plamo: Update template to use wget when download packages

Signed-off-by: TAMUKI Shoichi <tamuki@linet.gr.jp>
Signed-off-by: KATOH Yasufumi <karma@jazz.email.ne.jp>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>
lxc.conf: note the 'lxc.network.type = none' option

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>