Pulled new changes from master

.gitignore

administration/forms.py

administration/migrations/0007_auto_20200929_1218.py

administration/models.py

...nistration/templates/administration/includes/sidebar.html

administration/templates/edit_admin.html

administration/templates/kelola_admin.html

administration/templates/kelola_materi.html

administration/tests.py

administration/urls.py

administration/views.py

app/forms.py

app/migrations/0014_rating.py

app/migrations/0015_downloadstatistics_downloader.py

app/migrations/0015_reqmaterial.py

app/migrations/0016_ratingcontributor.py

app/migrations/0017_auto_20201005_2145.py

app/migrations/0018_merge_20201009_0700.py

app/models.py

app/static/app/css/katalog_kontri.css