support for actions in WatchedNotificationsManager

* use the proper argument for actions, which is in the weird format
  name0label0,name1,label1,...
* make invokeaction, close et al invokable from QML

libnotificationmanager/server_p.cpp

@@ -258,7 +258,7 @@ uint ServerPrivate::Notify(const QString &app_name, uint replaces_id, const QStr
             // we pass raw body data since this data goes through another sanitization
             // in WatchedNotificationsModel when notification object is created.
             notification.rawBody(),
-            notification.actionNames(),
+            actions,
             hints,
             notification.timeout()
         });

libnotificationmanager/watchednotificationsmodel.h

@@ -37,12 +37,12 @@ public:
     explicit WatchedNotificationsModel();
     ~WatchedNotificationsModel();
     
-    void expire(uint notificationId) override;
-    void close(uint notificationId) override;
+    Q_INVOKABLE void expire(uint notificationId) override;
+    Q_INVOKABLE void close(uint notificationId) override;
 
-    void invokeDefaultAction(uint notificationId) override;
-    void invokeAction(uint notificationId, const QString &actionName) override;
-    void reply(uint notificationId, const QString &text) override;
+    Q_INVOKABLE void invokeDefaultAction(uint notificationId) override;
+    Q_INVOKABLE void invokeAction(uint notificationId, const QString &actionName) override;
+    Q_INVOKABLE void reply(uint notificationId, const QString &text) override;
     bool valid();
 
 signals: