Merge branch 'release/0.17'

api/funkwhale_api/providers/audiofile/__init__.py

api/funkwhale_api/providers/audiofile/management/__init__.py

...e_api/providers/audiofile/management/commands/__init__.py

api/funkwhale_api/providers/audiofile/tasks.py

api/funkwhale_api/providers/urls.py

api/funkwhale_api/providers/youtube/__init__.py

api/funkwhale_api/providers/youtube/client.py

...ale_api/providers/youtube/dynamic_preferences_registry.py

api/funkwhale_api/providers/youtube/urls.py

api/funkwhale_api/providers/youtube/views.py

api/funkwhale_api/radios/admin.py

api/funkwhale_api/radios/radios.py

api/funkwhale_api/requests/admin.py

api/funkwhale_api/requests/api_urls.py

api/funkwhale_api/requests/factories.py

api/funkwhale_api/requests/filters.py

api/funkwhale_api/requests/serializers.py

api/funkwhale_api/requests/views.py

api/funkwhale_api/subsonic/serializers.py

api/funkwhale_api/subsonic/views.py