Imports
- github.com/felixge/httpsnoop
- github.com/gorilla/mux
- github.com/prometheus/client_golang/prometheus/promhttp
- github.com/sirupsen/logrus
- github.com/slok/go-http-metrics/metrics/prometheus
- github.com/slok/go-http-metrics/middleware
- github.com/slok/go-http-metrics/middleware/std