Support timer in notifications too

CHANGELOG.md

@@ -19,6 +19,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 - Added option to split multiple day events in calendar to separate numbered events
 - Slovakian translation
 - Alerts now can contain Font Awesome icons
+- Notifications display time can be set in request
 
 ### Updated
 - Bumped the Electron dependency to v3.0.13 to support the most recent Raspbian. [#1500](https://github.com/MichMich/MagicMirror/issues/1500)

modules/default/alert/README.md

@@ -43,10 +43,11 @@ self.sendNotification("SHOW_ALERT", {});
 ```
 
 ### Notification params
-| Option    | Description
-| --------- | -----------
-| `title`   | The title of the notification. <br><br> **Possible values:** `text` or `html`
-| `message`	| The message of the notification. <br><br> **Possible values:** `text` or `html`
+| Option             | Description
+| ------------------ | -----------
+| `title`            | The title of the notification. <br><br> **Possible values:** `text` or `html`
+| `message`	         | The message of the notification. <br><br> **Possible values:** `text` or `html`
+| `timer` (optional) | How long the notification should stay visible in ms. <br> If absent, the default `display_time` is used. <br> **Possible values:** `int` `float`
 
 
 ### Alert params

modules/default/alert/alert.js

@@ -51,7 +51,7 @@ Module.register("alert",{
 			message: msg,
 			layout: "growl",
 			effect: this.config.effect,
-			ttl: this.config.display_time
+			ttl: message.timer !== undefined ? message.timer : this.config.display_time
 		}).show();
 	},
 	show_alert: function(params, sender) {