chore(package): update babel-loader to version 7.1.5

Closes #300

Author: greenkeeper[bot]

package.json

@@ -65,7 +65,7 @@
   },
   "devDependencies": {
     "babel-core": "^6.23.1",
-    "babel-loader": "7.1.4",
+    "babel-loader": "7.1.5",
     "babel-plugin-react-transform": "^3.0.0",
     "babel-preset-es2015": "^6.9.0",
     "babel-preset-react": "^6.11.1",