bump to 3.4.0
bump to 3.4.0

localshred/protobuf,ruby-protobuf/protobuf,brianstien/protobuf,zanker/protobuf,film42/protobuf,quixoten/protobuf,lookout/protobuffy,localshred/protobuf,zanker/protobuf,lookout/protobuffy,ruby-protobuf/protobuf,film42/protobuf,brianstien/protobuf,quixoten/protobuf