Fix default etcd port

Fixes #508

integration/etcd_test.go

@@ -30,7 +30,7 @@ func (s *EtcdSuite) SetUpSuite(c *check.C) {
 	s.composeProject.Start(c)
 
 	etcd.Register()
-	url := s.composeProject.Container(c, "etcd").NetworkSettings.IPAddress + ":4001"
+	url := s.composeProject.Container(c, "etcd").NetworkSettings.IPAddress + ":2379"
 	kv, err := libkv.NewStore(
 		store.ETCD,
 		[]string{url},

integration/fixtures/etcd/simple.toml

@@ -8,9 +8,9 @@ logLevel = "DEBUG"
 
 
 [etcd]
-  endpoint = "{{.EtcdHost}}:4001"
+  endpoint = "{{.EtcdHost}}:2379"
   prefix = "/traefik"
   watch = true
 
 [web]
-  address = ":8081"
+  address = ":8081"