configure.ac: add --enable-deprecated flag - lxc-clone and lxc-start-ephemeral are marked deprecated. We add a --enable-deprecated flag to configure.ac allowing us to enable these deprecated executables - update tests to use lxc-copy instead of lxc-clone Signed-off-by: Christian Brauner <christian.brauner@mailbox.org>

Add tests for snapshot clone dependencies Test edge cases (removing first and last entries in lxc_snapshots and the very last snapshot) and make sure original container isn't destroyed while there are snapshots, and is when there are none. Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com> Acked-by: Stéphane Graber <stgraber@ubuntu.com>