Update virtlet deployment procedure.

Added dockershim service.
Removed kubelet.conf as not required.
Bump version to v0.8.0.

Change-Id: I6527213b3db3c8e9f2a5f1e8349624f9353fccaa
diff --git a/metadata/service/master/single.yml b/metadata/service/master/single.yml
index 61464f7..fb9cfeb 100644
--- a/metadata/service/master/single.yml
+++ b/metadata/service/master/single.yml
@@ -61,7 +61,7 @@
         virtlet:
           enabled: False
           namespace: kube-system
-          image: mirantis/virtlet:v0.7.0
+          image: mirantis/virtlet:v0.8.0
       token:
         admin: ${_param:kubernetes_admin_token}
         kubelet: ${_param:kubernetes_kubelet_token}