Changes
=======
0.00003 - 17 Mar 2009
* Add FastMmap backend (Taro Funaki)
* Implement get_multi
0.00002 - 16 Jan 2009
* Refactor backend so that it doesn't hold wasteful attributes.
* Add CHI backend.
* Attribute key_generator is now called cache_key_generator
* Much better test coverage.
0.00001 - 16 Oct 2008
* Initial release