chore(package): update babel-loader to version 8.0.1

Closes #80

Author: greenkeeper[bot]

package.json

@@ -32,7 +32,7 @@
   "devDependencies": {
     "babel-cli": "^6.26.0",
     "babel-eslint": "^8.2.3",
-    "babel-loader": "^7.1.4",
+    "babel-loader": "^8.0.1",
     "babel-plugin-istanbul": "^4.1.4",
     "babel-plugin-transform-runtime": "^6.23.0",
     "babel-preset-env": "^1.6.1",