Changes to news and jobs index. Added Author field to review page.
removed image file added by mistake'
Changed StudentPage.degree_year to a string
Various changes to research importer
Added student profiles importer
Changed ResearchItem.ref to a BooleanField
Revert "Changed ResearchItem.ref to a BooleanField"

This reverts commit 82b6c9019c451ba28f76e13a92249cd681738da8.
Changed ResearchItem.ref to a BooleanField
Research item page no longer crashes when the research items programme field is not set
Various changes to research importer
Merge branch 'develop' into pagestatus