Merge pull request #1243 from tseaver/1242-bigquery-usage_docs_lag_api_changes

Catch BQ usage docs up to client API speling change.

Author: tseaver

docs/bigquery-usage.rst

@@ -282,7 +282,7 @@ Run a query which can be expected to complete within bounded time:
  >>> query = """\
  SELECT count(*) AS age_count FROM dataset_name.person_ages
  """
- >>> results = client.query(query, timeout_ms=1000)
+ >>> results = client.run_sync_query(query, timeout_ms=1000)
  >>> retry_count = 100
  >>> while retry_count > 0 and not results.job_complete:
  ... retry_count -= 1
@@ -314,9 +314,9 @@ Background a query, loading the results into a table:
  """
  >>> dataset = client.dataset('dataset_name')
  >>> table = dataset.table(name='person_ages')
- >>> job = client.query_async(query,
- ... destination=table,
- ... write_disposition='truncate')
+ >>> job = client.run_async_query(query,
+ ...  destination=table,
+ ...  write_disposition='truncate')
  >>> job.job_id
  'e3344fba-09df-4ae0-8337-fddee34b3840'
  >>> job.type