Update release notes. (#1379)

Author: coryan

google/cloud/CMakeLists.txt

@@ -43,6 +43,7 @@ set(
     )
 set(DOXYGEN_PREDEFINED "GOOGLE_CLOUD_CPP_NS=v${GOOGLE_CLOUD_CPP_VERSION_MAJOR}")
 set(DOXYGEN_EXCLUDE_PATTERNS
+    "*/google/cloud/README.md"
     "*/google/cloud/internal/*"
     "*/google/cloud/bigtable/*"
     "*/google/cloud/firestore/*"

google/cloud/README.md

@@ -0,0 +1,35 @@
+# Google Cloud C++ Client Libraries
+
+[![Documentation][doxygen-shield]][doxygen-link]
+
+[doxygen-shield]: https://img.shields.io/badge/documentation-master-brightgreen.svg
+[doxygen-link]: http://GoogleCloudPlatform.github.io/google-cloud-cpp/
+[quickstart-link]: http://GoogleCloudPlatform.github.io/google-cloud-cpp/
+
+This directory contains the following C++ client libraries:
+ 
+* [Cloud Bigtable](bigtable/README.md)
+* [Google Cloud Storage](storage/README.md)
+
+In addition some utilities shared across these libraries are also found here.
+Most of these utilities are in the `google::cloud::internal` namespace, and are
+not intended for direct use by consumers of the C++ client libraries.
+
+## Documentation
+
+Documentation for the common utilities is  
+is available [online][doxygen-link].
+
+## Release Notes
+
+### 2018-11
+
+* `google::cloud::optional<T>` an intentionally incomplete implementation of
+  `std::optional<T>` to support C++11 and C++14 users.
+* Applications can configure `google::cloud::LogSink` to enable logging in some
+  of the libraries and to redirect the logs to their preferred destination.
+  The libraries do not enable any logging by default, not even to `stderr`.
+* `google::cloud::SetTerminateHandler()` allows applications compiled without
+  exceptions, but using the APIs that rely on exceptions to report errors, to
+  configure how the application terminates when an unrecoverable error is
+  detected by the libraries.

google/cloud/bigtable/README.md

@@ -21,6 +21,18 @@ is available [online][doxygen-link].
 
 ## Release Notes
 
+### v0.3.0 - 2018-11
+
+* Include an example that illustrates how to use OpenCensus and the Cloud
+  Bigtable C++ client library.
+* Experimental asynchronous APIs.
+* Several cleanups around dependency management with CMake.
+* Jason Zaman contributed improvements and fixes to support soversion numbers
+  with CMake.
+* Lots of improvements to the code coverage in the examples and tests.
+* Fixed multiple documentation issues, including a much better landing page
+  in the Doxygen documentation.
+
 ### v0.2.0 - 2018-08
 
 * First Beta release.

google/cloud/storage/README.md

@@ -20,6 +20,20 @@ the reference guide includes a quick start guide.
 
 ## Release Notes
 
+### 2018-11
+
+* Automatically compute MD5 hashes and CRC32C checksums when objects are
+  uploaded and downloaded. Any hash or checksum mismatched results in an
+  exception. Applications can MD5 hashes, CRC32C checksums or both on any
+  request.
+* Parse Bucket lock and retention policy attributes in object and bucket
+  metadata.
+* Add APIs to upload and download files with a single function call.
+* Improved the error messages generated when the credentials file is missing
+  or has invalid contents.
+* Jason Zaman contributed improvements and fixes to support soversion numbers
+  with CMake.
+
 ### 2018-09
 
 * The library implements all the APIs in the service, including: