Merge branch 'master' of https://github.com/pedroslopez/whatsapp-web.js

src/structures/Chat.js

@@ -50,6 +50,12 @@ class Chat extends Base {
          */
         this.timestamp = data.t;
 
+        /**
+         * Indicates if the Chat is archived
+         * @type {boolean}
+         */
+        this.archived = data.archive;
+
         return super._patch(data);
     }
 
@@ -82,6 +88,21 @@ class Chat extends Base {
             return window.WWebJS.sendDeleteChat(chatId);
         }, this.id._serialized);
     }
+
+    /**
+     * Archives this chat
+     */
+    async archive() {
+        return this.client.archiveChat(this.id._serialized);
+    }
+
+    /**
+     * un-archives this chat
+     */
+    async unarchive() {
+        return this.client.unarchiveChat(this.id._serialized);
+    }
+    
 }
 
 module.exports = Chat;