fix(package): update loader-utils to version 1.0.4 (#1411)

https://greenkeeper.io/

Author: greenkeeper[bot]

package.json

@@ -66,7 +66,7 @@
     "http-status": "1.0.1",
     "is-windows-bash": "1.0.3",
     "json-loader": "0.5.4",
-    "loader-utils": "1.0.3",
+    "loader-utils": "1.0.4",
     "minimist": "1.2.0",
     "mitt": "1.1.0",
     "mkdirp-then": "1.2.0",