Compile xz with '-fPIC', as dovecot cannot link against it without.
Adding dovecot, an IMAP and SASL daemon.
Adding postfix, a mail transfer agent.
Adding discount, a Markdown->HTML processor in C.
Adding 9base-local, a full 9base installation in /local/plan9.
Adding the Go 1.2 compiler as a /local installation.
Enable kernel modules for iptables.