I'm working on Stackdriver monitoring in another branch, which required updating `google.golang.org/genproto`, which required updating `google.golang.org/grpc`, which required updating `github.com/golang/protobuf`, and so on. This PR updates all of the Google-provided deps to their latest versions. In addition, there is:
- A change in config.go to reflect an updated type name
- Five files changed by `make fmt`
Tested with `make build`, `make test`, and `make testacc`.
* Initial support for google service account keys
* Add vendor for vault and encryption
* Add change for PR comment
* Add doc and improvement fo public key management
* adding waiter for compatibility with issue google/google-api-go-client#234
* improvement
* Add test with pgp_key
* Perform doc anf format
* remove test if public_key exists
* Add link on doc
* correct pr