Version 0.4-1 (28 October 2009):
- added algorithm = "optimal" option to block()
- added optfactor argument to block()
- updated manual reference and maintainer information 
- made minor manual edits, such as adding appropriate \dQuote{}'s

Version 0.3 (25 April 2009):
- added weight argument to block()
- updated maintainer information
- added changelog