BigQuery Data Transfer 0.1.0 Release (googleapis#4598)

Kubernetes Engine 0.1.0 (googleapis#4592)

Pub / sub release 0.29.4. (googleapis#4566)

Making new Pub / Sub and API core releases. (googleapis#4559)

Making new Pub / Sub and API core releases. (googleapis#4559)

Preparing release 0.17.0 of trace (googleapis#4538)

Bump Vision to 0.29.0 (googleapis#4506)

Preparing release 0.29.2 of Pub / Sub. (googleapis#4500)

Video bump (googleapis#4481)

Video bump (googleapis#4481)