Extractor got deleted in remitamine/youtube-dl@8af2804
- revision3.com - testtube.com - animalist.com
- investigationdiscovery.com - discoverylife.com - animalplanet.com - ahctv.com - destinationamerica.com - sciencechannel.com - tlc.com - velocity.com
- extract data from json instead of xml - fix http format urls - extract more metadata - update tests - make m3u8 and f4m format extraction non fatal - use m3u8_native implementation