There was one issue with lmce-skins-titanium which has been rectified. The other issue with one file being in two packages can only be fixed manually on your system. dpkg -r the pluto package, followed by apt-get -f install should fix it.
Order of action for you:
apt-get update
apt-get upgrade
dpkg -r --force-all pluto-skins-basic
apt-get -f install
should do the trick.