fixed sed expression for syslinux config
Merge branch 'master' of lithium:/var/git/parabola-bootstrap
change mountoptions for /tmp in postinstall file
fix usage instructions
restrict root login
the ramdisk environment needs to be regenerated after postinstall
Don't install net-tools

I only used netstat(1) and ifconfig(1) and can be easily replaced by
ip(1) and ss(1)
Merge branch 'master' of lithium:/var/git/parabola-bootstrap
The automatic installation of custom builds is currently broken
don't install packages that I would like to modify