Imports
- github.com/didi/nightingale/src/modules/tsdb/http/middleware
- github.com/gorilla/mux
- github.com/codegangsta/negroni
- github.com/didi/nightingale/src/modules/tsdb/http/render
- github.com/didi/nightingale/src/modules/tsdb/http/routes
- github.com/didi/nightingale/src/toolkits/address
- github.com/toolkits/pkg/logger