Bug#407930: desktop-base 4.0.0 MIGRATED to testing

[Fathi Boudra <fboudra@free.fr>]

hi michael,

debian-blueish-wallpaper r42 is the original.
My changes r56 is just width/height adjustment -> 1024x768 to 1600x1200
to have the swirl centered. My changes r58 is svg source cleanup so the file 
is much more smaller:
* r56 size : 108.9 kb
* r58 size : 18.3 kb

it was too nice to reduce the file by a factor 6 ... i must have lost some 
properties between r56 and r58.

i reverted the wallpaper to r56 in svn to see if it resolves the issue.

cheers,

Fathi