Version 0.9.9.01
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Bug Fixes
   
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NEW FEATURES
   o New 'as.mondate' function for coercing R objects to a mondate
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Changes

   o Reverted any S4 method better implemented as S3 to an S3 version. 
	In particular, 'format' and 'unique' enable 'aggregate' to work
	with a mondate object specified in 'by' argument
   o Removed deprecated 'displayFormat' argument from as.character.mondate method
   o Clarified some of the documentation
   

