Features:
+* add "loginctl unlock-sessions" as counterpart for "loginctl lock-sessions"
+
+* add a man page "systemdall" that lists all of systemd's man pages, inspired by zsh's "zshall" page
+
* print a nicer explanation if people use variable/specifier expansion in ExecStart= for the first word
* kernel cmdline switch to turn of predictable network interface names
* readahead: when bumping /sys readahead variable save mtime and compare later to detect changes
* (attempt to) make Debianites happy:
- - implement .d/ auto includes for unit files
- add syntax to reset ExecStart= lists (and similar)
* move passno parsing to fstab generator