Make actions private in panels and views

Change-Id: I3f2c68c6e51525bbba96c24c4fddf9f9498333b1
diff --git a/dev/js/src/panel/query.js b/dev/js/src/panel/query.js
index d2bf80f..a4658b0 100644
--- a/dev/js/src/panel/query.js
+++ b/dev/js/src/panel/query.js
@@ -22,7 +22,7 @@
     // Initialize panel
     _init : function (opened) {
       this._opened = opened;
-      const a = this.actions;
+      const a = this.actions();
       
       // If plugins are enabled, add all buttons for the query panel
       if (KorAP.Plugin) {