Changes in version 3.0 (released August 2017)

Changes in version 2.8 (released August 2016)

Changes in version 2.7 (released May 2015)

Changes in version 2.6 (released December 2013)

Changes in version 2.5 (released June 2013)

Changes in version 2.4 (released June 2012)

Changes in version 2.3 (released November 2011)

Changes in version 2.2 (released November 2010)

Changes in version 2.1 (released September 2009)

Changes in version 2.0 (released December 2008)

Changes in version 1.4 (released May 2008)

Changes in version 1.3 (released November 2007)

Changes in version 1.2 (released April 2007)

Changes in version 1.1 (released November 2006)

Changes in version 1.0 (released June 2006)

Changes in version 0.95 (released January 2006)

Changes in version 0.91 (released October 2005)

Changes in version 0.9 (released October 2005)

Changes in version 0.2 (released July 2005)

Initial version 0.1 released July 2005