Changes in 0.3 (2015-12-11):
  * Merged in pull requests from Thomas G. for making the package compatible
  with python 3

Changes in 0.2 (2015-04-06):
  * Ported to Cython
  * Added new functions join_session_keyring, link, unlink, search, revoke

Changes in 0.1 (2009-07-24):
  * Initial release
