* Merge from debian unstable. Remaining changes: - Add Replaces/Provides for powernowd and apmd, to allow installation with *ubuntu-desktop meta packages. - Drop changes for powerdev group used for dbus access on Debian: + Drop debian/patches/dbus_access.patch. + Drop debian/patches/man_powerdev_group.patch. + Drop debian/NEWS. + Drop debian/powersaved.postinst. + Do not depend on adduser package. + Remove Security section from README.Debian.