[Player] wrong aspect ratios before play

[nitedog]

The player has a 4:3? aspect ratio, and when the movie starts playing, there is empty space above and below the film. Also the poster image appears squished.

[yatil]

This should be fixed in the dev version at http://w3c.github.io/wai-showcase-examples/Overview.html

[nitedog]

It is! Thanks!