Upgrade docker to 1.x on master

Many newer features are available in Docker after 1.0 release, including host networking and several performance boosts.

Fuel upgrade needs to be redesigned to meet the following changes:
1. back up container data prior to host changes
2. perform docker upgrade process first, preferrably without the entire Puppet run because it is quite fragile.
3. continue upgrade process as before

Fuel ugrade script should perform the docker upgrade task as follows:
1. add the repo with new docker
2. shutdown daemons under the supervisor
3. make sure that all of the containers are stopped
4. shutdown docker
5. install new rpm package
6. start supervisor (and it should start all of the containers)
7. verify that system works and required services (postgresql, cobbler, astute) work as expected