UnitTests

Tests for class-based views:
    GrantList and GrantDetail
    ThesesList and ThesisDetail
    Lists of students and memebers of staff
    override_settings decorator to Tests to force en language.
    Unittests for OPPO specific pages
Default template names

Renamed templates to default names.
Removed template specification from views and urls.
Removed unused template fuuk/templates/thesis_defend_page.html
Ordered on Queryset and default for BooleanField
Cleaned queryset in RetiredList