Python Client Library Updated (v4.0.0)

[AdWords API Advisor]

An updated version of Python client library is available from
http://code.google.com/p/google-api-adwords-python-lib/. This is a
major release and includes the following changes and updates*:

- Updated Errors.ApiError to better handle error details (thanks
Don)
- Fixed empty list of excludedCities issue, when using v13

* For a full list see http://code.google.com/p/google-api-adwords-python-lib/source/browse/trunk/ChangeLog

Thanks to everyone who reported bugs and feature requests at
http://code.google.com/p/google-api-adwords-python-lib/issues/list.

--Stan Grinberg