Install golangci-lint and go-critic

Author: Tobi Fuhrimann

Dockerfile

@@ -2,4 +2,6 @@ FROM golang:latest
 
 RUN curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
 RUN go get -u github.com/alecthomas/gometalinter && gometalinter --install
+RUN go get -u github.com/golangci/golangci-lint/cmd/golangci-lint
+RUN go get -u github.com/go-critic/go-critic/...
 RUN go get -u github.com/frapposelli/wwhrd