Install ifplugd by default on laptop

[Ben Roe]

I notive that Ubuntu adds some functions automatically if it detects a laptop
(installs battery-monitor etc). It would be nice if it automatically installed
ifplugd if it detects that it is running on a laptop with a non-wireless network
card configured to use dhcp.

At present, if a user installs while connected to a network, then unplugs and
reboots, they will have to wait for DHCP to time out on boot and will be left
with a non-functional network until they plug the cable back in and figure out
how to do /etc/init.d/networking restart.

If ifplugd were installed by default, the network would behave as expected:
unplug cable -> network card disables itself, plug it back in -> automatically
join network.

The current ubuntu ifplugd package works great once installed.

[Jeff Waugh (jdub)]

Hi,

We can't do this for WartyWarthog because we're too close to release, and we're
planning to impliment NetworkManager for HoaryHedgehog, so ifplugd will not be
required.