2011 Mar 11			1.4-0	Problem with MAC versions ????
2010 Feb 28			1.3-1	Fix in format.g required for summary of rpart.dist objects
2009 Dec 			1.3-0	Fix documentation to pass R checks & warnings
2006 Aug 23         1.2-1   Fixed cmds.diss to pass arguments to xdiss and gdist functions
2004 November 11    1.0-1   Modified extension of rpart