Add's support for Juniper Contrail packaging + test-kitchen (#2)

* Add's support for Juniper packaging
 - handle vendor packaging differences
 - map.jina loaded from yaml
 - test kitchen validation on Travis
 - multiple test/pillars fixtures
 - .kitchen.vagrant.yml for tests not passing on docker
 - fix, remove virtual package name as full is required

* Fix epcim complains about non reclass usage test

Change-Id: I7b4892cce1063f583b045954b6b64b30d3b01a65

* Update contrail-vrouter-agent.conf for lbaas

* Juniper: Allow downgrades while installing pkgs on controller nodes; precreate cassandra data dir
diff --git a/tests/pillar/single.sls b/tests/pillar/single.sls
index faba0dc..e04824e 100644
--- a/tests/pillar/single.sls
+++ b/tests/pillar/single.sls
@@ -54,6 +54,7 @@
     - host: 127.0.0.1
       id: 1
   control:
+    name: ntw-01
     version: 3.0
     enabled: true
     bind:
@@ -102,6 +103,8 @@
   web:
     version: 3.0
     enabled: True
+    network:
+      host: 127.0.0.1
     bind:
       address: 127.0.0.1
     analytics: