catalog,po: update Polish translation Patch updates Polish translation with new strings from org.freedesktop.import1.policy.in, as well as incorporates updates in catalog and po files to accommodate recent changes in the original strings (commits 2e219e5672689dad60e110f0b3366765506c4c58 and 2057124e7910c4cab7e53d26e0c3749d326ae2bb). https://bugs.freedesktop.org/show_bug.cgi?id=88707
man: improve grammar and word formatting in numerous man pages Use proper grammar, word usage, adjective hyphenation, commas, capitalization, spelling, etc. To improve readability, some run-on sentences or sentence fragments were revised. [zj: remove the space from 'file name', 'host name', and 'time zone'.]
logind: add infrastructure to keep track of machines, and move to slices - This changes all logind cgroup objects to use slice objects rather than fixed croup locations. - logind can now collect minimal information about running VMs/containers. As fixed cgroup locations can no longer be used we need an entity that keeps track of machine cgroups in whatever slice they might be located. Since logind already keeps track of users, sessions and seats this is a trivial addition. - nspawn will now register with logind and pass various bits of metadata along. A new option "--slice=" has been added to place the container in a specific slice. - loginctl gained commands to list, introspect and terminate machines. - user.slice and machine.slice will now be pulled in by logind.service, since only logind.service requires this slice.