Just sync the documentation up since the latest [virt7-docker-common-release](http://cbs.centos.org/koji/packages?tagID=112) has newer packages that work together.

Tested this on a single node Centos 7.1 node with the following packages and it all works well so far:

```
 yum list -q docker etcd kubernetes flannel
Installed Packages
docker.x86_64                                1.8.2-7.el7.centos                                  @extras
etcd.x86_64                                  2.1.1-2.el7                                         @extras
flannel.x86_64                               0.2.0-10.el7                                        @extras
kubernetes.x86_64                            1.1.0-0.4.git2bfa9a1f.el7                            @virt7-docker-common-release
```