Add an example debian/ubuntu /etc/network/interfaces

Related to issue #15

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Add an example ubuntu /etc/default/xen

Related to issue #12

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Add an example Ubuntu /etc/default/grub

Related to issue #14

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Separate RHEL/CentOS network config from Debian/Ubuntu

Related to #15

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Parameterise network configuration over distro type

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
The path to whiptail varies by platform

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
The path to 'service' varies by platform

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Critical bugfixes

I need a typechecker

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Keep track of whether we actually need to rewrite /etc/network/interfaces or not

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #17 from djs55/ubuntu-support

Fix up the network configuration on ubuntu