add codereview config to the repo
add codereview config to the repo

R=rsc
CC=golang-dev
http://codereview.appspot.com/2012049

daemonl/protobuf,golang/protobuf,ekle/protoc-gen-goweb,aoeu/protobuf,jmptrader/protobuf-1,skyportsystems/go-protobuf,jeremyletang/protobuf,trdata/protobuf,trdata/protobuf,tamird/protobuf-2,kung-foo/protobuf,linkedin-inc/protobuf,mwitkow-io/protobuf,alskjstl/protobuf,velocity-toolkit/protobuf-1,francoishill/protobuf,tamird/protobuf-2,fuchsia-mirror/third_party-github.com-golang-protobuf,adnaan/protobuf,ekle/protoc-gen-goweb_test,jrbarron/protobuf,golang/protobuf,skyportsystems/go-protobuf,qinlodestar/protobuf,csuideal/protobuf,hailocab/protobuf,ArtemTeleshev/go-protobuf,fuchsia-mirror/third_party-github.com-golang-protobuf,eduardiazf/protobuf