Make UnassignedPersonPresenter return false for present?

Also check for primary_role.current_person in the view as the role is
present but not filled.

https://www.pivotaltracker.com/story/show/45903741
replace current_person.present? with has_appointment?

Also change the view logic
creating fco foreign secs page and adding content

https://www.pivotaltracker.com/story/show/46252633
updating naming
moving history files to new folder and adding pages and content
removing history page from home folder
tidying content adding responsiveness
coding entities for consistency
tweaks after browser testing
renaming files to index and show
More railsesque routes
Ensure history pages have nav selected
Merge pull request #410 from alphagov/FCO-history-people

Fco history people

https://www.pivotaltracker.com/story/show/46252633
Merge pull request #408 from alphagov/worldwide-org-people-list

Do not show the people header on ww orgs when there are no people in roles

https://www.pivotaltracker.com/story/show/45903741