default artwork gnome-3.2

I know it's better to don't patch packages but I've patch gnome-shell for already have shutdown option.

The gnome-shell menu.

The windows

The gnome-shell dock.

# pacman-g2 -S gnome-shell-extensions-dock

DesktopFolders (add to startup for have it on boot)

# pacman-g2 -S desktopfolders

Thanks to devil505 for the themes,icons...