move contributor below course name in results semester detail view - re #228
remove bottom margin which caused the scrolling - re #217
fix counting issue re #225
new try for semester view, re #228
add "..." to some buttons in fsr_semester_view

i always was scared of these buttons.
fix another breadcrumb, re #215
Update validate_unique to current Django internals

Issues was caused by Django upgrading, re #230
Add missing space and update the call in another place

re #230