Adds 2 buttons to Vimeo's HTML5 video player:
* REPEAT — for listening good music
* SPEED (playback rate) — for slow presentations
Added playlist support. Always add buttons always.
More Vimeo compatibility.
Bug with sometimes showing buttons twice and sometimes not at all.
+support for embedded vimeo (on player.vimeo.com).
Use onTimeUpdate instead of onEnded, to listen to before-the-end, to make it work in playlists etc.