python3: binding update

This adds rename(new_name) to the binding as well as two new const,
LXC_CLONE_KEEPBDEVTYPE and LXC_CLONE_MAYBE_SNAPSHOT.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
python3: Don't fail in list_containers on ValueError

ValueError typically means that the user doesn't have permissions to
access the directory. Raising an exception there isn't consistent with
other error behaviour of list_containers which simple returns an empty
tuple.

So simply catch the exception and ignore it. An error message is already
printed by LXC itself anyway.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
lxc-ls: Add -f and -F as aliases

Alias -f to --fancy and -F to --fancy-format.

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
init: Add upstart jobs and some more changes

This adds the 3 upstart jobs that we've had in Ubuntu for a while:
 - lxc.conf: Main upstart job, triggers lxc-net.conf based on config
 - lxc-instance.conf: Triggered by lxc.conf for each auto-started container
 - lxc-net.conf: Triggered by lxc.conf, sets up lxcbr0, NAT, mangling, ...

In addition, there are two extra config files in /etc/default:
 - lxc: Allows setting some values like http proxying, disabling autostart, ...
 - lxc-net: Network configuration for the lxcbr0 bridge

This change also disables the sysv script for all distros but Oracle as
the current script won't work on either Ubuntu nor Debian and I suspect
quite a few more distros, so it's not nearly as distro-agnostic as we
thought.

For Debian, only install the upstart jobs and systemd unit.
For Ubuntu, only install the upstart jobs.

This change also moves all the init related stuff to config/init/

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>