BigQuery Cannot specify to use Standard SQL instead of Legacy SQL.

http://googlecloudplatform.github.io/gcloud-java/0.2.6/apidocs/com/google/cloud/bigquery/QueryRequest.Builder.html

I want to be able to set useLegacySql to false here: https://cloud.google.com/bigquery/docs/reference/v2/jobs/query#request-body

Also an issue in Python: https://github.com/GoogleCloudPlatform/gcloud-python/issues/2053
