I structured related problems. Tell me if i'm wrong.

1. Move kdmtsac to kdm dir

Arguments: it's binary and it's place is not in kdmLIB directory. And it's used only by kdm.

2. move tsac to kdm too

Arguments: The same + it's too small for separate module and hightly integrated with kdm

3. Chose a good flag for tsac support by kdm e.g.: WITH_TSAC

4. Move krootbacking to kscreensaver and add flag WITH_KROOTBACKING

Arguments: it's too small, highly integrated with kscreensaver by logic and nobody else using it.

previous patch was just a temporary workaround...