make Bytes behave the same in Ruby 1.9 and 1.8
make Bytes behave the same in Ruby 1.9 and 1.8

git-svn-id: 39975eec7bf309a480de898e4a35dc0e7fb92211@49 86bd92fe-7125-43df-b379-c80660b36084

jgoizueta/float-formats,jgoizueta/float-formats