Implement Aodh salt formula

This CR adds following things:
- Configs and sls scripts for Aodh packages installation
- aodh.conf template and parameters
- Heka config for aodh logs parsing
diff --git a/metadata.yml b/metadata.yml
index 0542811..bac9bbe 100644
--- a/metadata.yml
+++ b/metadata.yml
@@ -1,3 +1,3 @@
 name: "aodh"
-version: "0.1"
+version: "2016.4.1"
 source: "https://github.com/tcpcloud/salt-formula-aodh"