Add files via upload
Add files via upload

operates various maintenance tasks on urls and cache.db for newsboat:
 - convert http to https in urls file when https feed is available
 - convert feeds urls to their forwarded urls for 3xx http codes
 - feeds urls not returning a valid http code 200 are tagged "_dead"
 cache.db is also updated to refer to the new url feeds so all read/unread articles and flags are preserved
der-lyse/newsboat,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,newsboat/newsboat,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,newsboat/newsboat,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,der-lyse/newsboat,der-lyse/newsboat,der-lyse/newsboat,der-lyse/newsboat