d27

The only difference between ordinary and extraordinary is just that little "extra".

use weeks for duration on draft lcs; back button uses prev url; added AOS; fixed styling; added signup_count to API, merged upcoming and current LC tables on dashboard

Merge pull request from p2pu/edit_team add form to update team information with link in dashboard

Merge pull request from p2pu/dependabot/pip/django-2.2.13 Bump django from 2.2.10 to 2.2.13

Bump django from 2.2.10 to 2.2.13 Bumps [django](https://github.com/django/django) from 2.2.10 to 2.2.13. - [Release notes](https://github.com/django/django/releases) - [Commits](https://github.com/django/django/compare/2.2.10...2.2.13) Signed-off-by: dependabot[bot]

use studygroup name instead of course title, save old studygroups with course title as name

save custom ls name and course description, update help text, make image preview a circle