Kube version bump; test on 1.13 and drop 1.11 (apache#449)

Author: dgrove-oss

.travis.yml

@@ -9,10 +9,11 @@ env:
   - secure: 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
   - secure: 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
   matrix:
+    # Keep 1.10 in testing matrix because stable version of Docker for Mac has Kube v1.10.
     - TRAVIS_KUBE_VERSION=1.10 OW_INCLUDE_SYSTEM_TESTS=true OW_CONTAINER_FACTORY=docker
-    - TRAVIS_KUBE_VERSION=1.10 OW_INCLUDE_SYSTEM_TESTS=false OW_CONTAINER_FACTORY=kubernetes
-    - TRAVIS_KUBE_VERSION=1.11 OW_INCLUDE_SYSTEM_TESTS=true OW_CONTAINER_FACTORY=docker
     - TRAVIS_KUBE_VERSION=1.12 OW_INCLUDE_SYSTEM_TESTS=true OW_CONTAINER_FACTORY=docker
+    - TRAVIS_KUBE_VERSION=1.13 OW_INCLUDE_SYSTEM_TESTS=true OW_CONTAINER_FACTORY=docker
+    - TRAVIS_KUBE_VERSION=1.13 OW_INCLUDE_SYSTEM_TESTS=false OW_CONTAINER_FACTORY=kubernetes
 
 services:
   - docker

docs/k8s-technical-requirements.md

@@ -22,7 +22,7 @@
 The Kubernetes cluster on which you are deploying OpenWhisk must meet
 the following requirements:
 * [Kubernetes](https://github.com/kubernetes/kubernetes) version 1.10+.
-  Our automated testing currently covers Kubernetes versions 1.10, 1.11 and 1.12.
+  Our automated testing currently covers Kubernetes versions 1.10, 1.12 and 1.13.
 * The ability to create Ingresses to make a Kubernetes service
   available outside of the cluster so you can actually use OpenWhisk.
 * Unless you disable persistence (see