Changed deprecated Digest::Digest.
Changed deprecated Digest::Digest.

Changed OpenSSL::Digest::Digest.new to OpenSSL::Digest.new
jjn2009/iruby,zalt50/iruby,SciRuby/iruby,hainesr/iruby,hainesr/iruby,zalt50/iruby,astroboxio/iruby,jjn2009/iruby,domitry/iruby,zalt50/iruby,SciRuby/iruby,mijoharas/iruby,zalt50/iruby,mijoharas/iruby,Rambatino/pi-ruby,domitry/iruby,astroboxio/iruby,Rambatino/pi-ruby,SciRuby/iruby,SciRuby/iruby