Features:
+* tmpfiles: to make sure we don't delete unpacked tarballs with old timestamps right-away never delete stuff that is inside a directory with a new mtime
+
* "systemctl mask" should find all names by which a unit is accessible
(i.e. by scanning for symlinks to it) and link them all to /dev/null
* test/:
- add 'set -e' to scripts in test/
- make stuff in test/ work with separate output dir
- - remove all the duplicated code in test/
+ - qemu wrapper script: http://www.spinics.net/lists/kvm/msg72389.html
* systemctl delete x.snapshot leaves no trace in logs (at least at default level).