* 0.2.1
 - Fix issue that caused an empty session to not be able to be updated.

* 0.2.0
 - Intent handlers now receive their slots as kwargs.
 - Added support for card creation.
 - Moved session handling to request object, to more closely resemble base Django.

* 0.1.2
 - Better default behavior for session_ended.
 - Condensed Response classes into a single EchoResponse class.

* 0.1.1
 - Refactored response classes.
 - Created full test suite.

* 0.1.0
 - Initial release.
