Add support for notes (#860)

* Add support for notes

* Ensure consistency with notes from ready payload

* Add getter method for users

* Minor tweaks

* Update warning messages

* More minor fixes

src/client/rest/RESTMethods.js

@@ -616,6 +616,11 @@ class RESTMethods {
       new ClientOAuth2Application(this.rest.client, app)
     );
   }
+
+  setNote(user, note) {
+    return this.rest.makeRequest('put', Constants.Endpoints.note(user.id), true, { note })
+      .then(() => user);
+  }
 }
 
 module.exports = RESTMethods;