0.04 Thursday October 09 16:06:20 PDT 2008:
 - Added substitution handling
 - Added default option

0.03 Tuesday April 29 11:49:21 PDT 2008:
 - Fixed issue with install_accessor ignoring given package name

0.02 Monday April 28 19:51:17 PDT 2008: 
 - Added env_lookup support
 - Added install_accessor for Caelum

0.01 Wednesday April 23 14:19:05 PDT 2008:
 - Initial release
