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/bindep.txt b/bindep.txt
new file mode 100644
index 0000000..ba84cc5
--- /dev/null
+++ b/bindep.txt
@@ -0,0 +1 @@
+python-yaml