Bug in how video.xsl handles embed-code

[Bellfalasch]

If video.xsl "video-id" gets an URL or html emebed-code, this will be handled automatically. But if the embed code contains the ending / (which it always does) it will fail to get the correct video-id. With this input-string it thinks the video-id is "iframe" and not the correct one.

<iframe width="560" height="315" src="//www.youtube.com/embed/LqOfPkHGq9U" frameborder="0" allowfullscreen></iframe>