Vision updates. (googleapis#4811)

  * Updated autogen surface.
  * New web detection features: title, full matching images, partial matching images, visually similar images, best guess labels.

Regenerate gapic for Speech API, remove deprecated manual layer (goog…

…leapis#4788)

  * Removes the deprecated manual layer.
  * Institutes new timeouts.
  * Removes gax.

Point OS Login to actual docs. (googleapis#4777)

Updated version number for 0.1.0 release (googleapis#4639)

Tag storage-1.7.0 release.

Release Error Reporting 0.29.0 (googleapis#4751)

Release Spanner v0.30.0 (googleapis#4732)

Release api_core v0.1.4 (googleapis#4730)

Tag bigquery-0.29.0 release.

Making `google-cloud-pubsub==0.30.1` release. (googleapis#4644)

* Making `google-cloud-pubsub==0.30.1` release.

* Also making `google-api-core==0.1.3` release.

* Dropping the Pub / Sub dependency on `grpcio`.