Switch from babel to buble

package.json

@@ -31,21 +31,15 @@
   "devDependencies": {
     "assets-webpack-plugin": "^3.5.0",
     "autoprefixer": "^6.5.1",
-    "babel-cli": "^6.18.0",
-    "babel-core": "^6.18.2",
-    "babel-eslint": "^7.1.0",
-    "babel-loader": "^6.2.7",
-    "babel-preset-es2015": "^6.18.0",
-    "babel-register": "^6.18.0",
-    "babel-runtime": "^6.18.0",
     "body-parser": "^1.15.2",
     "browser-sync": "^2.17.5",
+    "buble": "^0.14.2",
+    "buble-loader": "^0.3.1",
     "clean-webpack-plugin": "^0.1.13",
     "css-loader": "^0.25.0",
     "cssnano": "^3.8.0",
     "eslint": "^3.9.1",
     "eslint-config-airbnb": "^12.0.0",
-    "eslint-config-airbnb-es5": "^1.1.0",
     "eslint-loader": "^1.6.1",
     "eslint-plugin-import": "^2.0.1",
     "eslint-plugin-jsx-a11y": "^2.2.3",