Add new dhclient helper scripts

These allow easy customization of the DHCP client parameters, EG:

	iface eth0 inet manual
		minimally-up true
		dhcp-custom -1 -4
		dhcp-norelease

	iface eth0 inet6 manual
		dhcp-custom -1 -6 -P -N
		dhcp-norelease

Signed-off-by: Kyle Moffett <kyle@moffetthome.net>
Run the bond-device if-up.d hook earlier.

We need to make sure it gets run before shorewall gets restarted.

Signed-off-by: Kyle Moffett <kyle@moffetthome.net>
jklm-bootgen: Add chainloading between boot disks.

This allows you to update only a secondary drive with the new image,
reboot from the primary drive, and chainload into the secondary drive to
test.  If it fails, you just reboot again and allow it to boot normally.

Signed-off-by: Kyle Moffett <kyle@moffetthome.net>
jklm-bootgen: Support /dev/disk/* paths

GRUB-2 apparently doesn't link symlinks on its command line, for
whatever reason.

Signed-off-by: Kyle Moffett <kyle@moffetthome.net>
apt-sources: Upgrade to the new Debian stable ("squeeze" => "wheezy")

Let's not fall too far behind, shall we?

Signed-off-by: Kyle Moffett <kyle@moffetthome.net>