Release google-cloud-storage 1.7.1

* Fix bug in Bucket#create_file, Bucket#compose, File#copy and File#rotate in
  which user_project was not set on returned File object.
* Fix bug in Bucket::Acl#add_reader and Bucket::Acl#add_owner in which
  user_project was not passed in the API request.

Release google-cloud-storage 1.7.0

* Add Bucket#compose
* Update documentation

Release Pub/Sub 0.27.2

* Update documentation

Release Pub/Sub 0.27.1

* Add keepalive to gRPC connections.
* Update Subscriber Streaming Messages error handling
* Fix link in README

Release google-cloud-bigquery 0.29.0

Major release with many new features and several breaking changes.

* All queries use a new implementation, using a job and polling for results.
* The copy, load, extract methods have high-level and low-level versions.
* Added asynchronous row insertion.
* Support external data sources for both queries and table views.
* Added create-on-insert support for tables.
* Allow for customizing job IDs to aid in organizing jobs.

Release google-cloud 0.44.0

* BigQuery 0.29.0 release.

Release google-cloud-storage 1.6.0

Release Spanner 1.0.0

* Release 1.0

Release Resource Manager 0.27.0

* Update Google API Client dependency to 0.14.x.

Release DNS 0.26.0

* Update Google API Client dependency to 0.14.x.