FTR, commands used to change arch=() and then verify the changes:

$ sed -Ei "/^arch=/{s/ *?['\"]?i686['\"]? *?//;s/ *$//}" */*/PKGBUILD*

$ grep -r i686 * | grep arch= | grep -v repos

$ svn diff | grep -A 1 ^-[^-] | grep -v -- -- | cut -c2- |
  while IFS=$'\n' read -r l1; IFS=$'\n' read -r l2; do
    echo "$l1 -> $l2"
  done | sort -u

Kill user processes on logout (fix second login with systemd >= 222); update Xsession file with changes from LightDM

- Remove iso-codes dependency as it's not essential

- Improve Xsession file
- Hide language selection from greeter (it doesn't work)

- Add iso-codes to dependencies

lxdm put loginuid.so before systemd.so so that auditing is available for user sessions

Add pam_loginuid.so to authenticate user session