Log Message:
youtube-dl: Update to 20190928

Changes:
2019.09.28
----------
Core
* [YoutubeDL] Honour all --get-* options with --flat-playlist (#22493)

Extractors
* [vk] Fix extraction (#22522)
* [heise] Fix kaltura embeds extraction (#22514)
* [ted] Check for resources validity and extract subtitled downloads (#22513)
+ [youtube] Add support for
  owxfohz4kjyv25fvlqilyxast7inivgiktls3th44jhk3ej3i7ya.b32.i2p (#22292)
+ [nhk] Add support for clips
* [nhk] Fix video extraction (#22249, #22353)
* [byutv] Fix extraction (#22070)
+ [openload] Add support for oload.online (#22304)
+ [youtube] Add support for invidious.drycat.fr (#22451)
* [jwplatfom] Do not match video URLs (#20596, #22148)
* [youtube:playlist] Unescape playlist uploader (#22483)
+ [bilibili] Add support audio albums and songs (#21094)
+ [instagram] Add support for tv URLs
+ [mixcloud] Allow uppercase letters in format URLs (#19280)
* [brightcove] Delegate all supported legacy URLs to new extractor (#11523,
  #12842, #13912, #15669, #16303)
* [hotstar] Use native HLS downloader by default
+ [hotstar] Extract more formats (#22323)
* [9now] Fix extraction (#22361)
* [zdf] Bypass geo restriction
+ [tv4] Extract series metadata
* [tv4] Fix extraction (#22443)