Checkpoint-restore tool v1.1

Hi guys!

The stabilization period for 1.1 is over so we tagged the release.

The greatest new feature for 1.1 as compared to 1.0 is the API for plugins. Now it's possible to help CRIU dump and restore stuff that cannot be handled in a generic way, like device files or connections to host system from a container.

More details on the plugins are described on http://criu.org/Plugins

Other that this we have images deduplication, systemd integration and a LOT of bugfixes.

The detailed changelog is here: http://criu.org/Releases#v._1.1
The sources here: http://download.openvz.org/criu/criu-1.1.tar.bz2
Docs, news and more at http://criu.org

Thanks,
Pavel