Version 0.4 - 2018-03-05
* Drop support for python 3.3 and add support for 3.6
* Use 2to3 for python3 support

Version 0.3 - 2017-11-28
* Ensure client is conected when droping the cache
* Allow fake serialization of tryton models

Version 0.2 - 2017-02-02
* Allow serialization of lxml Elements

Version 0.1 - 2016-11-28
* Initial release
