update release-tools#146

Merged

k8s-ci-robot merged 14 commits intokubernetes-csi:release-1.2from

pohly:prow-update-release-1.2

Jul 16, 2019

Commits on Apr 15, 2019

Commits on May 11, 2019

build.make: allow repos to use 'go mod' for vendoring
pohly
committed

Commits on May 13, 2019

Merge pull request #19 from pohly/go-mod-vendor
k8s-ci-robot
authored

Commits on Jul 8, 2019

Commits on Jul 11, 2019

Commits on Jul 12, 2019

Commits on Jul 15, 2019

prow.sh: tag master images with a large version number
msau42
committed

Commits on Jul 16, 2019