FAQ: Clearer instructions for Debian and Ubuntu users.
builder: Run 'apt-get update' before trying to install packages.
resize: Add --no-sparse flag to let you turn off sparse copying.

Useful when the target is a block device containing old data.
builder: Fix output to block devices.

If the output is a block device:

- Detect the size of the output device.

- Don't attempt to delete the output device on failure.

- Turn off sparse copying in virt-resize.
builder: Fix typo in man page.
builder: debian/ubuntu: Add notes about running dpkg-reconfigure.

Required to regenerate SSH host keys.
builder: Tidy up release notes for operating systems.
builder: Add short synopsis in --help output.
builder: Add --notes option.

This displays the release notes.
firstboot: Fix firstboot scripts so they work on Ubuntu.

Ubuntu 13.10 has /etc/systemd but uses Upstart.  This confuses the
script because it assumed that if you have /etc/systemd then you are
using systemd.  Ubuntu includes systemd services (inherited from
Debian) but they just don't run.