install: fix puavo-register device type preseed arg
install: add primary user prompt for personal_laptop_500G preseed
Introduce puavo-unity-greeter, that uses /etc/dconf/profile/lightdm
as dconf-profile if it exists.
install: fix personal_laptop_500G preseed to disable automatic image updates
install: add l10n support for updater applet
install: add finnish translations
Add swedish translations
install: only puavolocaladmins and root are allowed to call org.puavo.client.Daemon
install: fix typo
install: extract "list old images" -functionality to a separate script