xfwm4 dialogs, be afraid

[Danny Milosavljevic]

Hi, 

Jannis wrote in thread 'xfce mcs "dialog" isn't really a dialog':

> I think it might be a nice optional feature
> for themes if they could make dialogs look different, but by default,
> the should have the same look as normal windows.

Okay, I have it check if a "dialog/" subdirectory exists in the theme, 
and fall back to the window theme parts otherwise here:

http://www.scratchpost.org/patches/dialog_is_special_v3.patch

I also updated the screenshot (theme is a bit less crappy now :)):

http://www.scratchpost.org/weitw/shot0018.png

cheers,
  Danny