add bottom border to our topics section on orgs page
Put into a branch while Stephen is away, so I can run this past him when he returns

https://www.pivotaltracker.com/story/show/48390303
reduce padding by 10px
WW API page and id URLs should use request hostname

This fixes that, so that if you start requesting e.g. whitehall-admin.preview.alphagov.co.uk, the next_page link is also on whitehall-admin.preview.alphagov.co.uk etc.
Merge pull request #519 from alphagov/fix_ww_api_page_links

Worldwide API page and Id URLs should use request hostname

https://www.pivotaltracker.com/story/show/48396379
Merge pull request #517 from alphagov/topics-section-border

Topics section border