Upgraded to babel v6

HISTORY.md

@@ -6,6 +6,7 @@ http://visjs.org
 
 ### Graph2d
 
+- Fixed #1455: allow vertical panning of the web page on touch devices.
 - Fixed #1692: Error when y-axis values are equal.
 
 ### Timeline

gulpfile.js

@@ -45,7 +45,15 @@ var webpackConfig = {
   },
   module: {
     loaders: [
-      { test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader'}
+      {
+        test: /\.js$/,
+        exclude: /node_modules/,
+        loader: 'babel',
+        query: {
+          cacheDirectory: true,
+          presets: ['es2015']
+        }
+      }
     ],
 
     // exclude requires of moment.js language files

lib/network/Network.js

@@ -2,16 +2,15 @@
 require('./shapes');
 
 let Emitter = require('emitter-component');
-let Hammer = require('../module/hammer');
 let util = require('../util');
 let DataSet = require('../DataSet');
 let DataView = require('../DataView');
 let dotparser = require('./dotparser');
 let gephiParser = require('./gephiParser');
-let Images = require('./Images');
 let Activator = require('../shared/Activator');
 let locales = require('./locales');
 
+import  Images              from './Images';
 import  Groups              from './modules/Groups';
 import  NodesHandler        from './modules/NodesHandler';
 import  EdgesHandler        from './modules/EdgesHandler';

lib/network/modules/SelectionHandler.js

@@ -1,5 +1,6 @@
-let Node = require("./components/Node");
-let Edge = require("./components/Edge");
+import Node from './components/Node';
+import Edge from './components/Edge';
+
 let util = require('../../util');
 
 class SelectionHandler {

package.json

@@ -30,25 +30,26 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "emitter-component": "^1.1.1",
-    "hammerjs": "^2.0.6",
-    "keycharm": "^0.2.0",
-    "moment": "^2.12.0",
-    "propagating-hammerjs": "^1.4.6",
-    "uuid": "^2.0.1",
-    "babel": "^5.1.11",
-    "babel-loader": "^5.0.0",
+    "babel-core": "^6.6.5",
+    "babel-loader": "^6.2.4",
+    "babel-preset-es2015": "^6.6.0",
     "babelify": "^7.2.0",
     "clean-css": "^3.4.10",
+    "emitter-component": "^1.1.1",
     "gulp": "^3.9.1",
     "gulp-concat": "^2.6.0",
     "gulp-minify-css": "^1.2.4",
     "gulp-rename": "^1.2.2",
     "gulp-util": "^3.0.7",
+    "hammerjs": "^2.0.6",
+    "keycharm": "^0.2.0",
     "merge-stream": "^1.0.0",
     "mocha": "^2.4.5",
+    "moment": "^2.12.0",
+    "propagating-hammerjs": "^1.4.6",
     "rimraf": "^2.5.2",
     "uglify-js": "^2.6.2",
+    "uuid": "^2.0.1",
     "webpack": "^1.12.14",
     "yargs": "^4.2.0"
   }