Googleads

* Added support for v201502 of the AdWords Client Library.
* Removed CampaignAdExtensionService (from v201502).
* Added AccountLabelService (to v201502)
* Added hard feed types examples, moved to new "extensions" examples.
* Added example for shared sets.
* Minor fixes to reporting examples.
* Updated some existing samples for new API version.
* DFP clients now require you to set an application name.

* Added new example for migrating to Upgraded URLS.
* Updated examples to reference final URLs.

* Added support for v201502 for the DoubleClick for Publishers Client Library.
* Removing support for v201311, v201308, and v201306.
* Removed examples for v201403.
* Updated ForecastService examples.
* Added PackageService, ProductPackageService, and ProductPackageItemService.
* Fixed comments and settings for targetAll in add_ad_groups.py examples.

* Push with updated PyDocs.

* Three new dependencies have been added: httplib2, oauth2client, and pysocks.
* One dependency has been removed: oauthlib
* BREAKING CHANGE: Python3 versions < 3.3 are no longer supported.
* BREAKING CHANGE: The https_proxy argument for the GoogleRefreshTokenClient has
been deprecated. It has been replaced by proxy_info, which is an optional
argument taking an httplib2.ProxyInfo instance.
* PYTHON2 ONLY: You may now authorize with Service Accounts using the new
GoogleServiceAccountClient. As of this release, it will only work with
Python2.
* Added new Service Account authorization examples for AdWords, DFA, and DFP.
* The googleads.yaml file has been refactored to reflect the changes to proxy
support.
* WARNING: As of this release, you must set disable_ssl_certificate_validation
to False when using Python3.
* Added new examples for DFP Sales Manager: PremiumRateService, BaseRateService,
ExchangeRateService, RateCardService, WorkflowRequestService, ProductService,
ProductTemplateService.

* Removed v201402 support.
* The return_money_in_micros argument has been removed from the AdWords
ReportDownloader.
* Fixed issue 33: Bad output generated by get_keyword_ideas.py.33
* Fixed issue 37: https_proxy wouldn't work for AdWords ReportDownloader.
* Fixed issue 39: AdWords ReportDownloader couldn't download report via
BytesIO.
* Fixed issue 41: estimate_keyword_traffic couldn't handle case where
clicksPerDay or impressionsPerDay were 0.
* Accepted Pull Request 45: Added manual refresh option to
GoogleRefreshTokenClient.