Features:
+* Get rid of MemorySoftLimit=
+
+* After coming back from hibernation reset hibernation swap partition
+
+* mounts: do not test each mount unit against each other mount unit to
+ determine prefixes. Instead generated list of all prefixes and
+ interate through that to bring down complexity from O(n^2) to O(n)
+ when loading units
+
* Move backlight and random-seed into /var/lib/systemd
* If we try to find a unit via a dangling symlink generate a clean