Add godoc to the repo root. (virtual-kubelet#702)

Remove vendor/ (virtual-kubelet#688)

Vendoring seems to be problematic with go modules.
In addition to causing issues with transitive dependencies and being
problematic when trying to pull in the node-cli code, it also seems to
be pulling different versions than what is computed in go.mod.
This can be seen by comparing commits from the computed version in
go.mod with very small diffs (like a single Godep change in k8s) but massive
vendoring changes.

Basically I have very little confidence that this is even working.
This should be better in go1.13, but this is not released yet.

Fix error handling for delete pod (virtual-kubelet#685)

* Fix error handling for delete pod

- Error handling was looking for a k8s error from the provider, but
  providers should be using errdefs.
- Error handling was returning early if pod was not found and deleting
  from k8s in all other cases.

* Don't run unit tests twice

Add license details on file heads. (virtual-kubelet#665)

Realized as I was starting to copy some stuff to other repos that we
should go ahead and add this.

20190506.1

20190405.1

20190321.1

20190116.2

Revert "Use 1 worker by default" (virtual-kubelet#432)

This reverts commit f105965.

Makes our default worker count back to 10 now that concurrency is in
good shape.

20181201.1