refactor: migration Negroni from codegangsta to urfave

server/server.go

@@ -18,7 +18,6 @@ import (
 	"syscall"
 	"time"
 
-	"github.com/codegangsta/negroni"
 	"github.com/containous/mux"
 	"github.com/containous/traefik/cluster"
 	"github.com/containous/traefik/healthcheck"
@@ -29,6 +28,7 @@ import (
 	"github.com/containous/traefik/safe"
 	"github.com/containous/traefik/types"
 	"github.com/streamrail/concurrent-map"
+	"github.com/urfave/negroni"
 	"github.com/vulcand/oxy/cbreaker"
 	"github.com/vulcand/oxy/connlimit"
 	"github.com/vulcand/oxy/forward"

server/server_test.go

@@ -9,7 +9,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/codegangsta/negroni"
 	"github.com/containous/flaeg"
 	"github.com/containous/mux"
 	"github.com/containous/traefik/healthcheck"
@@ -19,6 +18,7 @@ import (
 	"github.com/davecgh/go-spew/spew"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"github.com/urfave/negroni"
 	"github.com/vulcand/oxy/roundrobin"
 )
 

server/web.go

@@ -8,7 +8,6 @@ import (
 	"net/http"
 	"runtime"
 
-	"github.com/codegangsta/negroni"
 	"github.com/containous/mux"
 	"github.com/containous/traefik/autogen"
 	"github.com/containous/traefik/log"
@@ -20,6 +19,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 	thoas_stats "github.com/thoas/stats"
 	"github.com/unrolled/render"
+	"github.com/urfave/negroni"
 )
 
 var (