Fix JS error after merging PR

demo/assets/menu.js

@@ -14,7 +14,8 @@
     { text: 'Custom theme', href: 'custom-theme.html' },
     { text: 'Vuex Integration', href: 'vuex.html' },
     { text: 'Exporting', href: 'exporting.html' },
-    { text: 'Drag & Drop', href: 'dnd.html' }
+    { text: 'Drag & Drop', href: 'dnd.html' },
+    { text: 'Updating', href: 'updating.html' },
   ]
 
   function initMenu() {

demo/pages/updating.html

@@ -45,11 +45,11 @@
         ]
       }),
       mounted() {
-        this.$nextTick(() => {
-          this.$refs.tree.update('Item 1', node => {
-            return { text: 'New Item!' };
+        setTimeout(() => {
+          this.$refs.tree.updateData('Item 1', node => {
+            return { text: 'New Item!' }
           });
-        })
+        }, 1000)
       }
     })
   </script>

package.json

@@ -1,7 +1,7 @@
 {
   "name": "liquor-tree",
   "description": "A Vue.js tree component.",
-  "version": "0.2.69",
+  "version": "0.2.70",
   "author": "Kostiantyn <[email protected]>",
   "library": "LiquorTree",
   "homepage": "https://amsik.github.io/liquor-tree/",

src/lib/Node.js

@@ -82,11 +82,11 @@ export default class Node {
   }
 
   setData (data) {
-    this.data = Object.assign({}, this.data, data);
+    this.data = Object.assign({}, this.data, data)
 
-    this.$emit('data:changed', this.data);
+    this.$emit('data:changed', this.data)
 
-    return this.data;
+    return this.data
   }
 
   state (name, value) {

src/lib/Tree.js

@@ -695,11 +695,11 @@ export default class Tree {
   }
 
   updateData (criteria, callback) {
-    const nodes = this.find(criteria);
+    const nodes = this.find(criteria)
 
-    nodes.forEach(node => node.setData(callback(node)));
+    nodes.forEach(node => node.setData(callback(node)))
 
-    return nodes;
+    return nodes
   }
 
   getNodeById (id) {

src/mixins/TreeMixin.js

@@ -182,16 +182,12 @@ export default {
       return this.tree.find(criteria, true)
     },
 
-    update (criteria, callback) {
-      return this.tree.update(criteria, callback);
-    },
-
     expandAll () {
       return this.tree.expandAll()
     },
 
     updateData (criteria, callback) {
-      return this.tree.updateData(criteria, callback);
+      return this.tree.updateData(criteria, callback)
     },
 
     collapseAll () {