Moved whonix_workstation/etc/kde4/kdm/kdmrc to whonix_shared/etc/kde4/kdm/kdmrc.
gateway and workstation, package selection:
Removed virtuoso-minimal, which was installed as workaround in
0787deb78d24678d87ef704ed206dd0b6b4d7e3e as dependency for nepomuk (nepomuk comes with kde-workspace).
Since nepomuk now gets disabled, virtuoso is no longer required.