Automatic merge from submit-queue
numeric ordering of kubectl outputs
**What this PR does / why we need it**:
Instead of having kubectl listing the pods in a alphabetical way:
foobar-1-build
foobar-10-build
foobar-2-build
foobar-3-build
With the parameter --sort-by '{.metadata.name}' it now gives:
foobar-1-build
foobar-2-build
foobar-3-build
foobar-10-build
**Which issue this PR fixes**
https://github.com/openshift/origin/issues/7229
**Special notes for your reviewer**:
I have followed the dependencies requirements from https://github.com/kubernetes/community/blob/master/contributors/devel/godep.md
**Release note**:
```release-note
Import a natural sorting library and use it in the sorting printer.
```