Add memcached_check alarm and alarm cluster
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index 2900f86..1d29c3c 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -4,7 +4,7 @@
       collectd:
         enabled: true
       heka:
-        enabled: false
+        enabled: true
       sensu:
         enabled: false
       sphinx: