youtube-dl 2020.11.26

Core

• [downloader/fragment] Set final file's mtime according to last fragment's
  Last-Modified header (#11718, #18384, #27138)

Extractors

• [spreaker] Add support for spreaker.com (#13480, #13877)

• [vlive] Improve extraction for geo-restricted videos

• [vlive] Add support for post URLs (#27122, #27123)

• [viki] Fix video API request (#27184)
• [bbc] Fix BBC Three clip extraction
• [bbc] Fix BBC News videos extraction

• [medaltv] Add support for medal.tv (#27149)

• [youtube] Imporve music metadata and license extraction (#26013)
• [nrk] Fix extraction
• [cda] Fix extraction (#17803, #24458, #24518, #26381)