all: Update protobuf package 1.0.0 -> 1.2.0 (#5452)

Also adds a few file global options to keep the generated code similar
to what we already had.

vendor/github.com/minio/sha256-simd/.travis.yml

@@ -0,0 +1,23 @@
+sudo: required
+dist: trusty
+language: go
+
+os:
+- linux
+
+go:
+- tip
+- 1.11.x
+
+env:
+- ARCH=x86_64
+- ARCH=i686
+
+matrix:
+  fast_finish: true
+  allow_failures:
+  - go: tip
+
+script:
+- diff -au <(gofmt -d .) <(printf "")
+- go test -race -v ./...