youtube-dl 2020.05.08

Core

• [downloader/http] Request last data block of exact remaining size
• [downloader/http] Finish downloading once received data length matches
  expected
• [extractor/common] Use compat_cookiejar_Cookie for _set_cookie to always
  ensure cookie name and value are bytestrings on python 2 (#23256, #24776)

• [compat] Introduce compat_cookiejar_Cookie

• [utils] Improve cookie files support
  • Add support for UTF-8 in cookie files
  • Skip malformed cookie file entries instead of crashing (invalid entry
    length, invalid expires at)

Extractors

• [youtube] Improve signature cipher extraction (#25187, #25188)
• [iprima] Improve extraction (#25138)
• [uol] Fix extraction (#22007)

• [orf] Add support for more radio stations (#24938, #24968)

• [dailymotion] Fix typo

• [puhutv] Remove no longer available HTTP formats (#25124)