January 25, 2013 - Version 0.005
  * Hostgroup class:
    * name() accessor
    * hosts() accessor
  * Template support from Chris Larsen
  * Proxy support from Chris Larsen
  * Item class:
    * history() accessor
  * User support
  * UserGroup support

February 23, 2012 - Version 0.004
  * Trigger support
  * Action support
  * Documented Host and Item name() methods

July 11, 2011 - Version 0.003
  * Mostly completed a distribution-wide rewrite
  * Broke backwards compatibility
  * More unit tests

March 25, 2011 - Version 0.002
  * More PBP-compliance, kwalitee
  * Fixed bugs
  * Decided to write a CHANGES file

March 07, 2011 - Version 0.001
  * Initial release (internal use).