Update dom.js

- classid and all of the embed tag were invalid html, now it's OK for XHTML-strict and HTML5

- I set the CSS for WxH to 100%/100% although inherit/inherit is also an option.

- I placed allowScriptAccess on top as it's a permission thing, and in some players need to be there.

- I set it to noscale to noscale as it will leave content alone and cropping then is possible.

- wmode transparent and BG ffffff is a conflict, I removed the BG.

- having wmode set to "window" solved an actual pesky mysterious bug when using the hoverClass (no toggle on mouseleave):
  http://stackoverflow.com/a/6050201/1399595

- I wrote flashvars as FlashVars, even though that probably only benefits older players.