remove es2015

package.json

@@ -22,7 +22,7 @@
     "lint": "eslint src/*js*",
     "lintfix": "eslint src/*js* --fix",
     "clean": "rm -f PivotTable.js* PivotTableUI.js* PlotlyRenderers.js* TableRenderers.js* Utilities.js* pivottable.css",
-    "doPublish": "npm run clean && cp src/pivottable.css . && babel src --out-dir=. --source-maps --presets=es2015,react --plugins babel-plugin-add-module-exports && npm publish",
+    "doPublish": "npm run clean && cp src/pivottable.css . && babel src --out-dir=. --source-maps --presets=env,react --plugins babel-plugin-add-module-exports && npm publish",
     "postpublish": "npm run clean",
     "deploy": "webpack -p && mv bundle.js examples && cd examples && git init && git add . && git commit -m build && git push --force [email protected]:plotly/react-pivottable.git master:gh-pages && rm -rf .git bundle.js"
   },
@@ -57,7 +57,6 @@
     "babel-loader": "^7.1.2",
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-preset-env": "^1.6.1",
-    "babel-preset-es2015": "^6.24.1",
     "babel-preset-react": "^6.24.1",
     "css-loader": "^0.28.7",
     "eslint": "^4.5.0",

webpack.config.js

@@ -16,7 +16,7 @@ module.exports = {
         use: {
           loader: 'babel-loader',
           options: {
-            "presets" : [["es2015", {"modules": false}], "react"],
+            "presets" : [["env", {"modules": false}], "react"],
             "plugins": ["react-hot-loader/babel"]
           }
         },