Fix version in metadata.yml

Change-Id: Icba451151492d028a6cc64c33a5630f7f6f84d96
diff --git a/metadata.yml b/metadata.yml
index f73a450..ee39cb8 100644
--- a/metadata.yml
+++ b/metadata.yml
@@ -1,3 +1,3 @@
 name: "ceilometer"
-version: "0.2"
+version: "2016.4.1"
 source: "https://github.com/openstack/salt-formula-ceilometer"