youtube-dl 2020.11.21.1

Core

• [downloader/http] Fix crash during urlopen caused by missing reason
  of URLError
• [YoutubeDL] Fix --ignore-errors for playlists with generator-based entries
  of url_transparent (#27064)

Extractors

• [svtplay] Add support for svt.se/barnkanalen (#24817)
• [svt] Extract timestamp (#27130)

• [svtplay] Improve thumbnail extraction (#27130)
• [youtube] Fix error reason extraction (#27081)
• [youtube] Fix like and dislike count extraction (#25977)

• [youtube:tab] Add support for current video and fix lives extraction (#27126)

• [infoq] Fix format extraction (#25984)
• [francetv] Update to fix thumbnail URL issue (#27120)
• [youtube] Improve yt initial data extraction (#27093)

• [discoverynetworks] Add support new TLC/DMAX URLs (#27100)

• [rai] Fix protocol relative relinker URLs (#22766)
• [rai] Fix unavailable video format detection
• [rai] Improve extraction
• [rai] Fix extraction (#27077)
• [viki] Improve format extraction
• [viki] Fix stream extraction from MPD (#27092)
• [googledrive] Fix format extraction (#26979)

• [amara] Add support for amara.org (#20618)

• [vimeo:album] Fix extraction (#27079)
• [mtv] Fix mgid extraction (#26841)