* Update google-cloud-cpp to 0.3.0.
A new release of google-cloud-cpp, with some improvements in packaging
that simplified the port files.
* [google-cloud-cpp] Fix OSX builds
* Initial port for google-cloud-cpp
* Use pre-release tag instead of commit sha1.
* Fix version.
* [google-cloud-cpp] Portfile improvements
* [google-cloud-cpp] Update to 0.1.0