update run_tests.sh to latest

  * Disable support:collectd as outdated
  * Fix test pillars
  * Fix prometheus.yml

Change-Id: Ib0db64659d2ded40269cd85156d32090394264ae
diff --git a/metadata/service/support.yml b/metadata/service/support.yml
index 8bed1d0..a4ebffe 100644
--- a/metadata/service/support.yml
+++ b/metadata/service/support.yml
@@ -8,7 +8,7 @@
       telegraf:
         enabled: true
       collectd:
-        enabled: true
+        enabled: false
       heka:
         enabled: true
       grafana: