Merge pull request #11 from glours/fix_protobuff_setup_file

add protoc-gen-go and remove gogo install

scripts/setup/install-protobuf

@@ -63,5 +63,4 @@ rm -rf $PROTOBUF_DIR
 
 go get github.com/gogo/protobuf/proto
 go get github.com/gogo/protobuf/jsonpb
-go get github.com/gogo/protobuf/protoc-gen-gogo
-go get github.com/gogo/protobuf/gogoproto
+go get -u github.com/golang/protobuf/protoc-gen-go