Revert "Remove laptop-detect too"

This reverts commit 9d3bb79ed886db049b6e561e60c461a79639fe1f.
Merge branch 'master' of lithium:/var/git/debian-setup
Make zsh the default shell for all users
Ensure that dotfiles haven't been cloned yet
Fixed dotfile bootstrap
Uninstall less packages
Set DEBIAN_FRONTEND and DEBCNF_NONINTERACTIVE_SEEN env
Stop APT from install recommends and suggests
Fixed dotfile bootstrap (again)
Don't uninstall bsd-mailx
Uninstall vim from debian repos on desktops

It is compiled from source later on
Updated 'Miscellaneous' section of desktop.sh

- Don't change the used debian version
- Don't add adblock related rules to /etc/hosts
- Don't setup a wallpaper
Simplify installation of elementary gtk theme
Only empty motd if it exists