added basic iptables support, req by libvirt
added packages needed by libvirt
add apt-get upgrade to build.sh
Increased image size to 2GB + added various useful utilities for testing
added man-db
added libvirt install script
switched from wget to curl, added reboot message
Merge branch 'master' of git://github.com/MagnusS/xen-arm-builder into MagnusS-master

Conflicts:
	build.sh