use alternative method to start X server on login
xterm: increase saved lines, remove toolbar, disable clipboard
xmobar: specifying position is not required
systemd: do not launch window manager
systemd: start xorg target before launching window manager
scripts: can't use env variables as systemd is removing them
systemd: unit services require xorg.target and DISPLAY variable
script: update exherbo local repositories and update metadata
xmobar: fix update rate of uptime and clock