[tveast] Add support for tveast.dk

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• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like this: [x])
• Use the Preview tab to see what your issue will actually look like

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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2018.03.14. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2018.03.14

Before submitting an issue make sure you have:

• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones
• Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

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youtube-dl -v https://www.tveast.dk/tv-ost-reportagen/tv-ost-reportagen-samleren-fra-norreballe
[debug] System config: []
[debug] User config: [u'-t', u'--restrict-filenames']
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'https://www.tveast.dk/tv-ost-reportagen/tv-ost-reportagen-samleren-fra-norreballe']
WARNING: --title is deprecated. Use -o "%(title)s-%(id)s.%(ext)s" instead.
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.03.14
[debug] Python version 2.7.13 (CPython) - Darwin-15.6.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 3.2.4, ffprobe 3.2.4
[debug] Proxy map: {}
[generic] tv-ost-reportagen-samleren-fra-norreballe: Requesting header
WARNING: Falling back on generic information extractor.
[generic] tv-ost-reportagen-samleren-fra-norreballe: Downloading webpage
[generic] tv-ost-reportagen-samleren-fra-norreballe: Extracting information
ERROR: Unsupported URL: https://www.tveast.dk/tv-ost-reportagen/tv-ost-reportagen-samleren-fra-norreballe
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/generic.py", line 2222, in _real_extract
    doc = compat_etree_fromstring(webpage.encode('utf-8'))
  File "/usr/local/bin/youtube-dl/youtube_dl/compat.py", line 2542, in compat_etree_fromstring
    doc = _XML(text, parser=etree.XMLParser(target=_TreeBuilder(element_factory=_element_factory)))
  File "/usr/local/bin/youtube-dl/youtube_dl/compat.py", line 2531, in _XML
    parser.feed(text)
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/xml/etree/ElementTree.py", line 1653, in feed
    self._raiseerror(v)
  File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/xml/etree/ElementTree.py", line 1517, in _raiseerror
    raise err
ParseError: not well-formed (invalid token): line 25, column 18
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 785, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 440, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/generic.py", line 3151, in _real_extract
    raise UnsupportedError(url)
UnsupportedError: Unsupported URL: https://www.tveast.dk/tv-ost-reportagen/tv-ost-reportagen-samleren-fra-norreballe

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If the purpose of this issue is a site support request please provide all kinds of example URLs support for which should be included (replace following example URLs by yours):

• Single video: https://www.tveast.dk/tv-ost-reportagen/tv-ost-reportagen-samleren-fra-norreballe

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Description of your issue, suggested solution and other information

Unsupported site.