bashrc: disable -flto for rxvt-unicode.
bashrc: enable -flto in CC rather than CFLAGS.
myconfig/cui: add htop[cgroups].
tmux.service is a service per user.
Add urxvtd.service user service file.
auto-systemd-units.hook: check if the unit already installed.
bashrc: add packge fixes.
auto-systemd-units.hook: enable more unit types.
myconfig/host.laptop-x61: I need my fish!
myconfig/gui: there is no need for startx since we have systemd --user.
Add several systemd services for X session.