Version 1.5.2
Bugfix release
- Allow using oauth2client >= 1.5.0, < 4.0.0. (265)
- Fix project_id argument description. (257)
- Retry chunk uploaded on rate limit exceeded errors. (255)
- Obtain access token if necessary in BatchHttpRequest.execute(). (232)
- Warn when running tests using HttpMock without having a cache. (261)