[played] Add new extractor
[golem] Add new extractor
[vbox7] Don't set the extension to 'flv' (fixes #3836)
[anysex] Fix extraction
[extremetube] Fix extraction
[ynet] Add new extractor
[sport5] Add new extractor
[heise] Add new extractor
[golem] Don't omit positional argument specifiers

Required by Python 2.6.
Merge branch 'sport5' of https://github.com/lenaten/youtube-dl into lenaten-sport5
[YoutubeDL] Expect all kind of strings in urlopen

Now it doesn't fail if req is python2's str
[heise] Don't check string type

Before Python 3 could be unicode, so don't check at all.
[sport5] Capture error message and improve
Merge branch 'lenaten-sport5'
[sport5] Keep alphanumeric order
[YoutubeDL] Fix string check for python3
Merge branch 'ynet' of https://github.com/lenaten/youtube-dl into lenaten-ynet
[ynet] Remove unused stuff, simplify and improve
Merge branch 'lenaten-ynet'
[ynet] Improve _VALID_URL