ubuntu-cloud-prep hook: fix debug helper to not inappropriately fail

Bug found by Vincent Ladeuil <vila+ci@canonical.com>
Fix suggested by Scott Moser <smoser@ubuntu.com>

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Add lxc-test-ubuntu to the dist tarball

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
template: Add Plamo Linux template

This template allows to create Plamo Linux container on Plamo
Linux. Plamo Linux is Japanese distribution, which is originally based
on Slackware Linux.

Signed-off-by: KATOH Yasufumi <karma@jazz.email.ne.jp>
Signed-off-by: TAMUKI Shoichi <tamuki@linet.gr.jp>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>