Refactor components

src/dom_components/model/ComponentMap.js

@@ -1,9 +1,10 @@
-var Component = require('./ComponentImage');
-var OComponent = require('./Component');
+const Component = require('./ComponentImage');
+const OComponent = require('./Component');
 
 module.exports = Component.extend(
   {
-    defaults: _.extend({}, Component.prototype.defaults, {
+    defaults: {
+      ...Component.prototype.defaults,
       type: 'map',
       void: 0,
       mapUrl: 'https://maps.google.com/maps',
@@ -39,7 +40,7 @@ module.exports = Component.extend(
           changeProp: 1
         }
       ]
-    }),
+    },
 
     initialize(o, opt) {
       if (this.get('src')) this.parseFromSrc();

src/dom_components/model/ComponentScript.js

@@ -1,13 +1,14 @@
-var Component = require('./Component');
+const Component = require('./Component');
 
 module.exports = Component.extend(
   {
-    defaults: _.extend({}, Component.prototype.defaults, {
+    defaults: {
+      ...Component.prototype.defaults,
       type: 'script',
       droppable: false,
       draggable: false,
       layerable: false
-    })
+    }
   },
   {
     isComponent(el) {

src/dom_components/model/ComponentSvg.js

@@ -1,4 +1,4 @@
-var Component = require('./Component');
+const Component = require('./Component');
 
 module.exports = Component.extend(
   {

src/dom_components/model/ComponentTextNode.js

@@ -1,11 +1,12 @@
-var Component = require('./Component');
+const Component = require('./Component');
 
 module.exports = Component.extend(
   {
-    defaults: _.extend({}, Component.prototype.defaults, {
+    defaults: {
+      ...Component.prototype.defaults,
       droppable: false,
       editable: true
-    }),
+    },
 
     toHTML() {
       return this.get('content');

src/dom_components/model/Toolbar.js

@@ -1,4 +1,4 @@
-var Backbone = require('backbone');
-var ToolbarButton = require('./ToolbarButton');
+const Backbone = require('backbone');
+const ToolbarButton = require('./ToolbarButton');
 
 module.exports = Backbone.Collection.extend({ model: ToolbarButton });

src/dom_components/model/ToolbarButton.js

@@ -1,4 +1,4 @@
-var Backbone = require('backbone');
+const Backbone = require('backbone');
 
 module.exports = Backbone.Model.extend({
   defaults: {