Changelog
==========

0.01_04 27 Dec 2003
  - Aah, bad bad. The DateTime object returned from rata_die() was set
    to a floating time zone. Yew. Now rata_die() is always in UTC
  - Introduce truncate_to_midday()

0.01_03 23 Dec 2003
  - Try memoizing some of this stuff...

0.01_02 19 Dec 2003
  - Add some tests

0.01_01 09 Dec 2003
  - Initial release
