Merge pull request #399 from Max-Liu/master

repaired the wrong IP when using in localhost (Mac os x)

@@ -98,8 +98,10 @@ func (input *BeegoInput) IP() string {
 	}
 	ip := strings.Split(input.Request.RemoteAddr, ":")
 	if len(ip) > 0 {
+		if ip[0] != "["{
 			return ip[0]
 		}
+	}
 	return "127.0.0.1"
 }