• major streamlining of interface (hence, major version change)
  -- coordinated with Gisle Aas and J. Duque
  -- goal is to produce a single SHA module
  -- adheres to OO and functional styles of Digest::
  -- greatly reduces the number of interface functions
  -- old functions still supported
  -- use Digest::SHA ':legacy'
  -- will be deprecated in near future
  
• rewrote all test scripts to match new interface
  -- very easy to modify all 281 tests
  -- old interface maps cleanly to new one