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/tests/pillar/master_cluster.sls b/tests/pillar/master_cluster.sls
index 513d6b1..50af461 100644
--- a/tests/pillar/master_cluster.sls
+++ b/tests/pillar/master_cluster.sls
@@ -42,7 +42,7 @@
         hosts:
         - cmp01
         - cmp02
-        image: mirantis/virtlet:v0.7.0
+        image: mirantis/virtlet:v0.8.0
   master:
     admin:
       password: password