove all pending cases from birth flows