Add .bash_logout file

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
Add .profile with Debian file

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
Fix install.sh return value

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
Add a small text describing XDG configuration

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>