fix(package): update raw-loader to version 4.0.0

Closes #233

Author: greenkeeper[bot]

package.json

@@ -76,7 +76,7 @@
     "phunctional": "0.2.1",
     "pify": "4.0.1",
     "postcss-loader": "3.0.0",
-    "raw-loader": "1.0.0",
+    "raw-loader": "4.0.0",
     "replace-in-file": "3.4.2",
     "script-ext-html-webpack-plugin": "2.1.4",
     "update-notifier": "2.5.0",