Fix Vimeo video

[mgautierfr]

This PR is kind of a fix to #165.

The root issue seems that vimeo is using js module (instead of plain "classic" script) and rewriter is not detecting thing correctly.

If it is somehow easily fixable for inline module, we have to detect that for js resources themselves. We have regex in JS rewriter to detect that, but it seems it is not working. The check

if "module.js" in self.path:
    return "module"
else:
    return "javascript"

works in our use case, but probably (definitively?) not something we want in production.
I'm still searching for a good way to detect that.
For wabac.js, it is easier as js is rewritten as runtime, so it knows the context.

On top of that, the player seems to be broken sometime, depending if you are clicking on the "video background" or the "play" button. Alternate clicking on video/play button launch the video.

[benoit74]

Superseeded by #228