Management commands

Add some feeds:

python manage.py planet_add_feed https://www.djangoproject.com/rss/weblog/
python manage.py planet_add_feed https://djangopackages.org/feeds/packages/latest/rss/

Update a feed:

python manage.py planet_update_feed https://www.djangoproject.com/rss/weblog/

Update all the feeds:

python manage.py planet_update_all_feeds

Empty all feeds:

python manage.py planet_flush_all_feeds