youtube-dl 2020.01.24

Extractors

• [youtube] Fix sigfunc name extraction (#23819)
• [stretchinternet] Fix extraction (#4319)
• [voicerepublic] Fix extraction
• [azmedien] Fix extraction (#23783)
• [businessinsider] Fix jwplatform id extraction (#22929, #22954)

• [24video] Add support for 24video.vip (#23753)

• [ivi:compilation] Fix entries extraction (#23770)
• [ard] Improve extraction (#23761)
  • Simplify extraction
  • Extract age limit and series
  • Bypass geo-restriction

• [nbc] Add support for nbc multi network URLs (#23049)

• [americastestkitchen] Fix extraction
• [zype] Improve extraction
  • Extract subtitles (#21258)
  • Support URLs with alternative keys/tokens (#21258)
  • Extract more metadata
• [orf:tvthek] Improve geo restricted videos detection (#23741)
• [soundcloud] Restore previews extraction (#23739)