renamed option showNavigationIcons to navigationButtons

examples/network/20_navigation.html

@@ -104,7 +104,7 @@
         edges: edges
       };
       var options = {
-        interaction:{showNavigationIcons: true},
+        interaction:{navigationButtons: true},
       };
       network = new vis.Network(container, data, options);
 

lib/network/modules/InteractionHandler.js

@@ -39,7 +39,7 @@ class InteractionHandler {
       dragView: true,
       zoomView: true,
       hoverEnabled: false,
-      showNavigationIcons: false,
+      navigationButtons: false,
       tooltip: {
         delay: 300,
         fontColor: '#000000',

lib/network/modules/components/NavigationHandler.js

@@ -31,7 +31,7 @@ class NavigationHandler {
   }
 
   create() {
-    if (this.options.showNavigationIcons === true) {
+    if (this.options.navigationButtons === true) {
       if (this.iconsCreated === false) {
         this.loadNavigationElements();
       }