2004-04-06 Hironobu SUZUKI * --mew mode was added for Mew 2004-03-30 Hironobu SUZUKI * Version 2.1 * Add --keyserver option. * Error handling when "open(uri)' is failed. 2004-03-19 Hironobu SUZUKI * Version 2.0 * Command "wget" was removed and open-uri library has been used in rpk.rb code. * Ruby 1.8.1 compliant