Set binmode for protoc-gen-ruby STDIN and STDOUT
Set binmode for protoc-gen-ruby STDIN and STDOUT

This fixes #320

ruby-protobuf/protobuf,lookout/protobuffy,localshred/protobuf,lookout/protobuffy,quixoten/protobuf,localshred/protobuf,brianstien/protobuf,brianstien/protobuf,quixoten/protobuf,ruby-protobuf/protobuf