* Fix georestriction detection * Detect live streams + Extract relinker metadata * Improve ContentItem detection + Extract series metadata * Fix tests
Fix "'str' object does not support item assignment"
This simplifies code for callers of `_find_jwplayer_data()` which no longer have to run `_parse_json()` on the return value. It also makes sure that `_find_jwplayer_data()` returns either a `dict` or `None` and nothing else.
As per @remitamine: the ISM downloader does not support videos served from wowza servers(it will produce broken files)
Add series, season number, episode number and episode.