kubernetes: hide contrib (#320)

This is purely travis (and maybe local testing). Does not warrent (IMHO)
a contrib/ directory. Hide it in a .travis directory.

.travis/kubernetes/nginx-rc.yml

@@ -0,0 +1,19 @@
+apiVersion: v1
+kind: ReplicationController
+metadata:
+  name: nginx-controller
+  namespace: poddemo
+spec:
+  replicas: 2
+  selector:
+    role: load-balancer
+  template:
+    metadata:
+      labels:
+        role: load-balancer
+    spec:
+      containers:
+        - name: nginx
+          image: coreos/nginx
+          ports:
+            - containerPort: 80