download raw videos from LiveLeak (without branding)

[jomo]

Removing .h264_base.mp4 from the URL gives us the raw video, which is essentially the same video without the LiveLeak logo at the top:

Actually the video quality seems to be slightly better now as well.

Some of the raw videos are flv instead of mp4, so they won't always be mp4 (as it was before). I hope that is okay.

All tests are passing after I changed the expected result to flv for one of the videos.

I have never worked with youtube-dl before, please forgive me if this is the wrong place for this kind of modification.

[phihag]

youtube-dl supports multiple video formats, so we can make use of that functionality. That allows users to still pick the mp4 file format.

[phihag]

Thanks for pointing this out, by the way! We appreciate your contribution!