Merge branch 'master' of https://github.com/kubernetes/kubernetes.github.io into release-1.6

* 'master' of https://github.com/kubernetes/kubernetes.github.io: (136 commits)
  Clarify minimum version of kubernetes supporting PSP authz
  Fix typo: federation-controller-mananger => federation-controller-manager
  Fix typo: federation-controller-mananger => federation-controller-manager
  fix command kubectl get svc,pod output
  limitrange-update
  doc-walkthrough-content
  package apt-transport-https should be installed
  Fix apimachinery vendored dependencies in examples_test.
  Delete the parameter "--google-json-key string"
  Removed Extra space in the KUBE2GO commit
  Added KUBE2GO.io
  fix some wrong links
  Update hello-minikube.md
  show kubectl_rollingupdate svg
  Fixed flag for eviction-soft.
  Update review-issues.md
  Move Guide topic: Garbage Collection. (#2488)
  Update source-ip.md
  Update source-ip.md
  concepts/abstractions: init containers example.
  ...

_data/guides.yml

@@ -228,5 +228,5 @@ toc:
   - title: Federation Components
     section:
     - docs/admin/federation-apiserver.md
-    - title : federation-controller-mananger
+    - title : federation-controller-manager
       path: /docs/admin/federation-controller-manager