Set maxLimit as default value for limit param

Set maxLimit as default value for the limit parameter in the /objects endpoint.

lib/routes/listobjects.go

@@ -50,10 +50,15 @@ func ListObjects(w http.ResponseWriter, r *http.Request) {
 
 	// Determine offset, limit and filter params
 	query := r.URL.Query()
+	var limit int
 	l := query.Get("limit")
-	limit, err := strconv.Atoi(l)
-	if err != nil || limit < 0 {
-		panic(apierrors.InvalidOffsetOrLimit)
+	if l == "" {
+		limit = maxLimit
+	} else {
+		limit, err := strconv.Atoi(l)
+		if err != nil || limit < 0 {
+			panic(apierrors.InvalidOffsetOrLimit)
+		}
 	}
 	if limit > maxLimit {
 		panic(apierrors.LimitTooLarge)