Merge pull request 'add-opts-not-save-notification' (#2) from add-opts-not-save-notification into master

Reviewed-on: #2

const.go

@@ -0,0 +1,7 @@
+package notification
+
+const (
+	SortOrderDesc = "-order"
+	SortOrderAsc  = "order"
+	SortDefault   = "-lastPushAt"
+)

model.go

@@ -18,6 +18,9 @@ type PushRequest struct {
 	Category         string   `json:"category,omitempty"`
 	Sound            *Sound   `json:"sound,omitempty"`
 	Link             string   `json:"link"`         // for webpush
+	Order            int      `json:"order"`        // for sort
+	DisplayUntil     int64    `json:"displayUntil"` // time.Unix
+	SaveNotification bool     `json:"saveNotification"`
 }
 
 // Sound ...
@@ -45,6 +48,7 @@ type Query struct {
 	Status   string `json:"status"`
 	Page     int64  `json:"page,omitempty"`
 	Limit    int64  `json:"limit,omitempty"`
+	Sort     string `json:"sort,omitempty"` // SortDefault, SortOrderDesc, SortOrderAsc
 }
 
 type query struct {

notification.go

@@ -9,7 +9,7 @@ import (
 )
 
 // version specify current version of client
-const version = "1.0.3"
+const version = "1.0.4"
 
 const (
 	SendByTopic = "topic"