Oauth2client-master

* Added support for the
[Google Application Default Credentials](https://developers.google.com/accounts/docs/application-default-credentials)
for more information (thanks orestica).
* Added support for OAuth2 for devices (3, thanks sde-melo).
* The minimum required Python version is now 2.6.
* The `anyjson` submodule has been removed.

* Better exception handling around missing crypto libraries (56).
* Improve error messages in `AccessTokenRefreshError` (53, thanks
erickoledadevrel).
* Drop `uritemplate` as a dependency.
* Handle X509 certs with PyCrypto (51, thanks liujin-google).
* Handle additional failure types on OSX (32, thanks simoncadman).
* Better unicode handling with PKCS12 passwords (31, thanks jterrace).
* Better retry handling with bad server replies on refresh (29, thanks
kaste).
* Better logging for missing `refresh_token` in server replies (21).
* Support `login_hint` (18, thanks jay0lee).
* Better overwrite options in `django_orm.Storage`. (2, thanks lraccomando).

* The use of the `gflags` library is now deprecated, and is no longer a
dependency. If you are still using the `oauth2client.tools.run()` function
then include `python-gflags` as a dependency of your application or switch to
`oauth2client.tools.run_flow`.
* Samples have been updated to use the new `apiclient.sample_tools`, and no
longer use `gflags`.
* Added support for the experimental Object Change Notification, as found in
the Cloud Storage API.
* The oauth2client App Engine decorators are now threadsafe.

* Use the following redirects feature of httplib2 where it returns the
ultimate URL after a series of redirects to avoid multiple hops for every
resumable media upload request.
* Updated AdSense Management API samples to V1.3
* Add option to automatically retry requests.
* Ability to list registered keys in `multistore_file`.
* User-agent must contain `(gzip)`.
* The `method` parameter for `httplib2` is not positional. This would cause
spurious warnings in the logging.
* Making OAuth2Decorator more extensible. Fixes Issue 256.
* Update AdExchange Buyer API examples to version v1.2.

* Add PEM support to `SignedJWTAssertionCredentials` (used to only support
PKCS12 formatted keys). Note that if you use PEM formatted keys you can use
PyCrypto 2.6 or later instead of OpenSSL.

* Allow deserialized discovery docs to be passed to `build_from_document()`.

* Make `ResumableUploadError` derive from `HttpError`.
* Many changes to move all the closures in `apiclient.discovery` into real
classes and objects.
* Make `from_json` behavior inheritable.
* Expose the full token response in `OAuth2Client` and `OAuth2Decorator`.
* Handle reasons that are None.
* Added support for NDB based storing of oauth2client objects.
* Update `grant_type` for `AssertionCredentials`.
* Adding a `.revoke()` to Credentials. Closes issue 98.
* Modify `oauth2client.multistore_file` to store and retrieve credentials
using an arbitrary key.
* Don't accept `403` challenges by default for auth challenges.
* Set `httplib2.RETRIES` to 1.
* Consolidate handling of scopes.
* Upgrade to httplib2 version 0.8.
* Allow setting the `response_type` in `OAuth2WebServerFlow`.
* Ensure that `dataWrapper` feature is checked before using the `data` value.
* HMAC verification does not use a constant time algorithm.

* Changes to the code for running tests and building releases.

* In samples and oauth2 decorator, escape untrusted content before displaying it.
* Do not allow credentials files to be symlinks.
* Add XSRF protection to oauth2decorator callback state.
* Handle uploading chunked media by stream.
* Handle passing streams directly to httplib2.
* Add support for Google Compute Engine service accounts.
* Flows no longer need to be saved between uses.
* Change GET to POST if URI is too long. Fixes issue 96.
* Add a `keyring`-based `Storage`.
* More robust picking up JSON error responses.
* Make batch errors align with normal errors.
* Add a Google Compute sample.
* Token refresh to work with old GData API.
* Loading of `client_secrets` JSON file backed by a cache.
* Switch to new discovery path parameters.
* Add support for `additionalProperties` when printing schema'd objects.
* [Fix media upload parameter names.](http://codereview.appspot.com/6374062/)
* oauth2client support for URL-encoded format of exchange token response (e.g.
Facebook)
* Build cleaner and easier to read docs for dynamic surfaces.

* Parameter values of None should be treated as missing. Fixes issue 144.
* Distribute the samples separately from the library source. Fixes issue 155.
* Move all remaining samples over to `client_secrets.json`. Fixes issue 156.
* Make `locked_file.py` understand win32file primitives for better
awesomeness.