Admin feature topical event
Frontend for featuring topics

Dont let world locations feature topics
Add a new partial for the featured items
Fix tests and rename current_featured_editions to featured_editions
Fix org features test
Fix cucumber tests and add in new test for topical event
Featuring a topical event on an orgs cucumber steps
Fix cucumber test
Fix validation
Indent and simplification
Remove these as we no longer call image_tag in the presenter
implement feature_list.empty?
Fix unclosed html tag
As topical events can be destroyed we should clean up the associated features
Merge pull request #542 from alphagov/feature-topical-events

Feature topical events

https://www.pivotaltracker.com/story/show/47297159