[protobuf] protoc for Gophers, support `go get`

I create a Go warp for protoc app: https://github.com/chai2010/protoc Install protoc is simple: go get github.com/chai2010/protoc PS: Go1.4 for windows donot support statick link with C++. Need install Go1.5+ for windows. -- https://github.com/golang-china https://github.com/chai2010 -- You

Re: [protobuf] Re: How to check empty message object

and these hazzers logics have to go away. Google says, we will continue to support proto2 for a long time. True, but it also means that if we ever want to use proto3 features (which we do), then we have to trade away presence logic for primitive fields. This is an unfortunate