Merge pull request kubernetes-sigs#600 from nilo19/doc/release-0.7.4

doc: release v0.7.4

Merge pull request kubernetes-sigs#588 from nilo19/chore/fix-log

fix: support sharing the primary slb when there are both external and internal load balancers in the cluster

Merge pull request kubernetes-sigs#525 from feiskyer/fix-azurestack-c…

…loud

Allow disabling AzureStackCloud API versions when using AzureStackCloud config on public cloud

Merge pull request kubernetes-sigs#516 from feiskyer/release-docs-update

Prepare release notes for release v0.7.1

Merge pull request kubernetes-sigs#458 from feiskyer/prepare-0.7.0

Release Cloud Provider Azure v0.7.0

Merge pull request kubernetes-sigs#381 from feiskyer/ensable-search

Enable search for website

Merge pull request kubernetes-sigs#330 from feiskyer/update-vendor

Update Kubernetes vendor to commit 6652347ceea9

Merge pull request kubernetes-sigs#324 from wawa0210/master

[Trival] replace beta label beta.kubernetes.io/os to GA label for kubernetes

Merge pull request kubernetes-sigs#275 from feiskyer/add-lint

Add more verifications and fix verify failures

Merge pull request kubernetes-sigs#269 from chewong/k8s-1-17

Upgrade Kubernetes vendor to v1.17.0