Add several missing uids and gids to modules/misc/ids.nix
SSH daemon: change default key size for RSA, add alert for weak keys.
Manual: Fix some links
sshd: Support multiple host keys

The option services.openssh.hostKeys now allows specifying multiple
host keys.  The default value enables both a DSA and ECDSA key.
(Clients by default will use the ECDSA key, unless known_hosts already
has a DSA key for that host.)  To use only an ECDSA key, you can say:

  services.openssh.hostKeys =
    [ { path = "/etc/ssh/ssh_host_ecdsa_key";
        type = "ecdsa";
        bits = 521;
      }
    ];
Fixing handling of parameters with spaces in torsocks/torify
convert bbswitch job to systemd unit

dramatically speeds up my boot time because it was the last
service (for me) that depended on udev-settle.service

udev-settle isn't needed for modern system initialization but some
oldschool services (mdadm/lvm/cryptsetup) depend on it so they can
just enumerate devices instead of having to react to changes
dynamically. In NixOS these things are usually already taken care of
during stage 1 (early ramdisk) if you use them.
power management: provide a post-resume target and unify
suspend/hibernate/hybrid-sleep handling
info program: use latest texinfo