chore(package): update file-loader to version 5.0.1

Closes #57

Author: greenkeeper[bot]

package.json

@@ -56,7 +56,7 @@
 		"eslint-plugin-promise": "^3.7.0",
 		"eslint-plugin-react": "^7.7.0",
 		"eslint-plugin-standard": "^3.1.0",
-		"file-loader": "^1.1.11",
+		"file-loader": "^5.0.1",
 		"flow-bin": "^0.71.0",
 		"node-sass": "^4.9.0",
 		"postcss": "^6.0.22",