Imports github.com/codegangsta/negroni github.com/gorilla/mux github.com/sontags/env github.com/unrolled/render gopkg.in/yaml.v2 github.com/tatsushid/go-fastping github.com/rs/cors github.com/sontags/logger Standard library imports bytes compress/gzip encoding/json errors fmt io io/ioutil log math/rand net net/http os path/filepath strconv strings sync time