* Don't hide podcasts if they have reachable episodes
Recheck episodes' reachability after the podcast status is set to
unreachable
* Update db/schema.rb
* Fix GetEpisodesJob specs
* Fix stories spec
* Episodes are reachable even if the podcast is unreachable
* Improve the Podcast.reachable query
* Fix podcasts root page spec
* Add index concurrently
* Podcasts reachable status #2952
* Specs for podcasts statuses
* Moved podcast episode create to a separate ActiveJob
* Use RssItemData wrapper in GetEpisode for consistency
* Reorganize services/podcasts