This update provides:
1)  workaround around the build failures. In
summary, it forces the download of some packages during the build
process.
2) update the set of packages that should go inside the vendor
directory
3) Update the dockerfile to use go 1.10

Change-Id: I2bfd090ce0f25b0c10aa214755ae2da7e5384d60
diff --git a/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/internal/stream_chunk.proto b/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/internal/stream_chunk.proto
new file mode 100644
index 0000000..55f42ce
--- /dev/null
+++ b/vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/internal/stream_chunk.proto
@@ -0,0 +1,15 @@
+syntax = "proto3";
+package grpc.gateway.runtime;
+option go_package = "internal";
+
+import "google/protobuf/any.proto";
+
+// StreamError is a response type which is returned when
+// streaming rpc returns an error.
+message StreamError {
+	int32 grpc_code = 1;
+	int32 http_code = 2;
+	string message = 3;
+	string http_status = 4;
+	repeated google.protobuf.Any details = 5;
+}