Shiny: Move theme files into desktop-themes

In preparation for the Gtk+ 3 theme
Shiny: Import Gtk+ 3 theme

Taken from http://gnome-look.org/content/show.php?content=164764
Done by Ambiance-69
Shiny: First attempt on mate-application css files.

A simple copy and paste with name changed.
Shiny: add openbox, unity and xfwm4 themes
Shiny: Trailing whites space be gone