Presenting stream feature for nginx. TCP/UDP port proxy/balancing

With this patchset you will be able to set up tcp or udp proxy.

Change-Id: Ie88870d8ce7dc230ee895aaa6aa57c098f622186
diff --git a/tests/pillar/proxy.sls b/tests/pillar/proxy.sls
index 6a1a2c2..934c4e6 100644
--- a/tests/pillar/proxy.sls
+++ b/tests/pillar/proxy.sls
@@ -3,6 +3,23 @@
     enabled: true
 nginx:
   server:
+    stream:
+      rabbitmq:
+        host:
+          port: 5672
+        backend:
+          server1:
+            address: 10.10.10.113
+            port: 5672
+      unbound:
+        host:
+          bind: 127.0.0.1
+          port: 53
+          protocol: udp
+        backend:
+          server1:
+            address: 10.10.10.114
+            port: 5353
     enabled: true
     extras: false
     bind: