The `page.version` variable is set to a value like "1.x", while github
releases always have a version with 3 parts (like "1.x.y"). Using
`page.version` by itself in a kubernetes tree link does not work and
each of the changed links below 404s right now.
In the future, it might make sense to instead have a version variable
that includes the patch number as well.
For 617: changed the master setup instructions to install the kubelet
after Calico. Also noted the additional file, to fix 616 and replaced
`rkt` with `cni` to fix 614.