fixes the issue with advanced search. see #110
Merge pull request #112 from unikent/refactor/advanced-search-fix-subject-category-fix

fixes the issue with advanced search. see #110
fixes #102 -- remove subject leaflet heading when there is no leaflet link
fixes #97 Hyphenate subject-specific skills
fixes #59
fixes #28 where International Foundation Programme outputs even when its empty
Updated 404 page text. Fixes #115
Merge branch 'develop' into feature/compress-assets