Add Google Analytics to applet and three more contributors to the credits
Added some docs.

I was confused about what was going on with the UIMenuConfigControls.ButtonDefinition class, so I looked around and added some comments.
Fixed UIStateButton style.

I know it's deprecated, but it's still being used, so there you go.
Style & docs for UIWindow.

I'm still looking through code to see where I should put my changes.  Along the way, I figure why not update the style and docs?
Reordered & doc'd a bit.

Slowing changing UIMenuConfigControls to extract some core functionality that I
want to use in other config menus.
Style.