Fixed issue #101 with Vimeo API and FidVids

The problem is that FidVids inserts an id on the the given iframe, making the vimeo froogaloop js library stop working, hence the src needs the player_id param to work. I'm adding the player_id param to the vimeo src url, and making the froogaloop library to work as expected.

http://developer.vimeo.com/player/js-api