Clip selected as best format [vidme]

[jbboehr]

vidme provides a 3 second clip of a video, which in certain cases is selected as the 'best' format:

$ python -m youtube_dl https://vid.me/TZAW -F -v
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'https://vid.me/TZAW', u'-F', u'-v']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2015.09.22
[debug] Git HEAD: f102819
[debug] Python version 2.7.6 - Linux-3.13.0-46-generic-x86_64-with-Ubuntu-14.04-trusty
[debug] exe versions: ffmpeg 2.5.4-1, ffprobe 2.5.4-1, rtmpdump 2.4
[debug] Proxy map: {}
[Vidme] TZAW: Downloading JSON metadata
[info] Available formats for TZAW:
format code  extension  resolution note
480p         mp4        236x426    
480p-clip    mp4        236x426    (best)

Perhaps we can weight that format lower or just remove it?