specify layout in url



want a way to test out new layouts


specify  layout=xxxx in url.


uses builtin layout if available, then looks for card, then defaults to *layout, then hardcoded layout.



tried it and reviewed code.  woohoo!

I'm still iffy about requiring layout read permissions for them to work, but that's neither here nor there. Or at least, it's not here.

  --Ethan McCutchen.....Sun Nov 15 12:30:35 -0800 2009