Release google-cloud-firestore 1.0.0 (googleapis#3666)

* Bump release level to GA.
* Update READMEs for Firestore GA
* Update synth.py for Firestore GA in doc link
* Update google-cloud-firestore dependency to ~> 1.0 in google-cloud.gemspec

Release google-cloud-dns 0.30.1 (googleapis#3667)

* Ensure use of a sufficiently recent REST client with the correct endpoint.

Release google-cloud-automl 0.1.0 (googleapis#3669)

* Initial release.

Release google-cloud-firestore 0.26.2 (googleapis#3661)

* Update #to_hash to #to_h for compatibility with google-protobuf >= 3.9.0

Release google-cloud-datastore 1.5.5 (googleapis#3660)

* Update #to_hash to #to_h for compatibility with google-protobuf >= 3.9.0

Release google-cloud-bigtable 0.4.3 (googleapis#3659)

* Update #to_hash to #to_h for compatibility with google-protobuf >= 3.9.0

Release google-cloud-storage 1.19.0 (googleapis#3653)

* Add Bucket#location_type
  * Remove :multi_regional and :regional from storage_class docs

Release google-cloud-talent 0.4.0 (googleapis#3645)

* Remove dead files related to resume service
* Add candidate_availability_filter and result_set_id
    * Add ProfileQuery#candidate_availability_filter (CandidateAvailabilityFilter)
    * Add result_set_id argument to ProfileServiceClient#search_profiles
    * Add SearchProfilesRequest#result_set_id
    * Add SearchProfilesResponse#result_set_id
    * Update documentation
* Support overriding service host and port.
* Update github link in the PostalAddress docs
* Add Batch Jobs
    * BREAKING CHANGE: Remove JobEventType::NOT_INTERESTED
    * Add JobServiceClient#batch_create_jobs
    * Add JobServiceClient#batch_update_jobs
    * Add JobOperationResult and BatchOperationMetadata
    * Add JobEvent#profile
    * Add SkillProficiencyLevel::UNSKILLED
* Update ProfileServiceClient#search_profiles documentation
* Replace incorrect return type HistogramQueryResult with SummarizedProfile

Release google-cloud-pubsub 0.37.1 (googleapis#3640)

* Add IAM GetPolicyOptions in the lower-level interface.
* Support overriding service host and port in the low-level interface.
* Fixed race in TimedUnaryBuffer.

Release google-cloud-bigquery 1.12.0 (googleapis#3650)

* Add BigQuery Model API
  * Add Model
  * Add StandardSql Field, DataType, StructType
  * Add Dataset#model and Dataset#models
* Correct Float value conversion
  * Ensure that NaN, Infinity, and -Infinity are converted correctly.