Before we used absolute pathes to images and wrote logging messages in
stderr of a target process.

Now we are able to create fd and send it to parasite.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>