2009-11-04 Version 1.0.3 (cbrown)
  + Fixed dependency of R-2.9.0

2009-10-14 (cbrown)
  + show.R
    - Handled cases where values are not supported by "format".  These are collapsed as character

2009-10-11 (cbrown) Version 1.0.2
  + revert previous change allowing [[(hash) to accept multiple keys


2009-10-09 (cbrown) Version 1.0.1  ( not released on CRAN )
  + [[(hash) 
    support for multiple supplied keys also passes ... to simplify
  + now properly inherits from environment
  + requires R>=2.9.0

2009-09-30 (cbrown)
  + validate.key rename make.keys
    - This is more R-ish and more like the make.names function.

2009-09-28 (cbrown)
  + R/hash.R: 
    - Fixed format of hash accessors.  Now hashes can contain hashes.
    - Deprecated use of [[ with multipe keys.

  + R/show.R: Now aliases format 
  + R/format.R: added
  + R/zzz.R: added graphical Open Data Logo
  + R/print.R: added


2009-09-04 (cbrown)
  - R/zzz.R: added Open Data message

2009-09-04 Version 0.40 (cbrown)
  - R/get.R: Added drop to reduce to lowest dimension by default.
  + R/invert.R: 
    + invert method added.
	+ inverted.hash function added.
	

