handle error when opening invalid cover file
refactor db access when updating podcasts
remove unused param to DB query
disable caching in podcastlist_for_user_slug()
refactor podcastlist updates
fix missing podcasts in podcastlists
improve / refactor feed-downloader
use protocol-relative links in facebook template tags
typo
also return outdated podcasts in PodcastUpdater.update()
use django-celery instead of DIY-solution
bind to socket, don't use gevent
add requirement django-celery
move and update wsgi file
Merge branch 'master' into design