Fix systemd reload and calico unit

roles/docker/tasks/main.yml

roles/etcd/handlers/main.yml

roles/etcd/tasks/configure.yml

roles/etcd/tasks/main.yml

roles/etcd/templates/etcd.service.j2

roles/kubernetes/master/handlers/main.yml

roles/kubernetes/master/tasks/main.yml

roles/kubernetes/node/handlers/main.yml

roles/kubernetes/node/tasks/main.yml

roles/network_plugin/tasks/calico.yml

roles/network_plugin/templates/calico/calico-node.service.j2