Add categories to the info pages
Add categories to the admin
Add COUNTRY_APP to settings exposed to the templates
Display constituency offices for ZA persons. Closes #775
Extract the place kind from the place to create the heading. Closes #774
Merge branch 'issues/783-blog-categories'
Merge branch 'issues/775-display-constituency-office-relationship'
Merge branch 'issues/774-display-correct-constituency-kind'
Merge branch 'master' into issues/734-people-list-pages