Transpile three.module.js using babel as it starts migration to ES6

Author: NataliaDSmirnova

rollup.config.js

@@ -6,6 +6,7 @@ import rollupPluginReplace from 'rollup-plugin-replace';
 import rollupPluginNodeResolve from 'rollup-plugin-node-resolve';
 import rollupPluginString from 'rollup-plugin-string';
 
+import path from 'path';
 import version from './tools/version';
 import packageJson from './package.json';
 
@@ -51,11 +52,12 @@ export default {
     rollupPluginBabel({
       runtimeHelpers: true,
       exclude: [
-        './node_modules/**',
+        /node_modules[\\/](?!three)/,
         './vendor/js/**',
         './src/utils/SelectionParser',
         './src/utils/MiewCLIParser.js',
       ],
+      extends: path.join(__dirname, '/.babelrc'),
     }),
 
   ],

webpack.config.babel.js

@@ -22,8 +22,13 @@ const configure = (prod) => ({
   module: {
     rules: [{
       test: /\.js$/,
-      exclude: /(node_modules|vendor)/,
-      use: ['babel-loader'],
+      exclude: /(node_modules[\\/](?!three))|vendor/,
+      use: {
+        loader: 'babel-loader',
+        options: {
+          extends: path.join(__dirname, '/.babelrc'),
+        },
+      },
     }, {
       test: /\.[sp]?css$/,
       use: [