chore(package): update url-loader to version 2.0.1

Closes #556

Author: greenkeeper[bot]

package.json

@@ -171,7 +171,7 @@
     "tslint-loader": "3.5.3",
     "typedoc": "0.9.0",
     "typescript": "2.6.1",
-    "url-loader": "0.6.2",
+    "url-loader": "2.0.1",
     "webpack": "3.8.1",
     "webpack-dev-middleware": "1.12.0",
     "webpack-dev-server": "2.9.3",