it seems kde 4.10 does not yet use udisks2

With udisks1, I do see my usb/cardreader drives.
With udisks2, I don't.

So this probably needs to be configured at build-time.
As udisks1 does work, I don't care all that much.

pkgs/desktops/kde-4.10/kdelibs/kdelibs.nix

@@ -57,7 +57,7 @@ kde {
     "-DHUPNP_ENABLED=ON"
   ];
 
-  passthru.wantsUdisks2 = true;
+  passthru.wantsUdisks2 = false;
 
   meta = {
     description = "KDE libraries";