version 3 of the protocol.
Support includes:
* Sending 'python' as the platform.
* The 'tags' option (on all constructors that support options).
* Updated authentication header.
Additionally, the following has changed:
* Configuring the client with an empty DSN value will disable sending of messages.
* All clients should now check ``Client.is_enabled()`` to verify if they should send data.
* ``Client.create_from_text`` and ``Client.create_from_exception`` have been removed.
* ``Client.message`` and ``Client.exception`` have been removed.
* The ``key`` setting has been removed.
* The ``DEBUG`` setting in Django no longer disables Raven.
* The ``register_signals`` option in RAVEN_CONFIG (Django) is no longer used.
* A new helper, ``Client.context()`` is now available for scoping options.
* ``Client.captureExceptions`` is now deprecated in favor of ``Client.context``.
* Credit card values will now be sanitized with the default processors.
* A new eventlet+http transport exists.
* A new threaded+http transport exists.
* PyPy is now supported.
* Django 1.5 should now be supported (experimental).
* Gevent 1.0 should now be supported (experimental).
* Python 2.5 is no longer supported.
* [Django] The ``skip_sentry`` attribute is no longer supported. A new option config option has replaced this: ``SENTRY_IGNORE_EXCEPTIONS``.