shell/aliases: use color in dmesg, if available

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
sheel/aliases: fix cls alias

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
bin/arch-linux-grsec.sh: remove menuconfig hardconfig as grsec kernel configuration is now stable

Signed-off-by: Nicolas Iooss <nicolas.iooss_git@polytechnique.org>
bin/getaddr: create a Python script to call getaddrinfo from CLI

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