Update go dependencies

vendor/github.com/census-instrumentation/opencensus-proto/README.md

@@ -0,0 +1,80 @@
+OpenCensus Proto - Language Independent Interface Types For OpenCensus
+===============================================================
+[![Build Status][travis-image]][travis-url]
+[![Maven Central][maven-image]][maven-url]
+
+Census provides a framework to define and collect stats against metrics and to
+break those stats down across user-defined dimensions.
+
+The Census framework is natively available in many languages (e.g. C++, Go,
+and Java). The API interface types are defined using protos to ensure
+consistency and interoperability for the different implementations.
+
+## Quickstart
+
+### Install to Go
+
+```bash
+$ go get -u github.com/census-instrumentation/opencensus-proto
+```
+
+In most cases you should depend on the gen-go files directly. If you are
+building with Bazel, there are also go_proto_library build rules available.
+See [PR/132](https://github.com/census-instrumentation/opencensus-proto/pull/132)
+for details. However, please note that Bazel doesn't generate the final
+artifacts.
+
+### Add the dependencies to your Java project
+
+For Maven add to `pom.xml`:
+```xml
+<dependency>
+  <groupId>io.opencensus</groupId>
+  <artifactId>opencensus-proto</artifactId>
+  <version>0.0.2</version>
+</dependency>
+```
+
+For Gradle add to dependencies:
+```gradle
+compile 'io.opencensus:opencensus-proto:0.0.2'
+```
+
+[travis-image]: https://travis-ci.org/census-instrumentation/opencensus-proto.svg?branch=master
+[travis-url]: https://travis-ci.org/census-instrumentation/opencensus-proto
+[maven-image]: https://maven-badges.herokuapp.com/maven-central/io.opencensus/opencensus-proto/badge.svg
+[maven-url]: https://maven-badges.herokuapp.com/maven-central/io.opencensus/opencensus-proto
+
+### Add the dependencies to Bazel project
+
+In WORKSPACE, add:
+```
+git_repository(
+    name = "io_opencensus_proto",
+    strip_prefix = "src",
+    tag = "v0.0.2", # CURRENT_OPENCENSUS_PROTO_VERSION
+    remote = "https://github.com/census-instrumentation/opencensus-proto",
+)
+```
+or
+
+```
+http_archive(
+    name = "io_opencensus_proto",
+    strip_prefix = "opencensus-proto-master/src",
+    urls = ["https://github.com/census-instrumentation/opencensus-proto/archive/master.zip"],
+)
+```
+
+In BUILD.bazel:
+```bazel
+proto_library(
+    name = "foo_proto",
+    srcs = ["foo.proto"],
+    deps = [
+      "@io_opencensus_proto//opencensus/proto/metrics/v1:metrics_proto",
+      "@io_opencensus_proto//opencensus/proto/trace/v1:trace_proto",
+      # etc.
+    ],
+)
+```