[jhc] darcs patch: add 0.6.0 release to ditz (and 3 more)

Fri Mar 27 01:23:47 PDT 2009 John Meacham * add 0.6.0 release to ditz Fri Mar 27 01:33:20 PDT 2009 John Meacham * add bug tracker link to web page Fri Mar 27 03:14:11 PDT 2009 John Meacham * fix bug where types of slots for unpacked polymorphic components wern't being properly specialized Fri Mar 27 03:21:56 PDT 2009 John Meacham * update bugs