* Added patch by Richard Marks <ccpsceo@gmail.com> - Jan 07, 2011.

Added patch to Screen.as. resize(width, height) function for fluid screen
size. Patch, first assigns new width and height to FP.width and FP.height.
Then removes two layers of screen bitmap buffers from parent container
_sprite. It then replaces the two screen bitmap buffers with a new Bitmap
with the newly assigned width and height values (obtained from the
constructor) and add them back to the parent container _sprite in the
same previous order. FP.buffer is then reassigned the screen bitmap buffer
[0].bitmapData. It also reassigned FP.bounds.width and height, and this._width
and height. Finally calling update();