Screen Rez Update

Hi all,

Yet another update for screen rez issues.
Let me know if there are any problems.

I've added launch commands to force the rez you want if need be:
Launch options:
-Res (number is the X size. The game will auto calculate a 16:9 size)
-Fullscreen (Optional. Force full screen)
-BFullscreen (Optional. Force borderless full screen)

e.g. -Res 1280

If you have a problem, can you run with -log and post your debug.txt in the bugs forum?

Thanks
Steve.