…ansion

Enable hostpath expansion

It turned out that changes like
kubernetes-csi/csi-lib-utils#33 should better
have been committed after `go mod tidy` because that adds some
indirect dependencies in that example.

The revised `test-vendor` checks for that and (just in case that this
ever becomes desired) allows projects to not have a vendor directory
when using `go mod`.

How to use `go mod` properly gets documented in the README.md, because
there are such pitfalls.

This script handles the necessary "replace" statements and determines
which packages need to be updated in lockstep.

Signed-off-by: Deep Debroy <[email protected]>

Build Windows only for amd64

update Go mod support

errors when the depth is exactly 50.

Do full git clones in travis

The conversion was done with
   go mod init
   go mod tidy
   go mod vendor

go-get-kubernetes.sh and overriding k/k modules were not necessary.