This fixes an error in _parse_html5_media_entries in case
an audio or video tag directly uses a src attribute insted
of <source> elements in it's body.
It's the same video player, the only difference is that the video player
is loaded differently, and certain metadata (title and description) is
not available under dr.dk/mu, so make it by default get that from some
of the html meta tags.
Skip the dr.dk/tv test
dr.dk/tv videos are only available for between 7 and 90 days due to
Danish law, and in certain cases may be readded. Skip this test as it is
no longer available.
Closes#10464
According to a screenshot in http://tieba.baidu.com/p/4691302183,
thvideo.tv is shut down "temporarily". I see no clues that it will be up
again, so I remove it here.