[MDR] Support playlists

[a-l-e-k]

• I've verified and I assure that I'm running youtube-dl 2017.02.17

• At least skimmed through README and most notably FAQ and BUGS sections

• Searched the bugtracker for similar issues including closed ones

• Bug report (encountered problems with youtube-dl)

• Single audio: http://www.mdr.de/kultur/videos-und-audios/audio-radio/operation-mindfuck-robert-wilson100.html

• Playlist: http://www.mdr.de/kultur/videos-und-audios/index.html

description
After recent changes on their site the download from MDR Radio is no longer working.

log

youtube-dl.exe -v http://www.mdr.de/kultur/videos-und-audios/audio-radio/operation-mindfuck-robert-wilson100.html
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'http://www.mdr.de/kultur/videos-und-audios/audio-radio/operation-mindfuck-robert-wilson100.html']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2017.02.17
[debug] Python version 3.4.4 - Windows-XP-5.1.2600-SP3
[debug] exe versions: ffmpeg N-67100-g6dc99fd, ffprobe N-67100-g6dc99fd, rtmpdump 2.4
[debug] Proxy map: {}
[generic] operation-mindfuck-robert-wilson100: Requesting header
WARNING: Falling back on generic information extractor.
[generic] operation-mindfuck-robert-wilson100: Downloading webpage
[generic] operation-mindfuck-robert-wilson100: Extracting information
ERROR: Unsupported URL: http://www.mdr.de/kultur/videos-und-audios/audio-radio/operation-mindfuck-robert-wilson100.html
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpqajgst4a\build\youtube_dl\YoutubeDL.py", line 696, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpqajgst4a\build\youtube_dl\extractor\common.py", line 369, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\rg3\tmpqajgst4a\build\youtube_dl\extractor\generic.py", line 2579, in _real_extractyoutube_dl.utils.UnsupportedError: Unsupported URL: http://www.mdr.de/kultur/videos-und-audios/audio-radio/operation-mindfuck-robert-wilson100.html
<end of log>

[yan12125]

http://www.mdr.de/kultur/videos-und-audios/audio-radio/operation-mindfuck-robert-wilson100.html will be fixed in the next version. Playlists are not supported yet, though.