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.
	

